Re: CMV CT-934D won't power on - secondary voltages disappear

Did you ever get it fixed?

An old trick we used to use long ago was to use a 6V lantern battery in series with a resistor on the 5V supply line to limit the current just below operating current for the traces being evaluated. Then you take a meter and measure the voltage along the supply line traces, it will be a few micro volts higher at the source but will drop to zero at the short. Of course in those days the boards we were testing were 17" double sided - not these 4" 6-layer jobs.
...

Re: Hyundai L90D+ inverter mosfet problem

I loved my L90D+ when it was working - so did my son and one of my clients.

Now I have 3 dead ones and want to fix 'em up.

Over the years 3 of the 4 have been sent back for warranty repair for the same problem. But now these 3 are out of warranty.

The power/inverter board is hard to find.

When I got my monitor back from repair, I noticed the brightness no longer worked correctly - soon after (within months) it failed again. I took it apart and found a dead APM9932. I remembered...

Re: New Members - please post your introductions here

Hi,

Name is Harvey (but that was taken as a user name)

Have been actively associated with electronics since 1975 and have held technical jobs ranging from CE for Standard Register, Technical Manager for Showbiz (aka Chuck E. Cheese), Production Engineering Tech for Unitrol Sirens and many others over the years. My diverse background includes working as a machinist for a stint and even hanging and taping drywall professionally for 10 years. I founded my own research and development company in 1981...