Technical description and composition of the PHILIPS 42PFL5603D TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 42PFL5603D / 12
Chassis / Version: Q528.2E LA
Panel: T420HW01 V.4 code 131 p / n: 932225801682
Inverter (backlight): integrated into PSU
PWM Inverter: DDA001AG, LM324A, LM358
MOSFET Inverter: P13NK60ZFP
Power Supply (PSU): DPS-279BP B
PWM Power: DDA001B (analog L6599 PWM resonant), 1606B (PFC), 3BS02G (8pin Standby)
MOSFET Power: 15N60C3, 2SK3569
MainBoard: 313912363411 3139 123 63411
IC MainBoard: PNX8541E / 2414, TDA8932BTW, ISP1564HL,
Tuner: TD1716F / BHXP-3
Control: Remote: 2422 549 01833, IR: 3139 123 63273 v2 WK748.2
Specifications 42PFL5603D
PHILIPS 42PFL5603D
General recommendations for repairing TV LCD
Repair of the PHILIPS TV with the Q528.2E LA chassis should begin with a careful external inspection of all its components and modules. Using visible changes in the state of components, it is usually possible to determine the further direction of troubleshooting and localization of the defect before the necessary measurements are taken. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
If the TV does not turn on, no indicators on its front panel are lit or blinking. Also, if the TV does not respond to the remote control and buttons, does not make any sounds or any signs of operability when it is turned on, there is a certain chance that the DPS-279BP B power module is defective and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of processor power, which is typical for certain 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 reason should be sought in the power semiconductor elements of the pulse converter of the main power supply. First of all, it is necessary to check the diodes of the bridge of the rectifier of the mains voltage and the power switch (s) of the converter 15N60C3, K3569.
Power switches in pulsed power supplies (SMPS) fail extremely rarely for no reason and, if they are broken, it is necessary to look for a malfunction in the stabilization circuits by checking electrolytic capacitors, semiconductor devices, and resistors in the primary circuit. The reason may be a malfunction of the PWM controller chip 1606B (8), 3BS02G (8), 324A (14), 358 (8), which can only be checked by replacing it with a new or obviously working one.
If the PHILIPS 42PFL5603D TV does not have an image, but there is sound, the malfunction should be sought in the backlight lamp power converter (inverter). It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the BP (power supply) for an overstated ESR. All necessary precautions must be observed when disabling the inverter protection during diagnostics and not leaving it disconnected after the repair is completed.
On the PL5.A motherboard, in case of a malfunction, you should first check the performance of all stabilizers or power converters of the microcircuits and, if necessary, update the software (software). When repairing an MB board, you need to check its components PNX8541E / 2414, TDA8932BTW, ISP1564HL,. Defective items should be replaced. If BGA chips are installed, their malfunction is usually localized by heating. If chips with BGA soldering technology are used, a problem in its implementation is detected by the method of local heating of the chip.
Attention! For users and owners of 42PFL5603D TVs who do not have the appropriate qualifications, knowledge and experience, we categorically do not recommend attempting self-repair in order to avoid negative consequences that could lead to complete non-serviceability of the device.
Service manual and schematic diagram 42PFL5603D/12 Chassis Q528.2E LA
42PFL5603D SSB: 3139 123 63401V3, 3139 123 63411V3 WK746.5_1, EH807.7PL5.A
The appearance of MainBoard 313912363411 is shown in the figure below:313912363411
313912363411 can be used in TVs:
PHILIPS 32PFL7403D/12 (Panel T315XW02 V.F), PHILIPS 32PFL7423D/12 (Panel LC320WXD (SA)(B1) code 154 p/n: 932226033682), PHILIPS 32PFL7603S/60 (Panel V315B1-L05 Rev. C1), PHILIPS 32PFL7613D/12 (Panel LC320WXN (SA)(B1)), PHILIPS 37PFL7603S/60 37PFL7603D/10 (Panel T370HW02 V.3), PHILIPS 42PFL5603D/12 (Panel T420HW01 V.4 code 131 p/n: 932225801682 ), PHILIPS 47PFL5603D/10 (Panel LC470WUF SA A1), PHILIPS 47PFL7603/10 (Panel V470H1-L05 code 159).
PSU Advanced
The 42PFL5603D / 12 model uses the DPS-279BP power supply unit using the PFC (Power Factor Correction) node - an active filter of the highest harmonics of the current consumption. In fact, it is a step-up converter based on the 1606B PWM controller, which eliminates the charge current of the electrolytic capacitor of the rectifier filter directly from the network through open diodes, when its charging current is determined by its reactance.
As a result of the operation of the converter, the envelope of the high-frequency pulses of the input current of the converter will repeat the shape and phase of the input voltage. The health of the PFC node can be indirectly judged by the presence of an increased constant voltage (about + 380V) on the capacitor of the rectifier network in operating mode.
The appearance of the power supply
Main features of the PHILIPS 42PFL5603D device:
Installed matrix (LCD panel) T420HW01 V.4 code 131 p / n: 932225801682.
To power the backlight, a converter is used, combined with a power supply, controlled by a PWM controller DDA001AG, LM324A, LM358. As power elements of the inverter, keys of the type P13NK60ZFP are used.
The necessary supply voltages for all nodes of the PHILIPS 42PFL5603D TV are generated by the DPS-279BP power supply 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 313912363411, using chips PNX8541E / 2414, TDA8932BTW, ISP1564HL, and others.
The tuner TD1716F / BHXP-3 provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T420HW01 V4
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 (Haze 40%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1500: 1
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 72%
Response Time: 15/5 (Tr / Td); 6.5 (G to G)
Frequency: 60Hz
Lamp Type: 18 pcs CCFL Embedded (Balance board)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V