Friday 24 January 2020

REPAIR / SERVICING TV PHILIPS 32PFL5332S

Technical description and composition of the PHILIPS 32PFL5332S TV, type of panel and applicable modules. The composition of the modules.
PHILIPS
Model: 32PFL5332S / 60
Chassis / Version: LC7.1E LA
Panel: T315XW02
T-CON: T315VX02 TX260XV02
Inverter (backlight): VIT71020.62-68 LOGAH REV.3
PWM Inverter: OZ964SN (20pin), LM324, LM339
MOSFET Inverter: P3004ND5G
Power Supply (PSU): PLCD190P3 24432
MainBoard: 3139_123_62611 WK647.3
IC MainBoard: CPU: M30300SAGP; DRAM: EDS1216AGTA; NAND Flash: M29W320ET70N; EEPROM: M24C64; SOUND: TDA8932T
Tuner: UV1318S / A
Specifications 32PFL5332
PHILIPS 32PFL5332S
General recommendations for repairing TV LCD
Repair PHILIPS 32PFL5332S / 60 is recommended to start with the diagnosis of the malfunction, which includes a careful inspection of the external and internal elements of the TV. 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. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a hint in the assumptions about the causes and consequences of the malfunction.
Power Module Repair
In cases where the PHILIPS 32PFL5332S / 60 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 at all, the PLSD190P3 24432 power supply module is most likely to be faulty or , which happens somewhat less often, - there is no processor power on the motherboard (a typical defect of some PHILIPS TVs). First of all, it is necessary to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse is broken in the power supply, in most cases a breakdown of the power switch is detected, which can be integrated with the PWM controller, or a separate field-effect transistor can be used. The rectifier bridge diodes and the electrolytic capacitor of the mains rectifier filter should also be checked.
Power switches in flyback converters fail extremely rarely for no reason and, if they are broken, it is necessary to look for a malfunction in the stabilization circuits by checking electrolytic capacitors, semiconductor devices, and resistors in the primary circuit. The cause may be a malfunction of the PWM controller chip, which can only be checked by replacing it with a new or obviously working one.
If the power module uses an active KKM circuit (power factor control), troubleshooting is somewhat more complicated.
Inverter Repair
If the PHILIPS 32PFL5332S / 60 does not have an image, but there is sound, there is a possibility of a malfunction of the backlight or power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
Diagnostics of the LOGAH REV.3 VIT71020.62-68 inverter can be difficult due to the operation of the protection, which is organized by the designers to prevent negative consequences or fires in emergency cases, for example, during short circuits or breaks in the lamp power supply circuit, as well as their possible depressurization. To make the necessary measurements at control points or to take the necessary waveforms, repairmen have to block the protection circuits in order to be able to diagnose.
Turning off the protection for diagnostic purposes, it must be remembered that in this case there is a risk of failure of the power elements of the inverter. Upon completion of the diagnosis, all regular protection circuits should be restored.
Attention to users! Self-repair of a PHILIPS 32PFL5332S / 60 TV without the appropriate qualifications and experience can lead to its complete non-repairability!


Service manual and schematic diagram 32PFL5332S/60 Chassis LC7.1E LA

for models:
 26PFL3312/10, 26PFL3312S/60, 26PFL5322/10, 26PFL5322/12, 26PFL5322S/60, 26PFL7332S/60, 32PFL3312/10, 32PFL3312S/60, 32PFL5322/10, 32PFL5322/12, 37PFL3312/10,37PFL3312S/60, 37PFL5322/10, 37PFL5322/12, 37PFL5322S/60, 42PFL3312/10, 42PFL3312S/60, 42PFL5322/10, 42PFL5322/12, 42PFL5322S/60


 The appearance of MainBoard 3139_123_62611 is shown in the figure below:
3139_123_62611
3139_123_62611 can be used in TVs:
PHILIPS 26HF5445/10 (Panel V260B1-L03 code 068 p/n: 932224937682), PHILIPS 26PFL5322S/60 (Panel V260B1-L03 Rev.C3), PHILIPS 26PFL7332S/60 (Panel V260B1-L03 Rev.C3), PHILIPS 32PFL3312S/80 (Panel V315B1-L05 REV.C1), PHILIPS 32PFL5322S/60 (Panel LK315T3LZ93Q), PHILIPS 32PFL5322S/60 (Panel T315XW02 V.D), PHILIPS 32PFL5332S/60 (Panel T315XW02), PHILIPS 37PFL3312/10 (Panel LC370WX1-SLB1), PHILIPS 37PFL3312S/60 (Panel LC370WX4-SLB1), PHILIPS 37PFL3312S/60 (Panel LC370WX5 (SL)(B1)), PHILIPS 37PFL5322S/60 (Panel LC370WX4-SLB1), PHILIPS 37PFL5322S/60 (Panel LC370WX4-SLB1 T704A REV-0.8), PHILIPS 37PFL7662D/12 (Panel T370HW02 V.1), PHILIPS 42PFL3312S/60 (Panel LC420WX8 (SL)(B1)), PHILIPS 42PFL5322S/60 (Panel LC420WX7 SLB1 T703C), PHILIPS 42PFL7662D/12 (Panel LC420WU5 code 093), PHILIPS 42PFL7682D/12 (Panel LC420WU5), PHILIPS 47PFL5522D/12 (Panel LC470WX1-SLA2 code 109 p/n: 932225331682 (LGPH) B ).
The appearance of the power supply
Main features of the PHILIPS 32PFL5332S device:
Installed matrix (LCD-panel) T315XW02.
The matrix control uses the Timing Controller (T-CON) T315VX02.
The VIT71020.62-68 inverter is used to power the backlight, controlled by the OZ964SN PWM controller (20pin), LM324, LM339. As power elements of the inverter, keys of the type P3004ND5G are used.
The necessary supply voltages for all nodes of the PHILIPS 32PFL5332S TV are generated by the PLCD190P3 power supply module, or its analogs.
MainBoard - the main board (motherboard) is a 3139_123_62611 module, using CPU chips: M30300SAGP; DRAM: EDS1216AGTA; NAND Flash: M29W320ET70N; EEPROM: M24C64; SOUND: TDA8932T and others.
The UV1318S / A tuner allows you to receive television programs and tune to channels.
Additional technical information about the panel:
Brand: AUO
Model: T315XW02 VU
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 400 cd / m²
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V