REPAIRING / SERVICING TV PHILIPS 32PHS4132

Repair of PHILIPS 32PHS4132 TV set
Technical description and components of the TV set PHILIPS 32PHS4132, type of panel and modules used. Module composition.
PHILIPS LED
Model: 32PHS4132/60

Chassis/Version: TPN17.1E LA

Panel: TPT315B5-FHBN0.K

LED driver (backlight): integrated into PSU

PWM LED driver: PF7708BS

MOSFET LED driver: MTBA5N10J3

Power Supply (PSU): 715G7734-P01-005-002H

PWM Power: PF6005AS

MOSFET Power: TK6A65D

MainBoard: 715G8659-M01-000-004Y

IC MainBoard: CPU: NT72461, NAND: W29N01HVSINF, AUDIO: TAS5753MD

Тuner: TDSY-G430D

Possible Manifestations of Defects

- PHILIPS 32PHS4132 TV does not turn on, does not respond to the remote control and control panel buttons, the indicators are not lit or flashing.

Usually with such manifestations defect is caused by faulty elements in the main power module 715G7734. It is necessary to measure its output voltages, and in case of their absence (complete or partial), you should check the serviceability of the power keys (TK6A65D) converters and rectifier diodes for possible short circuit.
At breakdown of semiconductors in the secondary circuits of any converter, as a rule, it can work in the short-circuit emergency mode without output voltages, and at short circuit in the elements of the primary circuit most often the line fuse and more rarely the current sensor in the source of the key break immediately.
Breakdown of power switches (MosFet) in pulse sources is sometimes caused by faults in other circuit elements, for example, in the circuits supplying the PWM controller, frequency-retaining or damping circuits, as well as in the Negative Feedback (NF) stabilization circuits. PWM regulators PF6005AS, if they do not have visible housing damage and outright short circuit between pins, are usually checked by replacement.

- No picture, but there is sound and all other functions work. Sometimes when switching on the image appears for a second and then disappears.

READ HOW TO REPAIR THE TV LED BACKLIGHT --------------> HERE.

Often in such cases there is no backlighting of the LED panel. The cause may be found in the failure of the LEDs, in violation of the contact connections of the LED strips, or in their power supply (LED-driver).
It is impossible to check the LED strips for breakage without disassembling the panel with a multimeter or a tester. For this purpose, you need to open all the PN-junctions connected in series and will need a voltage of about tens of volts, and ideally - a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters tend to light up a single 3 volt LED slightly in the forward direction. In the case of twin 6-volt LEDs, the PN junction of its safety regulator may be a good indicator. Faulty LEDs will either have a broken regulator or a short circuit.

If the PHILIPS 32PHS4132 has no picture but has sound, often the TPT315B5-FHBN0.K display backlight simply does not work. Moreover, in LED TVs usually fail the LEDs inside the panel, less often the LED-driver.
In such cases you can see a faintly visible image when external light hits the screen.

To replace the LEDs requires disassembly of the LCD-panel TPT315B5-FHBN0.K - the process requiring a master of experience and expertise. We do not recommend to perform such works by yourself to owners of TV sets and craftsmen who do not have experience in LCD panel repair

If there is no image, but backlighting works - the screen becomes slightly lighter when you turn on the TV, and in the open TV you can see the light through the holes in the body of the panel.
In this case the panel may be defective - damage to the strips, cables, for example, as a consequence of moisture after an unsuccessful washing of the screen, the T-CON board (Timing Controller) may be defective. But quite often the MainBoard 715G8659-M01-000-004Y is defective, also software failure is possible.
Then first it is necessary to check the panel power supply voltage, fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.
If these measurements are within normal limits, you need to trace by oscilloscope the LVDS signals from MainBoard 715G8659-M01-000-004Y, as well as synchronizing signals to driver stubs.

Filled or unsuccessfully washed LED TV screens can be restored in about half of the cases, usually, if there is no significant damage to the panel stubs and slats.

- The TV does not go into the operating mode, the remote control does not respond. Front panel LED's are either constantly on or blinking.

Repair or diagnostic of the motherboard 715G8659-M01-000-004Y should begin with checking the stabilizers and power converters necessary to power the chips and matrix. Software (software) should be updated or replaced if necessary. Sometimes elements of MainBoard should be checked or replaced (if necessary) - CPU: NT72461, NAND: W29N01HVSINF, AUDIO: TAS5753MD. If a BGA processor is used, its malfunction is usually detected by local heating.

Before replacing the TDSY-G430D tuner if you cannot tune to the TV channels, make sure the supply voltages are present and measure them on the respective pins of the tuner and check the software for correctness. The tuner-to-processor communication pulses can be checked with an oscilloscope

Please remember! Attempts to repair PHILIPS 32PHS4132 TV-set by yourself, in the absence of necessary qualification and experience are strongly not recommended and are fraught with negative consequences, up to the full unrepairability of the device!

DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------> PHILIPS 32PHS4032 Chassis TPN17.1E EU.

DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------> 22PFS4232/12, 43PFT4112/05, 22PFT4232/12, 43PFT4112/12, 32PFS4132/12, 24PFS4032/12, 32PFT4132/05, 24PFT4032/12, 32PFT4132/12, 24PFT4032/60, 32PFT4132/60, 24PHS4032/12, 32PHS4132/12, 24PHT4032/05, 32PHT4132/05, 24PHT4032/12, 32PHT4132/12, 24PHT4032/60, 32PHT4132/60, 32PHS4032/12, 43PFS4132/12, 32PHT4032/12, 43PFT4132/05, 32PHT4032/60, 43PFT4132/12, 22PFS4022/12, 43PFT4132/60, 22PFT4022/05, 49PFS4132/12, 22PFT4022/12, 49PFT4132/12, 22PFT4022/60, 32PHS4112/12, 24PFS4022/12, 32PHT4112/05, 24PFT4022/12, 32PHT4112/12, 24PFT4022/60, 39PHS4112/12, 24PHS4022/12, 39PHT4112/05, 24PHT4022/05, 39PHT4112/12, 24PHT4022/12, 43PFS4112/12. Chassis TPN17.1E EU



 Refinement after repair of the backlight. 715G7734-P01-005-002H, PF7708BS. Information from the master.

Reduce backlight current from 1 A to 800 mA - removed one of the resistors (R8653) in the LED driver current sensor on the power supply board 715G7734-P01-005-002H.
Driver current limitation. 715G7734, PF7708BS. General Information.

The driver chip is PF7708BS, the current sensor is five resistors R8652, R8653, R8654, R8655, R8656 connected pa in the LED current circuit on the 715G7734-xx-xx-xxx power supply board.
To reduce the backlight current you can remove one or two of the current sensor resistors in the 715G7734 power supply.
715G7734 current backlight

DOWNLOAD----------->  PDF document PF7708B is attached.

  Ways to limit the current in LED backlight drivers:

There is a lot of information on the Internet about ways to limit the current in the LED backlighting for different TVs and LED drivers. A lot of it is written plausibly but sometimes it is written by people far from electronics in order to publish any popular content on hot topics to boost web-sites ratings.

It's impossible to talk about each case separately within one article, because even similar models may have different panels and different boards with their own driver variants. But there are basic principles that are clear to craftsmen with even minimal knowledge and skill.

Other popular, complex and controversial current limit cases will be published as information becomes available.
There are three basic ways to reduce the backlight current.

1. By increasing the resistance of the LED current sensor - a low-resistance measuring resistor in the cathode (LED-) circuit.
2. Increasing the ratings of the resistors on the ISET (current setting) input of the LED driver chip.
3. changing the resistor ratings in the divider on the ADIM (Dimming) control input.

The fundamental difference between input ISET and ADIM is that ISET - input inverted, as FB, and ADIM - direct.

More on MainBoard Repair

The MainBoard 715G8659-M01-000-004Y is shown in the figure below:

715G8659-M01-000-004Y

The main features of the PHILIPS 32PHS4132 device:

TPT315B5-FHBN0.K matrix (LED panel) is installed.
To power the LED backlight applied converter, combined with a power supply, controlled by PWM controller PF7708BS. As the power elements of LED-driver are used switches type MTBA5N10J3.
Required supply voltages for all PHILIPS 32PHS4132 TV assemblies are generated by power supply module

715G7734-P01-005-002H or its analogues using PF6005AS chips and TK6A65D type power keys.
MainBoard - the main board (motherboard) is a module 715G8659-M01-000-004Y, with the use of chips CPU: NT72461, NAND: W29N01HVSINF, AUDIO: TAS5753MD and others.
The TDSY-G430D tuner provides TV program reception and channel tuning.

Instructions and updates

Software update (firmware).

Version: 000.002.180.000 ZIP file, 42.3 MB November 10, 2020

Russian version.

Documentation:

Quick Start Guide PDF file, 1.6 MB December 1, 2017.

Brochure Version: 2.1.1 PDF file, 479.7 kB July 19, 2019

Operating instructions PDF file, 2.9 MB December 1, 2017.

Files can be downloaded from the manufacturer's website for the 32PHS4132/60 model.


