TV Repair: Common Faults and Solutions.
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Results: 87505
Results: 87505
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| PHILCO | PCX5600 | Does not turn on, low battery | It turns on, but as it was out of battery it then turns off... no signal when connecting the charger cable | Replacement of the power supply board Photocoupler (U3), and replace of the SR3100 diode (D6). | Innovast |
| SAMSUNG | CL14C600KJ | The picture only appears when ajust screen level | One of the rgb Zener diodes | Francisco Alves Ferreira | |
| PANASONIC | TC-L42E30B | Turns on with a dark picture on one side and turns off | Defect in LED buses and inverter board | replace the LED bars, in my case tsound was also a problem with the inverter, I solved it by re-soldering all the resistors on the inverter board | ITALOPACZ DOORNEL |
| SAMSUNG | PN43H4000 | Does not turn on, voltages appear and drops | C5802, (22uF x 50v) with low esr | Stiltec | |
| SAMSUNG | QN55Q60AAG | Flashing screen and with stripes | Shorted CKV line | remove the 10 CKV resistors on the left side of the display, it worked perfect | ITALOPACZ DOORNEL |
| PANASONIC | SA-AKX710 | The device turns on, lighting only the colored LEDs and then turns off. | power supply, SMD diode (with flashing) connected to pin 15 of IC1501 | Diode replacement. NOTE: I didn't find the specifications for this diode, I put a board cutout on it and it worked. But based on the characteristics of wsound it is positioned in the circuit and the diode impedance test, I came to the conclusion that it is a fast diode, with a higher voltage and is not a schottky. If anyone discovers a specific diode that is correct, please repost a tip informing us to help everyone. | Gênios Eletrônica SJ |
| LG | 42PC5RV | No sound/no sound | Capacitor c824/c318 | Just make the replace! And left by; barbieri | Cleber |
| ACER | ED240Q | LEAGUE WITHOUT picture | 12V DISPLAY LINE SHORT | D201 DIODE ON SCREEN SHORT AND FUSE CLOSE TO 3A OPEN. | TECNOBRU SBC |
| LG | 42PJ350 | Does not tune channels | 22Ω resistor connected to pin 71; from IC 602 or the bad IC itself, in my case it was the IC | Replacement of IC 602 or resistance connected to pin 70 | Cabeça |
| PHILCO | PH20U21D | Turns on but the picture remains dark LED voltage low at 23.4v | UP401 OB3350/So-8 | replace the LED IC | RV ELETRONICA GYN |
| LG | 32LC3RA | Turn on picture on AV failing, HDMI failing, audio failing | power supply | Capacitor 210, cap 680uf, replace directly, it can only be resolved with Tarcisio's tip. | Fernando |
| SEMP | LE4056 | turns on backlight but does not generate 12v, continues with 6.8v | transistor smd vw953 aberto | replace it | BARBADINHA |
| PHILIPS | 42PFL7007 | does not turn on at 3.3v from the power supply | q301 kst2907a defective | resistronic resende | |
| PANASONIC | TC 32A400B v320bj7 | League without picture | Only with VGL, without VGH and other voltages | VAA line showing low reverse conduction (resistance). Leaking CD19 capacitor. | Casa do Computador Muriaé |
| PHILIPS | 32PFL3606 | Does not start, dead, with 3V3 of the STB | 12V power supply, 24V did not work, L6599 replaced, PFC was also low, I removed and cleaned the glue from the reference resistors and it stuck at 390V. | Davi.sls | |
| PHILIPS | 58PUG6654/78 | backlight access without picture | shorted capacitors on vcon | c95 left side of the vcon and c56 right side | DoorneL |
| PHILIPS | 58PUG6654/78 | backlight access without picture | shorted capacitor on vcon | c56 short right side of vcon | DoorneL |
| SAMSUNG | LN32A330 | Doesn't turn on - totally dead | PSU Dead | Power Supply Board Resistor 10Ω 2W RRB806 Open - replace and run for hug. | Paulo Braz - Braz Reparos |
| LG | 32LB550B | No picture and picture with white spots in the positions of the LEDs. | Replace LED busbars. | New LED bars and reduction of current in the LEDS, remove R816 and R817 close to Q801. | TV Eletrônica |
| SAMSUNG | PL43D491A4GXZW | Totally inoperative | No voltages on the power supply board, broken J819 jumper and damaged tracks. | Old jumper removed, tracks reconditioned and new jumper reinstalled. | TV Eletrônica |