Lg Repair Tips

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Make	Model	Symptom	Problem	Solution	By
LG	21FX5RL	Power supply was for 110v and 135v	R815 changed		Jair : cap poço pa.
TV LG	21FD15	This TV was completely inoperative.	Ic801(strw6753),ic 802(photo coupler),c809,c844 and zd801, 6.2v zener were replaced, and it was resolved.		bf.colatino
TV LG	CP-14B86	This TV has the standby LED on, when I turn the key on the LED goes off and comes on again, but you can see that it generates mat for a short moment the tube brightens and goes off again	This TV gave me a hard time, but I managed to solve the problem, after I had nothing left to watch I noticed that the tube's cannon was lit, but I hadn't noticed it before.	So I decided to increase the scrin adjustment and the bright line appeared indicating closed vertical, as my colleagues said, this TV likes to have a defect in the vertical, but it was not necessary to replace the vertical ci, as the defect was the open r313-82k.	bf.colatino
LG	CP-20B85	Burning the horizontal outlet	Flyback	Replace	ELETROCLAUDIO AGUAS BELAS
MONITOR LG	710E	This monitor arrived with a dark image. the scream and focus controls did not work.	I changed the flyback, now the controls work but the image is lifeless, like lack of contrast and dark	It was the lm 2476tb that was defective.	BF.COLATINO
TV LG	21FJ6RB	This TV arrived with this defect of working with a normal image but without audio, it only had audio if you put it in a/v and turned on a DVD	Well, it turns on the a/v and audio comes out, it was obvious that the sound output wouldn't be burnt out, I checked and got to the q501 which was a c3198 and it was burnt out when the TV was replaced and it worked normally.		BF.COLATNO
TV LCD LG	42LC4R	Doesn't work.	Scheme http://www.4shared.com/document/9-jefbqq/lg_42lc4r-md.htm	Device resolved.parts replaced: u502 ice 3b1565j burst zd501 3v6 shorted r508 2r2 open secondary capacitors starting to swell, they were replaced.	BF.COLATNO
TV LG	29FS4RL	This TV has +b high, 139v and it was supposed to have +- 126v, pins 4 and 6 of the vert output have +18, -18 confirming high fan; already check the primary power supply is normal 295v, and there is also a small stretch of the image hiding the broadcaster symbol	It was q830=431 that switches the power supply and it was bad.		BF.COLATINO
TV LG	29FS4RL	Cushion effect defect	The ci01 didn't appear to be cold soldered and that's when I made a mistake, I decided to resolder it and it ended up fine		BF.COLATNO
TV LG	21FJ6RB	This TV wouldn't turn on or even turn on standby.	Cause=ci 801 strw 6753.	Replaced and resolved.	BF.COLATNO
TV,LG 29	RP29FA35A	Closing vertical, retrace lines on the top screen	Cold soldering in the circuit	Resoldering of all the capacitors in the vertical circuit solved my problem, thanks for the tip	jesus
LG	L1753TS	Doesn't start	Altered zener diode zd101 (3.3v) (very high leakage) and power supply capacitors. after replacement, monitor ok!		jrosivan
LG 29	RP29FA35A		Resoldering of all the capacitors in the vertical circuit solved my problem, thanks for the tip
TV LG	21FX5RL/LD MC 059A	When it turns on, it is vertically closed and at the same time it turns off, returning to stand-by, keeping pressing the channel button to keep it on and you see vertically closed.	47k r313 changed line 9v, ic301 - la78040n vertical changed.	Also c308 of 47μF - 16v, r420 of 240k, r408 of 75k	This email address is being protected from spambots. You need JavaScript enabled to view it.
TV LG	20K42	Screen is dark, even with the screen adjustment open. After a few minutes it normalizes, sometimes it works well, but sometimes it goes dark again.	As I usually do on TVs over 4 years old, I resoldered the kinescope board, ci on the RGB, Y pins and the terminals of the wire that comes out of the motherboard (RGB) for the kinescope board		BF.COLATINO
LG	29FS4RLG 29FS4RLG	Heats horizontal outlet until it burns	Zd402 zener diode is shorted or leaking	Replace with 12v x 1w - also replace c402 (electrolytic 4.7mf)	ruberval5
TV LG	RP20CC95	Tv burning horizontal	Capacitor c 409 of 2.2 uf 160 volts, when changed it changes the frequency of the horizontal, making it not last more than 15 days		BF.COLATINO
TV LG	CP29C85	Defect: disarms	Solution :r437 - 48 k open		BF.COLATINO
LG	RP20CC97	Horizontal output shorted and fr403 open, after changing them it returns to burning.	Short fly-back, case resolved, but with dark screen without sound. ci501 broken.		SENPRETOR
LG	32LH20R	Nothing, power LED OFF	R501 2R2/2W		Bruske