TV PHILIPS 32PHS4132 with LCD TPT315B5-FHBN0.K, 31.5" (80 cm) diagonal size 16:9. The required brightness of 280 cd/m² screen is provided by an LED backlight. In the LCD-panel is implemented a backlight of Direct LEDs.
The TPT315B5-FHBN0.K matrix and MainBoard software 715G8659-M01-000-004Y enable high quality HD viewing at 1366x768 pixels in 720p (HD Ready). Supported media file formats are MP3, WMA, MPEG4, HEVC (H.265), MKV, JPEG.
The sound system capacity of 16 W (2x8 W) is provided by two speakers. NICAM stereo signal processing system and Sound Surround surround sound function are used.
External interface (connection with other devices) is supported by standard input and output connectors: antenna input (RF), HDMI x2, USB. There is a headphone output. The digital tuner can receive TV channels in the standards DVB-T, DVB-T2, DVB-C, DVB-S, DVB-S2.

The TV uses a power supply 715G7734-P01-005-002H.

Dimensions: with stand 727x479x185 mm, without stand 727x425x82 mm.

TV weight: with stand 4.85kg, without stand 4.8kg.

Warning. The panel TPT315B5-FHBN0.K of your PHILIPS 32PHS4132 LED TV is an expensive and unreliable part of it.
Avoid any kind of impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
Also it is not safe to get liquid on the screen. Sometimes one drop is enough if it drips down the glass onto the cables and the TV becomes unrepairable.

REPAIRING / SERVICING TV PHILIPS 40PFT4009

 Technical description and composition of the PHILIPS 40PFT4009 TV, type of panel and modules used. Module composition.

PHILIPS LED
Model: 40PFT4009/60

Chassis/version: TPN14.1E LA

Panel: TPT400LA-J6PE1 REV SC1L

LED driver (backlight): Built-in power supply

PWM LED driver: PF7708AS

MOSFET LED driver: CYS9240

Power supply (PSU): 715G6934-P0D-000-020

PWM power supply: PF6003AHS, AOZ3015AI

MOSFET power supply: TK8A65D

MainBoard: 715G6901-M0C-000-004T

IC MainBoard: CPU: NT72567BG, Audio: AD87588

Tuner: NT78822
General recommendations for LCD LED TV repair
Possible Manifestations of Defects

- PHILIPS 40PFT4009 does not turn on, indicators on the front panel are not glowing and not blinking. The TV does not respond to the remote control.

In some cases the power module 715G6934-POD-000-020 is defective with such manifestations. It is necessary to measure its output voltages and in case of their absence check the serviceability of the power keys (TK8A65D) and the rectifier diodes in the converters for the probable breakdown.
If the semiconductors in the secondary circuits breakdown, the inverter can usually be short-circuited, and the mains fuse often blows when the power elements in the primary circuit are shorted.
Breakdown of the Mos-Fet switches used in switching sources is often caused by faults in other elements, such as in the PWM controller supply circuit, in the frequency-retaining or damping circuits, and in the Negative Feedback Stabilization circuit. PWM microcircuits PF6003AHS, AOZ3015AI are usually checked by replacement with new or known good ones.

- No picture, sound is present, remote control responds. Or the image can appear for a second and then immediately disappear.

Usually in such cases there is no backlight of the LED panel (matrix). The cause can sometimes be in the power supply of LEDs, but more often in their failure (breakage or breakage), sometimes in violation of the contact connections of LED strips.
It is impossible to detect a breakage in the line of LEDs without disassembling the panel with a simple multimeter. LEDs are connected in series and to open their transitions, you will need a voltage of several tens of volts. Ideally a current source would be suitable for this purpose. You can open up the panel and check each LED separately. Usually, Chinese multimeters will light up one 3 volt LED slightly if you connect the probes to it in the forward direction (red probe to the anode, black probe to the cathode). For twin 6-volt LEDs, the PN junction of its faulty regulator can be an indicator of the health of the LED. If the LED is faulty, it will either be open or shorted.

If the PHILIPS 40PFT4009 has no picture but has sound, often the TPT400LA-J6PE1 REV SC1L display backlight simply does not work. Moreover, in LED TVs usually fail LEDs inside the panel, less often the LED-driver.
In such cases you can see a faintly visible image when external light hits the screen.

To replace the LEDs requires disassembly of the LCD panel TPT400LA-J6PE1 - the process requiring a master of experience and expertise. We do not recommend to perform such works by yourself to owners of TV sets and craftsmen who have no experience in LCD panel repair.

READ HOW TO REPAIR THE TV LED BACKLIGHT --------------> HERE.

If there is no image, but backlighting works - the screen becomes slightly lighter when the TV is switched on, and in the open TV you can see the light through the holes in the body of the panel.
In this case the panel may be defective - damage to the strips, cables, for example, as a consequence of moisture after an unsuccessful washing of the screen, the T-CON board (Timing Controller) may be defective. But quite often the MainBoard 715G6901-MOC-000-004T is defective, software failure is also possible.
Then first it is necessary to check the panel power supply voltage, fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.
If these measurements are within normal limits, you need to trace by oscilloscope the LVDS signals from MainBoard 715G6901-MOC-000-004T, as well as synchronizing signals to driver stubs.

Filled or badly washed LED TV screens can be restored in about half of the cases, usually, if there are no significant damages in the cables and bars of the panel.

- The TV set will not turn on, the LED will indicate standby or operation mode, or it will blink.

Repair or diagnosis of the motherboard 715G6901-M0C-000-004T should begin with checking the stabilizers and power converters needed to power the chips and matrix. Software (software) should be updated or replaced if necessary. Sometimes elements of MainBoard must be checked or replaced (if necessary) - CPU: NT72567BG, Audio: AD87588. If a BGA processor is used, its malfunction is usually found by local heating.

Before replacing the NT78822 tuner, if you cannot tune to the TV channels, make sure the supply voltages are present and measure them on the corresponding pins of the tuner and check the software for correctness. The tuner-to-processor communication pulses can be checked with an oscilloscope

Users and owners of TV sets should be aware that attempting to repair the PHILIPS 40PFT4009 without the necessary expertise and experience, can have seriously negative consequences!

DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------> PHILIPS 40PFT4009 Chassis TPN14.1E LA.

DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>   FOR MODELS:  20PHH4109/60, 22PFH4109/88, 22PFK4109/12, 22PFT4109/12, 22PFK4209/12, 23PHH4009/88, 23PHK4009/12, 23PHT4009/12, 23PHH4109/60, 24PHH4109/88, 24PHH4109/60, 24PHK4109/12, 24PHT4109/12, 24PHH5219/88, 24PHT5219/12, 28PHH4109/88, 32PHH4009/88, 32PHK4009/12, 32PHT4009/12, 32PHH4009/60, 32PFH4009/88, 32PFK4009/12, 32PFT4009/12, 32PHH4109/88, 32PFH4109/88, 32PFT4109/12, 32PHT4109/12, 32PHH4109/60, 32PFK4109/12, 32PHK4109/12, 32PHH4309/88, 32PHK4309/12, 32PFH4309/88, 32PHH4309/60, 32PHT4309/12, 32PFK4309/12, 32PFT4309/12, 32PFT4309/60, 32PHH4319/88, 32PHT4319/12, 32PHH4329/88, 32PFH4399/88, 32PHK5109/12, 40PFH4009/88, 40PFK4009/12, 40PFT4009/12, 40PFT4009/60, 40PFH4109/88, 40PFT4109/12, 40PFK4109/12, 40PFT4109/60, 40PFH4309/88, 40PFK4309/12, 40PFT4309/12, 40PFT4309/60, 40PFH4319/88, 40PFT4319/12, 40PFH4329/88, 40PFH4399/88, 40PFK5109/12, 42PFK5199/12, 42PFH5209/88, 42PFK5209/12, 42PFT5209/12, 42PFT5209/60, 47PFH4109/88, 47PFT4109/12, 47PFK4109/12, 47PFK5199/12, 47PFH5209/88, 47PFK5209/12, 47PFT5209/12, 47PFT5209/60, 48PFK5109/12, 50PFH4009/88, 50PFK4009/12, 50PFT4009/12, 50PFH4109/88, 50PFK4109/12, 50PFT4109/12, 50PFH4309/88, 50PFT4309/12, 55PFH5109/88, 55PFK5109/12, 55PFT5109/12, 55PFK5199/12, 55PFH5209/88, 55PFK5209/12, 55PFT5209/12, 50PFK4309/12.  Chassis TPN14.1E LA

 After repair of the backlight 715G6934-P0D-000-020, PF7708AS. Information from the master.

There are sensor resistors on the power supply board to set the backlight current R8613, R8614, R8615, R8616, R8617, R8618.
To reduce the backlight current, I removed two 1.2 Ohm resistors in the current sensor.
Driver current limitation. 715G6934, PF7708AS. General information.

To reduce the backlight current in the TV's with the 715G6934 power supply, and the PF7708BS LED driver chip, there are resistors as current sensor connected in parallel, R8613, R8614, R8615, R8616, R8617, R8618 connected to pin 8 of the PF7708AS.
You can remove one or two of them, then the total resistance of the resistor assembly will increase and the current in the backlight LEDs will decrease proportionally.
715G6934 current backlight
More on MainBoard Repair

 

 

  Ways to limit the current in LED backlight drivers:

There is a lot of information on the Internet about ways to limit the current in the LED backlighting for different TVs and LED drivers. A lot of it is written plausibly but sometimes it is written by people far from electronics in order to publish any popular content on hot topics to boost web-sites ratings.

It's impossible to talk about each case separately within one article, because even similar models may have different panels and different boards with their own driver variants. But there are basic principles that are clear to craftsmen with even minimal knowledge and skill.

Other popular, complex and controversial current limit cases will be published as information becomes available.
There are three basic ways to reduce the backlight current.

