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 | 29MN33D L31 | Out of tune | Voltage changed in cis ic803 of 3.3v and ic 805 of 1.8v. | After analyzing and even replacing the 3.3v and 1.8v cis regulators. responsible for the polarization of the seletronic, analyzing the circuit I saw that the IC800 DC/DC regulator from 19 to 5V was defective. Replace and re-tune. everything goes back to normal | ELETRONICA ESTUDIER-OLIBIO |
| LG | OM4560 | Sometimes it turns on, sometimes it doesn't, crazy functions | C 314 leaky, remove or replace with another | Abrstec | |
| LG | OM4560 | Sometimes it turns on, sometimes it doesn't, crazy functions | C 314 leaky, remove or replace with another | ||
| LG | 28MT49S | Doing the functions alone, increasing and decreasing the volume | 7aw smd transistor next to leaky button connector | Replace the transistor or remove it but the stand by LED will not work | Leandro Voss |
| LG | 42PQ20R | Works a little and disappears image | 10mf capacitor c507 with leak on the buffer board | Tsound are 8 identical capacitors in the bμFfer, replace them all | Eletrônica JJ |
| LG | 32LS3500 | N/works | Fuse, power supply mosfet | Replace do mosfet 10nm60 de 10a x 650v | Ogeid |
| LG | MS3052 | Sometimes it doesn't turn on | R10 and r11 changed | Replace both | Multimarcas/Acarí |
| LG | MCV1306 | No sound, graphics on the display do not operate and side LEDs | Electrolytic capacitors around ic 603 leaked | Changing the c655,c660,c657,c620,c640 and cleaning the sector with thinner or isopropyl alcohol | Abrstec |
| LG | 29LN300B-PC | Alloy has sound without image without voltage to power the LEDs | IC 403 CI-ACE IC701 CI-AV4506 EM SHORT | Replace for the original and run for the hug | Eletrônica Bastos Elísio Medrado BA |
| LG | 42PN4600 | Does not turn on or standby | Only 1.2v reaching the main board memory | 3v3 regulator ic600, located next to the tuner, looks like a transistor. | Eletrônica JJ |
| LG | 50PA4500 EAX647867701 | Ysus burned | 3 trans. irg7ic28u - q442, q401 e q402 3 trans. 30f124 - q403, q404 e q441 pode usar o 30j127 2 trans. tf8n60 - q556 e q509 1 trans. smk0825 - q557 2 diodo uf4007 - d562 e d559 1 resistor smd 330r- r576 1 resistor smd 2k2 - r577 1 zener smd 18v - d552 | Rui | |
| LG | 32LD350 | Noise on the tcon board appears to be at the power supply. | I washed the board and it was fine. | Eletronica EASI | |
| LG | OM4560 | Nothing turned on, tsound were 20 volts at the power supply output but when I pressed the button to turn on the power supply it dropped to 12v | Cause of the defect was a q920 transitor close to the oscillator ci switch without measuring | Eletrônica DIGISOUND | |
| LG | 32LK450 | Performs functions alone (call AV, menu, change channels, turn on alone...) | Touch keyboard. I couldn't find it to buy. | I disabled the keyboard by disconnecting pins 4 and 5 of the p2401 connector on the main one. Now it works but only for control. | Mau3000 |
| LG | RAD226B | Display and stand bay flashing | Shorted audio output (tas5612a) | Tecmaps | |
| LG | 21FJ6RB MC - 059A | Black band with white border on the inside or (lower) part of the screen | R - 313 of 47k changed or opened | Replace | Mauro Mascarenha Tel. (88) 981422821 Parazinho - ce |
| LG | 50PK550 | It doesn't turn on, without vs, without the power supply it doesn't turn on | The two pfc relays were not activated | Replace npn smd transistors q705 and q706 | LOOPTEL |
| LG | 42LB5600 | Every time it turns off it goes back to the initial configuration, to choose language, search for channels, region, etc. | I don't know if it's related but it came with burned out LEDs too. it may have had a power surge and burned out the LEDs and corrupted the memory data | Swap or rewrite nand memory ic102 | World TV - Sorocaba |
| LG | RP20CB20A | No audio at all from the speaker | R625 open next to the sound output | Eliel Magno | |
| LG | 32LH510B | Standby light on but not turning on | Ic 500 short | eletrônica newtec |