Dorrough C2 - Right Side Pinning

[Siegfried Meier]

Hey guys!

Any idea why this meter would do this?  Used to work perfectly...now it pins hard with no input connected or level coming in...

Thanks!
Sig

 

[radardoug]

This is the same as saying 'My car stopped working, any idea why?'
This device will have 50 to 100 parts, any of them could have died, you are asking us to somehow diagnose this based on NO information.

 

[Brian Roth]

Years ago I worked on one of those with BOTH channels "pinned".  One of the PSU regulators had died so it was missing one rail.  Check rails on the circuitry for the bad channel.  I don't seem to find schemos for that unit on my hard drive.  Send an email to Dorrough....they were very helpful.

Bri

 

[Siegfried Meier]

Years ago I worked on one of those with BOTH channels "pinned".  One of the PSU regulators had died so it was missing one rail.  Check rails on the circuitry for the bad channel.  I don't seem to find schemos for that unit on my hard drive.  Send an email to Dorrough....they were very helpful.

Bri

So it would appear that I did give "SOME" info in order for Brian to give me a little clue as to where I should look... 

Thanks for being helpful dude, I'll check that out!!!

 

[JohnRoberts]

Sounds like it's busted... if its stereo, compare the working side to the faulty side.

JR