LG 47LB5600, LG 47LB5600SB – 3D LCD TV - CHASSIS ADJUSTMENTS SERVICE, SOFTWARE UPDATE - EDID DATA - WHITE BALANCE ADJUSTMENT.

North-Latin America, Europe-Africa, Asia-Oceania.

Applied all LED TV with LJ43B, chassis.

(1) The adjustment is according to the order which is designated and which must be followed, according to the plan with all Unit: Product Specification Standard.
(2) Power adjustment: Free Voltage.
(3) Magnetic Field Condition: Nil.
(4) Input signal Unit: Product Specification Standard.
(5) Reserve after operation: Above 5 Minutes (Heat Run).
Temperature: at 25 ºC±5 ºC
Relative humidity: 65 ± 10%
Input voltage: 100~220V AC 50/60Hz
(6) Adjustment equipments : Color Analyzer (CA-210 or CA-110), Service remote controller.
(7) Push The “IN STOP KEY”  of Service remote controller – For memory initialization.

(Service or Factory) remote control is entirely different from your customer remote control.  It has some special buttons and functions. The main is "IN START" and "IN STOP" keys.  All LG sets need to have this remote control for service adjustment. One of it is enough to adjust all the models of LG TV sets. You can buy it either from the service department of LG, or by any online electronics spare part shop.  Without this remote control no adjustment to LG sets can be done.). {Factory Remote Control - MKJ 39170828.}

Case1 : Software version up.
1) After downloading S-W by USB , TV set will reboot automatically.
2) Push “In-stop” key.
3) Push “Power on” key.
4) Function inspection.
5) After function inspection, Push the “In-stop” key.
Case2 : Function check at the assembly line.
1) When TV set is entering on the assembly line, Push “In-stop” key at first.
2) Push “Power on” key for turning it on.
=> If you push “Power on” key, TV set will recover channel information by itself.
3).After function inspection, Push “In-stop” key.

Main PCB check process.
* APC – After Manual-Insert, executing APC
* Boot file Download.
(1) Execute ISP program “Mstar ISP Utility” and then click “Config” tab.
(2) Set as below, and then click “Auto Detect” and check “OK” message.
If “Error” is displayed, Check connection between computer, jig, and set.
(3) Click “Read” tab, and then load download file (XXXX.bin) by clicking “Read”.

(4) Click “Connect” tab. If “Can’t ” is displayed, Check connection between computer, jig, and set.

(5) Click “Auto” tab and set as below.
(6) Click “Run”.
(7) After downloading, check “OK” message.

USB DOWNLOAD(*.epk file download).
(1) Put the USB Stick to the USB socket.
(2) Automatically detecting update file in USB Stick.
- If your downloaded program version in USB Stick is Low, it didn't work. But your downloaded version is High, USB data is automatically detecting.
(3) Show the message "Copying files from memory".

(4) Updating is staring.

(5) After updating is complete, The TV will restart automatically.
(6) If TV turns on, check your updated version and Tool option.
* If downloading version is higher than your TV having, TV can lose all channel data. In this case, you have to channel recover. If all channel data is cleared, you didn't have a DTV-ATV test on production line.

After downloading, have to adjust Tool Option again.
(1) Push "IN-START" key in service remote controller.
(2) Select "Tool Option 1" and Push "OK" button.
(3) Punch in the number. (Each model has their number.)
(4) Completed selecting Tool option.

RS-232C Connection Method.
Connection: PCBA (USB Port) -> USB to Serial Adapter (UC-232A) -> RS-232C cable -> PC(RS-232C port).
* Product name of USB to Serial Adapter is UC-232A.

 Caution: LJ43* chassis support only UC-232A driver. (only use this one.).

Total Assembly line process - Adjustment. Preparation.
* W-B Equipment condition
CA210 : CH14, Test signal : Inner pattern (80IRE) – in case of LED back light.
* Above 5 minutes H-run in the inner pattern. (“power on” key of adjust remote control)
► The spec of color temperature and coordinate.

► CA210 : CH 14, Test signal : Inner pattern (80IRE)
- Standard color coordinate and temperature using CA-1000 (by H-R time)
* L14 LGD, INX Module
March to December & Global
Normal line (LB5500, LB5600)

Connecting picture of the measuring instrument (On Automatic control)
Inside PATTERN is used when W-B is controlled. Connect to auto controller or push Adjustment R-C POWER-ON -> Enter the mode of White-Balance, the pattern will come out.

