LG 32lc3r / Sound ok Back light ok / No Picture

**vinceroger69** · 09-15-2015, 07:12 AM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

on the tcon there will be a fuse it should have 5 volts dc on each side of the fuse use the tv chassis as a ground for your multimeter if you cant find it upload a good picture as we might need to zoom in too find it.

Edit this should help you
https://www.badcaps.net/forum/attach...7&d=1327107336

**Xcat2008** · 09-15-2015, 10:22 AM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

Hello. thank you for the Answer.. Well i know where is the Fuse

but i have only tested the condutivity not the Voltage.. But seems to be good...

I have replaced already the Voltage Regulator, but only if few hours i can test it on the TV... My Dbout was that, if i could placed the regulator with another with another reference...

The Man where i have purcased few minutes ago the Regulator told yes.. So i have place another more Strong, but of course with the sames Voltages.. The diferences is only on the mAh if i'm not Rong.

I'm almost going blind lol... Because from what i eve read in this forum, if is not the fuse can be the Regulator.. So i eve tested the fuse and it's ok, changed the regulator, will test in 2 hours or so.

**Xcat2008** · 09-15-2015, 02:18 PM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

Yes... Still the same... What do you guys suggest? Just buy a new/used T-Con board? Or make some more test's?

I have Sound, back lights Working, but no picture

Edit: I see a lot of T-con boards with the same Model number, but it's all the same? Because i see few Diferences between boards and not for the same brand... I Can buy for Example the Board T -Con from Samsung and will work on my tv?

**budm** · 09-15-2015, 02:41 PM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

How about the pictures of the T-CON board?
There are many Voltages on the T-CON board beside the 3.3V.
What happen if you have one ribbon cable between the T-con and the LCD panel connected one at a time?
The numbers on the barcode sticker are the one to use.
Is this your board?
http://www.shopjimmy.com/cmo-35-d003848-t-con-board.htm
The LCD panel made by CHI MEI?

**victor_cj** · 09-15-2015, 02:50 PM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

First check the 6V from PSU at P203.

**Xcat2008** · 09-15-2015, 04:15 PM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

@budm

There is Pics from my T-con Board:

And i will do that test in 5 mn...

@victor_cj

Thanks, i will do it also in few minutes.

**dick_barton** · 09-15-2015, 04:33 PM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

Just out of curiosity what is that mark on top of U5 as can be seen in the first picture? It could be the dimple to mark Pin1 however it just looks different to the others.

**Xcat2008** · 09-15-2015, 05:27 PM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

Well. I'm kinda Tired now of the TV, need to take a break lol...

But something happends...

As you guys know, i have changed the Voltage Regulator... The original is the ref: l1117lg-3.3

So i have today purchased another with the same specs.. The only diferent is he can take more mha... Ok..

At the fist time i have connected the T-con Board, and still the same... Like only Sound, but nothing about picture..

10 Minutes ago, doing this test "" What happen if you have one ribbon cable between the T-con and the LCD panel connected one at a time? ""

Half of the screen in this case left side was working.... And the right side just black...

So my first thinking, switch the ribbon cables... Now the 2 from the left go the right side..

After the change, the right side was working good lol And the left just black..

The only conslusions i can make... Is... The replace of the Voltage Modulator works... And i have for SURE at least 2 ribbons cables damaged ....

But is kinda strange, because the image is kinda sensitive, when i toucth the ribbon cables.. Sometimes only one the sides works, but when i toutch can turn Black again quickly...

Maybe because they are old, they are broke?

Where i can find cables to replace? To see if i can get my Tv Working...

Hope my English is fine

@dick_barton

Let me check more close, at this stage i need another coffe lol

Thank you guys.

EDIT: Almost Forgot...

@victor_cj There is no Cable on the P203, only in the others two.. But i have checked all the Wires and the Voltages are all goods... Only one cable where says "3v ON " show's me only 2v... If i'm not rong in the P202... Dunno is that can makes any diference... The others are all correct the voltages.

The Fuse from the T-con is 5V...

**budm** · 09-15-2015, 07:07 PM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

It sounds like you may have bad cables or bad contacts on the connectors, you can try contact cleaner on the sockets and on the exposed conductors of the ribbon cables.
At least now you are getting the pictures.

**Xcat2008** · 09-16-2015, 02:23 AM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

Originally posted by budm

It sounds like you may have bad cables or bad contacts on the connectors, you can try contact cleaner on the sockets and on the exposed conductors of the ribbon cables.
At least now you are getting the pictures.

Yeah, i have applyed in the T-Con Board the Spray cleaner, but not on the Contacts..

But with all this thing.. Take the ribbons to the place, taking them out.. I lost the Blue plastic from 2 ribbons cables

So 2 ribbons cables is almost useless.... Because without the blue plastic on the ends, of course it does not make contact, which should ..

I cant find here in portugal Ribbon flat cables

Any can show me where to find?

So the first thing now, is place new ribbon cables and clean the connections.

Thanks for the Help.

**Xcat2008** · 09-16-2015, 05:01 AM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

Anyone please confirm how many Pins, the Flat Ribbon cables have? 10? 20?

I find already where to buy, but i have the cables at home, so cannot see it right now.

And i want to buy it as fast i can to make my TV Working

Thanks

**Xcat2008** · 09-16-2015, 11:29 AM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

Ok.. I cannot Find the fat Cables... All day calling here in Portugal for companys, and nothing... I can see only from Hong Kong.. But that takes ages to come to Portugal...

Anyone know where i can buy it? ( Flat Cable 45 Pin 0.5mm )

Please help me on this

UK US hould be fine.. From Hong Kong or China takes like 1 mouth....

Thanks

**vinceroger69** · 09-16-2015, 12:30 PM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

where you have lost the blue plastic cant you find a thin strip of plastic the same size and thickness then just hold it in the correct plcae whilst you close the connectors etc, as im sure the blue part just makes the ribbon cable a little thicker so presses on the contacts more?

**Xcat2008** · 09-16-2015, 05:05 PM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

Originally posted by vinceroger69

where you have lost the blue plastic cant you find a thin strip of plastic the same size and thickness then just hold it in the correct plcae whilst you close the connectors etc, as im sure the blue part just makes the ribbon cable a little thicker so presses on the contacts more?

Yes i can.. but doing that already broke the plastic part which closes the connection...

Well, thank you for all the Help.. I will buy from the Chineses.. Will take like 1 mouth, but better latter than never..

Thanks.

**Xcat2008** · 09-17-2015, 04:08 AM

Re: LG 32lc3r / Sound ok Back light ok / No Picture

One question for the Expert's.

This T-Con Board is the same as this one? I mean if will work.

Main T-Con Board from the LCD ( Brand LG ):

Another T-Con Board ( Brand BUSH ):

Thanks

LG 32lc3r / Sound ok Back light ok / No Picture

LG 32lc3r / Sound ok Back light ok / No Picture

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