1. By increasing the resistance of the LED current sensor - a low-resistance measuring resistor in the cathode (LED-) circuit.
2. Increasing the ratings of the resistors on the ISET (current setting) input of the LED driver chip.
3. changing the resistor ratings in the divider on the ADIM (Dimming) control input.

The fundamental difference between input ISET and ADIM is that ISET - input inverted, as FB, and ADIM - direct.

 

The MainBoard 715G6901-M0C-000-004T is shown in the figure below:

715G6901-M0C-000-004T

The main features of the PHILIPS 40PFT4009:

TPT400LA-J6PE1 REV SC1L matrix (LED panel) is installed.
To power the LED backlight used converter, combined with a power supply, controlled by PWM controller PF7708AS. As the power elements of LED-driver CYS9240 type switches are used.
Required supply voltages for all PHILIPS 40PFT4009 TV assemblies are generated by the 715G6934-P0D-000-020 power supply module or its analogues using PF6003AHS, AOZ3015AI chips and TK8A65D type power keys.
MainBoard - the main board (motherboard) is a module 715G6901-M0C-000-004T, with the use of chips CPU: NT72567BG, Audio: AD87588 and others.
The NT78822 tuner allows you to receive TV programs and tune to channels.


Software update (firmware).

Version: V3.350, zip file, 58.9 MB, published April 7, 2016.

Russian version.

Documentation:

Quick guide PDF file, 1.3 MB, published July 25, 2014.

Brochure Version:2.3.1, PDF file, 537.9 kB, published July 19, 2019.

Operating instructions PDF file, 1.6 MB, published October 15, 2014.

Files can be downloaded from the manufacturer's website for the 40PFT4009/60 model.

PHILIPS 40PFT4009 LCD TV with a 40" (102 cm) diagonal 16:9 aspect ratio. The required brightness of 280 cd/m² is provided by the LED backlight. In the manufacturing technology of the display model is implemented LED backlighting.
The design and technical capabilities of the TV show provide for viewing shows and movies in HD quality at a resolution of 1920x1080 pixels in 1080p (Full HD). Input high frequency or video signal can be processed in PAL, SECAM, NTSC analog systems. Graphical processing and digital signal formation is performed in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
The sound system capacity of 10 W (2x5 W) is provided by two speakers. NICAM stereo signal processing and Sound Surround surround sound function are used.
External interface (connection with other devices) is supported by standard input and output connectors: antenna input (RF), SCART, RGB, HDMI x2, USB. There is a headphone output. To connect a computer or laptop to this TV model uses a VGA (D-Sub 15) connector on the TV body, this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080. The digital tuner is able to receive DVB-T, DVB-T2, DVB-C TV channels.

Overall dimensions: with stand 904x550x256 mm, without stand 904x523x88 mm.

TV weight: with stand 7.8 kg, without stand 7.4 kg.

Warning. The panel of your PHILIPS 40PFT4009 LED TV is an expensive and unreliable part of the TV.
Avoid any kind of impact on the glass and pressure on the screen surface to avoid damaging the LED panel!
It is also not safe to get liquid on the screen. Sometimes one drop is enough if it drips down the glass onto the cables and the TV becomes unrepairable.

REPAIRING / SERVICING TV PHILIPS 43PUS6401

Technical description and composition of  PHILIPS 43PUS6401 TV, type of panel and modules used. Module composition.

Specifications
PHILIPS 43PUS6401
LCD TV LED Smart TV UHD 43PUS6401 | Year of manufacture: 2016
Screen diagonal: 43" (109 cm)
Aspect ratio: 16:9
Resolution: 3840x2160
LCD panel type: TPT430U3-EQYSHM.G
LED backlight: Yes
Smart: yes. Wi-Fi support: yes
Operating system: Android TV
Support HD: 4K UHD
Brightness: 300 cd/m2
Progressive scan: Yes
TV Standards: PAL, SECAM, NTSC
Digital tuner: DVB-T, DVB-T2, DVB-C, DVB-S
Teletext: 1000 page memory.
DTV formats: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 2160p
Multimedia: MP3, WMA, MPEG4, MKV, JPEG
Sound stereo: there is
Sound power: 20W (2x10W)
Acoustics: two speakers
Interface: AV, audio x2, component, SCART, RGB, HDMI x4, USB x3, Ethernet (RJ-45), Wi-Fi
Headphone jack: yes
TV weight: with stand: 9.9 kg
without stand: 9.4 kg
Dimensions: with stand 968x576x204mm
without stand 968x623x77mm
PHILIPS 43PUS6401

PHILIPS LED
Model: 43PUS6401/12

Chassis/Version: QM16.3E LA

Panel: TPT430U3-EQYSHM.G

LED backlight: GJ-2K16-430-D512-V4

T-CON: 6870C-0552A V15 43UHD TM120

LED driver (backlight): integrated into PSU

PWM LED driver: PF6002AS

MOSFET LED driver: TK11A65D

Power Supply (PSU): 715G7350-P01-000-002S

PWM Power: LD7591T, SSC3S121A

MOSFET Power: TK20A60W

MainBoard: 715G7776-M0F-B01-005K

IC MainBoard: CPU, eMMC, DRAM, AUDIO, DC/DC

Tune: TDSY-G430D

Control: WI-FI: 8WUSND16.4A1G
General advice about LCD LED TV repair
Possible problems

- PHILIPS 43PUS6401 TV does not turn on. There is no indication of any functionality. No LEDs on the front panel are not blinking or on, the TV does not respond.

In cases like this, the problem should start with the power supply circuits 715G7350-P01-000-002S. It is necessary to measure in its secondary circuits output voltages, and in case of their complete absence, you should check the serviceability of the power switches (TK20A60W) and the rectifier diodes for possible breakdown (short circuit).
If there is a breakdown in the secondary circuits, the inverter may be short-circuited, and if there is a short in the primary circuit elements, the mains fuse usually blows.
Breakdown of power switches (MosFet) in pulsed sources, sometimes caused by faults in other circuit elements, for example, in the circuits that feed the PWM controller, frequency-retaining or damping circuits, as well as in the negative feedback (negative feedback) stabilization circuits. PWM regulators (PWM) LD7591T, SSC3S121A, if do not have visible damage to the housing and outright short circuit between the pins, usually checked by replacing.

- No picture, but there is sound and the remote responds. Or the image appears at power on and immediately disappears.

Often in such cases there is no backlight of the LED panel. The reason can be found in the malfunction LEDs, in violation of the contact connections of the LED strips GJ-2K16-430-D512-V4, or in their power supply (LED-driver).
It is impossible to check the LED strips for breakage without disassembling the panel with a multimeter or a tester. For this purpose, you need to open all the series-connected PN-junctions and will need a voltage of about tens of volts, and ideally - a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters tend to light up a single 3 volt LED slightly in the forward direction. In the case of twin 6 volt LEDs, the PN junction of its safety regulator may be a good indicator. In faulty LEDs, the regulator will either be broken or broken in short circuit.

If PHILIPS 43PUS6401 has no picture, but there is sound, often the backlight of the display TPT430U3-EQYSHM.G. Moreover, in LED-TVs usually fail LEDs inside the panel, less often the LED-driver.
In such cases you can see a faintly visible image when external light hits the screen.

To replace the LEDs requires disassembly of the LCD-panel TPT430U3-EQYSHM.G - the process requiring a master of experience and expertise. We do not recommend to perform such works by yourself to owners of TV sets and craftsmen who have no experience in LCD panel repair.

READ HOW TO REPAIR THE TV LED BACKLIGHT --------------> HERE.

If there is no image, but backlighting works - the screen becomes slightly lighter when the TV is switched on, and in the open TV you can see the light through the holes in the body of the panel.
In this case the panel may be defective - damage to the strips, cables, for example, as a consequence of moisture after an unsuccessful washing of the screen, the T-CON board (Timing Controller) may be defective. But often the MainBoard 715G7776-M0F-B01-005K is also faulty, and software failure is also possible.
Then first it is necessary to check the panel power supply voltage, fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.
If these measurements are within normal limits, you need to trace by oscilloscope the LVDS signals from MainBoard 715G7776-M0F-B01-005K, as well as synchronizing signals to driver stubs.

Filled or badly washed LED TV screens can be restored in about half of the cases, usually, if there are not significant damages in the hinges and slats of the panel.

- The TV does not turn on, the remote control does not respond. Indicator is blinking or in standby mode.

Repair or diagnostic of the motherboard 715G7776-M0F-B01-005K should begin with checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (firmware).

To owners of TV set 43PUS6401 we recommend to apply only to qualified specialists with necessary experience for repair! Attempting to repair it yourself without proper knowledge and skills can lead to irreversible negative consequences!


DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>   PHILIPS 43PUS6401 Chassis QM16.3E LA LA.

 

DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------> FOR MODELS : 43PUS6501/12, 43PUS6501/60, 43PUS6551/12, 43PUS6401/12, 43PUS6401/60, 43PUT6401/12, 49PUS6401/12, 49PUT6401/12, 49PUS6401/60, 49PUS6501/12, 49PUS6501/60, 49PUS6551/12, 49PUS6561/12, 49PUS6581/12, 49PUS7101/12, 49PUS7101/60, 49PUS7181/12, 55PUS6401/12, 55PUT6401/12, 55PUS6401/60, 55PUS6501/12, 55PUS6501/60, 55PUS6551/12, 55PUS6561/12, 55PUS6581/12, 55PUS7101/12, 55PUS7101/60, 55PUS7181/12, 65PUS6521/12, 65PUS6521/60, 65PUS7101/12, 65PUS7601/12, 75PUS7101/12, 75PUS7101/60.   Chassis QM16.3E LA

Refinement after repair of the backlight. 715G7350-P01-000-002S, PF6002AS. Information from the master.