Auto-control interface and directions.
(1) Adjust in the place where the influx of light like floodlight around is blocked. (Illumination is less than 10ux).
(2) Adhere closely the Color Analyzer ( CA210 ) to the module less than 10cm distance, keep it with the surface of the Module and Color Analyzer’s Prove vertically.(80~100°).
(3) Aging time.
- After aging start, keep the power on (no suspension of power supply) and heat-run over 5 minutes.
- Using ‘no signal’ or ‘full white pattern’ or the others, check the back light on.
* Auto adjustment Map(RS-232C)
RS-232C COMMAND
[ CMD ID DATA ]
Wb 00 00 White Balance Start
Wb 00 ff White Balance End.

Manual W-B process using adjusts Remote control.(TBD)

* Color analyzer(CA100+, CA210) should be used in the calibrated ch by CS-1000
* Operate the zero-calibration of the CA100+ or CA-210, then stick sensor to the module when adjusting.
*After enter Service Mode by pushing “ADJ” key,

* Enter White Balance by pushing “►” key at “8. White Balance”.

* For manual adjustment, it is also possible by the following sequence.
(1) Set TV in Adj. mode using POWER ON
(2) Zero Calibrate the probe of Color Analyzer, then place it on the center of LCD module within 10cm of the surface
(3) Press ADJ key -> EZ adjust using adj. R/C -> 8. White Balance then press the cursor to the right (KEY►). When KEY(►) is pressed 206 Gray internal pattern will be displayed.
(4) Adjust Cool modes
(i). Fix the one of R-G-B gain to 192 (default data) and decrease the others
(If G gain is adjusted over 172 and R and B gain less than 192, increase G gain to 192 and increase R gain and B gain same amount of increasing G gain.)
(ii). If G gain is less than 172, Increase G gain by up to 172, and then increase R gain and G gain same amount of increasing G gain.
(iii). If R gain or B gain is over 255, Readjust G gain less than 172, Conform to R gain is 255 or B gain is 255.
(5) Adjust two modes (Medium - Warm) Fix the one of R/G/B gain to 192 (default data) and decrease the others.
(6) Adj. is completed, Exit adjust mode using “EXIT” key on Remote controller.
*  If internal pattern is not available, use RF input. In EZ Adj. menu
8. White Balance, you can select one of 2 Test-pattern: ON, OFF. Default is inner (ON). By selecting OFF, you can adjust using RF signal in 206 Gray pattern.

CASE Cool
First adjust the coordinate far away from the target value(x, y).
(1) x, y > target
i) Decrease the R, G.
(2) x, y < target
i) First decrease the B gain,
ii) Decrease the one of the others.
(3) x > target , y< target
i) First decrease B, so make y a little more than the target.
ii) Adjust x value by decreasing the R
(4) x < target , y >target
i) First decrease B, so make x a little more than the target.
ii) Adjust x value by decreasing the G
How to adjust
(1) If G gain is adjusted over 172 and R gain and B gain less
than 192 , Adjust is O.K.
(2) If G gain is less than 172 , increase G gain by up to 172, and then increase R gain and B gain same amount of increasing G gain.
(3) If R gain or B gain is over 255 , Readjust G gain less than 172, Conform to R gain is 255 or B gain is 255.
CASE Medium - Warm
First adjust the coordinate far away from the target value(x, y).
(1) x, y > target
i) Decrease the R, G.
(2) x, y < target
i) First decrease the B gain,
ii) Decrease the one of the others.
(3) x > target , y< target
i) First decrease B, so make y a little more than the target.
ii) Adjust x value by decreasing the R
(4) x < target , y >target
i) First decrease B, so make x a little more than the target.
ii) Adjust x value by decreasing the G
*  After You finish all adjustments, Press “In-start” button and compare Tool option and Area option value with its BOM, if it is correctly same then unplug the AC cable. If it is not same, then correct it same with BOM and unplug AC cable. For correct it to the model’s module from factory JIG model.
*  Push the “IN STOP KEY” after completing the function inspection.

