Thursday 23 January 2020

REPAIR / SERVICING TV PHILIPS 32PFL3307H

Technical description and composition of the PHILIPS 32PFL3307H TV, type of panel and applicable modules. The composition of the modules.
PHILIPS LED
Model: 32PFL3307H / 60
Chassis / Version: TPM9.2E LA
Panel: T320XVN01.4 code 162 p / n: 996590001295
LED backlight: 320TA0E V0; 410mm 44 LED 12529D / 73.32T21.002-2-JS1
T-CON: T320XVN01.0 32T21-C06
LED driver (backlight): 4H + V3416.001 DARFON V341-001
PWM LED driver: DF3421
MOSFET LED driver: PA610AD
Power Supply (PSU): 715G5194-P02-W20-002S CSPJ07001 996590001297 // 715G5194-P02-W20-002H
PWM Power: LD7523GS, A6069H
MainBoard: 715G5155-M02-003-005K VerA // 715G5155-M01-003-005X ver: A
IC MainBoard: MT5366ZVGG, H5TQ1G63DFR-H9C, TMDS361BPAGR
Tuner: TDTK-G731D 996590001963
Control: Remote: 9965 900 00449, IR: 715G5251-R01-000-004I
Specifications 32PFL3307H
PHILIPS 32PFL3307H
General repair guidelines for TV LCD LED
Diagnostics and repair of PHILIPS 32PFL3307H / 60, as well as other electronic devices, it is recommended to start with an external examination of the external and internal elements. Sometimes, based on visible changes in the components of the device, it is possible to draw some conclusions and determine the direction of further troubleshooting even before the necessary measurements are taken. Experienced repairmen are often aware of the causes of the defect and possible consequences, for example, from ring cracks in the soldering of the leads of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external indirect signs.
In cases when the PHILIPS 32PFL3307H TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink, and there are no sounds and no signs of operability when turning on, the power supply module 715G5194-P02-W20 is most likely to be faulty -002S CSPJ07001 996590001297 or there is no processor power on the motherboard (a typical defect of some PHILIPS TVs). Diagnostics and repair of the common power supply should always begin with a check of the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors in switching power supplies (SMPS) fail for no reason that should be sought by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, or dried electrolytic capacitors or dangling primary resistors BP circuits involved in the stabilization process. In this case, all semiconductor elements of the strapping of the PWM controller chip are subject to verification, which it is desirable to verify by replacement.
If the PHILIPS 32PFL3307H does not have an image, but there is sound, the backlight LEDs on the T320XVN01.4 code 162 996590001295 or their power converter may malfunction. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
To check the health of the LEDs, as well as contact connections in the ruler circuit, the panel must be disassembled.
It is impossible to check the LED line for breaks without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts will be required, and ideally, a current source.
The motherboard 715G5155-M02-003-005K VerA is subject to verification if there is no reaction to the console and function buttons, the standby indicator blinks or lights up constantly. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
Before replacing the TDTK-G731D 996590001963 tuner, if there is no tuning for the channels, you must first check the power supply voltage at its terminals, including the power supply of varicaps (30-33V).
Owners of the 32PFL3307H TV are advised to contact qualified personnel with experience only for repair! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!


Service manual and schematic diagram 32PFL3307H/60 Chassis TPM9.2E LA

 32PFL3517H/12, 32PFL3507K/02, 32PFL3517K/02, 37PFL3507H/12, 37PFL3507K/02, 42PFL3507H/12, 42PFL3507K/02

 The appearance of MainBoard 715G5155-M02-003-005K is shown in the figure below:
715G5155-M02-003-005K
The appearance of the power supply
Main features of the PHILIPS 32PFL3307H device:
Installed matrix (LED-panel) T320XVN01.4 code 162 p / n: 996590001295.
The matrix control uses the Timing Controller (T-CON) T320XVN01.0.
The LED driver 4H + V3416.001 is used to power the backlight LEDs, it is controlled by the DF3421 PWM controller. As the power elements of the LED driver, keys of the type PA610AD are used.
The necessary supply voltages for all nodes of the PHILIPS 32PFL3307H TV are generated by the power module 715G5194-P02-W20-002S, or its analogs using microcircuits LD7523GS, A6069H.
MainBoard - the main board (motherboard) is a module 715G5155-M02-003-005K, using chips MT5366ZVGG, H5TQ1G63DFR-H9C, TMDS361BPAGR and others.
The TDTK-G731D 996590001963 tuner provides TV reception and channel tuning.