Technical description and composition of the PHILIPS 37PFL5603D TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 37PFL5603D / 10
Chassis / Version: Q522.1E LA
Panel: T370HW02
T-CON: T370HW02 V402
Inverter (backlight): integrated into PSU
PWM Inverter: DDA001AG (BG)
Power Supply (PSU): DPS-279BP A
PWM Power: DDA001B (analog L6599 PWM resonant), 1606B (PFC), 3BS02G (8pin Standby)
MainBoard: 313912364172 3139 123 64162 W821.4 BD
IC MainBoard: PNX8541E1 / 2416, ISP1564HL, NAND512W3A2CN6, AD8197, ELPIDA E2516AEBC-6E
Tuner: TD1716V21F / BHXP-3 3139 147 26571J
Specifications 37PFL5603D
PHILIPS 37PFL5603D
General recommendations for repairing TV LCD
Possible malfunctions
- PHILIPS 37PFL5603D does not turn on and does not show any signs of performance at all. Does not blink indicators and does not respond to control buttons.
Most likely in this case, the main switching power supply (IIPS) DPS-279BP is faulty. It is necessary to verify the presence of its output voltages and, if they are completely absent, check the power switches and rectifier diodes for a probable short circuit.
In case of any breakdown of semiconductors in the secondary circuits, the converter can usually work normally in emergency short circuit mode. There are no output voltages. And with a short circuit in the power elements of the primary circuit, as a rule, the mains fuse breaks and less often the current sensor at the source of the key.
Breakdown of power switches (MosFet) in pulsed sources is sometimes caused by malfunctions of other circuit elements, for example, in circuits supplying a PWM controller, frequency-setting or damper ones, as well as in negative feedback circuits (OOS) of stabilization. PWM controllers (PWM) DDA001B (analog L6599 PWM resonant), 1606B (PFC), 3BS02G (8pin Standby), if they do not have visible damage to the case and open fault between the terminals, are usually checked by replacement.
- There is no image, there is sound, it is responding to the remote control. Or immediately after turning on for a second, the image may appear and immediately disappear.
The defect can be caused by problems in the nodes or elements of the backlight of the display, or in the power supply of the lamps or the inverter.After checking all the electrolytic capacitors of the filters that are involved in the power supply to the inverter, you must ring in its converter power keys for breakdown and secondary windings of transformers for an open.
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 their completion it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
- The TV does not turn on, does not respond to the remote control. The indicator blinks or signals standby mode.
Repair or diagnostics of the 313912364172 motherboard should begin by checking the stabilizers and power converters needed to power the microcircuit and matrix. If necessary, update or replace the software (software). Sophisticated MB board repair (SSB) is in some cases possible and practiced by repairmen. To do this, check and, if necessary, replace the elements PNX8541E1 / 2416, ISP1564HL, NAND512W3A2CN6, AD8197, ELPIDA E2516AEBC-6E. BGA chip malfunctions are usually easy to detect by warming up.
Before replacing the tuner TD1716V21F / BHXP-3 3139 147 26571J, if there is no tuning for the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Attention TV owners! Attempts at self-repair of PHILIPS 37PFL5603D are not recommended by the manufacturer and can lead to serious negative consequences!
Service manual and schematic diagram 37PFL5603D/10 Chassis Q522.1E 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 37PFL5603D device:
Installed matrix (LCD panel) T370HW02.
The matrix control uses the Timing Controller (T-CON) T370HW02.
To power the backlight lamps, a converter is used, combined with a power supply unit, controlled by the PWM controller DDA001AG (BG).
The necessary supply voltages for all nodes of the PHILIPS 37PFL5603D TV are generated by the DPS-279BP power module or its analogs using DDA001B (analog L6599 PWM resonant), 1606B (PFC), 3BS02G (8pin Standby) microcircuits.
MainBoard - the main board (motherboard) is a module 313912364172, using chips PNX8541E1 / 2416, ISP1564HL, NAND512W3A2CN6, AD8197, ELPIDA E2516AEBC-6E and others.
The tuner TD1716V21F / BHXP-3 3139 147 26571J provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: AUO
Model: T370HW02 VD
Type: a-Si TFT-LCD, Panel
Diagonal size: 37 inch
Resolution: 1920x1080, FHD
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 819.36x460.89 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 2500: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 5.5 (G to G)
Frequency: 60Hz
Lamp Type: CCFL Embedded (Inverter)
Signal Interface: LVDS (2 ch, 10-bit), 51 pins
Voltage: 12.0V
