Friday, 18 September 2020

REPAIRING / SERVICING TV PHILIPS 46PFL5527T

Technical description and composition of the PHILIPS 46PFL5527T TV, panel type and modules used. The composition of the modules.
PHILIPS LED
Model: 46PFL5527T / 60
Chassis / Version: Q552.4E LA
Panel: LTA460HW04
LED backlight: SLED 2012SGS46 7030L 64 REV1.0
LED driver (backlight): integrated into PSU
PWM LED driver: DDA009
Power Supply (PSU): DPS-130PP 2950298203
PWM Power: DDA010 (Standby), S101 (6), 1608B (PFC), 2QS02G, G1213
MainBoard: 65323V2 3139 123 65323v2-MB / 65333v2-SB
IC MainBoard: CPU: PNX85500, NAND Flash: H27U4G8F2D, SPI Flash: M25P05. SOUND: TAS5731PHP
Tuner: SUT-RE214Z
Specifications 46PFL5527T
PHILIPS 46PFL5527T
General recommendations for TV LCD LED repair
Possible manifestations of malfunctions
- PHILIPS 46PFL5527T TV does not turn on. There are no signs of operability. The indicators on the front panel do not light up or blink, the TV does not respond to the control buttons.
In such cases, you should start looking for a fault in the DPS-130PP power supply circuits. 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 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 power switches (MosFet) in switching sources is sometimes caused by malfunctions of other circuit elements, for example, in the circuits supplying the PWM controller, frequency setting or damper, as well as in the circuits of Negative Feedback (OOS) stabilization. PWM controllers (PWM) DDA010 (Standby), S101 (6), 1608B (PFC), 2QS02G, G1213, if they have no visible damage to the case and an outright short circuit between the terminals, are usually checked by replacing.
- There is no picture, there is sound, it reacts to the remote control, channels are switched. In some cases, the image appears when turned on and disappears immediately.
A malfunction is usually in these cases most likely in the backlight units of the display matrix. Most often, the reason for this is a break in the LEDs, or poor contact in the connectors of the brackets, less often the LED driver may be faulty.
To identify an open circuit in the LED lines without disassembling the panel, a current source is required. It is impossible to open the junctions connected in series with a simple multimeter; a voltage of several tens of volts is required.
- 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 65323V2 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). If it is not possible to replace the MB (SSB) board, you need to check the health of its elements - CPU: PNX85500, NAND Flash: H27U4G8F2D, SPI Flash: M25P05. SOUND: TAS5731PHP. Defective components must be replaced.

 If PHILIPS 46PFL5527T has no picture, but there is sound, often the LTA460HW04 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 LTA460HW04 LCD panel, a process that requires experience and qualifications from the technician. We 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, light is visible through the holes in the panel case.
In this case, the panel may also be faulty - damage to the 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 65323V2 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 MainBoard 65323V2 with an oscilloscope, as well as synchronizing 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.


If there is no reception of TV channels, but the TV is working properly from external devices, first of all, you need to check the supply voltage of the SUT-RE214Z tuner and update the software. I2C communication pulses must be monitored with an oscilloscope.
Owners of the 46PFL5527T 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 46PFL5527T Chassis Q552.4E LA


DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Chassis Q552.4E LA FOR MODELS: 26PFL4007H/12, 26PFL4007K/12, 26PFL4007T/12, 32PFL4007H/12, 32PFL4007H/60, 32PFL4007K/12, 32PFL4007M/08, 32PFL4007T/12, 32PFL4007T/60, 32PFL4027H/12, 32PFL4027H/60, 32PFL4027K/12, 32PFL4027T/12, 32PFL4027T/60, 32PFL4037H/12, 32PFL4037H/60, 32PFL4037K/12, 32PFL4037T/12, 32PFL4037T/60, 32PFL4047T/12, 32PFL5007H/12, 32PFL5007H/60, 32PFL5007K/12, 32PFL5007M/08, 32PFL5007T/12, 32PFL5007T/60, 32PFL5507H/12, 32PFL5507H/60, 32PFL5507K/12, 32PFL5507M/08, 32PFL5507T/12, 32PFL5507T/60, 37PFL4007H/12, 37PFL4007K/12, 37PFL4007M/08, 37PFL4007T/12, 37PFL4007T/60, 40PFL5007H/12, 40PFL5007H/60, 40PFL5007K/12, 40PFL5007M/08, 40PFL5007T/12, 40PFL5007T/60, 40PFL5507H/12, 40PFL5507H/60, 40PFL5507K/12, 40PFL5507M/08, 40PFL5507T/12, 40PFL5507T/60, 40PFL5527H/12, 40PFL5527H/60, 40PFL5527K/12, 40PFL5527M/08, 40PFL5527T/12, 40PFL5527T/60, 40PFL5537H/12, 40PFL5537H/60, 40PFL5537K/12, 40PFL5537M/08, 40PFL5537T/12, 40PFL5537T/60, 42PFL4007H/12, 42PFL4007K/12, 42PFL4007M/08, 42PFL4007T/12, 42PFL4007T/60, 42PFL4047T/12, 42PFL4307H/12, 42PFL4307K/12, 42PFL4307T/12, 42PFL4317K/12, 46PFL5007H/12, 46PFL5007K/12, 46PFL5007M/08, 46PFL5007T/12, 46PFL5507H/12, 46PFL5507H/60, 46PFL5507K/12, 46PFL5507M/08, 46PFL5507T/12, 46PFL5507T/60, 46PFL5527H/12, 46PFL5527H/60, 46PFL5527K/12, 46PFL5527M/08, 46PFL5527T/12, 46PFL5527T/60, 46PFL5537H/12, 46PFL5537H/60, 46PFL5537K/12, 46PFL5537M/08, 46PFL5537T/12, 46PFL5537T/60, 47PFL4007H/12, 47PFL4007H/60, 47PFL4007K/12, 47PFL4007M/08, 47PFL4007T/12, 47PFL4007T/60, 47PFL4037T/12, 47PFL4047T/12, 47PFL4307H/12, 47PFL4307K/12, 47PFL4307T/12, 55PFL5507H/12, 55PFL5507H/60, 55PFL5507K/12, 55PFL5507M/08, 55PFL5507T/12, 55PFL5507T/60, 55PFL5527H/12, 55PFL5527K/12, 55PFL5527M/08, 55PFL5527T/12, 55PFL5537H/12, 55PFL5537K/12, 55PFL5537M/08, 55PFL5537T/12.


The appearance of MainBoard 65323V2 is shown in the figure below:
65323V2
65323V2 can be used in TVs:
PHILIPS 40PFL5537T/60 (Panel LTA400HV04), PHILIPS 42PFL4007T/60 (Panel LC420EUE (SE)(M2)).
External view of the power supply
The main features of the PHILIPS 46PFL5527T device:
The matrix (LED-panel) LTA460HW04 is installed.
To power the backlight LEDs, a converter combined with a power supply is used, controlled by a DDA009 PWM controller.
The formation of the necessary supply voltages for all nodes of the PHILIPS 46PFL5527T TV is carried out by the DPS-130PP power supply module, or its analogs using the DDA010 (Standby), S101 (6), 1608B (PFC), 2QS02G, G1213 microcircuits.
MainBoard - the main board (motherboard) is a 65323V2 module, using CPU chips: PNX85500, NAND Flash: H27U4G8F2D, SPI Flash: M25P05. SOUND: TAS5731PHP and others.
The SUT-RE214Z tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA460HW04-001
Type: a-Si TFT-LCD, Panel
Diagonal size: 46 inch
Resolution: 1920x1080, FHD
Display Mode: SPVA, Normally Black, Transmissive
Active Area: 1018.08x572.67 mm
Display Colors: 1.07B (10-bit)
Frequency: 120Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (4 ch, 10-bit)

 Updating software (firmware, firmware).Version: 000.105.000.000, zip file, 73.4 MB, published August 26, 2015.

Documentation:Quick start guide PDF file, 987.0 kB, published April 1, 2013Brochure Version: 6.1.12, PDF file, 555.8 kB, published July 19, 2019

User manual PDF file, 1.6 MB, published March 21, 2013

Files can be downloaded from the manufacturer's website for model 46PFL5527T / 60.


PHILIPS 46PFL5527T LCD TV 46 "(117 cm) in 16: 9 format. The required brightness of the screen of 400 cd / m² is provided by LED backlighting. Dynamic contrast ratio of 500,000: 1 is achieved by special control of LED operation. the model has LED backlighting.
There is support for 3D images with active (shutter) separation technology of the right and left channels. 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).
46PFL5527T 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 takes place in the 480i, 480p, 576i, 576p, 720p, 1080i, 1080p standards. Supported media file formats: MP3, WMA, MPEG4, MKV, JPEG.
Speaker power 28 W (2x14 W) is provided by two speakers. Uses the NICAM stereo signal processing system and the 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 x4, USB x3, Ethernet (RJ-45), Wi-Fi. 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 able to receive TV channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
The power consumed by the TV from the network in operating mode is 55 watts.
Dimensions: with stand 1065x677x260 mm, without stand 1065x635x35 mm.
TV weight: with stand: 19.9 kg, without stand: 16.4 kg.
Attention! The panel of the PHILIPS 46PFL5527T LED TV is an expensive and unreliable element.
Do not allow any impact 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.