Lg TV Repair: Common Faults and Solutions.
Search: Lg
Results: 4834
Results: 4834
Lg Repair Guide: Common Issues and Fixes
Brand | Model | Fault | Detailed Problem | Solution | By |
---|---|---|---|---|---|
LG | 1470 | After changing fb, spots on the screen and unstable frame size | The image is irregular, darker than usual and the brightness/contrast buttons don't work (they don't work linearly. as I increase it it can increase/decrease the brightness/contrast). - the right part of the image has spots. - when I change the resolution or modify the image (for example, I am on a dark screen and open a completely white screen), the intensity of the image changes and the size of the frame too. I opened the monitor, the technician installed a Copeco 14023 flyback (correct for this monitor), but apparently he did not replace any other parts. Reverse the 2 wires on the outer coil of the fly-back. (the one wound on the ferrite) | ||
LG | 1470 | Does not control brightness | Well, the thing that kept me up at night is the c 919 470/16 volt electrolytic capacitor, in the power supply, after I checked all the components on the brightness line several times and found nothing abnormal. | ||
LG | 1470 | The flyback and components in the abl line were replaced but after turning on the monitor it does not display contrast and when turned off there is a bright spot on the screen | This monitor, when the fly burns out, has the habit of burning components in the abl line and sometimes it even makes a hole in the board and chars the tracks because that's where the problem was between the abl track and the ground, it was charred but I I had no idea that it was leading from abl to ground + or - 1 k, so I dismantled the track and made a wired connection and the monitor is working perfectly. | ||
LG | 1470 | When it received the video signal, it disarmed and had an amber LED. | Q905 shorted. I replaced the transistor q905, and the defect disappeared. | ||
LG | 1470 | Doesn't turn on, doesn't have a mat | Sparking in the tube. change flyback code 61742-2001 to ipeco code 14023. | ||
LG | 1465 DLS | Turns on, there is voltage at the power supply but the filament does not light up | For the filament to light up it depends on a high level on pin 17 of ic202 and this commands q918 which commands q920 which commands q919. Finding the defect in the flay black, I replaced it and the monitor worked | ||
LG | CB775C-NA | It kept blinking when adjusting vertical position | Change the tda4866j (ic601), of vertical deflection | ||
LG | 1470 | Inoperative. green LED lights up | Flyback | ||
LG | 1470 | Inoperative. green LED lights up | Flyback | ||
LG | 1470 | Inoperative. green LED lights up | Flyback | ||
LG | 1470 | Inoperative. green LED lights up | Flyback | ||
LG | CP-20B84 | Dead | Ci ta8808bn. | ||
LG | CP-20B84 | Dead | Ci ta8808bn. | ||
LG | CP-20B84 | Dead | Ci ta8808bn. | ||
LG | 29FX5R | Frequent burning of the horizontal transistor | X401 | ||
LG | CP29K30 | Does not tune channels | C102[47pf] | ||
LG | CP 20K42 | Normal image appears and goes dark | D502 | ||
LG | CP20B85 | Image shifted to the right. | Zener diode zd412 (9.1v) - change unconditionally. | ||
LG | CP-29K30 081D | Dead | Shorted diode d401 (ru4ds) | ||
LG | 29K30 | Dark bar on the left side of the image | D407 with escape |