TV power problem, relay clicks, only turns on when you hit it

I have a Toshiba 27" made in 92.

There is a bit of a problem with turning it on. Turning off is always
fine. The remote doesn't turn it on, but I hear a relay click. Also,
doesn't turn on with the front switch under normal pushing...but also
hear a relay click.
The only way it turns on, is but hitting the front "ON" switch really
hard, to move or jiggle the set, or the hit the ON switch followed by
hitting the set in a certain sequence.

I believe it may be the relay, or some kind of mechanical part or
connection because you seem to need to hit the set to turn it on. Would
like some opinions before I pursue this farther. I'm not a TV repair
expert by the way.

Anyone have any suggestions... anyone know what the relay looks like?

On 29 May 2006 12:24:20 -0700, (E-Mail Removed) put finger to
keyboard and composed:

>I have a Toshiba 27" made in 92.
>
>There is a bit of a problem with turning it on. Turning off is always
>fine. The remote doesn't turn it on, but I hear a relay click. Also,
>doesn't turn on with the front switch under normal pushing...but also
>hear a relay click.
>The only way it turns on, is but hitting the front "ON" switch really
>hard, to move or jiggle the set, or the hit the ON switch followed by
>hitting the set in a certain sequence.
>
>I believe it may be the relay, or some kind of mechanical part or
>connection because you seem to need to hit the set to turn it on. Would
>like some opinions before I pursue this farther. I'm not a TV repair
>expert by the way.

No kidding. :-)

>Anyone have any suggestions

It sounds like the set may have a dry joint. I suggest you reflow all
suspect solder joints before you make the problem worse.

>... anyone know what the relay looks like?

It is usually rectangular with 4 pins. It may have a transparent case
through which you would see the coil and contacts.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

(E-Mail Removed) ha escrito:

> I have a Toshiba 27" made in 92.
>
> There is a bit of a problem with turning it on. Turning off is always
> fine. The remote doesn't turn it on, but I hear a relay click. Also,
> doesn't turn on with the front switch under normal pushing...but also
> hear a relay click.
> The only way it turns on, is but hitting the front "ON" switch really
> hard, to move or jiggle the set, or the hit the ON switch followed by
> hitting the set in a certain sequence.
>
> I believe it may be the relay, or some kind of mechanical part or
> connection because you seem to need to hit the set to turn it on. Would
> like some opinions before I pursue this farther. I'm not a TV repair
> expert by the way.
>
> Anyone have any suggestions... anyone know what the relay looks like?

you will need to resolder the power supply and high voltage components
where heating and cooling cycles have led to the solder becoing
cracked. if in doubt, have a tech do this simple and hopefully
inexpensive work, or you could end up trashing the set.
-B.

(E-Mail Removed) wrote:
> I have a Toshiba 27" made in 92.
>
>
>
> Anyone have any suggestions... anyone know what the relay looks like?
>

With the back off the set, using a mirror, turn on the set using the
Remote !, Listen for the Relay to click ON !! and OFF. Should be close
to the back of the Set.

My guess is the relay is about to give up the ghost entirely, ie I
suspect the relay contacts are badly cooked.

This should come as no surprise after all, I would guess the tiny
contacts have switched ~ 500 watts about 20,000 times, over 15 years of use.

The QD. quick and dirty, is to permanently solder the appropriate traces
on the motherboard to leave the set ON permanently and turn OFF by
un-plugging the Set, or use a switched Power-bar.
The final cure will then be to replace it with a BIG SCREEN TV (HD),
partially paid for by forgoing the cost of replacing the Relay.

Yukio YANO

A wild guess.... to be sure!
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



"Yukio YANO" <(E-Mail Removed)> wrote in message
news:Cn0fg.214246$WI1.194537@pd7tw2no...
>
> My guess is the relay is about to give up the ghost entirely, ie I
> suspect the relay contacts are badly cooked.
>

> Yukio YANO

sofie wrote:
> A wild guess.... to be sure!

Less wild than the two previous posters call for COLD SOLDER JOINTS !, I
would even bet a case of beer on it. We could get the O/P to umpire the
call.
Yukio

I traced the Relay on another TV with the same symptoms same way, was
surprised by how small it was. These contacts are supposed to last a
hundred thousand cycles !