Lg 32lc56-zc.aecvljg

[26fld745t]

Hello, hello,
here we go again.
Life´s Good, suggests the topic. Let´s see how this ends up. I have not taken this black beauty open yet, so can not tell if it contains Vestel or not :p According to Forum Search there is not a topic yet for this model, so i
thought i´d start one.

Symptoms are: it will not wake up from the stand-by- mode. I guess it has something to do with PSU. As this evening (it´s 0930 hours p.m. in finland) folds into night i´ll start by opening her up and take a look inside. Will post here when something turns up. At meantime, fire away what ever comes in mind!

best regards

I.A.

[26fld745t]

Re: Lg 32lc56-zc.aecvljg

Very viddy well.. It will not enter even the stand-by- mode. I hear faint and random "inverter-like" whining inside the TV. No smoke (yet), no bad smell. I´ll open the cover.

[tom66]

Re: Lg 32lc56-zc.aecvljg

Very common with this model is bad capacitors.

[26fld745t]

Re: Lg 32lc56-zc.aecvljg

Indeed.
At a glance, there are 5 bad capacitors (top is buldging). They are at the low voltage side of the PSU.

Some data extracted from the PSU PCB:

LG IT (Italy, perhaps?) Manufactured 06.12.04 Revision 1.0
P/N : EAY34795001
PCB : EAX32268501/8
LG IT PCB P/N : 2300KEG009A-F PLHL-T602A

INPUT AC 100V-240V~
50 / 60Hz. 2.5A

OUTPUT
ST-BY 5VDC 2.0A
ST-BY 3.4VDC 5.5A
19VDC 1.45A
12VDC 1.5A
6.5VDC 3.5A
P401~P402 980V~/108mA

MODEL PLHL-T602A

I wonder, why these things won´t ever burn a single fuse before this bad-caps-phenomenon takes place??

21 elecrolytic capacitors total.. Should i re-cap this whole PCB or just the buldging ones?

br

I.A.

[tom66]

Re: Lg 32lc56-zc.aecvljg

Can you show a picture of these capacitors?

Fuses won't fail when the caps fail. It's not as if the capacitors short out when they fail. That's rare.

[26fld745t]

Re: Lg 32lc56-zc.aecvljg

True... Of course i can, just a moment.

[26fld745t]

Re: Lg 32lc56-zc.aecvljg

http://aijaa.com/MujZuN

I think that You should be able to browse the whole dir @ aijaa.com via that link?

[tom66]

Re: Lg 32lc56-zc.aecvljg

They are very bad -- I would replace ALL of the capacitors on the SECONDARY side with high quality Panasonic FC, FM, FR.

[26fld745t]

Re: Lg 32lc56-zc.aecvljg

Thought so, i´ll start on searching some. To be continued...

[26fld745t]

Re: Lg 32lc56-zc.aecvljg

Sec. electrol. capacitors (105C) :

5 x 2200 uF 10V
1 x 2200 uF 25V
1 x 1500 uF 35V
1 x 470 uF 35V
1 x 470 uF 25V
1 x 470 uF 10V
1 x 47uF 50V
1 x 1uF 50V

Partco supplies Panasonic caps in finland, abt. 20€ order placed. Now i´ll just have to wait a couple of days.

[26fld745t]

Re: Lg 32lc56-zc.aecvljg

Well. That was it.
Today i got new Panasonic caps, soldered them to PSU and, *tadaa*,
it works! No smoke, no weird noise, no nothing extra. It_just_works,
as a TV should. Cheers!

[elviramjw]

Re: Lg 32lc56-zc.aecvljg

I have the same issue with the same board same DOM for the PCB.
LG 32LC52-ZCAEKVLMG TV (DOM June 2007) acquired for a tenner.

C202,206,217,221 2200uF 10V RAD & C210 1500uF 35V RAD all bulged
Will be replacing these and testing the other caps.

Results to follow soon