Technical description and composition of the PHILIPS 20PF5320 TV, type of panel and applicable modules. The composition of the modules.
PHILIPS
Model: 20PF5320 / 58
Chassis / Version: LC4.1E AB
Panel: LC200WX1 (SL) (01)
Inverter (backlight): KSL-C200-E rev: 03 LC200WX1 6632L-0142A
Power Supply (PSU): PLCD150P1 3122 133 32707 (P2004301)
PWM Power: L6562D (PFC), TEA1601T (16pin), TEA1533AT (14pin)
MainBoard: 3139_123_60192 3139 123 60192 WK534.3
IC MainBoard: TDA15021H1 / N1C91 24C16WP gm522H-LF 24С32WP S4CEV1 V1.20 TDA7297D K9656L K3953L HC4053M 1575016L
Tuner: UR1316S / A I A-3
Control: RCFE05SMU00, IR: 3139 123 61891
Technical Specifications 20PF5320
PHILIPS 20PF5320
General recommendations for repairing TV LCD
Repair of all electronic devices, including the PHILIPS 20PF5320 / 58 TV, it is advisable to start with an external examination of its external and internal elements. You should also pay attention to the condition of the case elements, connectors, cords, loops and buttons. Sometimes, based on visible changes in the components of the device, it is possible to draw some conclusions and determine the direction of further troubleshooting even before the necessary measurements are taken. 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 assumptions about the causes and consequences of the malfunction.
In the absence of any signs of operability, when the PHILIPS 20PF5320 / 58 does not turn on and does not signal anything with the control lights on the panel, the power supply module 10358 PLCD150P1 is most likely to be faulty. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should always be started by checking the fuse and, if it is broken, it is first necessary to check the rectifier bridge diodes and the power switch for the possibility of an avalanche or thermal breakdown.
As a rule, the keys of flyback converters, which use an N-Fet field effect transistor on a separate radiator, or integrated with a PWM controller in a single chip, are reliable enough and rarely fail for no reason. The reasons for the breakdown of the key should be sought by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
Diagnostics of power modules with a Power Factor Corrector (CMC) is somewhat more complicated and requires a more detailed approach.
If, when you turn on the TV, the image appears and immediately disappears, or is initially absent when you turn on, but there is sound and other functions work, there is a high probability of a malfunction of the inverter (power converter for the backlight). In such cases, the lamps, the inverter and the common power module are subject to verification, in which the electrolytic capacitors of the rectifier filter supplying the inverter should be checked.
Diagnostics of the inverter KSL-C200-E rev: 03 LC200WX1 6632L-0142A can be difficult due to the protection that is organized by the designers to prevent negative consequences or fires in emergency cases, for example, during short circuits or open circuits in the lamp power supply circuit, as well as possible depressurization. To make the necessary measurements at control points or to take the necessary waveforms, repairmen have to block the protection circuits in order to be able to diagnose.
Turning off the protection for diagnostic purposes, it must be remembered that in this case there is a risk of failure of the power elements of the inverter. Upon completion of the diagnosis, all regular protection circuits should be restored.
If the motherboard is faulty, first of all it is necessary to check all the linear stabilizers or power converters of its chips, as well as, if necessary, update the software. Sometimes you can check the health of MB only by replacement. Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - TDA15021H1 / N1C91, 24C16WP, gm522H-LF, 24С32WP, S4CEV1, V1.20 TDA7297D, K9656L, K3953L, HC4053M, 1575016L, UR1316S / AI A-3 and replaced with new ones that failed and replaced .
It should be remembered! Attempts to repair the PHILIPS 20PF5320 / 58 TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
Service manual and schematic diagram 20PF5320/58 Chassis LC4.1E AB
MODELS: 15PF4110, 15PF5120, 17PF4310, 20PF4110, 20PF4310, 20PF5120, 20PF5320, 23PF5320
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 20PF5320 device:
The matrix (LCD panel) LC200WX1 (SL) (01) is installed.
To power the backlight used inverter KSL-C200-E.
The necessary supply voltages for all nodes of the PHILIPS 20PF5320 TV are generated by the PLCD150P1 power supply module or its analogs using L6562D (PFC), TEA1601T (16pin), TEA1533AT (14pin) microcircuits.
MainBoard - the main board (motherboard) is a 3139_123_60192 module, using TDA15021H1 / N1C91 24C16WP gm522H-LF 24С32WP S4CEV1 V1.20 TDA7297D K9656L K3953L HC4053M 1575016L microcircuits and others.
The tuner UR1316S / A I A-3 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC200WX1-SL01
Type: a-Si TFT-LCD, Panel
Diagonal size: 20.0 inch
Resolution: 1366x768, WXGA
Display Mode: IPS, Normally Black, Transmissive
Active Area: 443.609x249.408 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 600: 1
Display Colors: 16.7M (8-bit)
Response Time: 8/8 (Tr / Td)
Frequency: 60Hz
Lamp Type: 5 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
