Technical description and composition of the PHILIPS 32PFL5403S TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 32PFL5403S / 60
Chassis / Version: Q522.2E LA
Panel: LC320WXN SAB1
T-CON: 66320494A
Power Supply (PSU): PLCD170PS09
PWM Power: TEA1601T (16)
MainBoard: 313912364172 3139 123 64172 HJ8362 1A.B
IC MainBoard: PNX8541E1 / 2416, ISP1564HL, NAND512W3A2CN6, AD8197, ELPIDA E2516AEBC-6E 2pcs
Tuner: TD1716F / BHXP-3
Specifications 32PFL5403D
PHILIPS 32PFL5403S
General recommendations for repairing TV LCD
Repair of the PHILIPS 32PFL5403S / 60 TV should begin with a careful external examination of all its components and modules. Also subject to inspection are body elements, functional control buttons, screen, cords and connectors. 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. Ring cracks in the soldering of the leads of the heating elements, swollen electrolytic capacitors, a charred paint layer on the resistors - all this for the repairman can be a hint in the assumptions about the causes and consequences of the malfunction.
Power Module Repair
If the 32PFL5403S / 60 TV does not turn on, does not emit any sounds when it is turned on, and also no indicators on the front panel light or blink - there is a high probability of a malfunction in the power module. In some cases, only the regulator or power converter of the control processor may be faulty, which is typical for some PHILIPS models. When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and the electrolytic capacitors of the filters of the converter secondary rectifiers. In the event of a fuse breaking, the cause should be sought in the power semiconductor elements of the pulsed flyback converter of the main power supply unit. First of all, it is necessary to check the diodes of the bridge of the rectifier of the mains voltage and the power switch of the converter, which can be installed separately on the radiator, or integrated with a PWM controller.
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. The PWM controller chip can also cause a breakdown of the power switch of the converter.
In cases using a power module with an active KKM, troubleshooting is sometimes somewhat more complicated.
Inverter Repair
If there is no image when you turn on the PHILIPS 32PFL5403S / 60, or it appears for a second and disappears completely, but there is sound, most likely either the backlight lamps or their power converter (inverter) are faulty. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit.
Repair of the inverter can often be somewhat complicated by the use of special protection circuits, which are designed to disconnect it in emergency cases for fire safety during depressurization of lamps, or short circuits or breaks in high-voltage circuits and connections. Sometimes it becomes necessary for diagnostic purposes to block the protection circuits in order to be able to make the necessary measurements at the control points of the circuit.
All necessary precautions must be observed when disabling the inverter protection during diagnostics and not leaving it disconnected after the repair is completed.
Owners and users of the PHILIPS 32PFL5403S / 60 TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences, which can lead to complete non-repairability of the device!
Service manual and schematic diagram 32PFL5403S/60 Chassis Q522.2E LA
The appearance of MainBoard 313912364172 is shown in the figure below:313912364172
313912364172 can be used in TVs:
PHILIPS 32PFL5403S/60 (Panel LC320WXN SAB1), PHILIPS 55PFL7606H/12 (Panel LC550EUF(SD)(F1)), PHILIPS 37PFL5603D/10 (Panel T370HW02 ).
The appearance of the power supply
Main features of the PHILIPS 32PFL5403S device:
Installed matrix (LCD-panel) LC320WXN SAB1.
The matrix control uses the Timing Controller (T-CON) 66320494A.
The necessary supply voltages for all nodes of the PHILIPS 32PFL5403S TV are generated by the PLCD170PS09 power supply module or its analogs using TEA1601T microcircuits (16).
MainBoard - the main board (motherboard) is a module 313912364172, using chips PNX8541E1 / 2416, ISP1564HL, NAND512W3A2CN6, AD8197, ELPIDA E2516AEBC-6E 2pcs and others.
The tuner TD1716F / BHXP-3 provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC320WXN-SAB1
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare (Haze 13%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1100: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: 12 pcs EEFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V