Re: Faulty tv
Larry Brasfield
news:S82dnckvVsP...@comcast.com...
> Actually time to turn this one over to the repair shops and stop the dribble!! IMHO
That would depend on the OP's desire and resources,
would it not? I doubt you know enough to gauge either
at this point.
Mr. Terrell's suggestion to take the issue to
news:sci.electronics.repair
is more appropriate under the circumstances,
IMHO. Followups set accordingly.
> "Larry Brasfield" <donotspam_la...@hotmail.com> wrote in message news:LIY3e.56$D53...@news.uswest.net...
>> "Lessie" <less...@hotmail.com> wrote in message
>> news:d2pjug$1qq$1...@domitilla.aioe.org...
>>>> > When the picture suddenly goes on a t.v., what is it usually
>>>> > due to?
>>>>
>>>> Operation of the power switch.
>>>
>>> I don't think this could be it, as there is sound, hence the power switch
>>> must be delivering current.
>>
>> Hmmm. I almost wrote that more symptoms would
>> help narrow the cause a bit. <g>
>>
>>>> Are you thinking of fixing a TV? If so, you will
>>>> be concerned with why yours is broken, not
>>>> common cases. That said, a common failure
>>>> is breakdown of the flyback HV winding, a
>>>> fairly expensive part to replace.
>>>
>>> Are there cheap generic replacements? What is
>>> expensive 10 Pounds or 100 Pounds ?
>>
>> They may have become generic lately. When I was
>> last looking into it. the transformers tended to have
>> so many taps, different output voltages, and primary
>> inductance values, that they were all different.
>>
>> If you really want to diagnose your TV's problem,
>> it would help to describe more of what you can see,
>> especially with different input stimulii if they vary the
>> result. For example, how long after turn-on before
>> the picture "goes". What does "goes" look like?
>> Does it ever come back? Is there a change in the
>> sound emitted? Any odd smells? What can you
>> see when you open the cover and shine a light on
>> the circuit board(s)? Do you have any instruments
>> to apply to the task? Are you willing to purchase
>> the schematic for the set?
--
--Larry Brasfield
email: donotspam_la...@hotmail.com
Above views may belong only to me.
Art
make, model and/or chassis so at least we have a flippin chance at
diagnosing, The original post indicated total lack of any intelligence
regarding actually servicing these devices. therefore the best option, IMHO,
is the fact that professional services would be mandated. Duh!news:2rA4e.66$3n3...@news.uswest.net...
sofie
I agree with your accessment of the OP and his posting. Your reply posting
was correct IMHO.
It is time for a repair shop to look at it UNLESS the OP can provide more
information about his "desire and resources" so we can "guage" both and
respond accordingly.
Best Regards,
Daniel Sofie
Electronics Supply & Repair
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"Art" <plot...@comcast.net> wrote in message
news:pMudncwdo7E...@comcast.com...
Michael A. Terrell
>
> Again! It is blatantly apparent you do not have the technical quality to
> attempt this type of repair, take the flippin thing to a professional
> servicer. For YOUR PERSONAL SAFETY!!
First of all, I am not the one with the bad television. I simply
pointed out that news:sci.electronics.basics was not the place to ask
about TV repair and told the OP to ask his questions on
news:sci.electronics.repair, and to give the make, model and symptoms in
the request.
As far as TV repair I was working in a TV shop in the mid '60s at the
age of 13. I moved on to broadcast, Radar CATV and aerospace
electronics. I have done things the average tech will never do and I was
taught electrical safety when I was 13. I am now 100% disabled for a
number of reasons but I still know how to do the work.
Your silly little rant makes you look bad and doesn't reflect well on
TV techs in general.
--
Former professional electron wrangler.
Michael A. Terrell
Central Florida
Lessie
chucked away, still I wanted to know what it could have been.
The engineer had one look at it and said it was not worth fixing,
he didn't even open it, seems he new what it was straight away.
It was a 25" Panasonic, but I don't know what model it was. One
day we switched it on with the remote and only the sound started,
i.e. no picture. That's it, no picture was ever visible from then on,
the screen was exactly as if the unit was off, no partial brightness
or near the corners, just absolutly dead, as if no power was on.
But this is all academic :-) , so feel free not to waste your time too
much...
tnx.