Wednesday 29 January 2020

REPAIR / SERVICING TV PHILIPS 40PFL6606H

Technical description and composition of the PHILIPS 40PFL6606H TV, type of panel and applicable modules. The composition of the modules.
PHILIPS LED
Model: 40PFL6606H / 60
Chassis / Version: Q552.2E LA
Panel: LK400D3LB43 code 329 p / n: 932228184682 (code 366)
LED backlight: GT0330-2, GT0330-4 - POSITIONING SLED 2011SSP40 36 4214 GD REV0
T-CON: CPWBX / RUNTK / DUNTK4593TP ZA
LED driver (backlight): HR-PSL40-2-Med PLDE-P007 2722 171 90318 LG
PWM LED driver: OZ9902GN
Power Supply (PSU): PLDE-P007A 3PAGC20023A-R HR-PSL40-2-Med 2722 171 90318
PWM Power: LNK362PG (7), LB599AD
MOSFET Power: KF5N50
MainBoard: 313929714851 // 313929711861 PL5.6
IC MainBoard: PNX85537 29F4C08ABADA TPA3120D2
Tuner: TH2603
Control: IR GWA7.820.694-6 (V1.1) (HT), 2422 549 90362
Specifications 40PFL6606H
PHILIPS 40PFL6606H
General repair guidelines for TV LCD LED
Repair of the PHILIPS 40PFL6606H / 60 TV is advisable to start with a careful external examination of both internal and external elements. Specific external damage to some elements can sometimes indicate further actions to determine the malfunction of the TV and localize the defect before the necessary measurements are taken. Carbonized paint on the upper layer of resistors, electrolytic capacitors of rectifier filters swollen after boiling, cracked soldering at the terminals of heating elements or transformers can often suggest the cause of the defect and possible consequences.
In the case when the 40PFL6606H does not turn on, does not respond to the remote control and the front panel buttons, does not blink bulbs and does not show any signs of operability, the HR-PSL40-2-Med PLDE-P007 2722 171 90318 power supply module is probably defective. its health in such cases, it is necessary to check the stabilizer (converter) of the processor power supply on the motherboard. It is advisable to start the troubleshooting of the power supply module by checking the condition of the electrolytic capacitors of the rectifier filters and the mains fuse . Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and KF5N50 transistors, which are often found in such a state of breakdown in such situations.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The PWM controller chip LNK362PG (7), LB599AD, OZ9902GN can also cause a breakdown of the power switch of the converter.
If the PHILIPS 40PFL6606H does not have an image, but there is sound and the TV is controlled by the remote control, there may be a malfunction in the backlight circuits of the LK400D3LB43 panel, code 329, 9322 281 84682 code 366. LEDs or a power converter - LED driver may be malfunctioning. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the LED driver, and check the LEDs, connecting obviously known good diagnostics.
A malfunction in the backlight circuits often occurs due to an open in the power circuit of the LED lines. It requires disassembling the panel and checking the LEDs themselves, the rations of their terminals, as well as the reliability of the connections in the connectors and rations of the terminals.
To check the LED lines for breaks without disassembling the panel, for example, a current source will help. It is impossible to open series-connected PN junctions with a simple multimeter, a voltage of the order of several tens of volts is required.
Repair of the motherboard PL5.6 313929711861 should begin with the diagnosis and verification of all linear stabilizers or power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM.
Often, the MB (SSB) card needs to be replaced in case of complex faults that are difficult to detect. When trying to repair, you should check its elements - PNX85537 29F4C08ABADA TPA3120D2 and replace failed chips with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by local heating of the chip.
In cases where there is no tuning to the local television channels, you should make sure that there is a varicap supply voltage (30-33V) and other supply voltages at the terminals of the tuner 3139 297 11911.
Attention to the owners! Attempts at self-repair of the PHILIPS 40PFL6606H TV are not recommended by the manufacturer and can lead to serious negative consequences!

 Service manual and schematic diagram 40PFL6606H/60 Chassis Q552.2E LA 

FOR MODELS: 32PFL6606H/12, 32PFL6606H/60, 32PFL6606K/02, 32PFL6606M/08, 32PFL6626H/12, 32PFL6626K/02, 32PFL6626M/08, 32PFL6636H/12, 32PFL6636K/02, 32PFL6636M/08, 32PFL7406H/12, 32PFL7406K/02, 32PFL7406M/08, 32PFL7476H/12, 32PFL7476K/02, 32PFL7486H/12, 32PFL7486K/02, 32PFL7486M/08, 32PFL7496H/12, 32PFL7496K/02, 37PFL6606H/12, 37PFL6606H/60, 37PFL6606K/02, 37PFL6606M/08 , 40PFL6606H/12, 40PFL6606H/60, 40PFL6606K/02, 40PFL6606M/08, 40PFL6626H/12, 40PFL6626K/02, 40PFL6626M/08, 40PFL6636H/12, 40PFL6636K/02, 40PFL6636M/08, 42PFL7406H/12, 42PFL7406K/02, 42PFL7406M/08, 42PFL7456H/12, 42PFL7456K/02, 42PFL7456M/08 , 42PFL7486H/12, 42PFL7486K/02, 42PFL7486M/08, 42PFL7606H/12, 42PFL7606K/02, 42PFL7606M/08, 42PFL7666H/12, 42PFL7666K/02, 42PFL7676H/12, 42PFL7676K/02, 42PFL7696H/12, 42PFL7696M/08, 46PFL6606H/12, 46PFL6606H/60, 46PFL6606K/02, 46PFL6606M/08, 46PFL6626H/12, 46PFL6626K/02, 47PFL7606H/12, 47PFL7606K/02, 47PFL7606M/08, 47PFL7666H/12, 47PFL7666K/02, 47PFL7696H/1, 47PFL7696K/02, 47PFL7696M/08, 55PFL6606H/12, 55PFL6606H/60, 55PFL6606K/02, 55PFL6606M/08


 The appearance of MainBoard 313929714851 is shown in the figure below:
Replacement 313912364954, 3139 123 64954, 313912364955, 3139 123 64955
313929714851
The appearance of the power supply
Main features of the PHILIPS 40PFL6606H device:
Installed matrix (LED-panel) LK400D3LB43 code 329 p / n: 932228184682 (code 366).
In matrix management, the CPWBX Timing Controller (T-CON) is used.
The LED driver HR-PSL40-2-Med is used to power the backlight LEDs, it is controlled by the OZ9902GN PWM controller.
The necessary supply voltages for all nodes of the PHILIPS 40PFL6606H TV are generated by the PLDE-P007A power supply module or its analogs using LNK362PG microcircuits (7), LB599AD and power switches of the KF5N50 type.
MainBoard - the main board (motherboard) is a module 313929714851, using chips PNX85537 29F4C08ABADA TPA3120D2 and others.
The TH2603 tuner provides TV reception and channel tuning.