Reduce backlight current from 190 mA to 140 mA - removed resistors R8625, R8633 in the LED driver current sensors on the 715G7350-P01-000-002S board.
Driver current limitation. 715G7350-P01-000-002S. 

General information.

To reduce the backlight current in TVs with the 715G7350-P01-000-002S power supply, the board has two assemblies of resistors (current sensors) for the two channels, R8624, R8625, R8626, R8627 and R8631, R8632, R8633, R8634. You can remove one or two resistors in each assembly for both channels equally.
715G7350-P01-000-002S current backlight
More on MainBoard Repair

 

 

 

The MainBoard 715G7776-M0F-B01-005K is shown in the figure below:

715G7776-M0F-B01-005K

The main features of the PHILIPS 43PUS6401 device:

A matrix (LED panel) TPT430U3-EQYSHM.G is installed.
Timing Controller (T-CON) 6870C-0552A is used to control the matrix.
The converter combined with a power supply is used to power the LED backlight and is controlled by a PWM controller PF6002AS. As the power elements of LED-driver are used switches type TK11A65D.
Required supply voltages for all PHILIPS 43PUS6401 TV assemblies are generated by power supply module 715G7350-P01-000-002S or its analogues using LD7591T, SSC3S121A chips and TK20A60W type power keys.
MainBoard - the main board (motherboard) is a module 715G7776-M0F-B01-005K, with the use of chips CPU, eMMC, DRAM, AUDIO, DC/DC and others.
The TDSY-G430D tuner provides TV program reception and channel tuning.

Software update (firmware).

Version: 000.026.068.000, zip file, 945.8 MB, published December 9, 2019.

Russian version.

Documentation:

Brochure Version:11.0.1, PDF file, 550.0 kB, published May 14, 2020.

Quick Start Guide PDF file, 1.8 MB, published April 11, 2017.

Operating instructions PDF file, 4.4 MB, published April 23, 2018.

You can download the files from the manufacturer's website for the 43PUS6401/60 model.


PHILIPS 43PUS6401 LCD TV TPT430U3-EQYSHM.G, 43" (109 cm) diagonal. (109 cm) in 16:9 aspect ratio. The required brightness of 300 cd/m² is provided by an LED backlight. In the technology of manufacture of the display model is implemented LED backlighting.
Matrix TPT430U3-EQYSHM.G and MainBoard software 715G7776-M0F-B01-005K able to realize the image in the highest quality UHD at 3840x2160 pixels in 4K UHD standard.
The 43PUS6401 has built-in SMART software and the Android TV Operating System. Connection to the network can be made through Wi-Fi wireless communication. Input high frequency or video signal can be processed in PAL, SECAM, NTSC analog systems. Graphical processing and digital signal formation is performed in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 2160p. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
The sound system capacity of 20 W (2x10 W) is provided by two speakers. NICAM STEREO audio processing system is used.
External interface (connection to other devices) is supported by standard inputs and outputs: antenna input (RF), AV, audio x2, component, SCART, RGB, HDMI x4, USB x3, Ethernet (RJ-45), Wi-Fi. There is a headphone output. To connect a computer or laptop to this TV model uses a VGA (D-Sub 15) connector on the TV body, this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080, 3840x2160. The digital tuner is able to receive TV channels in the standards DVB-T, DVB-T2, DVB-C, DVB-S, DVB-S2.

The TV uses a power supply 715G7350-P01-000-002S.

Dimensions: with stand 968x576x204 mm, without stand 968x623x77 mm.

TV weight: with stand 9.9 kg, without stand 9.4 kg.

Warning. The panel TPT430U3-EQYSHM.G LED-TV PHILIPS 43PUS6401 is an expensive and unreliable part of the TV.
Do not allow any impacts on the glass and pressure on the surface of the screen to avoid damage to the LED-panel!
Also it is not safe to get liquid on the screen. Sometimes one drop is enough if it drips down the glass onto the cables and the TV becomes unrepairable.

REPAIRING / SERVICING TV PHILIPS 32PHT5301

Technical description and composition of the PHILIPS 32PHT5301 TV, type of panel and modules used. Module composition.

PHILIPS LED
Model: 32PHT5301/60

Chassis/Version: TPM16.1E LA

Panel: TPT315B5-WHBN0.K REV:S8D62E

LED backlight: LB32080 V0_00

LED driver (backlight): integrated into PSU

PWM LED driver: PF7708BS

MOSFET LED driver: MTBA5N10J3

Power Supply (PSU): 715G7734-P01-003-002H

PWM Power: PF6005AS

MOSFET Power: TK6A65D

MainBoard: 715G8198-M01-B00-004T

IC MainBoard: CPU: MT5800, EEPROM: M24128, eMMC: 4GB THGBMDG5D1LBAIT, Audio: AD87588

YouTure: ST42CS-2-E & SAT

Specifications 32PHT5301
PHILIPS 32PHT5301
General advice for LCD LED TV repair
Possible Fault Findings

- PHILIPS 32PHT5301 does not turn on, front panel indicators are not lit or blinking. The TV set does not respond to control buttons and remote control.

In such cases, the power supply 715G7734 is usually found to be defective. The output voltages should be measured and if not, the power switches (TK6A65D) of the converters and the rectifier diodes should be checked for faults.
If the semiconductors in the secondary circuits break down, the inverter can usually be short-circuited and the mains fuse is often blown when a short circuit occurs in the power elements of the primary circuit.
Mos-Fet switches used in switched-mode power supplies usually fail due to the failure of other elements that can make it fail in key mode, or cause it to exceed the maximum current or voltage values. These may be the circuits supplying the PWM controller, the damping or frequency-retaining circuits, or the negative feedback elements in the stabilisation circuit. PF6005AS PWM controllers, if there is no external damage or short circuit between the terminals, check by replacing them with a known good one.

- No display, but sound is present and responds to remote control. Or the image appears at power on and immediately disappears

In this case backlight of LED panel is defective. Often the cause is a breakage of LEDs, or poor contact in the connectors plates, less often faulty may be the LED-driver.
When diagnosing, please note that it is not possible to check for an open circuit in the LED strip circuit without disassembling the panel using a tester or multimeter. To open all PN-junctions connected in series, you will need a voltage of about several tens of volts, and ideally a current source. Once the panel is opened, each LED can be tested separately. Typically, Chinese multimeters will light up a single 3 volt LED slightly when the probes are connected in a forward direction. For twin 6 volt LEDs, the PN junction of its fault stabiliser can be an indicator of the correct operation of the LED. If the LED is faulty, it is either open or short-circuited.

- The TV does not turn on, the LED indicates standby or operation mode, or blinks.

If the PHILIPS 32PHT5301 has no picture but sound, often the backlight of the TPT315B5-WHBN0.K REV:S8D62E display simply does not work. Moreover, in LED TVs the LEDs inside the panel usually fail, less often the LED driver.
In such cases it is possible to see a faintly visible image when external light hits the screen.

Disassembly of the TPT315B5-WHBN0.K LCD panel is required to replace the LED's, a process which requires a great deal of experience and skill. Do not attempt this procedure yourself; it is not recommended for TV owners or craftsmen lacking experience in LCD panel repair

If there is no image, but backlighting works - the screen becomes slightly lighter when the TV is switched on and you can see the light through the holes in the panel body when the TV is open.
In this case the panel may be defective - damage to the boards, cables, for example, as a consequence of moisture after an unsuccessful washing of the screen, the T-CON board (Timing Controller) may be defective. But in many cases the MainBoard 715G8198-M01-B00-004T is defective, or there may be a software problem.
Then first it is necessary to check the panel supply voltage, the fuses on the T-CON board, and the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.
If these measurements are within normal limits, you need to trace with an oscilloscope the LVDS signals from MainBoard 715G8198-M01-B00-004T, as well as synchronizing signals to driver stubs.

Flooded or badly washed LED TV screens can be repaired in about half of all cases, usually if no significant damage has occurred to the panel stubs and strips.

Repair or diagnosis of the motherboard 715G8198-M01-B00-004T should begin with checking the stabilizers and power converters needed to power the chips and matrix. Software (software) should be updated or replaced if necessary. Difficult repairs to the MB (SSB) can only be carried out in a service centre with the necessary equipment. Check or replacement of CPU: MT5800, EEPROM: M24128, eMMC: 4GB THGBMDG5D1LBAIT, Audio: AD87588 requires the necessary training and professional skills to repair modules at component level. Problems using BGA soldering techniques can sometimes be diagnosed by heating.

If the TV works normally from external devices but does not tune to the TV channels, the ST42CS-2-E & SAT tuner may be faulty. In these cases you should first check that there is power to the corresponding pins. Also make sure that the tuner and the processor are communicating via I2C bus. Sometimes a software failure can be the cause of a malfunctioning tuner.

Once again, TV users are cautioned not to attempt repairs themselves, unless they have the knowledge, experience and expertise to do so. Entrust repairs to professionals with sufficient experience in the field of electronics repair.


DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>  Chassis TPM16.1E LA  FOR MODELS: 32PHS5301/12, 32PHS5301/12, 32PHS5301/12, 32PHS5301/12, 32PHT5301/12, 32PHT5301/12, 32PHT5301/12, 32PHT5301/12, 43PFS5301/12, 43PFT5301/12, 49PFS5301/12, 49PFS5301/12, 49PFS5301/12, 49PFS5301/12, 49PFT5301/12, 49PFT5301/12, 49PFT5301/12, 49PFT5301/12.  

