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PS03 power supply -30v led oout

PostPosted: Tue May 28, 2013 1:30 pm
by bevins
Hi,

Noticed the gain cutting in less than half. Opening up the unit I noticed the -30volt led when powered up comes on for a sec then shuts off.
I bought two N72 and power supply 3-4 maybe 5 years back. Dont remember, so I dont have any of the docs I was sent when purchased the modules.

Any ideas where to start probing?

Thanks,

Bob

Re: PS03 power supply -30v led oout

PostPosted: Thu May 30, 2013 12:49 pm
by tpryan
Disconnect the harness at the PS03 and power up with no load. What happens?

Re: PS03 power supply -30v led oout

PostPosted: Fri Jun 07, 2013 3:43 am
by bevins
Same thing. -30 light flashes and goes out and stays out.

I ordered a new Power supply but I want to fix this one. The -30volt regulator? I havent stuck a meter on it yet.