DPM operation confirmation.
(Only Apply for MNT Model)
Check if Power LED Color and Power Consumption operate as standard.
* Set Input to RGB and connect D-sub cable to set
* Measurement Condition: (100~240V@ 50/60Hz)
* Confirm DPM operation at the state of screen without Signal.

DDC EDID Write (HDMI 256Byte)
* Connect HDMI Signal Cable to HDMI Jack.
* Write EDID DATA to EEPROM(24C02) by using DDC2B protocol.
* Check whether written EDID data is correct or not.
* For SVC Ass’y, EDID have to be downloaded.

EDID DATA.
1) All Data : HEXA Value
2) Changeable Data :
*: Serial No : Controlled - Data:01
**: Month : Controlled - Data:00
***:Year : Controlled
****:Check sum
- Auto Download
* After enter Service Mode by pushing “ADJ” key,
* Enter EDID D-L mode.
* Enter “START” by pushing “OK” key.

Caution:
* Use the proper signal cable for EDID Download.
- Analog EDID : Pin3 exists
- Digital EDID : Pin3 exists
Caution:
- Never connect HDMI & D-sub Cable at the same time.
- Use the proper cables below for EDID Writing.
- Download HDMI1, HDMI2 separately because HDMI1 is different from HDMI2.

Outgoing condition Configuration
* When pressing IN-STOP key by SVC remocon, Red LED are blinked alternatively. And then automatically turn off.  (Must not AC power OFF during blinking)
 GND & Hi-pot test
GND & HI-POT auto-check preparation
(1) Check the POWER CABLE and SIGNAL CABE insertion condition
GND & HI-POT auto-check
(1) Pallet moves in the station. (POWER CORD - AV CORD is tightly inserted)
(2) Connect the AV JACK Tester.
(3) Controller (GWS103-4) on.
(4) GND Test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, execute next process (Hi-pot test).
(Remove A/V CORD from A-V JACK BOX)
(5) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, GOOD Lamp on and move to next process automatically.
Checkpoint
(1) Test voltage
① 3 Poles
- GND: 1.5KV-min at 100mA
- SIGNAL: 3KV-min at 100mA
② 2 Poles
- SIGNAL: 3KV-min at 100mA
(2) TEST time: 1 second
(3) TEST POINT
① 3 Poles
- GND Test = POWER CORD GND and SIGNAL CABLE GND.
- Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL.
② 2 Poles
- Hi-pot Test = Accessible Metal and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms
5. Local Dimming Function Check
(Not require)
Step1) Turn on TV.
Step2) Press “P-only” key, enter to power only mode and escape the “P-only” Mode by pressing “Exit” key
Step3) Press “Tilt” key, entrance to Local Dimming mode.
Step4) At the Local Dimming mode, module Edge Backlight moving Top to bottom Back light of module moving
Step5) confirm the Local Dimming mode
Step6) Press “Exit” key.

Outgoing condition Configuration
* When pressing IN-STOP key by SVC remocon, Red LED are blinked alternatively. And then automatically turn off.  (Must not AC power OFF during blinking)
GND & Hi-pot test
GND & HI-POT auto-check preparation
(1) Check the POWER CABLE and SIGNAL CABE insertion condition
GND & HI-POT auto-check
(1) Pallet moves in the station. (POWER CORD-AV CORD is tightly inserted)
(2) Connect the AV JACK Tester.
(3) Controller (GWS103-4) on.
(4) GND Test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, execute next process (Hi-pot test).
(Remove A/V CORD from A/V JACK BOX)
(5) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, GOOD Lamp on and move to next process automatically.
Checkpoint
(1) Test voltage
① 3 Poles
- GND: 1.5KV-min at 100mA
- SIGNAL: 3KV-min at 100mA
② 2 Poles
- SIGNAL: 3KV-min at 100mA
(2) TEST time: 1 second
(3) TEST POINT
① 3 Poles
- GND Test = POWER CORD GND and SIGNAL CABLE GND.
- Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL.
② 2 Poles
- Hi-pot Test = Accessible Metal and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms
5. Local Dimming Function Check (Not require)
Step1) Turn on TV.
Step2) Press “P-only” key, enter to power only mode and escape the “P-only” Mode by pressing “Exit” key
Step3) Press “Tilt” key, entrance to Local Dimming mode.
Step4) At the Local Dimming mode, module Edge Backlight moving Top to bottom Back light of module moving
Step5) confirm the Local Dimming mode
Step6) Press “Exit” key

3D Function Test (Only LB620)
(Pattern Generator MSHG-600, MSPG-6100 [SUPPORT HDMI1.4])
* HDMI mode NO. 872 , pattern No.83
1) Please input 3D test pattern like below (HDMI mode NO. 872 , pattern No.83)

2) When 3D OSD appear automatically , then select OK button.

