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 | CK56 | CD tray does not open client 8817 | Open 15k resistor R416 is connected to pin 21 of IC AM5890SL | R416 replacement | marcos melo cascavel ceara zap 85984138041 ajuda meu pix 76731162353 |
| LG | 32LB580B | Doesn't memorize channels sometimes it catches but with little time add client 8817 | Ci 2132mp 8-pin on the main board with voltage varying right 1.2v | 2132mp ic replacement without measuring | marcos melo cascavel ceara zap 85984138041 ajuda meu pix 76731162353 |
| LG | 50PN4500 | TV does not turn on, has normal ST BY, when activating power, the voltages appear normal on the main board for a few moments and then disappear, leaving just 5V ST BY, VS and VA voltages do not appear at any time, even when turned off the y,z sus plates. | Defective power supply board. | Replace ic801 -ncp1397bg, failure in this component causing the board to become unusable, check q601 and q602 together. | RNSPTEC |
| LG | CJ87 | It turns on normally, after it warmed up it stopped ringing and did not respond to commands, when it was unplugged it would not turn on again. | Crystal x500, to test I heated it with the station and the radio didn't turn on, then I cooled it with isopropyl alcohol and the sound worked normally. | Replacing the x500 crystal with a 24mhz one like my friend has many cell phone cards. | J&M |
| LG | 49LF5500 | Flashing the backlight | The supply voltages for the main PCI were normal. Even arming the power supply separately from the main one, the backlight continued to blink, making it likely a defect in the power supply PCI, the backlight was already discarded as it had already been replaced. | Defect in the inverter part of the power supply; We managed to solve it by making the following replaces: remove the following components: q805 and q802 (by removing these two transistors the TV will stop flashing the backlight). Now to reduce the power supply to the LEDs, it is necessary to remove resistors r836, r835, r817 and r818. | EC |
| LG | 43UN7300 | Turns on normally, but no image | Shorted screen | Look for the lockout point 6 on the left vcon, it is located on the cof 6 drive, the track on the left side of this point was cut, the screen turned on perfectly without any side effects. | Eletrônica Mirage |
| LG | RP20CC25 MC-059A | I'm sound | In my case, tsound was no sound, I changed some components and it didn't work | The defect was in the p2 jack being clogged, I cleaned the contact and unblocked it with the p2 pin and it worked. | Pamkar |
| LG | 29MN33D-PS | It doesn't turn on anything or standby. | Power supply input shorted. smd capacitors c718 or c803 both close to the 19v connector | Replace without testing for another identical one. | Evando Viana |
| LG | 32LN540B | Dead | Th101 | Substituir o th101(sd-15) | Multimarcas/Acarí |
| LG | CM8330 | No sound on just one normal pwm channel on both sides | Ic206 reference 4580m, defective. | Replace the same | BRITOSAT GNF |
| LG | CM8330 | S protection and sometimes cuts the sound. | Power supply defect, damaged photocouplers. | Replace all photocouplers. | BRITOSAT GNF |
| LG | CM8330 | D protection when volume increases | C724, c748 470nfx250v with changed value | Replace without testing; you must put it with the same value. | BRITOSAT GNF |
| LG | 60PB6500 | It doesn't turn on, the relay hits, but it doesn't turn on, without you, tsound is no 5v on the voltage regulators on the main board | MOSFET Q604 DMP2130L with low resistance, replace it. | Alessandro - evoeletronica.com.br | |
| LG | 42PJ350 | Turns on with everything perfect, works for a short time, turns off, and turns on constantly. | Check the insulation of the internal wires of the lvds signal cable, in my case the heat from the TV dried out the covering of the wires and it peeled off, leaving them shorting each other | Arrange for the cable to be replaced or, in my case, insulate, (I used hot glue) | Edfersom |
| LG | 26LD330 | Does not turn on, nor does the standby LED light up | F100 of 5a open and q601(13nm60n) shorted on the power supply board | Replace of the mentioned components | higorot |
| LG | M227WAP | 5 volt power supply oscillating between 13v and 5v power supply oscillating between 3.7v | Diode d102, 1n4007 next to the power supply photocoupler, you have to replace the bad contact inside it or open | alessiano gomes de alvarenga | |
| LG | RP-14CB25A MC 059A | Turns on the white image appears on the screen without characters washed image | Capacitor 321 of 1000uf x 25v close to the vertical ci | Assistec- Manari-PE | |
| LG | 29CC90 VARIOS | No audio | 24c16wp eeprom memory data corrupted | Reprogram the eeprom memory data | Cavalcante |
| LG | 29CC90 VARIOS | No audio | 24c16wp eeprom memory data corrupted | Reprogram the eeprom memory data | Cavalcante |
| LG | 29CC90 VARIOS | No audio | Rewrite the eeprom data or new memory recorded | Reprogram eeprom memory | Cavalcante |