Re: Sylvaina 27 inch Tv Won't power up..
- From: "Michael Kennedy" <Mikek400@xxxxxxxxxxxxxx>
- Date: Sun, 12 Jun 2005 00:47:08 -0400
The problem was just some cold solder joints. I reflowed the solder and
Volia!
"Michael Kennedy" <Mikek400@xxxxxxxxxxxxxx> wrote in message
news:_uWdnbE4oe7qDjbfRVn-gg@xxxxxxxxxxxxxx
>I found the repairfaq.org tv page. It looks quite useful, but we will see
>if I can fix this thing..
>
> - Mike
>
> "Michael Kennedy" <Mikek400@xxxxxxxxxxxxxx> wrote in message
> news:oeOdnWXGPrLHBjffRVn-pw@xxxxxxxxxxxxxx
>>I know what not to touch inside a tv. I've read up on crt safety in the
>>past because I have had a few projects where I had to remove a tv from its
>>case and mount the crt in a fixture. I know how to ground the crt tube and
>>caps. My biggest problem is finding the bad component. Would you suggest
>>replacing all of the caps in the power supply section of the chasis? You
>>said a short in the power supply sounds like a possible problem, could I
>>check the caps with a ohm meter and just replace whichever one is bad?
>>
>> One thing I just remembered. This tv gave me trouble (doing the same
>> thing) in the past and if it were upside down it would work. So I assumed
>> that there was a cold solder joint somewhere. I thought I had fixed it
>> because the solder was cracked on a large capicator and I reflowed it. It
>> worked fine for a few weeks. Then it started working some times and not
>> others. A good whack used to fix it. I havn't used the tv in a while but
>> the problem started again and now it just won't power on at all no matter
>> how much you hit it.
>>
>> I think I will check for shorted out capicators with the good ole ohm
>> meter and look to see if that cap came loose again. I'm not sure that was
>> the problem to begin with, but the solder was cracked on it.
>>
>>
>> "William R. Walsh" <newgroups1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
>> message news:vlwqe.36030$x96.1902@xxxxxxxxxxxx
>>> Hi!
>>>
>>> Something in your TV is shorted or the regulation in the power supply
>>> has
>>> become faulty.
>>>
>>> What you are seeing (and hearing) is the power supply attempting to come
>>> up
>>> and then shut down again. Normally this happens when the outputs of the
>>> supply are shorted or even overloaded. Since you mentioned seeing
>>> channel
>>> numbers flicker on and off on the set, it is very possible that the
>>> power
>>> supply itself is where the fault lies and that the rest of the set is
>>> fine.
>>> As a wild guess, I would say that bad capacitors in the power supply are
>>> likely.
>>>
>>> If you don't know where to start and you want to have the TV fixed, then
>>> it
>>> might be advisable to take it to a shop and get an estimate on repair.
>>> Provided the TV was working well prior to its failure the cost of repair
>>> may
>>> be worth it. If you want to learn to repair electronics, I wouldn't
>>> start
>>> with a TV set. There is just too much inside that can give you a nasty
>>> surprise or even ruin the whole day (and a lot more) if you don't know
>>> what's all going on in there.
>>>
>>> William
>>>
>>>
>>
>>
>
>
.
- References:
- Sylvaina 27 inch Tv Won't power up..
- From: Michael Kennedy
- Re: Sylvaina 27 inch Tv Won't power up..
- From: William R. Walsh
- Re: Sylvaina 27 inch Tv Won't power up..
- From: Michael Kennedy
- Re: Sylvaina 27 inch Tv Won't power up..
- From: Michael Kennedy
- Sylvaina 27 inch Tv Won't power up..
- Prev by Date: Re: Need value of R335 on Sylvania Chasis 26B1-06AA
- Next by Date: Re: DANBY air conditioners JUNK?
- Previous by thread: Re: Sylvaina 27 inch Tv Won't power up..
- Next by thread: Re: DC Wave Questions
- Index(es):
Relevant Pages
|
