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 | 32LM3400 | TV has 5v standby, when pressing the power key, it flashes twice as if it was going to turn on. it didn't have 12 and 24v | Was or ic503 (photocoupler) oxidized. | Manoel Damião | |
| LG | 21FU1RLG MC-059C | Normal alloy with a white stripe at the top of the screen. | Vertical | Changing the vertical stv9326 or la78040 doesn't work, putting in the horiginal which is the stv9326! | Sinailson furtado |
| LG | RP20CA10 | Doesn't call, just calls when he wants | Change cap on secondary power supply, c815, 1000x25 | DJ PITUKA | |
| LG | RP20CA10 | Doesn't call, just calls when he wants | Replace cap on secondary power supply, c823, 1000x25 | DJ PITUKA | |
| LG | 47LB7DF | Does not turn on, pfc circuit does not bend 400v. Vcc supply of cis u101 and u600 is low, causing the 400v not to double | Shorted components close to u501. | Replace of components: zd500 zenner 15v, smd transistor q501 "I took it from scrap from a similar PCI", cracked c509 smd. I didn't find the schematic for this power supply. | rafaelmoraes99 |
| LG | HT503SH | Just stand by and doesn't turn on | C934 1000mf x 10v on power supply board with low capacitance | Replace c934 | NEI |
| LG | 32LH20R | Blinking light bulbs | Remove wire (error) from inverter | Paulão | |
| LG | 32CS460 | Blinks the backlight a few times and turns off | Some burnt out lamp | Replace burnt out light bulb | Thiago MC Jaú |
| LG | 42PN4600 | Turns on, the LED just keeps blinking. | Money problem ysus | Replace the kit, turn it on and get a black spot on the screen, check r630 10r or 10Ω, good luck. | Eronaldo (erontec) |
| LG | 21SA1RL | Generates and cuts, high power supply | R-842, crossed, aq | julinho da eletronica | |
| LG | 21FJ6TL CW81B | Does not turn on, with hissing sound from the speakers, normal power supplys. | Faulty 9v regulator, IC804, only releases 6v on the second pin. | After changing the TV ok. | George Pontes |
| LG | 43LF5100 | No image or bluish image | Defect in the LED bars. | Replace led bars. The originals are no longer supplied by LG. However, the rules of the 43lj5500 can be adapted and it is very simple code: agm76149801 | rafaelmoraes99 |
| LG | 26LG30R EAX40043811 | Turns on, but no image (with backlight) | Q1101 (4925b) burned. I changed it and it started working again. | Just replace the q1101 close to the lvds connector. It can happen that the tcon burns out when this chip burns out. | Darci Denzer |
| LG | 32LV300C | Power supply does not turn on | Fb9101 c9118 e zd9108=16v | Replace and go to another | Gilvan Gregorio |
| LG | RP-21FB32 SC 023A | Locked on channel 3; locked keys; voltages ok | Eeprom | Rewrite eeprom memory | Fabio SOS ELETRÔNIOS@ |
| LG | 42LH20R | Backlight turns off after a few seconds, blinks and turns off | Setting up protection | All credits to filipe furtado, remove resistor r1042 from the main board, close to the power supply connector | Claudio Eckert |
| LG | 37LH20R | Backlight turns off after a few seconds, blinks and turns off | Setting up protection | All credits to filipe furtado, remove resistor r1042 from the main board, close to the power supply connector | Claudio Eckert |
| LG | 32LH20R | Backlight turns off after a few seconds, blinks and turns off | Setting up protection | All credits to filipe furtado, remove resistor r1042 from the main board, close to the power supply connector | Claudio Eckert |
| LG | LGP32F-12P | Dead power supply. input fuse blown. Tsound was also a short circuit in Q101. | Check/replace input fuse f101 - 3.15a, mosfet transistor q101 - mdf10n65b, ic pwm ic101 - ssc1a311, r106 - 47r smd, r107 - 10r smd, zd104 - 15v zener diode | Electrohd | |
| LG | 14SB 1BR MC 059D | Vertical closed voltages ok | Ic 301 saida vertical la 78040 | Replace ic 301 | AGILDO ANDRADE |