LG TV Repair: Common Faults and Solutions.
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Results: 4854
Results: 4854
LG Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG | D30/3C | Dead | Cc503=100k cc504=100k cc505=47k | ||
| LG | FLATRON 563SL | Screen shaking | C 100u/16v altered | ||
| LG | 29C85 | Dead | R831 and r437, check high output. | ||
| LG | 29C85 | After 50 seconds on, the TV closes the vertical position, mutes the audio and turns off, remaining in stand by, no longer turning on. after a while off it starts working again | Cold solder. Check welding on all cis, transistors, connectors and high power resistors and the TV started working again. | ||
| LG | CI29H40 PC8KA | There was a bright white screen with flyback lines on this set. the a1 adjustment had very little effect | I found that ic901 tda6108jf on the tube base was faulty, pin 7 blue o/p and pin 8 green o/p both read s/c to ground. note: this chip was probably taken out due to the tube flashing over as in my case | ||
| LG | CZ-20E60 11.1 | Stuck in standby with no line drive | R410 o/c | ||
| LG | CF-28A50T PC-58A | Flyback lines on pic | Check resistor r351 in front of tda8350q. it should be 3.6 k. i replaced with 3.8 k and it worked fine. additionaly check: r708, fr704, fr359, q351, q345. if fault persists try replacing the tda8350q | ||
| LG | 21FB32 | LED stays on, but no image or sound appears | Ic 805 (se110) | ||
| LG | RP-14K40 | Power supply does not turn on | Ic501 * 1231cn | ||
| LG | RP-14CB20A | No audio | R624 - 22k | ||
| LG | 21M21MQ | TV turns on, works for a few minutes and then turns off. | R831(123k 1% tolerance) changed | ||
| LG | RP-20CC20 SC023A | White screen strobe effect | Replace cinescopio socket | ||
| LG | VARIOUS | Modifying r/c to access service modes | There is a service remote availiable but if you have a remote which uses an saa3010t ic , simply connect a tact switch between pins 1 & 11 to access the service mode . | ||
| LG | LV710 | Wont tune - "safe" displayed | Sus eeprom | ||
| LG | KE14U73 COMBI | Swirling lines & static pops on pic | Poor earthing of the deck to the screen large vcr screening can | ||
| LG | KE14U73 | St/by only | Ht present but no 8v supply to ic500 jungle chip pin 37. d850 in psu leaky | ||
| LG | CI21T24F | St/by only - red led lit no power to psu pri | Dry joints rl108 relay | ||
| LG | CI20E20 | Dead with strs5707 chopper chip & bridge rect s/c | Also replace 4 x elects in psu | ||
| LG | CI14B50F 11.1 | St/by only - no line dr | No 12v supply to line dr trfmr tr101. check back from pin 15 chopper trfmr - r410 0r1 o/c & dry joints chopper trfmr | ||
| LG | CF28C22F ETC | Field collapse | Fit mod kit kitpc33j (7 parts inc) |