TV problem, Anyone help?
TV problem, Anyone help?
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Discussion

The Riddler

Original Poster:

6,565 posts

226 months

Wednesday 24th December 2008
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Hi all, we have a 42" Hitachi LCD HD tv, which will power up fine, with both picture and sound, after 1-2 minutes the picture will vanish, leaving a blank screen, but the sound continues to erm.. sound.

Has anyone had any experience with this tv? Would it be better off in a skip, or is there an easy fix?

Thanks.

spikeyhead

20,381 posts

226 months

Wednesday 24th December 2008
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Try some percussive engineering, it sounds like a dry joint.

Chim Girl

6,268 posts

288 months

Wednesday 24th December 2008
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I had the same problem with a Sony TV - actually there is a post on here about it, from aaaaages ago. As said earlier, suspect it is dry joints (some solder is cracked).



PS: I have a soldering iron if you need to fix it before Christmas.

The Riddler

Original Poster:

6,565 posts

226 months

Wednesday 24th December 2008
quotequote all
Cheers, is this a pretty simple thing to do? I have a soldering iron somewhere, so this may be the perfect excuse not to partake in christmas. smile

Chim Girl

6,268 posts

288 months

Wednesday 24th December 2008
quotequote all
The Riddler said:
Cheers, is this a pretty simple thing to do? I have a soldering iron somewhere, so this may be the perfect excuse not to partake in christmas. smile
yes Providing you have a steady hand and fine point on your soldering iron. You may also need a magnifying glass, depending on the size of the board. Having said that it is easy, I only tackled a hifi after the repair guy had shown me what to do when he repaired my TV.



69 coupe

2,459 posts

240 months

Wednesday 24th December 2008
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Take the back off, re-seat as many connections as possible and plug in and retry.
Worked on my CRT Philips TV I asked for advice on pistonheads and a bit of fiddling later saved me >£400 and a trip to the council tip.
My TV is still going great guns.

One poster replied
Philips TV 0 Fiddler 1 smile

didn't like the fiddler connotation but was OK in this context smile

Edit to add just spotted your username is The Riddler!
Riddler the fiddler biggrin
Go on make it happen



Edited by 69 coupe on Wednesday 24th December 19:05

mas99

4,924 posts

213 months

Wednesday 24th December 2008
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If you shine a very bright light onto the screen is theere any sign of the picture?

Did it fail straight off or was there a period of flickering/colour change?

LCDs are backlit with a fluorescent tube. Common problems are tube failure and the power supply to the tube failing - they use a very high voltage driver - do not piss about with them with power to the unit.

J500ANT

3,103 posts

268 months

Wednesday 24th December 2008
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scart lead?