 

Repairs after backlighting repair. 715G7734-P01-003-002H and PF7708BS. Information from the LAB.

Reduce backlight current from 1A to 700mA - removed two resistors (R8655 2 Ohm and R8654 1.2 Ohm) in the driver current sensor on board 715G7734-P01-003-002H near the backlight connector.

More on MainBoard repair

The MainBoard 715G8198-M01-B00-004T is shown in the illustration below:

Appearance of the power supply

Main features of PHILIPS 32PHT5301:

A matrix (LED panel) TPT315B5-WHBN0.K REV:S8D62E is installed.
A converter combined with a power supply unit is used to power the LED backlight and is controlled by a PWM controller PF7708BS. As the power elements of LED-driver switches MTBA5N10J3 type are used.
Required supply voltages for all PHILIPS 32PHT5301 TV assemblies are generated by power supply module 715G7734-P01-003-002H or its analogues using PF6005AS chips and TK6A65D type power keys.
MainBoard - the main board (motherboard) is 715G8198-M01-B00-004T module, using CPU: MT5800, EEPROM: M24128, eMMC: 4GB THGBMDG5D1LBAIT, Audio: AD87588 and others.
The ST42CS-2-E & SAT tuner provides TV programme reception and channel tuning.

Software update (firmware).

Version: 012.002.052.001, zip file, 315.6 MB, published 13 October 2019.

Documentation:

Quick guide PDF file, 2.7 MB, published 9 November 2016.

Brochure Version:3.1.1, PDF file, 443.2 kB, published 19 July 2019.

Operating instructions PDF file, 3.2 MB, published 9 February 2018.

The files can be downloaded from the manufacturer's website for the 32PHT5301/60 model.



PHILIPS 32PHT5301 LCD TV with TPT315B5-WHBN0.K, measuring 32" (81cm) diagonally in 16:9 aspect ratio. A brightness output of 280 cd/m² is provided by an LED backlight. The model's display technology uses LED backlighting.
The TPT315B5-WHBN0.K matrix and MainBoard software 715G8198-M01-B00-004T provide high quality HD viewing at a resolution of 1366x768 pixels in 720p (HD Ready).
32PHT5301 is equipped with SMART software and internet connectivity. Networking can be achieved using Wi-Fi wireless connectivity. Supported media formats are MP3, WMA, MPEG4, HEVC (H.265), MKV, JPEG.
The sound system has a capacity of 16W (2x8W) and is powered by two speakers. NICAM stereo processing and Sound Surround surround function are used.
External interface (connection to other devices) is supported by standard inputs and outputs: antenna input (RF), AV, component, HDMI x2, MHL, USB x2, Ethernet (RJ-45), Wi-Fi 802.11n. There is a headphone output. The digital tuner is capable of receiving DVB-T, DVB-T2, DVB-C TV channels.

The TV set uses the power supply 715G7734.

Overall dimensions: with stand 726x491x139mm, without stand 726x439x77mm.

TV weight: with stand: 5.16 kg, without stand: 4.9 kg.

Warning. The TPT315B5-WHBN0.K REV:S8D62E is an expensive and fragile part of your PHILIPS 32PHT5301 LED TV.
Avoid all impacts to the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also not safe to get liquids on the screen. Sometimes a single drop is enough if it drips down the glass onto the cables and the television becomes unrepairable.

REPAIRING / SERVICING TV PHILIPS 32PHS4062

Technical description and composition of the PHILIPS 32PHS4062 TV, panel type and modules used. The composition of the modules.
PHILIPS LED
Model: 32PHS4062 / 60
Chassis / Version: KTS17.2E LA
Panel: K320WDK3B
LED backlight: 4708-K32WDC
T-CON: 6870C-0442B
LED driver (backlight): integrated into MainBoard
PWM LED driver: OB3353CP
MOSFET LED driver: TO-252
Power Supply (PSU): integrated into MainBoard
MainBoard: MSD3663-T5C1
IC MainBoard: SPI FLASH: GD25Q64B
Tuner: ST43WS-2A-E, CDT-9NS16J-RD41 (DVB-S)
Specifications 32PHS4062
PHILIPS 32PHS4062
General recommendations for TV LCD LED repair
Possible manifestations of defects
- PHILIPS 32PHS4062 does not turn on, does not respond to buttons and the remote control, indicators on the front panel do not light or flash.
In this case, the main power supply, the AC / DC voltage converter, may be faulty, the elements of which in this model are located on the main board MainBoard MSD3663-T5C1. It is necessary to make sure that its output voltages are present and, if they are completely absent, check the power switches and rectifier diodes for a possible short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in short-circuit mode, and in case of short-circuit in the elements of the primary circuit, the mains fuse usually breaks off.
Mos-Fet power switches used in switching power supplies sometimes fail due to a malfunction of any other elements that can disable it in the key mode, or create an excess of the maximum permissible key parameters. These can be elements supplying a PWM regulator, frequency setting or damper circuits, or elements of negative feedback in the stabilization circuit. PWM controllers, in the absence of visible damage or outright short circuits between the terminals, are checked by replacing them with new ones, or known to be working properly.
- There is no image, the screen is black, there is sound, when the screen is illuminated outside, you can sometimes see barely noticeable outlines of the image.
Often in such cases, there is no backlighting of the LED panel. The reason may be in the breakage of the backlight LEDs, in the stabilization of their power supply, or in the violation of the contact connections of the strings 4708-K32WDC connectors.
When trying to detect a break in the LED lines, it should be borne in mind that it is difficult to do this without disassembling the panel. For example, a current source is needed to open PN junctions connected in series.

 If the PHILIPS 32PHS4062 has no picture, but there is sound, the backlight of the K320WDK3B display often simply does not work. Moreover, in LED TVs, the LEDs inside the panel usually fail, less often the LED driver.
In such cases, you can see a barely noticeable image with a successful hit of external light on the screen.
Replacing the LEDs requires disassembling the K320WDK3B LCD panel - a process that requires experience and qualifications from the master. I do not recommend doing such work on your own to the owners of TVs and craftsmen who do not have experience in repairing LCD panels

If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and in an open TV you can see the light through the holes in the panel case.
In this case, the panel may also be faulty - damage to strips, loops, for example, as a result of moisture ingress after unsuccessful washing of the screen, the T-CON (Timing Controller) board may be faulty. But the main board MainBoard MSD3663-T5C1 often turns out to be faulty; a software failure is also possible.

Then, first of all, you need to check the panel supply voltage, the fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.

If these measurements are within the normal range, it is necessary to trace the passage of LVDS signals from the MainBoard MSD3663-T5C1 with an oscilloscope, as well as synchronization signals to the loops with drivers.
Flooded or unsuccessfully washed screens of LED TVs can be restored, in about half of the cases, usually if significant damage has not formed in the loops and panel strips.

- The indicator on the front panel blinks, the TV does not turn on in operating mode, does not respond to the remote control.
Repair or diagnostics of the MSD3663-T5C1 motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Complicated repair of MB (SSB) board in some cases is possible and is practiced by repairmen. To do this, check and, if necessary, replace the SPI FLASH: GD25Q64B elements. BGA chip failures are usually easy to detect by warm-up.
If you suspect a malfunction of the ST43WS-2A-E, CDT-9NS16J-RD41 (DVB-S) tuner, first of all, you need to make sure that the software is correct, as well as the presence of the necessary levels of supply voltages and pulses of data exchange with the processor via the I2C bus on corresponding tuner pins.

I  REMIND THAT Owners and users of the PHILIPS 32PHS4062 TV should remember that self-repair without special knowledge, skills and qualifications may be fraught with negative consequences that can lead to complete non-repairability of the device!

DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>   PHILIPS 32PHS4062 Chassis KTS17.2E LA  FOR MODELS:        

Revision after repair of the backlight. MSD3663-T5C1. Information from the master.
Decrease the backlight current from 560 mA to 340 mA - removed two 3.6 Ohm measuring resistors. There are still two 2.0 Ohm resistors in the current sensor of the OB3353CP driver on the MSD3663-T5C1 board.

Additional MainBoard Repair
The appearance of the MainBoard MSD3663-T5C1 is shown in the figure below:

MSD3663-T5C1
The main features of the PHILIPS 32PHS4062 device:
Installed matrix (LED panel) K320WDK3B.
Matrix control uses the Timing Controller (T-CON) 6870C-0442B.
To power the backlight LEDs, a converter combined with the MSD3663-T5C1 main board is used, controlled by the OB3353CP PWM controller. TO-252 switches are used as power elements of the LED driver.
The power module is combined with the MainBoard and is made according to the AC / DC flyback converter circuit.
MainBoard - the main board (motherboard) is an MSD3663-T5C1 module, using SPI FLASH chips: GD25Q64B and others.
Tuner ST43WS-2A-E, CDT-9NS16J-RD41 (DVB-S) provides reception of television programs and tuning to channels.
 

 

PHILIPS 32PHS4062 TV with LCD K320WDK3B, diagonal size 31.5 "(80 cm) 16: 9. The required brightness of the screen of 250 cd / m² is provided by LED backlighting. The LCD panel is implemented with backlighting from Direct LED LEDs.
The K320WDK3B sensor and MainBoard MSD3663-T5C1 software provide high quality HD viewing at 1366x768 pixels in 720p (HD Ready). Supported media file formats: MP3, WMA, MPEG4, HEVC (H.265), MKV, JPEG.
Speaker power 16 W (2x8 W) is provided by two speakers. Uses NICAM stereo processing system and Sound Surround function.

