Technical description and composition of the PHILIPS 42PFL5603S TV, panel type and applicable modules. The composition of the modules.PHILIPS
Model: 42PFL5603S / 60
Chassis / Version: Q552.1E LA
Panel: T420HW01 V2
T-CON: T420HW01 V2 (07A33-1A)
Inverter (backlight): integrated into PSU
PWM Inverter: DDA001AG (BG), LM324A, LM358
Power Supply (PSU): DPS-279BP 272217100577 rev: 01 F 2722 171 00577
PWM Power: DDA001B (analog L6599 PWM resonant), 1606B (PFC), 3BS02G (8pin Standby)
MOSFET Power: 15N60C3, 2SK3569
MainBoard: 313912364221 W810.5 BD 313912364231
IC MainBoard: PNX8541E / 2414, BU7988KVT, NAND512W3A2CN6, ISP1564HL, TDA9832BTW
Tuner: TD1716F / BHXP-3
Specifications 42PFL5603D
PHILIPS 42PFL5603S
General recommendations for repairing TV LCD
Possible malfunctions
- The PHILIPS 42PFL5603S TV does not turn on and does not show any signs of turning on at all. There are no reactions to the control buttons or the remote control.
Failure in such cases should be sought in the DPS-279BP power supply circuits. In the absence of the necessary supply voltages in the secondary circuits of the converters, it is necessary first of all to check the power switches and rectifier diodes for a possible partial or complete breakdown.
In case of diode breakdowns in the secondary circuits, the converter can operate in emergency short-circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key usually breaks.
The breakdown of Mos-Fet keys used in pulsed sources is often caused by malfunctions of other elements, for example, power supply, frequency-setting, damper ... as well as elements of the Negative Stabilization Feedback. PWM chip DDA001B (analog L6599 PWM resonant), 1606B (PFC), 3BS02G (8pin Standby) can also cause a malfunction of the power switch of the converter and is checked by replacement.
- There is no image, but there is sound and reaction to the remote control. Or for a second, the image may appear immediately after switching on.
These manifestations can be triggered by a power module, or by defects in the inverter, as well as a distortion of the currents in the lamps due to their uneven wear. If all the electrolytic capacitors of the filter according to the inverter power supply are serviceable, you should 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 they are finished, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
- The indicator blinks or lights constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the 313912364221 motherboard should begin by checking the stabilizers and power converters needed to power the microcircuits and matrix. If necessary, update or replace the software (software). Complex repair of MB (SSB) is possible only in the conditions of a service center with the necessary equipment. Checking or replacing elements PNX8541E / 2414, BU7988KVT, NAND512W3A2CN6, ISP1564HL, TDA9832BTW requires the necessary training and professional skills in repairing modules at the component level. Problems associated with the use of BGA soldering technologies can sometimes be diagnosed by warming up.
If the TV works normally from external devices, but does not tune into television channels, the TD1716F / BHXP-3 tuner may be malfunctioning. In such cases, first of all, you should make sure that there are supply voltages at its corresponding conclusions. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the cause of the inoperability of the tuner may be a software failure.
Attention to users! Self-repair of a PHILIPS 42PFL5603S TV without the appropriate qualifications and the necessary experience can lead to its complete non-repairability!
Service manual and schematic diagram 42PFL5603S/60 Chassis Q552.1E LA
The appearance of MainBoard 313912364221 is shown in the figure below:313912364221
The appearance of the power supply
Main features of the PHILIPS 42PFL5603S device:
Installed matrix (LCD panel) T420HW01 V2.
The matrix control uses the Timing Controller (T-CON) T420HW01.
To power the backlight lamps, a converter is used, combined with a power supply unit, controlled by a PWM controller DDA001AG (BG), LM324A, LM358.
The necessary supply voltages for all nodes of the PHILIPS 42PFL5603S TV are generated by the DPS-279BP power module or its analogs using DDA001B (analog L6599 PWM resonant), 1606B (PFC), 3BS02G (8pin Standby) microcircuits and power switches of the 15N60C3, 2SK3569 type.
MainBoard - the main board (motherboard) is a module 313912364221, using chips PNX8541E / 2414, BU7988KVT, NAND512W3A2CN6, ISP1564HL, TDA9832BTW and others.
The tuner TD1716F / BHXP-3 provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T420HW01 V2
Type: a-Si TFT-LCD, Panel
Diagonal size: 42 inch
Resolution: 1920x1080, FHD
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 930.24x523.26 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); 6.5 (G to G)
Frequency: 60Hz
Lamp Type: 18 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V