Technical description and composition of the PHILIPS 20PF4110S TV, type of panel and applicable modules. The composition of the modules.PHILIPS
Model: 20PF4110S / 58
Chassis / Version: LC4.1E AB
Panel: LC201V02 (SD) (B1)
Inverter (backlight): integrated into PSU
Power Supply (PSU): P2004471 - 3121 133 32678
PWM Power: IC_Power
MainBoard: 3139_123_60192 3139 123 60192 313912360192 Wk534.3
IC MainBoard: GM5221H-LF, SM5301BS, 1517AW, LD1086-10, TDA15021H1 / N1C91, 29LV040CQC-70G
Tuner: UV1318S / A I H-3
Control: IR: 3139 188 58811
Specifications 20PF4110
PHILIPS 20PF4110S
General recommendations for repairing TV LCD
Possible manifestations of defects
- The PHILIPS 20PF4110S TV does not turn on, does not respond to the remote control and the control panel buttons, the indicators do not light or flash.
In the vast majority of such cases, a malfunction is detected in the P2004471 power module. It is necessary to measure its secondary output voltages, and in case of their absence, check the serviceability of the power switches of the converters and rectifier diodes for a short circuit.
In case of breakdowns in the secondary circuits, the converter can operate in a short circuit mode, and during a short circuit in the elements of the primary circuit, the mains fuse usually breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke an excess of the maximum current or voltage. It can be supply, damper circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power key can be PWM IC_Power. It is checked only by replacement with a known good one.
- 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 the power module, or by inverter defects, as well as by the distortion of the currents in the lamps due to their uneven wear. After checking all the electrolytic capacitors of the filters that are involved in the power supply of the inverter, it is necessary to ring in its converter the power switches for breakdown and the secondary windings of the 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 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 TV does not enter the operating mode, does not respond to the remote control. The indicator on the front panel lights constantly or blinks.
Repair or diagnostics of the 3139_123_60192 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). If it is not possible to replace the MB board (SSB), you need to check the health of its elements - GM5221H-LF, SM5301BS, 1517AW, LD1086-10, TDA15021H1 / N1C91, 29LV040CQC-70G. Defective components should be replaced.
If you suspect a malfunction of the UV1318S / A I H-3 tuner, first of all, you need to verify the correctness of the software, as well as the presence of the required voltage levels and the data exchange pulses with the processor via the I2C bus at the corresponding tuner pins.
Attention! For users and owners of 20PF4110S 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-repairability of the device.
The appearance of MainBoard 3139_123_60192 is shown in the figure below:3139_123_60192
3139_123_60192 can be used in TVs:
PHILIPS 20PF4110S/58 (Panel LC201V02 (SD)(B1)), PHILIPS 15PF4121/58 (Panel LC150X02 (TL)(01)), PHILIPS 15PF5120/58 (Panel LC150X02), PHILIPS 15PF5121/58 (Panel IDM69E1S51718 Rev:01 QD15XL16 ), PHILIPS 15PF5121/58 (Panel T150XG01 V.3), PHILIPS 20HF5474/10 (Panel LC201V02 (SD)(D1)), PHILIPS 20PF4121/58 (Panel LC201V02 (SD)(B1)), PHILIPS 20PF5120/58 (Panel A201SN02 V4), PHILIPS 20PF5320/58 (Panel LC200WX1 (SL)(01)), PHILIPS 20PFL4101S/60 (Panel LC201V02 SD B1), PHILIPS 20PFL4102S/60 (Panel LC201V02 (SD)(D1)), PHILIPS 20PFL4102S/60 (Panel LC201V02 (CD)(B1)), PHILIPS 20PFL4112S/60 (Panel LC201V02 (SD)(B1)), PHILIPS 20PFL4112S/60 (Panel LC201V02 SD D1), PHILIPS 20PFL4122/58 (Panel A201SN02 V.5), PHILIPS 20PFL5122/58 (Panel A201SN02 V.5), PHILIPS 23PFL5322/58 (Panel T230XW01 V.3), PHILIPS 23PF4321/58 (Panel T230XW01 V.2).
The appearance of the power supply
Main features of the PHILIPS 20PF4110S device:
Installed matrix (LCD panel) LC201V02 (SD) (B1).
To power the backlight, a converter is used, combined with a power supply.
The necessary supply voltages for all nodes of the PHILIPS 20PF4110S TV are generated by the P2004471 power module or its analogs using IC_Power microcircuits.
MainBoard - the main board (motherboard) is a module 3139_123_60192, using microchips GM5221H-LF, SM5301BS, 1517AW, LD1086-10, TDA15021H1 / N1C91, 29LV040CQC-70G and others.
The UV1318S / A I H-3 tuner allows you to receive television programs and tune to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC201V02-SDB1
Type: a-Si TFT-LCD, Panel
Diagonal size: 20.1 inch
Resolution: 640x480, VGA
Display Mode: IPS, Normally Black, Transmissive
Active Area: 408x306 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 800: 1
Display Colors: 16.7M (8-bit)
Response Time: 12/13 (Tr / Td)
Frequency: 60Hz
Lamp Type: 6 pcs CCFL Without Driver
Signal Interface: CMOS (1 ch, 8-bit), 41 pins
Voltage: 12.0V
