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 | 22MA33D-PS | TV inoperative, nothing turned on! | Smd 716 capacitor, close to the speaker connector, shorted...after it was removed, the TV worked...replaced it with another | Williansbill | |
| LG | 14CB25 | It came with a half-height vertical and did not memorize after updating the data | Rectifier diode d 22 and capacitor 100uf 10v c 40. on the EPROM side | JR Alagoinhas BA tec | |
| LG | PA4500 PB 21A | Burning components | TV schematic for possible troubleshooting | Hernany | |
| LG | M4214C-BAJ.AWZMLJZ | Does not turn on, fuse in the middle of the board is open and 2 diodes are shorted. | Replace of shorted diodes in position d502 and d503 close to the relay. put diode mur460 or larger. | rafaelmoraes99 | |
| LG | 42PJ350 | Does not tune channels | Replacing the 20r smd resistor r-643 which is close to the ic-602 | On some devices it is under the glue on the hdmi connector | Pedrinho |
| LG | 32LS3400 | Connect the plug to the socket, the voltages are normal, it turns on and has audio but the screen does not light up. | The voltage 3.3v, 12v, 24v are normal, the voltage of the LEDs starts with 140v and drops to 24v. | Check the LED bars, one of them may be defective, a burnt out LED, replace it and it will be normal. | Eronaldo (erontec) |
| LG | 32PC5RV | Turns on, but the power supply mosfets q602 and q603 were getting very hot until they burned out in 20 minutes | Shorted diode and open resistors | Replace d603 r602 and r603 | LOOPTEL |
| LG | 22MA33N-PS | Doesn't turn on anything, no stand-by. It has almost all voltages, but it lacks 12v for the dipslay. | Bga | Reballing lge2121, solved it the first time, before stopping turning on the TV it showed artifacts in the image etc. With this we went straight to reballing. | |
| LG | 21FS4-RLG | Buzzing, hissing (particularly low, but audible) | Possibly the problem is on the kinescope board, possible cold soldering and poor contact in the sockets | In order of priority; dismantle the socket from the tube, clean it to eliminate any oxidation or dirt, redo the cable that comes from the flyback to the socket (cut/eliminate and strip, only the part that is inserted into the socket), finally check the welds on the board to the look for any cold welds. | Thiago |
| LG | 20CD2R-LD MC-059A | Reduced vertical, +/- one finger at the bottom and top, in service mode had no effect | All voltages were ok, after a lot of trouble, I found the r303 changed to 9 homes replaced i | Thank God it was perfect, go for the hug | G.G eletronica |
| LG | 32LS3400 | Turns on, then LG appears and then turns off, leaving the sound | Power supply capacitor 1500uf/10volts position c201 power supply board | SANDRO VIEIRA | |
| LG | 14SB 1RB LEITURA SEM CONDIçõES | Doesn't start | Causes resolution | Borjao | |
| LG | 49LB5500 | 12v low and does not stabilize | Resistor smd r126 100k aberto | 3R | |
| LG | 42LE5600 | TV turns on, no picture, backlight on. | Cold soldering | Resolder the ic1000, ic100, ic9001 and receive the money from the customer | Fabrício Reis |
| LG | 42LH20R | Only standby LED is on, no functions | I1007 regulator h, zv rom | Ci replace | Reparatech |
| LG | LHD625 | It stopped completely, it won't start. | D953 (sr306) shorted. | SERVITEC Quixadá - Ce | |
| LG | CM9730 | No power supply sound missing voltages +35 and -35 pfc out with 178v | Changing the 3 1m resistors, tsound is no point in measuring, you have to change r917, r918 and r919, I changed them and the power supply worked | Alemao | |
| LG | 42LS4600 | When turning on the LED flashes but nothing works | When analyzing the power supply voltages, it did not have 12 and 24 volts, a low pfc power supply with 325 volts wsound it should have been around 380 volts | Replace capacitor c603 on the side of diode d602, it had a loss of capacitance | PROTEC ELETRÔNICA |
| LG | CM4350 | No sound. 5v normal but 12v and 28v appears, but then drops | R709 (3r3) that feeds the open output switching. | Tecnoprom | |
| LG | 29FX5CL | Turns on with the image closing on the sides and turns off obs power supply +b varying 110v to 90 | Tl431 | EletronicaArni L.Leal-sc |