Technisson Lc-32IEF4

[Dyingsoul]

I got a Technisson Lc-32IEF4 s/n: 72s00602693 LCD TV from a friend, he told me its not working, not even powering on. He told me that he used it for 2 months and suddelny it just not powering on.

After the disassembly I've found something that I dont understand, take a look at the pictures. Do you have any idea what is that wire soldered on the board?

By the way, I'm sure somebody was already disassembled this TV because there were different screws in the case, some of the screws are missing too and some of the cable tapes are loosed or removed.

[Caleb]

Re: Technisson Lc-32IEF4

Well someone made a mess in there, If it was me I would unsolder the extra wire from that connector, then reflow that cap next to the end of that wire, looks like cold joints on both legs. Then start checking your voltages.

[Dyingsoul]

Re: Technisson Lc-32IEF4

Well, thank you for your reply, much appreciated!

I was just wondering, how could this TV work with that wire + careless soldering. Since I've never seen anything like this + I was unable to find any logic behind it I wasn't brave enogh to touch it. (Maybe someone was a genius or just a fool, can't decide ).

On the other hand, this is the first TV ever ever opened. However it is similar to computer displays, still a bit different. Could you tell me how can I check voltages? I have a really basic multimeter, not sure if I can do it with it. If it is possible, could syou tell me how and what should i measure? I'm attaching a pic of my multim. I'm quite beginner, till now I was only encountered with bad rectifiers, bad joints, resistors and caps only. Your help would be greatly appreciated!

It would be lifesaving if I could repair this TV.

[Dyingsoul]

Re: Technisson Lc-32IEF4

Well, great news: I did it, its working now! Unsoldered the wire, checked and strengthened the soldering on the 14 pin connector and the 4 caps. I think I did a great job!

Thank you again for the advice!

[Dyingsoul]

Re: Technisson Lc-32IEF4

Bad news... TV is bad again. When im connecting the power cable the led is red and turns to orange, no blinking. Cannot power on with remote controller or power button. Any idea?

Found this forum since its similar to viewpia, but it cant help since there are no C905 or 908 caps
http://www.avforums.com/threads/view...d-bust.825950/

[Caleb]

Re: Technisson Lc-32IEF4

I would check the startup cap on the power board as well as esr on all the output caps on the power board. If someone bodged up the repair that badly they may have tried to replace the caps on the power supply as well.