Technical description and composition of the PHILIPS 37PFL7332 TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 37PFL7332 / 10
Chassis / Version: BJ3.1E LA
Panel: LC370WX1 (SL) (B1) // T370XW02 V5
T-CON: 6870C-0088D LC370WX1-SLA1 // VIT71022.54 REV2
Inverter (backlight): LC370 (MASTER) YPNL-T021A 6632L-0334A, LC370 (SLAVE) YPNL-T021B 6632L-0335A
PWM Inverter: OZ9982GN
Power Supply (PSU): 3104_313_60924 3104 313 6092.4
PWM Power: AVS1ACP08, MC34067P
MOSFET Power: STP15NK50ZFP
MainBoard: 3104_313_60735 3104 313 60735 313926851301 310433703651
IC MainBoard: PNX8550, K4D551638H-LC50, PNX3000HL, ISP1561BM, K96561
Tuner: UV1318S / A I H-3
Specifications 37PFL7332
PHILIPS 37PFL7332
General recommendations for repairing TV LCD
Possible manifestations of defects
- PHILIPS 37PFL7332 does not turn on and does not show any signs of performance at all. Does not blink indicators and does not respond to control buttons.
With such manifestations, a malfunction is most likely to be detected in the 3104_313_60924 power supply module. It is necessary to measure its output voltages and, in case of their absence, check the serviceability of power switches (STP15NK50ZFP) and rectifier diodes in the converters for possible breakdown.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually work abnormally in the short circuit mode, and during short circuit in the power elements of the primary circuit, the mains fuse often breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. These can be circuits supplying the PWM controller, damping or frequency-setting circuits, or elements of OOS (negative feedback) in the stabilization circuit. PWM controllers (PWM) AVS1ACP08, MC34067P, in the absence of external damage and short circuit between the terminals, are checked by replacing with obviously good ones.
- There is no image, there is sound, it responds to the remote control, the channels are switched. In some cases, the image appears when you turn on and immediately disappears.
The defect can be caused by problems in the nodes or elements of the backlight of the display, or in the power supply of the lamps or inverter. If all the electrolytic capacitors of the filter according to the power supply of the inverter are working, make sure that the lamps are working, then you need to check the converter keys and the secondary windings of the transformers.
If in diagnosing a malfunction, it is necessary to disable the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during work, and after their completion it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, it does not respond to the remote control.
Repair or diagnostics of the 3104_313_60735 motherboard should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the elements PNX8550, K4D551638H-LC50, PNX3000HL, ISP1561BM, K96561. BGA chip malfunctions are usually easy to detect by warming up.
If there is no reception of television channels, but the TV is working properly from external devices, first of all, check the voltage of the tuner UV1318S / A I H-3 and update the software. The pulses from the I2C bus must be controlled with an oscilloscope.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Entrust repair to professionals with sufficient experience in the field of repair of electronic equipment.
Service manual and schematic diagram 37PFL7332/10 Chassis BJ3.1E LA
FOR MODELS: 32PFL7332/10, 32PFL7562D/10, 32PFL7572D/10, 37PFL7332/10, 37PFL7562D/10, 42PFL7332/10, 42PFL7562D/10, 42PFL7572D/10
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
Main features of the PHILIPS 37PFL7332 device:
Installed matrix (LCD panel) LC370WX1 (SL) (B1) or T370XW02 V5.
The matrix control uses the Timing Controller (T-CON) 6870C-0088D.
An LC370 inverter is used to power the backlight, it is controlled by the OZ9982GN PWM controller.
The necessary supply voltages for all nodes of the PHILIPS 37PFL7332 TV are generated by the power supply module 3104_313_60924, or its analogs using microchips AVS1ACP08, MC34067P and power switches of the STP15NK50ZFP type.
MainBoard - the main board (motherboard) is a module 3104_313_60735, using chips PNX8550, K4D551638H-LC50, PNX3000HL, ISP1561BM, K96561 and others.
The UV1318S / A I H-3 tuner allows you to receive television programs and tune to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC370WX1-SLB1
Type: a-Si TFT-LCD, Panel
Diagonal size: 37 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 819.6x460.8 mm
Surface: Antiglare (Haze 13%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (8-bit)
Response Time: 6/6 (Tr / Td); 6 (G to G)
Frequency: 60Hz
Lamp Type: 20 pcs EEFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