External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, HDMI x2, USB. A headphone output is provided. The digital tuner is capable of receiving television channels in the DVB-T, DVB-T2, DVB-C, DVB-S, DVB-S2 standards.
The power consumed when operating from the network is 55 W. MainBoard power supply.
Dimensions: with stand 732x492x183 mm, without stand 732x432x76 mm.
TV weight: with stand: 3.9 kg, without stand: 3.8 kg.
Attention! Panel K320WDK3B LED TV PHILIPS 32PHS4062 is an expensive and unreliable element.
Avoid any impacts on the glass and pressure on the screen surface to avoid damage to the LED panel!

It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

 

Documentation:
Quick start guide PDF file, 2.2 MB, published January 17, 2018
Brochure Version: 2.1.1, PDF file, 465.7 kB, published July 19, 2019
User manual PDF file, 574.8 kB, published March 15, 2018
Files can be downloaded from the manufacturer's website for model 32PHS4062 / 60.

REPAIRING / SERVICING TV PHILIPS 55PFL6606K

Technical description and composition of the PHILIPS 55PFL6606K TV, panel type and modules used. The composition of the modules.
PHILIPS LED
Model: 55PFL6606K / 02
Chassis / Version: Q552.2E LA
Panel: LC550EUF-SDA1
LED driver (backlight): integrated into PSU
PWM LED driver: OZ9902GN SOP24
MOSFET LED driver: AOD450
Power Supply (PSU): PLDK-P011A PSL55-2
PWM Power: FA5591 (PFC), L6599, LNK362 (Stb)
MOSFET Power: 11N60 (PFC), STK0160
MainBoard: 313929714851 // 313929711861
IC MainBoard: PNX85537 29F4C08ABADA TPA3120D2
Tuner: TH2603
Specifications 55PFL6606K
PHILIPS 55PFL6606K
General recommendations for TV LCD LED repair
Possible manifestations of defects
- PHILIPS 55PFL6606K TV does not turn on, does not respond to the remote control and control panel buttons, does not light up or blink indicators.
In such cases, the PLDK-P011A power supply usually fails. Then we recommend that you measure its output voltages and, if they are absent, you should check the serviceability of the power switches (11N60 (PFC), STK0160) and the rectifier diodes of the converters for a possible short circuit.
In case of any breakdowns in the secondary circuits, the converter can operate in an emergency mode of a short circuit, and with a short circuit in the power elements of the primary circuit, the mains fuse or the current sensor at the source of the key is often cut off.
Mos-Fet power switches used in switching power supplies sometimes fail due to a malfunction of any other elements that can disable it in the key mode, or create an excess of the maximum permissible key parameters. These can be elements supplying a PWM regulator, frequency setting or damper circuits, or elements of negative feedback in the stabilization circuit. PWM controllers FA5591 (PFC), L6599, LNK362 (Stb), in the absence of visible damage or outright short circuits between the terminals, are checked by replacing them with new ones, or known to be working properly.
- There is no image, there is sound, it reacts to the remote control. Or, immediately after switching on for a second, the image may appear and immediately disappear.
In some of these cases, the malfunction is caused by the lack of display backlighting. The reason can be found in the malfunction of the LEDs, in the violation of the contact connections of the LED strips, or in the provision of their power supply (LED driver).
Without a special current source, it is impossible to check the line of series-connected LEDs, and it is unsafe for them to use any voltage sources over 12V for this purpose. Then all that remains is to open the panel and check each LED separately. Usually, Chinese multimeters with 9V power supply lightly light up one 3-volt LED, if you connect the probes to it in the forward direction, the red probe to the anode, the black one to the cathode. For dual 6-volt LEDs, the PN junction of its emergency zener diode can serve as an indicator of the LED health. In the event of a malfunction of the LED, its zener diode will either be cut off or pierced in the K / Z.

If the PHILIPS 55PFL6606K has no picture, but there is sound, the LC550EUF-SDA1 display backlight often simply does not work. Moreover, in LED TVs, the LEDs inside the panel usually fail, less often the LED driver.
In such cases, you can see a barely noticeable image with a successful hit of external light on the screen.
Replacing the LEDs requires disassembling the LC550EUF-SDA1 LCD panel - a process that requires experience and qualifications from the technician. I do not recommend doing such work on your own to the owners of TVs and craftsmen who do not have experience in repairing LCD panels

If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and in an open TV you can see the light through the holes in the panel case.
In this case, the panel may also be faulty - damage to strips, loops, for example, as a result of moisture ingress after unsuccessful washing of the screen, the T-CON (Timing Controller) board may be faulty. But often the main board MainBoard 313929714851 turns out to be faulty, a software failure is also possible.
Then, first of all, you need to check the panel supply voltage, the fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.

If these measurements are within normal limits, it is necessary to trace the passage of LVDS signals from MainBoard 313929714851, as well as synchronizing signals to loops with drivers, with an oscilloscope.
Flooded or unsuccessfully washed screens of LED TVs can be restored, in about half of the cases, usually if significant damage has not formed in the loops and panel strips.

- The TV does not turn on, the indicator signals the standby or operating mode, or blinks.
Repair or diagnostics of the motherboard 313929714851 should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). In cases of complex MB (SSB) repairs and with the necessary skills and equipment, it may sometimes be necessary to replace its PNX85537 29F4C08ABADA TPA3120D2 chips and other possible faulty components. Malfunctions associated with the use of BGA soldering technologies are usually easily diagnosed by the warm-up method.
Before changing the TH2603 tuner, if it is not possible to tune to television channels, you should make sure that there are supply voltages, which must be measured at the corresponding terminals of the tuner and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be monitored with an oscilloscope.

Owners of the 55PFL6606K TV are advised to contact only qualified specialists with the necessary experience for repair! Attempts to repair yourself without the appropriate knowledge and skills can lead to irreversible negative consequences!

 

 DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    PHILIPS 55PFL6606K Chassis Q552.2E LA FOR MODELS:      32HFL5573D/10, 32PFL5806K/02, 32HFL7406D/10, 32PDL7906H/12, 32PDL7906K/02, 32PDL7906M/08, 32PDL7906T/12, 32PFL6606H/12, 32PFL6606H/60, 32PFL6606K/02, 32PFL6606M/08, 32PFL6606T/12, 32PFL6626H/12, 32PFL6626K/02, 32PFL6626M/08, 32PFL6626T/12, 32PFL6636H/12, 32PFL6636K/02, 32PFL6636M/08, 32PFL6636T/12, 32PFL7406H/12, 32PFL7406H/60, 32PFL7406K/02, 32PFL7406M/08, 32PFL7406T/12, 32PFL7476H/12, 32PFL7476K/02, 32PFL7486H/12, 32PFL7486K/02, 32PFL7486M/08, 32PFL7496H/12, 32PFL7496K/02, 32PFL7606H/12, 32PFL7606H/60, 32PFL7606K/02, 32PFL7606M/08, 32PFL7606T/12, 37PFL6606H/12, 37PFL6606H/60, 37PFL6606K/02, 37PFL6606M/08, 37PFL6606T/12, 37PFL7606H/12, 37PFL7606K/02, 37PFL7606M/08, 37PFL7606T/12, 37PFL7666H/12, 37PFL7666K/02, 37PFL7666T/12, 37PFL7676H/12, 37PFL7676K/02, 40HFL5573D/10, 40PFL5806K/02, 40PFL6606H/12, 40PFL6606H/60, 40PFL6606K/02, 40PFL6606M/08, 40PFL6606T/12, 40PFL6626H/12, 40PFL6626K/02, 40PFL6626M/08, 40PFL6626T/12, 40PFL6636H/12, 40PFL6636K/02, 40PFL6636M/08, 40PFL6636T/12, 42HFL7406D/10, 42PDL7906H/12, 42PDL7906K/02, 42PDL7906M/08, 42PDL7906T/12, 42PFL7406H/12, 42PFL7406H/60, 42PFL7406T/12, 42PFL7406K/02, 42PFL7406M/08, 42PFL7456H/12, 42PFL7456K/02, 42PFL7456M/08, 42PFL7486H/12, 42PFL7486K/02, 42PFL7486M/08, 42PFL7606H/12, 42PFL7606H/60, 42PFL7606K/02, 42PFL7606M/08, 42PFL7606T/12, 42PFL7656H/12, 42PFL7656K/02, 42PFL7656M/08, 42PFL7656T/12, 42PFL7666H/12, 42PFL7666H/60, 42PFL7666K/02, 42PFL7666T/12, 42PFL7676H/12, 42PFL7676K/02, 42PFL7676T/12, 42PFL7696H/12, 42PFL7696K/02, 42PFL7696M/08, 42PFL7696T/12, 46HFL5573D/10, 46PFL5806K/02, 46PFL6606H/12, 46PFL6606H/60, 46PFL6606K/02, 46PFL6606M/08, 46PFL6606T/12, 46PFL6626H/12, 46PFL6626K/02, 46PFL6626T/12, 46PFL6806H/12, 46PFL6806H/60, 46PFL6806K/02, 46PFL6806T/12, 47PFL7456H/12, 47PFL7456K/02, 47PFL7606H/12, 47PFL7606H/60, 47PFL7606K/02, 47PFL7606M/08, 47PFL7606T/12, 47PFL7656H/12, 47PFL7656K/02, 47PFL7656M/08, 47PFL7656T/12, 47PFL7666H/12, 47PFL7666K/02, 47PFL7666T/12, 47PFL7696H/12, 47PFL7696K/02, 47PFL7696M/08, 47PFL7696T/12, 55HFL5573D/10, 55PFL6606H/12, 55PFL6606H/60, 55PFL6606K/02, 55PFL6606M/08, 55PFL6606T/12, 55PFL7606H/12, 55PFL7606K/02, 55PFL7606T/12, 55PFL7606T/60.

