Honestly, stay away from that chassis. Unless you went to TCE's
training for the ctc170,ptk171, ctc172 chassis series, you do not want
to touch it. From lots of experience, the only ones who even had a
chance at repairing that chassis are those techs with years of
experience (especially on the ctc169) AND went to TCE's school on the
chassis.

That is a problem child that TCE doesn't even really want to support.
A lot of special parts were used in that chassis and are no longer
available.

If you have years of experience with the ctc169 and some experience
with the ctc170,171,172 series, and have the training manual set and
the service manuals for that ptk171 chassis, then have a go at it.

Beyond that advice, there is little that can be given without some real
heavy duty troubleshooting on your part. There are simply to many
different causes for that problem on that chassis. Let alone the pages
of tech tips that Thomson has for the series.

There were lots of standby power supply problems, 12v regulator circuit
problems (it is not a simple circuit either), system control issues,
BMOSD module problems, and on and on.....

David

scottmcnall wrote:
The Chassis model is PTK171ACC. As I had said earlier, it does
nothing.
Not even a click. Thanks for your help. Happy Holidays.