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 |
|---|---|---|---|---|---|
| LG | 32LK450 42LK450 | Does not tune channels | Falta 5v no +b do seletronic | R466 r467 prox. ic406 | DsInfo&Eletro |
| LG | 49LJ5550 | Merged image crashing with 1 line going up | In my case, I just changed the tcom and went for the hug | Eletrônica moura trindade | |
| LG | 26LD330 | No audio | Factory reset | Eletrônica power saquaçú | |
| LG | 32LS3400 | Doesn't start. 3.5v low voltage | Q502 transistor smd ktn2222as | Rafiuski86 | |
| LG | 42LG30R 32LG30R | Turns off by itself, sometimes it doesn't turn on, sometimes it gets a greenish screen, it makes noise from the speaker and turns off. | It may be caused by several possible problems, carry out the following procedure to resolve and avoid a possible return. | Check the power supply and inverter board for swollen capacitors and replace them. Remove the power supply components: c108, zd111 and zd112. Also at the power supply, replace the 11k resistor r128 with a 15k or 18k one. On the main board, replace the SMD electrolytic capacitors that are close to the processor and RAM memory with values of 100μFx16v and 10μFx16v. Clean the main board well on both sides with thinner or isopropyl. resolder all fets, transformers and heatsinks on the power supply | GABSENS |
| LG | 42LG30R | Turns off by itself, sometimes it doesn't turn on, sometimes it gets a greenish screen, it makes noise from the speaker and turns off. | It may be caused by several possible problems, carry out the following procedure to resolve and avoid a possible return. | Check the power supply and inverter board for swollen capacitors and replace them. Remove the power supply components: c108, zd111 and zd112. Also at the power supply, replace the 11k resistor r128 with a 15k or 18k one. On the main board, replace the SMD electrolytic capacitors that are close to the processor and RAM memory with values of 100μFx16v and 10μFx16v | GABSENS |
| LG | 32LN5400 | Does not turn on the LEDs | Does not turn on the LEDs | Robson | |
| LG | 32LN5400 | Does not turn on the LEDs | Does not turn on the LEDs | Robson | |
| LG | 24TL520S-PZ | Replacing the mainboard and getting a service mode message. | Main board nova | The original command does not resolve. Perform the operation with the an-mr18ba model command (https://www.factoryreset.tv/reset/lg-24tl520s-pu): https://spareparts.pt/pt/produtos/comando-smart-magico-tv- lg-an-mr18ba?gclid=cjwkcajw6raybhb7eiwabge5krp2sd2l4zxgbekl-nz3knoc5otlhw_6ddmhmrjvzjlmw67wsbnk_xoc41oqavd_bwe | Neu |
| LG | M228WA M228WA | Does not turn on, no standby. | Zd101 changed, it was not shorted, but not behaving as a diode. | Changing the zd101, which when measuring on the diode scale leads on both sides, and measuring low resistance, replace with 1n4746 18v zener diode, the pwm vdd appears again and the monitor is ok. | MARCO BORSATO MEDTEC INFORMATICA |
| LG | 32LY340H | Doesn't start. only stand by LED on | Heat bgas with thermal gun | Eletrônica Pauly | |
| LG | LM-U550A | Turns on but no sound comes out, the +32v power supply doesn't work | Change photo coupler pc901, tl431 ic949 and place a 1mega resistor on pins 1 and 2 of the photo coupler | Rodrigo cofferi | |
| LG | 42LC4R | Everything works except the backlight. lamps do not light. | On the power supply/inverter, check the 1uf/400v capacitor in series with the lamp inverter transformer. | Replace the capacitor. | NelsinhoPira |
| LG | 50UK6510PSF | Reduce LED current, | Current between 420ma drops to 370ma, voltage also drops from peak 140v to 139v, operation 145v to 142.7 | Remove the smd resistor r809, to reduce it further you have to replace theΩ of this line from 1.6Ω to 2Ω or more | lucian oliveira 61991271532 DIGITAL TECH |
| LG | 50UK6510PSF | Blue image | LEDs with broken phosphor layer due to heat, replace LED bars | lucian oliveira 61991271532 DIGITAL TECH | |
| LG | 32LN570B-SA | All power supply output voltages changed. | If r205 changes below the nominal value, the output voltages will lower their values. in this case r205/120k was measuring 95k. | Replace r205 with correct value. stabilized power supply and TV | IZEletrônica |
| LG | 21FU1LR CW18A | No sync with black and white stripes | R 512 22k resistor connected to pin 19 of the processor | Replace | Mauro Mascarenha Tel.(88) 981422821 |
| LG | 21FU1LR CW18A | No sync with black and white stripes | R 512 22k resistor connected to pin 19 of the processor | Replace | Mauro Mascarenha Tel. (88) 981422821 |
| LG | 47LM5800 | Does not turn on without 12 and 24v output | C113 221 1kv exhausted, does not generate voltage on pin 6 of ci l6599 | Eletrônica JJ | |
| LG | DH4220S | It makes noise when inserting the disc and when ejecting it runs at high speed | The metal ring that goes on the spinner motor pulley comes loose and is attached to the upper magnet | I glued the metal ring over the pulley again and it solved both problems | Sidnei |