 

 DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   PSU ------------------>    PLDK-P011A Power supply

 Revision after repair of the backlight. Information from the master.
Decrease the backlight current from 380 mA mA to 270 mA. Removed two 12 Ohm resistors in each channel R455, R455A and R468, R468A.

 

Additional MainBoard Repair
The appearance of MainBoard 313929714851 is shown in the figure below:

313929714851
The main features of the PHILIPS 55PFL6606K device:
Installed matrix (LED panel) LC550EUF-SDA1.
To power the backlight LEDs, a converter combined with a power supply is used, controlled by an OZ9902GN SOP24 PWM controller. The keys of the AOD450 type are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the PHILIPS 55PFL6606K TV is carried out by the PLDK-P011A power module, or its analogs using FA5591 (PFC), L6599, LNK362 (Stb) microcircuits and 11N60 (PFC), STK0160 power switches.
MainBoard - the main board (motherboard) is a module 313929714851, using PNX85537 29F4C08ABADA TPA3120D2 chips and others.
The TH2603 tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG Display
Model: LC550EUF-SDA1
Type: a-Si TFT-LCD, Panel
Diagonal size: 55 inch
Resolution: 1920x1080, FHD
Display Mode: S-IPS, Normally Black, Transmissive

Active Area: 1209.6x680.4 mm
Surface: Antiglare (Haze 10%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 1600: 1
Display Colors: 16.7M / 1.06B (8-bit / 8-bit + FRC), CIE1931 72%
Response Time: 5 (G to G); 8 (MPRT)
Frequency: 120Hz
Lamp Type: WLED Without Driver
Signal Interface: LVDS (4 ch, 8/10-bit), 92 pins
Voltage: 12.0V

 

 PHILIPS 55PFL6606K LCD TV 55 "(140 cm) 16: 9. The required brightness of 400 cd / m2 is provided by LED backlighting. This model uses edge LED backlighting. The design and technical capabilities of the TV provide viewing of broadcasts and movies in high quality HD at a resolution of 1920x1080 pixels in graphic resolution at 1080p (Full HD). The 55PFL6606K TV is equipped with SMART software and the ability to work on the Internet. The connection to the network can be carried out via Wi-Fi wireless connection. The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG. Speaker power 28 W (2x14 W) is provided by two speakers. Uses NICAM stereo processing system and Sound Surround function. External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), audio x2, component, SCART, RGB, VGA, HDMI x3, USB, Ethernet (RJ-45). A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used, this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080. The digital tuner is capable of receiving TV channels in the DVB-T, DVB-C, DVB-S2 standards. The power consumed when operating from the mains is 66 W. Dimensions: with stand 1286x820x295 mm, without stand 1286x756x40 mm. TV weight: with stand: 30 kg, without stand: 26 kg. Attention! The panel of the PHILIPS 55PFL6606K LED TV is an expensive and unreliable element. 

Avoid any impacts on the glass and pressure on the screen surface to avoid damage to the LED panel! It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable

REPAIRING / SERVICING TV PHILIPS 55PUS6262

Technical description and composition of the PHILIPS 55PUS6262 TV, panel type and modules used. The composition of the modules.
PHILIPS LED
Model: 55PUS6262
Chassis / Version: TPM17.7E
Panel: TPT550U2-D072.L
LED driver (backlight): integrated into PSU
PWM LED driver: SSC9522S, TPV101AD
Power Supply (PSU): 715G8672-P03-000-002H
PWM Power: LD7591T (PFC), SSC3S121A
MOSFET Power: TK31A60W, TK11A65D
MainBoard: 715G8709-M01-B00-005K
IC MainBoard: MT5802VGEJ, M24128-BRMN6TP, THGBMDG5D1LBAIT
Tuner: TDSY-G480D & TDQS-A701F
Specifications 55PUS6262
PHILIPS 55PUS6262
General recommendations for TV LCD LED repair
Possible malfunctions
- PHILIPS 55PUS6262 does not turn on, does not respond to buttons and the remote control, indicators on the front panel do not light or flash.
In some of these cases, the fault is detected in the 715G8672-P03-000-002H power module. Its output voltages should be measured and, in their absence, the serviceability of the power switches (TK31A60W, TK11A65D) and rectifier diodes in the converters should be checked for possible breakdown.
In case of breakdowns of semiconductors in the secondary circuits of any converter, as a rule, it can operate in an emergency mode of short circuit without output voltages, and with a short circuit in the elements of the primary circuit, the mains fuse most often breaks off immediately and, less often, the current sensor in the source of the key.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of a PWM controller, in frequency setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) LD7591T (PFC), SSC3S121A are usually checked by replacing them with new ones, or knowingly working.

- There is no image, the screen is black, there is sound, when the screen is illuminated outside, you can sometimes see barely noticeable outlines of the image.
The most likely in these cases is a malfunction of the LED backlight. Usually the cause of the malfunction is in the breakage of the LEDs, or in the connectors of the LED strips, but sometimes the LED driver is also faulty.
It should be remembered that it is not possible to determine an open circuit in the LED lines without disassembling the panels using a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required. Then you need to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow opening the LED in the forward direction or dual LEds are used, then the PN transition of the emergency zener diode can indirectly serve as an indicator of serviceability. In the event of a malfunction of the LED-a, the PN junction of the Zener diode will either be cut off, or broken through in the K / Z.

 If PHILIPS 55PUS6262 has no picture, but there is sound, often the TPT550U2-D072.L display backlight simply does not work. Moreover, in LED TVs, the LEDs inside the panel usually fail, less often the LED driver. In such cases, you can see a barely noticeable image with a successful hit of external light on the screen. Replacing the LEDs requires disassembling the LCD panel TPT550U2-D072.L - a process that requires experience and qualifications from the master. 

I do not recommend doing such work on your own to the owners of TVs and craftsmen who do not have experience in repairing LCD panels !!!!!!!!!!!!!!!!

If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and in an open TV you can see the light through the holes in the panel case. In this case, the panel may also be faulty - damage to strips, loops, for example, as a result of moisture ingress after unsuccessful washing of the screen, the T-CON (Timing Controller) board may be faulty. But the main board MainBoard 715G8709-M01-B00-005K often turns out to be faulty; a software failure is also possible.

 Then, first of all, you need to check the panel supply voltage, the fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom. If these measurements are within the normal range, it is necessary to use an oscilloscope to trace the passage of LVDS signals from MainBoard 715G8709-M01-B00-005K, as well as synchronizing signals to loops with drivers. Flooded or unsuccessfully washed screens of LED TVs can be restored, in about half of the cases, usually if significant damage has not formed in the loops and panel strips.

- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals the standby mode.
Repair or diagnostics of the 715G8709-M01-B00-005K motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Repair of the board and replacement of microcircuits MT5802VGEJ, M24128-BRMN6TP, THGBMDG5D1LBAIT are carried out with the necessary equipment and the corresponding element base. Malfunctions associated with the use of BGA soldering technologies can be localized by the warm-up method.
If there is no tuning for terrestrial or cable TV channels, you should make sure that the software is correct, as well as that the supply voltages on the terminals of the TDSY-G480D & TDQS-A701F tuner match. It is also necessary to check with an oscilloscope the presence of pulses of data exchange between the tuner and the processor via the I2C bus.

Attention to users! Self-repair of the PHILIPS 55PUS6262 TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!

DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    PHILIPS 55PUS6262 Chassis TPM17.7E FOR MODELS:      43PUS6162/12, 43PUT6162/12, 43PUT6162/60, 43PUS6262/12, 43PUT6262/12, 49PUS6162/12, 49PUT6162/12, 49PUT6162/60, 49PUS6262/12, 49PUT6262/12, 50PUS6162/12, 50PUT6162/12, 50PUS6262/12, 50PUT6262/12, 55PUS6162/12, 55PUT6162/12, 55PUT6162/60, 55PUS6262/12, 55PUT6262/12, 65PUS6162/12, 65PUT6162/12, 65PUS6262/12, 65PUT6262/12.   

 

Revision after repair of the backlight. Information from the master.
Reduce the backlight current from 2.2 A to 1.5 A. In both channels at pin 6 of the ISET of the TPV101AD microcircuits, I removed two 1.2 Ohm resistors out of six installed. R8145, R8146 and R8147, R8148 on board 715G8672.

Additional MainBoard Repair
The appearance of the MainBoard 715G8709-M01-B00-005K is shown in the figure below:

715G8709-M01-B00-005K
The main features of the PHILIPS 55PUS6262 device:
Installed matrix (LED panel) TPT550U2-D072.L.
A converter combined with a power supply is used to power the backlight LEDs, it is controlled by the SSC9522S, TPV101AD PWM controller.

The formation of the necessary supply voltages for all nodes of the PHILIPS 55PUS6262 TV is carried out by the 715G8672-P03-000-002H power module, or its analogs using LD7591T (PFC), SSC3S121A microcircuits and power switches of the TK31A60W, TK11A65D type.
MainBoard - the main board (motherboard) is a 715G8709-M01-B00-005K module, using MT5802VGEJ, M24128-BRMN6TP, THGBMDG5D1LBAIT microcircuits and others.

