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 | 20CB20 | Does not tune in to any channel (no tune) | Substituir tuner (varicap) | TecVídeo | |
| LG | 20A70 | Torrando saida horizontal | C 407 | endrew | |
| LG | RC20CC20 | Rocky and dark image, screen does not work | Canhao (rk) abreto | Replace the trc | endrew |
| LG MONITOR | L1715S-N CL43 | Burned fountain | R111 very close to pin 1 of u101, wsound 300v is present; enabling the arc. | Substituir: u101(fan7601); r111 (0r56/2w); q101 (7n60b);f101 (3.15a/250v);r102 (1k-smd); d103 (1n4148-smd). isolar e afastar a r111 do ic. | jose luis calcada |
| LG | CP29Q50 | It only turns on with sound and turns off after 5 seconds. | Cold solder 120v pin on p11b. | bobra | |
| LG | CP29Q50 | Image goes up and disappears | Cold solder on q405. | bobra | |
| LG | 29FX5CL CW62A | Dark stripe on the left side and excessive width | R412 (7k5) open | ARAUJO | |
| LG | 29C85 | It turns on normally and suddenly for 2 seconds it forms horizontal stripes and multiple images, and turns off, all very quickly. | With a magnifying glass I looked at the horizontal and vertical circuit, looking for anything with cold soldering or broken tracks, then I found a fault in the connection strip for the vertical circuit, fixing the fault it worked without any problems. | My tip is to always pay attention to the image or signs that indicate and help identify the sector wsound the defect may be | Emilio C.A.A |
| LG | CP29K30A | It doesn't turn on, nor does the standby LED, and the T802 power supply transformer (6174vmcb01r) keeps clicking like the ticking of a clock. | The problem was the horizontal output transistor was shorted, this caused it to not turn on even in stand-by and the power supply kept clicking like a clock ticking, because it tried to turn on the power supply and it shut down. | I solved the problem by replacing the horizontal output transistor q401 in the case of my TV it was 2310ht but in the schematic it was like d2581. | ronsoares |
| LG | TODAS TVS 21 E 29 | No image | Tube with shorted screen | Measure and see if the screen voltage is at 0v, if so, remove the screen wire from the tube PCI with the TV turned on, and increase the screen on the fly back to the maximum and then give several touches with the screen wire at the point wsound it was removed, I have solved many cases like this | MANINHO |
| LG | 700S -CB777G-NE | Nothing happens (has normal supply voltages) | C954 disabled | Replace the same with another (1000μF 10v) | cardosojp |
| LG | 42PC1RV LG | It turned on and off by itself, the menu appeared and disappeared | TV control board corroded by humidity, strange as the other boards are in perfect condition. I think it was a lack of protection of the board by the manufacturer (I have a photo) | Luiz | |
| LG (DVD) | DV8921N | No video | Did not have the brand logo | Eject the drawer and press stop for 5 seconds. OK. | Clayton |
| TV LG | RP29FA30A | Half luminance | Replace q509 really good replace | rantonio12@ | |
| LG | PR14CB20A | No contrast control | D502 shorted | In my house it was d502 short | haecio |
| LG | RP-29CC90 MC-049A | It turned on but the image didn't appear but the tube filament lit up | The cause was the problem tube | The tube was replaced with another | paulosergioeletrico |
| LG | 710E | Dark image | C 316 line of g2 (kinescope plate) | AdrianChapadão | |
| LG | CE-29Q121P MC993A | 140v at b+ no image no high sound ok high | C440 broken | Tv ok | jvidal |
| LG | RP 21FB 32 | Turns on and off after a few minutes | Change the (75k) resistor that goes in the abl for one (100k) and can deliver it to your customer | rhaus | |
| LG | STUDIOWORKS700E | Lack of synchronism, horizontal lists | Resoldering the transistors in the power supply region | Cleber |