3) Don’t wear a 3D Glasses, Check the picture like below

 

LG FLATRON M3201C COLOR MONITORS HOW TO ENTER THE, SERVICE MODE, SERVICE ADJUSTMENTS AND CIRCUIT DESCRIPTION

 

LG M3201C-BAFE.A**LLC, M3701C M3701C-BAFE.A**LLC, M4201C M4201C-BAFE.A**LLC

There are some special components used in LCD monitor that are important for safety. These parts are marked on the schematic diagram and the replacement parts list. It is essential that these critical parts should be replaced with the manufacturer’s specified parts.

If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may damage the panel.)

Do not apply AC power to this instrument and/or any of its electrical assemblies unless all solid-state device heat sinks are correctly installed.

Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device.)

Block diagram

Description of block diagram

AV input selection circuit
1) AV(Video) INPUT SELECT : This section is composed of Video switching IC (CXA2040AQ_IC513) and peripheral devices.
Video switching IC(CXA2040AQ_U201) selects CVBS video or S-video and the signal is sent to Scaler IC(IC101).
2) AV Sync Detection : This section is composed of Sync Separator IC(LA7217M_IC509) and peripheral devices.
Av input selection block sends selected signal to Sync detection block then sync detection block identifies if AV signal is present or not. And this block sends this information to Scaler(Micom).
2. Component INPUT
Component input signal was connected from input jack to scaler directly.
3. RGB INPUT OUTPUT CIRCUIT
1) D-SUB RGB INPUT OUTPUT : This section is composed of RGB Input Output Jack(P503), Schmitt trigger inverter IC(IC507), OP-AMPs(IC510, IC511, IC512) and peripheral devices.
RGB input signal path was connected from input jack to Scaler directly. But scaler receives RGB Sync signal via schmitt trigger inverter IC.
RGB output signal was made by OP-Amp ICs. And this sends output signal to RGB output jack.
4. HDMI INPUT CIRCUIT
This section is composed of TMDS receiver IC(ANX9021_IC508), ESD protection diode(CM2021_D526, D527) and peripheral devices.
TMDS receiver IC receives TMDS signal via ESD protection diode. And it convert HDMI signal to digital RGB signal. And it sends to scaler.
5. RS-232C INPUT OUTPUT CIRCUIT
This section is composed of RS-232C IC(ICL3232C_IC503), and peripheral devices.
Computer and scalar(micom) was connected by RS-232C IC.

7. AUDIO DECODER
This section is composed of MSP4440K(IC804), NTP2000(IC805) and peripheral devices.
MSP4440K is processing audio signal(AV, Component, PC Audio and IIS).
Digital audio processor IC receives IIS signal from MSP4440K, and converts IIS to PWM signal.
This IC's output signal is sent to Audio Amplifier IC(TAS5122_IC802).
8. AUDIO AMPLIFIER
This section is composed of TAS5122(IC802) and peripheral devices.
Audio Amplifier's function is amplification of sound signal received from Audio Decoder.
Input Audio signal is amplified according to the DC Volume control curve.

Adjustment

All adjustment are thoroughly checked and corrected when the monitor leaves the factory, but sometimes several minor adjustments may be required.
Adjustment should be following procedure and after warming up for a minimum of 30 minutes.
Alignment appliances and tools.
- IBM compatible PC
- Programmable Signal Generator. (eg. VG-819 made by Astrodesign Co.)
- Oscilloscope.
- White Balance Meter. (CA-110)

DDC Data Write Procedure-Analog
1) Use this procedure only when there is some problem on Analog EDID data.
2) Run alignment program for M3201C on the IBM compatible PC.
3) Select EEPROM →Analog EDID write command and Enter.
4) This will write the Analog EDID data to EEPROM.
2. DDC Data Write Procedure-Digital
1) Use this procedure only when there is some problem on Digital EDID data.
2) Run alignment program for M3201C on the IBM compatible PC.
3) Select EEPROM →Digital EDID write command and Enter.
4) This will write the Digital EDID data to EEPROM.

