Technical description and composition of the PHILIPS 32PFL7332 TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 32PFL7332 / 10
Chassis / Version: BJ3.1E LA
Panel: V315B1-L05 Rev. C1
Lamp backlight: 16 Lamp CCFL
Inverter (backlight): I315B1-16D-L001A
PWM Inverter: OZ964GN
MOSFET Inverter: D604
Power Supply (PSU): 3104_313_60926 3104 313 60926 24V
MOSFET Power: D604 BH6T17
MainBoard: 3104_313_60735 3104 313 60735
IC MainBoard: PNX8550, K4D551638H-LC50, PNX3000HL, ISP1561BM, K96561
Tuner: UV1318S / A
Control: RC2034302 / 01 3139 238 14221LF
Specifications 32PFL7332
PHILIPS 32PFL7332
General recommendations for repairing TV LCD
Any repair of electronic equipment usually begins with a careful external inspection of the device and troubleshooting. In this case, you should inspect all the elements of the PHILIPS 32PFL7332 / 10 TV, both internal and external. Often, for certain external signs, it is possible to draw certain conclusions about the reasons for the failure of certain elements of the circuit even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. 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
If the 32LCD Supply 24v power supply module fails, the external manifestations may be different, for example, PHILIPS 32PFL7332 / 10 does not turn on at all and there is no indication of the indicator lights on the front panel. When diagnosing and repairing the power supply, after replacing the swollen capacitors of the secondary rectifier filters (if any), you must first check the mains fuse. If it breaks, you should check the power switch D604 BH6T17 and rectifier bridge diodes for avalanche (thermal) breakdown.
If a breakdown of the power switch of the flyback converter of the power supply unit is detected, it should be remembered that it does not fail by itself for no reason, which should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked by replacement, and also other semiconductor elements (diodes, transistors, zener diodes).
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 32PFL7332 / 10 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 I315B1-16D-L001A 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.
All necessary precautions must be observed when disabling the inverter protection during diagnostics and not leaving it disconnected after the repair is completed.
Owners of the 32PFL7332 / 10 TV are recommended to contact qualified professionals with experience for repairs! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!
Service manual and schematic diagram 32PFL7332/10 Chassis BJ3.1E LA
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 32PFL7332 device:
Installed matrix (LCD panel) V315B1-L05 Rev. C1.
To power the backlight, an inverter I315B1-16D-L001A is used, it is controlled by the PWM controller OZ964GN. As power elements of the inverter, keys of the D604 type are used.
The necessary supply voltages for all nodes of the PHILIPS 32PFL7332 TV are generated by the power supply module 3104_313_60926, or its analogs using power switches of the D604 BH6T17 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 tuner allows you to receive television programs and tune to channels.
Additional technical information about the panel:
Brand: CMO
Model: V315B1-L05
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1500: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 18/6 (Tr / Td); 8.5 (G to G)
Frequency: 60Hz
Lamp Type: 16 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
