Jan:
Slow down a little.... there is a lot of successful troubleshooting and
repairing that can be done without a schematic. Take some time and trace
the circuitry with your eyes..... checking different components with your
DMM.
There is no high voltage because there is no regulated 130 v B+ coming out
of the chip and there are a lot of reasons that there is no voltage coming
out of the chip....... is there "raw" B+ at pin 3 ? (~ 150 V) of the
regulator chip as referenced to pin 1? Did you check for shorted parts and
components in the circuitry after the chip? (see my previous reply post with
suggestions) Do you have a replacement chip that you can install?
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
-----------------------------------


"Jan" wrote in message
...
On Thu, 19 Feb 2004 10:26:01 -0800, "Sofie" wrote:

Jan:
If it is not putting out regulated B+ @ 130 V DC it is most likely
faulty..... obviously the other supporting circuitry can cause a B+
faults
like shorted loads (always look for a bad HOT), bad pre-regulator diodes
and
filter, faulty base drive/reference, open resistors, etc. The STR 30130
is
usually a fairly reliable unit as long as it is heat sinked well and the
solder connections aren't cracked or dry.... or there isn't a fault
before
or after the chip.
Pin 1 Common
Pin 2 Base
Pin 3 Input
Pin 4 Output
Pin 5 n/c

Best Regards,
Daniel Sofie
Electronics Supply & Repair
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Thank you for your input.

I am first year EE student and appreciate your efforts.

I have no voltage out of the regulator.

There is a relay that is not energizing and I assume that;s because
there is no high voltage.

A viscious circle.

How to continue?

No schematic .

Thanks again

Jan