TV Repair: Common Faults and Solutions.
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Results: 87413
Results: 87413
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG | CM5660 | Doesn't turn on, power supply ok | Crystal X501 24Mhz, just replace. | Eletrônica JJ | |
| LG | CJ88 | Doesn't turn on | Cristal x500 | Replace the crystal, it can be the 2-legged one, but on the board, solder pins 1 and 4 | Andrei |
| CENTURY | MIDIABOX B5 | Receiver does not turn on, without power supply to the power supply secondary. Secondary diode D46 leaked, replaced, device worked. | Diode D46 | Renne | |
| SAMSUNG | UN50NU7100G | Backlight on but no picture | Short display | I isolated 10 routes, from 10 to 20 vcon on the left, it worked perfectly. Good luck! | Jhone eleetronica |
| SAMSUNG | 40H5103 | It turns on, after a few minutes, turns off and locks the standby LED. | Q207 (1E NPN), | Replace... | joaomvjr |
| MULTILASER | TL038 P75-M8V6.4 | doesn't start | Primary power supply burned out, difficulty with electrical diagram, c.i. PU2 burnt out | Several tests with similar c.i. I discovered LD5530 works perfectly, check photocoupler and TL431 or AZ431 also shorts out | JhonatanSG |
| PHILIPS | 32PFL3018/78 | TV doesn't turn on | TV TURNES ON BUT STAYS ON STANDBY FLASH MEMORY WITH COLD SOLDERING OR REPLACING U04 MEMORY | Fixing the welding defect solved the problem. | DINIZ16 |
| LG | OM4560 Audio Device | Dead | 220k resistor in position R960, connected in open series. | Measure and replace. And run for the hug. | JC Eletrônica Cícero |
| PHILCO | PTV32D10N5SKH LD | turns on, after some time, turns off 12v power supply, voltages remains low and oscillating | PD406 diode in primary power supply | replace diode for diode UF4007 | LUIZ VIDEOTEK |
| SAMSUNG | UN65MU6100 | Does not turn on, no standby | MOSFET REPLACEMENT MMF60R360P | I replaced the fuse and the MOSFET. | ANDRÉA GARCIA |
| LG | 42PQ30R | BURNING R729 | REPLACE Q21 AND CHECK C503 | HELDER | |
| PHILCO | PTV55U21DSGWNC | CURRENT REDUCTION LEDS | REMOVE RESISTORS 116,117 AND 118 | reginaldo moronte,eletronica junior caldas novas | |
| PHILIPS | 32PFL3404 | relay, 24v and 3v3 power supply ok and no action, no stand by | oxidation, general cleaning | mainly from below the processor chassis | Marcelo Schmaida |
| SAMSUNG | CL21C650ML | Does not turn on and does not generate discharge | Transf. t401 broken wire | Test before replace | Eletrônica sena |
| LG | 32LK611C | Remote control inoperative. I tested 4 different controls and 3 function/sensor boards (IR sensor) | Defect in component VA4002. It's right on top of the power and Wi-Fi flex connector on the left side. | Remove it. As I didn't find a schematic for it, I don't know which component to put back. | Mateus P&CELL |
| SAMSUNG | PL43E400 | VA and Vs voltages drop slowly when turning on the TV | 1k trimpot, located on the altered Ysus board | Just replace the trimpot | Luiz Paulo |
| SEMP | L43S3900FS | standby LED flashing green, does not turn on | V751 shorted 200v x 9A | Robusto53 | |
| AOC | LC32D1320 | Screen blinking | Burst capacitor 450 v 100uf found | Replace with a 450v 120uf | |
| PANASONIC | TC-37LZ85 TC-37LZ800 LH71 | The TV responds to the initial on command but turns off after a few seconds. | Check F1 in T-CON and IC7001 in TNPA4467 | AdamRep | |
| ISIMPHONY | LC37IF80 LK-PI400106A LK-PI400106A | TV turns on but no picture | Check C34, C36, C41, C42, C43, C44) | AdamRep |