Cable Connection

Windows EDID V1.0 User Manual

Service OSD

The OSD is displayed when 'ADJ Key is pressed on ADJUST REMOCON in Service Menu.
Description of operation
- LW61A : Model chassis
- Cortez Version : Software Version
- Panel Used : Use time the Panel
- Area Option
- OPTION 1
- OPTION 2 Not Use
- OPTION 3
- OPTION 4
- System Control 3 : Debug Print Set up
- Power-off History : History Memory of Abnormal
- Fan Control : Nothing

The OSD is displayed when 'OK' Key is pressed on Tool Option 1 in Service Menu.
Tool Option 1
- MODULE : Inch, make factory Module change
- Cortez Version : Fix SW (Not change)
The OSD is displayed when 'OK' Key is pressed on Tool Option 2 in Service Menu.
Tool Option 2
- Tuner Num. : Fix No Tuner (Not Adjust)
- EYE : Fix Intelligent Eye Not Action (Not Adjust)
- INDEX : Nothing
- RGB ONLY : Select the RGB Only Model
- Full : Set the ARC Full
- HDMI Type : Fix HDMI : 1-HDMI (Not Adjust)

The OSD is displayed when 'OK' Key is pressed on System Control 1 in Service Menu.
System Control 1
- SpritZoom / Save sprilt Zoom : Nothing
- 2 Hour Off opt. : If no key input is made for 2 hours, Sets the Power off
- OSD Rotate : Nothing
- Favorite Key / Exit Key / Navigation Key : Remot conntroller Key (Not adjust)

The OSD is displayed when 'OK' Key is pressed on System Control 2 in Service Menu.
System Control 2
- System : Sets the Color system mode
- OverScan : Sets the Video Signal OverScan
- RS-232 Host : Nothing
- Baud Rate : Sets the RS-232 communication speed
- RS-232 Select : Select the RS-232 communication
- AGC-L : Nothing
- Audio Delay : Sets the Audio Delay(ms)

The OSD is displayed when 'OK' Key is pressed on BlkLine Detector in Service Menu.
BlkLine Detector
- BlkLine Min : Sets the BlkLine Min
- BlkLine Max : Sets the BlkLine Max
- Full Time : Sets the Full time
- Original Time : Sets the Original time

The OSD is displayed when 'OK' Key is pressed on Panel Control in Service Menu.
Panel Control
- AV / PC : Nothing
- ISM : Nothing
- Gamma : Nothing
- Pwr.Save : Nothing
- Bright : Nothing
- Pnl.Lock : Nothing
- OrbitPixel : Sets the Pixel
- Orbit Step : Sets the Step
- Orbit Time : Sets the Time
- Inv.Time : Sets the inversion time
- GUC : Nothing
- AMSE : Nothing
- Module Download : Nothing
- Reset Panel Used Time : Reset the Panel Use Time

Hotel option

Hotel Option
- Station Menu Display : Nothing
- Program Change : Nothing
- Input Source Change : Enables (Yes)/Disables (No) input source change.
- Fixed Volume : Sets Yes (Fixed)/No (Variable) about whether the sound volume will be fixed to the current value or not.
- Max Volume : Sets the maximum volume within the range of 0 ~ 100 when volume control is allowed.
- OSD Display : Nothing
- Remote Control Operation : Activates (Yes)/Deactivates (No) remote control operation.
- Local Key Operation : Activates (Yes)/Deactivates (No) local key operation.
- Power On Operation : Sets Yes (Operation)/No (No operation) about whether the channel and the volume level that will be displayed when the power is turned on.
- Set ID Lock : Sets the Set ID function
- Set ID : Attach ID
- Auto Off Operation : Sets whether the automatic turn-off function will be activated or not with On (Activated) or Off (Deactivated) option, which turns off the TV if no key input is made for 2 hours, using Auto Off operation and On Time on the Time menu.
- Hotel Mode Operation : Sets whether all Hotel functions will be enabled
(Yes) or disabled (No).

Auto color balance and white balance

Auto Color Balance (Hex) : Adjust Color Balance

White Balance: Adjust White Balance

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.