Technical description and composition of the PHILIPS 32PF5331 TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 32PF5331 / 12
Chassis / Version: LC4.31E AA
Panel: T315XW01 V9 // LC320W01-SL06
T-CON: T315XW01_V6 T260XW02_V3 AUO-016K1 W9864G2GH-7
Inverter (backlight): V211 4H.V2118.011 6101A621004 (GP) S, V211 001 DARFON 4H.V2118.001 6101A621002 (GP) M
Power Supply (PSU): PLCD190P1 // DPS-188AP
PWM Power: TEA1533AT (SOP14), L6562D (PFC), TEA1601T (SOP16)
MainBoard: 3139-123-6117.2 WK542.2
IC MainBoard: gm1501-LF-M4747CF_0710S, M29W400DT, TDA15021H / N1C91, TDA8931T
Tuner: UL1318S / AI H-3
Control: IR: 3139 267 24041 (3139 123 6171.1)
Specifications 32PF5331
PHILIPS 32PF5331
General recommendations for repairing TV LCD
Repair of the PHILIPS 32PF5331 / 12 TV is advisable to start with a careful external examination. In this case, both external and internal components of the device should be inspected. Specific external damage to the elements can sometimes prompt further actions to determine the malfunction of the TV and localize the defect before the necessary measurements and waveforms are taken. In some cases, faulty elements can be seen with the naked eye, for example, charred resistors or swollen metal-ceramic capacitors, or electrolytic in rectifier filters. Ring cracks formed in the soldered terminals of transformers or heating elements of the circuit are also frequent sources of many malfunctions with a variety of external manifestations.
Power Module Repair
If PHILIPS 32PF5331 / 12 does not turn on, no control lights on the front panel are on or blinking, therefore, there is a very high probability of a power supply module DPS-188AP // PLCD190 P1 malfunction. When diagnosing and repairing the power supply, first of all, replace the swollen capacitors of the filter of the secondary rectifiers and check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module - rectifier diodes or power switch.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors of the N-FET type fail for no reason to be looked for by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, either dried electrolytic capacitors or dangling resistors of the primary circuit of the PSU, 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 an active Power Factor Corrector (PFC) is used in the power module circuitry, it is sometimes more difficult to troubleshoot. Knowledge, experience, intuition and skills in such cases have a great advantage for a successful repair.
Inverter Repair
Sometimes the PHILIPS 32PF5331 / 12 TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or of the lamps themselves, which can be checked by replacement. In such cases, it is necessary to verify the serviceability of all electrolytic capacitors of the filter according to the power supply of the inverter itself, including the power supply unit (power supply unit).
Diagnosis and repair of the inverter is often complicated by the organization of special protection circuits, which is necessary for fire safety and turns off the inverter in any emergency situation, for example, when the lamps are worn or depressurized. Often, to block a defect, it needs to be locked.
It should be remembered that when the protection is turned off, there is always a risk of failure of the inverter power elements during diagnosis. After repair, it is necessary to restore all standard converter protection circuits.
Repair Main Board
If the motherboard SSB LC4.31E is faulty, first of all it is necessary to check all the linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes you can check the health of MB only by replacement.
Attention! For users and owners of 32PF5331 / 12 TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-serviceability of the device.
Service manual and schematic diagram 32PF5331/12 Chassis LC4.31E AA
FOR MODELS 26PF5321/10/12, 32PF5321/10/12, 37PF5321/10/12, 26PF7321/12, 32PF7321/12, 37PF7321/10/12, 42PF5421/10.
PSU ----------------> PLCD190P1 schematic diagram
The appearance of MainBoard 3139-123-6117.2 is shown in the figure below:3139-123-6117.2
3139-123-6117.2 can be used in televisions:
PHILIPS 26PF4311S/10 (Panel LC260WX2(SL)(B2)), PHILIPS 26PF5521 (Panel PLCD170P2), PHILIPS 26PF7321/12 (Panel LC260WX2-SL04), PHILIPS 32PF4311S/10 (Panel LC320W01 (sl)(06)), PHILIPS 32PF4311S/10 (Panel LC320W01(SL)(06)), PHILIPS 32PF5331/12 (Panel T315XW01 V9), PHILIPS 32PF7321 (Panel LC320W01), PHILIPS 32PF7331/12 (Panel LC320W01), PHILIPS 32PFL3321S/60 (Panel LC320W01 (SL)(06)), PHILIPS 37PFL3321/10 (Panel LC370WX1-SL04), PHILIPS 32PF3321/12 (Panel CLAA320WB02 (P)), PHILIPS 37PF3321/12 (Panel LC370WX1 (SL)(04)).
PSU Advanced
The PLCD190P1 power module is made using a Power Factor Correction (PFC) scheme to eliminate multiple AC harmonics introduced into the power supply by the device. The PFC assembly is a Step-Up Converter based on the L6562D PWM controller, which evenly distributes high-frequency impulses of the charging current of the electrolytic capacitor of the rectifier filter of the mains voltage over a period of 50 Hz. The current of its charge in this case will already be determined not by its reactance (usually 10-30 ohms for the network frequency), but by the elements of the converter. As a result, a change in the amplitude of the pulses (envelope) of the consumed current of the converter will repeat the shape and phase of the input sinusoidal voltage. The availability of an increased voltage (about + 380V) in the operating mode on the capacitor of the line filter indicates the serviceability of the PFC node.
The appearance of the power supply
Main features of the PHILIPS 32PF5331 device:
Installed matrix (LCD panel) T315XW01 V9 or LC320W01-SL06.
The matrix control uses the Timing Controller (T-CON) T315XW01_V6.
To power the backlight used inverter V211.
The necessary supply voltages for all nodes of the PHILIPS 32PF5331 TV are generated by the PLCD190P1 power supply module or its analogs using TEA1533AT (SOP14), L6562D (PFC), TEA1601T (SOP16) microcircuits.
MainBoard - the main board (motherboard) is a module 3139-123-6117.2, using microchips gm1501-LF-M4747CF_0710S, M29W400DT, TDA15021H / N1C91, TDA8931T and others.
The UL1318S / AI H-3 tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T315XW01 V9
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (8-bit)
Response Time: 8/8 (Tr / Td)
Frequency: 60Hz
Lamp Type: CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
