Pszemol wrote:

I am repairing Thermo Orion 525A pH-meter with a VF-Display.

It looks like there is a short in the DC-DC converter module.
The module is made by CET Technologies, model CT-1058.
I am unable to find info about it on their website and they do
not reply to my e-mails asking for help...

It has 7 pins, two for +5V/GND input, two for the 45V output
and three strange pins in the middle showing about 6V on
a working unit but when measured with ohm-meter they show
short (transformer taps?).

I am looking for ideas of buying a replacement DC/DC module
or to make something from scratch which will work similar.
Please advise.
If you brave and its not potted, pry the convertor apart and
see if you can trouble shoot it. If its already dead, you
cannot hurt it anymore than it is.

I had one of these displays on a Delco radio once that
had me going. Turned out the tiny glass extension where
they suck the air broke off and let the vacuum out.

Bob


----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----