Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

 
 
LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #1   Report Post  
Posted to sci.electronics.repair
external usenet poster
 
Posts: 7
Default Fallen TV - no picture, sound OK

Hi all, I tried posting this back in my original thread, but I can't
for some reason (maybe it's too old or something), which is why I'm
pasting the original message in here, along with my follow up
question. Hope this isn't a horrible breach of usenetiquette...

On Aug 8, 12:23 am, "Nicole Bischoff" wrote:

"Tony Ramone" wrote in message


...


Hi all, I've searched around this group a bit so I think I've an idea
where my problem may lie, but I thought I should ask anyway, just to
make sure.
TheTV in question is a Beko 284222WNS. At a recent party in my house,
it was knocked off its table and landed on its screen. The weight of
it ripped the plug out of the wall socket (and broke off the "Earth"
pin, which was actually just a piece of plastic moulded to the plug).
Amazingly it didn't shatter, and from a brief look inside, nothing
seems to be broken or dislodged (it's a wee bit too heavy to pick it
up and shake it to see if anything rattles).
When I powered it up, the picture was gone completely, but the sound
seems to be OK. I can't feel any static from the screen on power-up so
I guess I've got no high voltage. Does this mean a transformer is
busted or could it be something else?
Any advice would be very helpful, I'm just wondering really if it's
worth my while taking it in to be repaired...
Cheers,
Anthony


Maybe you need to read the F.A.Q. for the newsgroup before you post:


http://www.repairfaq.org/samnew/tvfaq/tvdropped.htm


Thanks, I hadn't seen that, sorry. And thanks for all the tips
everyone else.

(and now the follow up):

I know it's been many months since I last posted on this, but
I just thought I'd check with you guys one last time before consigning
this TV to the dump.
Having read all your posts, and the FAQ, I looked around the board for
any cracks, and lo and behold, there was quite a sizeable one running
close to what I assume is the flyback transformer. And sure enough it
was running right through a fairly big track.
So I fixed the crack, then ran some solder and a thin wire along the
broken track. I checked it with my multimeter to make sure I had a
good connection between either end.
The thing is, it's still not working, and I noticed that one of the
smaller components near the transformer looks a little burnt (or at
least brown - could just be flux i suppose) on the underside (I'll
have to check again later which part it was - I can't find the piece
of paper that I had written it down on right now), and I guess it
could be that, or else maybe the transformer itself is just ****ed.
If that's the case is it worth my while trying to fix it at all
(bearing in mind that while I do know how to solder and read circuit,
I don't really know what's going on on that particular board ).
I've already gotten a replacement, but I figured if this one would be
an easy fix I'd keep it for the spare room, but if not, then so be
it...
Thanks again for all your patience.

Ant
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fallen TV - no picture, sound OK Tony Ramone Electronics Repair 7 August 8th 08 08:43 AM
Sound but no picture, picture returns after switch off/on. [email protected] Electronics Repair 3 March 20th 06 08:45 PM
Sound but no picture steveosmith Electronics Repair 8 March 6th 06 04:02 AM
Philips tv with no picture or disapearing picture or slow picturestartup but good sound?? Janne G Electronics Repair 5 December 2nd 04 10:31 PM
RCA TV - Sound, but no picture DFR Electronics Repair 8 July 11th 04 12:34 AM


All times are GMT +1. The time now is 06:31 PM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 DIYbanter.
The comments are property of their posters.
 

About Us

"It's about DIY & home improvement"