LG TV Repair: Common Faults and Solutions.
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Results: 4833
Results: 4833
LG Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| TV LG | 21FD15 | This TV was completely inoperative. | Ic801(strw6753),ic 802(photo coupler),c809,c844 and zd801, 6.2v zener were replaced, and it was resolved. | bf.colatino | |
| TV LG | CP-14B86 | This TV has the standby LED on, when I turn the key on the LED goes off and comes on again, but you can see that it generates mat for a short moment the tube brightens and goes off again | This TV gave me a hard time, but I managed to solve the problem, after I had nothing left to watch I noticed that the tube's cannon was lit, but I hadn't noticed it before. | So I decided to increase the scrin adjustment and the bright line appeared indicating closed vertical, as my colleagues said, this TV likes to have a defect in the vertical, but it was not necessary to replace the vertical ci, as the defect was the open r313-82k. | bf.colatino |
| LG | CP-20B85 | Burning the horizontal outlet | Flyback | Replace | ELETROCLAUDIO AGUAS BELAS |
| MONITOR LG | 710E | This monitor arrived with a dark image. the scream and focus controls did not work. | I changed the flyback, now the controls work but the image is lifeless, like lack of contrast and dark | It was the lm 2476tb that was defective. | BF.COLATINO |
| TV LG | 21FJ6RB | This TV arrived with this defect of working with a normal image but without audio, it only had audio if you put it in a/v and turned on a DVD | Well, it turns on the a/v and audio comes out, it was obvious that the sound output wouldn't be burnt out, I checked and got to the q501 which was a c3198 and it was burnt out when the TV was replaced and it worked normally. | BF.COLATNO | |
| TV LCD LG | 42LC4R | Doesn't work. | Scheme http://www.4shared.com/document/9-jefbqq/lg_42lc4r-md.htm | Device resolved.parts replaced: u502 ice 3b1565j burst zd501 3v6 shorted r508 2r2 open secondary capacitors starting to swell, they were replaced. | BF.COLATNO |
| TV LG | 29FS4RL | This TV has +b high, 139v and it was supposed to have +- 126v, pins 4 and 6 of the vert output have +18, -18 confirming high fan; already check the primary power supply is normal 295v, and tsound is also a small stretch of the image hiding the broadcaster symbol | It was q830=431 that switches the power supply and it was bad. | BF.COLATINO | |
| TV LG | 29FS4RL | Cushion effect defect | The ci01 didn't appear to be cold soldered and that's when I made a mistake, I decided to resolder it and it ended up fine | BF.COLATNO | |
| TV LG | 21FJ6RB | This TV wouldn't turn on or even turn on standby. | Cause=ci 801 strw 6753. | Replaced and resolved. | BF.COLATNO |
| TV,LG 29 | RP29FA35A | Closing vertical, retrace lines on the top screen | Cold soldering in the circuit | Resoldering of all the capacitors in the vertical circuit solved my problem, thanks for the tip | jesus |
| LG | L1753TS | Doesn't start | Altered zener diode zd101 (3.3v) (very high leakage) and power supply capacitors. after replacement, monitor ok! | jrosivan | |
| LG 29 | RP29FA35A | Resoldering of all the capacitors in the vertical circuit solved my problem, thanks for the tip | |||
| TV LG | 21FX5RL/LD MC 059A | When it turns on, it is vertically closed and at the same time it turns off, returning to stand-by, keeping pressing the channel button to keep it on and you see vertically closed. | 47k r313 changed line 9v, ic301 - la78040n vertical changed. | Also c308 of 47μF - 16v, r420 of 240k, r408 of 75k | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| TV LG | 20K42 | Screen is dark, even with the screen adjustment open. After a few minutes it normalizes, sometimes it works well, but sometimes it goes dark again. | As I usually do on TVs over 4 years old, I resoldered the kinescope board, ci on the RGB, Y pins and the terminals of the wire that comes out of the motherboard (RGB) for the kinescope board | BF.COLATINO | |
| LG | 29FS4RLG 29FS4RLG | Heats horizontal outlet until it burns | Zd402 zener diode is shorted or leaking | Replace with 12v x 1w - also replace c402 (electrolytic 4.7mf) | ruberval5 |
| TV LG | RP20CC95 | Tv burning horizontal | Capacitor c 409 of 2.2 uf 160 volts, when changed it changes the frequency of the horizontal, making it not last more than 15 days | BF.COLATINO | |
| TV LG | CP29C85 | Defect: disarms | Solution :r437 - 48 k open | BF.COLATINO | |
| LG | RP20CC97 | Horizontal output shorted and fr403 open, after changing them it returns to burning. | Short fly-back, case resolved, but with dark screen without sound. ci501 broken. | SENPRETOR | |
| LG | 32LH20R | Nothing or LED turns on | R 501=read/or | Bruske | |
| LG | 42LG30R | Nothing or LED turns on | Q602 shorted, replace | Bruske |