Technical description and composition of the PHILIPS 32PFL3615 TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 32PFL3615 / 60
Chassis / Version: RAM1.0A LA
Panel: T315XW01 V.5 code 012
Inverter (backlight): PLHC-A961B
Power Supply (PSU): PLHC-A961B
PWM Power: Q0465R
MainBoard: 0171-2271-3204 AmTRAN
IC MainBoard: TL2428MC TPA3101D2 CD4052B
Tuner: HFT-8 / 125H
Control: 2422 549 02308
Specifications 32PFL3615
PHILIPS 32PFL3615
General recommendations for repairing TV LCD
Repair of the PHILIPS 32PFL3615 / 60 TV is advisable to start with a careful external examination. In this case, both external and internal components of the device should be inspected. Often, by visible changes, it is possible to determine the further direction of troubleshooting and localization of the defect before the start of the acquisition of oscillograms and the necessary measurements. In most cases, the repairman can guess the causes of the defect and possible consequences from the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of the element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
Power Module Repair
In the case when the 32PFL3615 / 60 does not turn on, does not respond to the remote control and the front panel buttons, does not blink light bulbs and does not show any signs of operability, the PLHC-A961B power supply module is most likely faulty in this case. In the general case, first of all, it is necessary to check the electrolytic capacitors of the secondary rectifier filters and the fuse at the input of the network. If it is broken, then you should check for breakdown of the PN junctions of the rectifier bridge diodes and the key transistor of the N-FET converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Possible options.
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, PWM controller Q0465R, which can only be checked by replacement, as well as 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, when you turn on the TV, the image appears and immediately disappears, or is initially absent when turned on, but there are sound and other functions work, there is a high probability of a malfunction of the inverter (power converter for the backlight). In such cases, the lamps, the inverter and the common power module are subject to verification, in which the electrolytic capacitors of the rectifier filter feeding the inverter should be checked.
The operation of the power circuits of the inverter and the backlight in the normal mode are controlled by special protection, which is organized for fire safety, for example, to disconnect during short circuits or breaks in high voltage connections or when the lamps are depressurized. This protection makes it difficult to diagnose and repair the inverter.
In these cases, special care must be taken in view of the risk of failure of the power elements. After completing all repair work, it is imperative to restore the protection circuits for full and safe further operation of the TV by the user.
Repair Main Board
When trying to repair the motherboard, you should first check the serviceability of linear stabilizers or power converters of microcircuits and, if necessary, update the software (software). In some cases, it is necessary to check or replace (if necessary) the elements of the MB board (SSB) - TL2428MC TPA3101D2 CD4052B.
Owners of 32PFL3615 / 60 TVs are recommended to contact qualified specialists with experience for repairs! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!
Service manual and schematic diagram 32PFL3615/60 Chassis RAM1.0A LA
The appearance of MainBoard 0171-2271-3204 is shown in the figure below:0171-2271-3204
The appearance of the power supply
Main features of the PHILIPS 32PFL3615 device:
Installed matrix (LCD panel) T315XW01 V.5 code 012.
To power the backlight used inverter PLHC-A961B.
The necessary supply voltages for all nodes of the PHILIPS 32PFL3615 TV are generated by the PLHC-A961B power module or its analogs using Q0465R microcircuits.
MainBoard - the main board (motherboard) is a 0171-2271-3204 module, using TL2428MC TPA3101D2 CD4052B microcircuits and others.
The HFT-8 / 125H tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T315XW01 V5A
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: 1200: 1
Display Colors: 16.7M (8-bit)
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: 5.0V