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Dan Whelan
 
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Did you say 13 years old? I'm a little surprised no one has mentioned
looking at the circuit board for a bad solder connection. I'm assuming
after 13 years of operation, the components must have expanded and
contracted a few times.

I don't think the remote is the problem, nor do I think it's the cause
of the problem.

The first thing I'd do is check for cold solder (definitions of "cold
solder" may vary but we all know what I'm talking about...right?)
anywhere in the IR circuitry....and pretty much anywhere at all since
you have the unit open already.

Take note of where you find problems with the connections of the
components to the circuit board and do a quick test of any active
components to see if they've shorted or if they're open.

Take good long look at the circuit board to see if there is anything
visibly wrong (i.e. bulging capacitors, burnt resistors, cracked
transsistors, diodes, ICs, water damage, etc etc etc.).

After that, I'd say it's safe to start looking into the circuitry for
the problem. If these steps are not taken first, you may very lilkely
be doing alot of work for nothing.

I hope this helps,

Dan


Jem Berkes wrote in message
...
I posted about this earlier (Hitachi CT7883) with the original Video Brain
Remote Transmitter CLU-600PR which broke down over time. The Hitachi VCR
remote control, however, could still control the television perfectly!

But * after * trying an RCA universal remote, the television stopped
responding entirely to even the good remote control. Now I have obtained a
factory remote replacement as per Hitachi's tech support and even this can
not control the television set. The TV stopped responding to remote
controls.

I'm quite certain that the programming efforts of the universal remote put
the TV into a bad state. If I can clear the nonvolatile memory somehow,
this should fix things. But even leaving the TV unplugged had no success.

Any ideas? Is there anything else I can do, short of calling in a repair
person to look at a 13 year old TV set?