Lg TV Repair: Common Faults and Solutions.
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Results: 4834
Results: 4834
Lg Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG | CP 20 A 70 | Inoperative, shorted horizontal output transistor | Capacitor c 407 (1 u f x 160 v) with loss of capacitance or high esr | ||
| LG | CP 15Q90A | Inoperative, LED blinking | Horizontal output transformer | ||
| LG | 29C85 | Poor focus | Horizontal output transformer (fly back) faulty | ||
| LG | 20B84H | Does not tune the channels | Resistor r 13 (4.7 k) open | ||
| LG | 14B86BR | Power supply turns on and off | C-813 shorted | ||
| LG | 14B84H | Dead | Resistor r 802 (2 k) open | ||
| LG | 1470 | Pad width and adjustment controls inoperative | Transistor q 709 leaking or shorted | ||
| LG | STUDIOWORKS 55I | Red image | Cold solder on the video board | ||
| LG | STUDIOWORKS 440SI | Inoperative, LEDs flashing | Flyback | ||
| LG | 1470 | No image after flyback change. high voltage ok | Check c723, r742, r723 and q711 | ||
| LG | 1470 | Inoperative. green LED lights up | Flyback | ||
| LG | 1470 | Inoperative. flyback and tr horiz output ok | Check r912 and r913 | ||
| LG | 1470 | Image too wide | Check q709 and d708 | ||
| LG | 1470 | Unstable image after flyback change | Reverse the wires that run from the flyback to the power supply |