Technical description and composition of the PHILIPS 37PFL7562D TV, panel type and applicable modules. The composition of the modules.PHILIPS
Model: 37PFL7562D / 10
Chassis / Version: BJ3.1E LA
Panel: T370XW02 V05
T-CON: T370XW02 V5 CB 12v 06A69-1A AUO AS-15 BD8156EFV RS5065 W9864G2GH-7 24C32
Inverter (backlight): VIT71022.54 LOGAH REV2
PWM Inverter: OZ964SN (pl20n). EZ0N649 (pl14n). LM339A (pl14n).
Power Supply (PSU): 310431361213 3104 313 61213
PWM Power: MC34067P (16p), TEA1533AT (PL 14N), LA1506AF (PL 14N)
MOSFET Power: D454 BE6K22 D413 BH6N15
MainBoard: 3104_313_60735 3104 313 60735 SSB
IC MainBoard: PNX8550, K4D551638H-LC50, PNX3000HL
Tuner: UV1318S / AIH-3
Control: RC203402 / 01 3139 238 14221LF
Specifications 37PFL7562
PHILIPS 37PFL7562D
General recommendations for repairing TV LCD
Like all other televisions, it is advisable to start PHILIPS 37PFL7562D / 10 with a careful inspection of both external and internal elements and modules. It often happens that some damage to elements or connections helps determine the direction of the troubleshooting. Electrolytic capacitors of filters with a swollen casing, as well as ring cracks formed in the soldered leads of heating elements, or a layer of coal on burnt resistors sometimes tell the repairman the causes of the malfunction and possible consequences.
Power Module Repair
In the case when the 37PFL7562D / 10 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, most likely in this case the power module is faulty. 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 rectifier diode bridge of the network, as well as the large electrolytic capacitor of the filter of the network rectifier and the key transistor D454 BE6K22 D413 BH6N15.
It should be remembered that the N-FET keys used in flyback converters rarely fail without their own sake without any reasons that must be sought by checking other elements of the circuit. 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. Chip PWM controller bp. MC34067P (16p). TEA1533AT (pl 14n). LA1506AF (pl14n) can also cause a breakdown of the power switch of the converter.
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
If the PHILIPS 37PFL7562D / 10 TV does not have an image, but there is sound, the malfunction should be sought in the power converter of the backlight (inverter). It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the PSU (power supply) for excessive ESR.
In most cases, the diagnosis and repair of the VIT71022.54 LOGAH REV2 inverter is difficult due to the organization of protection, which turns it off in emergency cases to avoid fires during short circuits or open circuits in high voltage circuits and during depressurization of lamps. Often, repairmen block the protection circuits in order to make the necessary measurements at the control points of the inverter to identify the causes of the defect.
When diagnosing with the protection off, special precautions must be taken, because there is a risk of failure of the power elements of the inverter. After the diagnosis, it is imperative to restore the protection circuits for the inverter to operate normally.
Repair Main Board
Repair of the SSB motherboard must 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.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.
Service manual and schematic diagram 37PFL7562D/10 Chassis BJ3.1E LA
The appearance of MainBoard 3104_313_60735 is shown in the figure below:3104_313_60735
3104_313_60735 can be used in TVs:
PHILIPS 26PF9531/10 (Panel LC260WX2 SL B2), PHILIPS 26PF9531/10 (Panel LC260WX2-SLB2 (SLA1)), PHILIPS 32PF9541/10 (Panel LC320W01-SL06 code 046), PHILIPS 32PFL7332/10 (Panel V315B1-L05 Rev.C1), PHILIPS 32PFL7572D/12 (Panel LC320W01-SLB1 116), PHILIPS 32PFL7582D/10 (Panel LC320W01 (SL)(06) code 046), PHILIPS 37PFL7562D/10 (Panel T370XW02 V05), PHILIPS 37PFL7332/10 (Panel LC370WX1 (SL)(B1)).
The appearance of the power supply
Key Features of PHILIPS 37PFL7562D:
Installed matrix (LCD panel) T370XW02 V05.
The matrix control uses the Timing Controller (T-CON) T370XW02.
The VIT71022.54 inverter is used to power the backlight lamps, it is controlled by the OZ964SN PWM controller (pl20n). EZ0N649 (pl14n). LM339A (pl14n) ..
The necessary supply voltages for all nodes of the PHILIPS 37PFL7562D TV are generated by the power supply module 310431361213, or its analogs using microcircuits MC34067P (16p), TEA1533AT (pl 14n), LA1506AF (pl14n) and power switches of the type D454 BE6K22 D413 BH6N15.
MainBoard - the main board (motherboard) is a module 3104_313_60735, using chips PNX8550, K4D551638H-LC50, PNX3000HL and others.
The UV1318S / AIH-3 tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T370XW02 V5
Type: a-Si TFT-LCD, Panel
Diagonal size: 37 inch
Resolution: 1366x768, WXGA
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 819.6x460.8 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1500: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 15/5 (Tr / Td); 8 (G to G)
Frequency: 60Hz
Lamp Type: CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