Tuner TDSY-G480D & TDQS-A701F provides reception of television programs and tuning to channels.
PHILIPS 55PUS6262 TV with LCD TPT550U2-D072.L, diagonal size 54.6 "(139 cm) 16: 9. The required brightness of the screen 350 cd / m² is provided by LED backlighting. The LCD panel is backlit from Direct LEDs LED.
TPT550U2-D072.L sensor and MainBoard 715G8709-M01-B00-005K software are capable of realizing images in the highest UHD quality at 3840x2160 resolution in 4K UHD, HDR standard. Image processing is performed using modern High Dynamic Range (HDR) technology with an extended range of brightness gradations.
55PUS6262 TV is equipped with SMART software and the ability to work on the Internet. The connection to the network can be carried out via Wi-Fi wireless connection. Supported media file formats: MP3, WMA, MPEG4, HEVC (H.265), MKV, JPEG.
Speaker power 20 W (2x10 W) is provided by two speakers. Uses NICAM stereo processing system and Sound Surround function.

The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, HDMI x3, USB x2, Ethernet (RJ-45), Bluetooth, Wi-Fi 802.11n, WiDi, Miracast. A headphone output is provided. The digital tuner is capable of receiving television channels in the DVB-T, DVB-T2, DVB-C, DVB-S, DVB-S2 standards.

The TV uses a 715G8672-P02-000-002H power supply.
Dimensions: with stand 1244x775x262 mm, without stand 1244x731x78 mm.
TV weight: with stand: 16.3 kg, without stand: 15.4 kg.
Attention! Panel TPT550U2-D072.L LED-TV PHILIPS 55PUS6262 is an expensive and unreliable element.
Avoid any impacts on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.

REPAIRING / SERVICING TV PHILIPS 65PUS9809

 Technical description and composition of the PHILIPS 65PUS9809 TV, panel type and modules used. The composition of the modules.
PHILIPS LED
Model: 65PUS9809 / 60
Chassis / Version: QV14.1E LA
Panel: LTA650FJ01
LED backlight: SVS650A02-REV9_12LED
T-CON: 55EU22BMB36LV0.2
LED driver (backlight): SSL650_3D24A
Power Supply (PSU): FSP524-5F01
MainBoard: 715RLPCB0000000303A & 715RLPCB0000000252
IC MainBoard: 88PG867RB0, LNBH26LSPQR, TDA8296HN,
Tuner: PE531AN
Specifications 65PUS9809
PHILIPS 65PUS9809
General recommendations for TV LCD LED repair
Possible malfunctions
- PHILIPS 65PUS9809 does not turn on, does not respond to buttons and the remote control, indicators on the front panel do not light or flash.
In such cases, the FSP524-5F01 power supply usually fails. It is necessary to measure its secondary output voltages, and if they are absent, check the power switches and rectifier diodes in the converters for a short circuit.
In case of diode breakdowns in the secondary circuits, the converter can operate in an emergency mode of short circuit without output voltages, and with a short circuit in the power elements of the primary circuit, the mains fuse and / or the current sensor in the source of the key usually breaks off.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can disable it in key mode, or provoke an excess of the maximum current or voltage values. These can be circuits supplying the PWM controller, damper or frequency setting circuits, or OOS (negative feedback) elements in the stabilization circuit. PWM controllers (PWM), in the absence of external damage and short circuit between the terminals, are checked by replacing them with a known good one.
- There is no picture, but there is sound and all other functions work. Sometimes when you turn on the image appears and disappears for a second.
In these cases, the most likely problem is a malfunction of the LED backlight. The reason can be found in the malfunction of the LEDs, in the violation of the contact connections of the LED strips, or in the provision of their power supply (LED driver).
To check the health of the LED circuit, it is better to use a current source with a maximum voltage of 200V. We do not recommend using any voltage sources for this purpose. You can check each LED separately with a simple Chinese multimeter (powered by 9 volts) in the P-N transition test mode. If you connect the red probe of the multimeter to the anode of the LED, and the black one to its cathode, then the 3-volt LED will light up slightly, and in the opposite direction you can detect the transition of the emergency zener diode. The serviceability of the PN junction of the Zener diode indirectly indicates the serviceability of the LED-a
- The indicator on the front panel blinks, the TV does not turn on in operating mode, does not respond to the remote control.
Repair or diagnostics of the 715RLPCB0000000303A motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). If it is not possible to replace the MB (SSB) board, it is necessary to check the serviceability of its elements - 88PG867RB0, LNBH26LSPQR, TDA8296HN,. Defective components must be replaced.

If PHILIPS 65PUS9809 has no picture, but there is sound, often the LTA650FJ01 display backlight simply does not work. Moreover, in LED TVs, the LEDs inside the panel usually fail, less often the LED driver.
In such cases, you can see a barely noticeable image when the external light hits the screen.
Replacing the LEDs requires disassembling the LTA650FJ01 LCD panel, a process that requires experience and qualifications from the technician. We do not recommend doing such work on your own to owners of TVs and craftsmen who do not have experience in repairing LCD panels

If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and in an open TV you can see light through the holes in the panel case.
In this case, the panel may also be faulty - damage to strips, loops, for example, as a result of moisture ingress after unsuccessful washing of the screen, the T-CON (Timing Controller) board may be faulty. But often the main board MainBoard 715RLPCB0000000303A turns out to be faulty, a software failure is also possible.
Then, first of all, you need to check the panel supply voltage, fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.

If these measurements are within the normal range, an oscilloscope must track the passage of LVDS signals from MainBoard 715RLPCB0000000303A, as well as synchronizing signals to loops with drivers.
Flooded or unsuccessfully washed screens of LED TVs can be restored, in about half of the cases, usually if significant damage has not formed in the loops and panel strips.

Before changing the tuner PE531AN, if it is not possible to tune to television channels, you should make sure that there are supply voltages, which must be measured at the corresponding terminals of the tuner and check the software for correctness. The pulses of data exchange between the tuner and the processor can be monitored with an oscilloscope.

I REMIND: Owners of the 65PUS9809 TV are advised to contact only qualified specialists with the necessary experience for repair! Attempts to repair yourself without the appropriate knowledge and skills can lead to irreversible negative consequences!

 

DOWNLOAD SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    PHILIPS 65PUS9809 Chassis QV14.1E LA  FOR MODELS    48PFS8109/12, 48PFS8109/60, 48PFS8159/12, 48PFS8159/60, 48PFS8209/12, 48PFS8209/60, 49PUK7909/12 , 49PUS7909/12, 49PUS7909/60, 55PUS7909/12, 55PUS7909/60, 55PFS8109/12, 55PFS8109/60, 55PFS8159/12, 55PFS8159/60, 55PFS8209/12, 55PFS8209/60, 55PUS8809/12, 55PUS8809/60, 55PUS8909C/12 , 55PUS9109/12, 55PUS9109/60, 65PUS9109/12, 65PUS9109/60, 65PUS9809/12, 65PUS9809/60

 

 The appearance of the MainBoard 715RLPCB0000000303A is shown in the figure below:
715RLPCB0000000303A
The main features of the PHILIPS 65PUS9809 device:

Installed matrix (LED-panel) LTA650FJ01.
Matrix control uses Timing Controller (T-CON) 55EU22BMB36LV0.2.
The LED driver SSL650_3D24A is used to power the backlight LEDs.
The formation of the necessary supply voltages for all nodes of the PHILIPS 65PUS9809 TV is carried out by the FSP524-5F01 power module, or its analogs.
MainBoard - the main board (motherboard) is a 715RLPCB0000000303A module, using the 88PG867RB0, LNBH26LSPQR, TDA8296HN microcircuits, and others.
Tuner PE531AN provides reception of TV programs and tuning to channels.
PHILIPS 65PUS9809 TV with LCD LTA650FJ01, diagonal 65 "(165 cm) in 16: 9 format. The required brightness of the screen of 500 cd / m² is provided by LED backlighting. The display technology of the model is implemented with LED backlighting.
There is support for 3D images with active (shutter) separation technology of the right and left channels.
The LTA650FJ01 sensor and MainBoard 715RLPCB0000000303A software are capable of delivering the highest UHD image quality at 3840x2160 4K UHD resolution.

TV model 65PUS9809 has built-in SMART software and Android operating system installed. The connection to the network can be carried out via Wi-Fi wireless connection. The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and formation of a digital signal occurs in the 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 2160p standards. Supported media file formats: MP3, WMA, MPEG4, DivX, MKV, JPEG.
Speaker power 80 W (2x15 + 50 W) is provided by 3 speakers. Uses NICAM stereo processing system and Sound Surround function.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), audio x2, component, SCART, RGB, HDMI x4, USB x3, Ethernet (RJ-45), Wi-Fi 802.11n, Miracast ... A headphone output is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector on the TV case is used; this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024, 1360x768, 1920x1080, 3840x2160. The digital tuner is capable of receiving television channels in the DVB-T, DVB-T2, DVB-C, DVB-S, DVB-S2 standards.
The TV uses an FSP524-5F01 power supply.
Dimensions: with stand 1510x904x271 mm, without stand 1495x839x58 mm.
TV weight: with stand: 35.7 kg, without stand: 35 kg.
Attention! The LTA650FJ01 panel of the PHILIPS 65PUS9809 LED TV is an expensive and unreliable element.
Avoid any impacts on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.