LG TV Repair: Common Faults and Solutions.
Search: LG
Results: 4834
Results: 4834
LG Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG | 29CC9 | Red image | Eprom | <small>This email address is being protected from spambots. You need JavaScript enabled to view it.</small> | |
| LG | 42LG30R | Turning off by itself, sometimes the sound fails, disconnecting the speakers, it stops turning off. | Replace without testing, c1110, c1118 and c1128 | Miratec Eletrônica | |
| LG | 55SL80YD | Turns on with no image and the LCD lamps start blinking | 10 micron capacitor shorted on the LCD board | Disconnect the flat cables from the LCD and test, if the lamps remain stable, reconnect one side and test, the side that gives the defect, test the capacitors on the LCD board, normally those larger than 10 microns short out and cause this defect | Djalma Moreira |
| LG | 52LG50FD | White image, failing. | Cold shoulder and bga | Reflow na bga. ic100 | CELSOKAYRAN |
| LG | RP-29CC90 | Does not adjust the width ew | Ic302 kia4558, 8 pin conventional | Replace ic | jositecalves |
| LG | CP-15Q90 | Dark image without contrast | D502 | Ok | Video som |
| LG | L173SA | Doesn't work, dead power supply | Power supply with swollen capacitors and the p6ke10a zener with leakage | Replace zener and check resistors r224(470kω) and r223(22kω) | Mário Martins |
| LG | 15FG5RG MC-059D | Tv turns on stand and turns off it doesn't turn on with +b sclecai on 2 transitor after a lot of work I heard the tip clair | And it really was the c1000 n 10 vlts | So it was completely shorted. | luiztvsom |
| LG | RAT376B | No audio | Zd905 20v | Replace without measuring | eletronica tape video |
| LG | 32LG30R | It turns on and when it turns off it doesn't turn on again | Removed protective components | Done according to previous tips, removing components c108, zd111 and zd112, and replacing r128 with a simple 15k resistor | riconsentino |
| LG | 42LH40ED | Power on, panel access, no image | Cold shoulder and bga | Reflow na bga. ic100 | CELSOKAYRAN |
| LG | 37LD840 | Standbay LED on, but does not turn on | Defective main board, cold soldering on the bga. | Reflow na bga. | CELSOKAYRAN |
| LG | 29FS4RLG | Blurred image at the bottom white stripe below opening very slowly | Replace capacitor c 419 -1000mf/25v | Worked with all standard screen | SR LUIS CAMPOS DOS GOYTCAZES, ELETRONICA NOVA CIDADE LUZ |
| LG | 21FU4RL | Normal image then disappeared, tsound was just a noise drizzled on the screen as if it had no synchronization | R114=30k open | I replaced it and the image came back normal | Antonio Carlos (Eletrônica Renascer) |
| LG | 21FU4RL | Normal image then disappeared and tsound was just a noise | R114=30k open | I replaced and ran to another one | Antonio Carlos (Eletrônica Renascer) |
| LG | 24MN33D | Doesn't start | Diogo smd position d710 is close to the power supply connector! | Vital eletrônica hawai12 | |
| LG | 14SB1RB | Replacement of the fly back bsc25-n0874, with the fly back 6174v-60006h (v) (w) | This replacement can be done without much problem, if you place the fly back 6174v xxxx you may experience a small deficiency in the vertical height, how can you proceed to eliminate this problem. lift the fr 301 that is connected to pin 6 of the fly back and add 04 turns to the fly back ferrite and connect these ends to pin 6 and the other to the fr 301 fuzistor, and run for the hug. | Eletronica Tv color Videira sc | |
| LG | RP21FD10 | TV with stand by blinking. | D810 open. After changing, the LED stayed on, however, when I pressed the power key or channel + and channel - the TV did not turn on, so I analyzed the power line and found the c826 de2200ufx16v with low capacitance and it was just a matter of changing it and it started working again. normal. | Another xausabde stand by led off or flashing is the control's infrared receiving photodiode open or shorted, so do as indicated and move on to another | Jailson Lima |
| LG | CM8440 | Volume above 30 the audio stops for 7 seconds and returns | Pfc voltage is 380v, but it only had 364v, I found the smd resistors (r917, r918, r919) changed, the 3 are 1m | I replaced the 3 1m resistors, in my case, this solved the problem. | C-audio eletronica (SM-AL) |
| LG | 32LK330-SB | Tv was admitted, coming from another assistance wsound the t-con.tv board had been condemned to be completely inoperative! When opening, I disconnected the flat (pci main/t-con) and the TV turned on, tsound was sound but, of course, no image. the t-con fuse was open, when replacing it, it burned again... carrying out a quick visual inspection and continuity test on the smd capacitors, I checked the capacitor in position c31, in the dc/dc circuit (t-con ) shorted. | I removed the capacitor and replaced the fuse. The TV turned on again and had no problems. I chose to leave it without the capacitor under test and it continued to work perfectly until delivery to the customer. A big hug to everyone and don't forget to post repair tips, this is one of the best tools for the technician! | Removal of capacitor c31 on the t-con board (dc/dc power supply), shorted smd. circuit worked fine without it! | AnisioH |