diyAudio

diyAudio (http://www.diyaudio.com/forums/)
-   Solid State (http://www.diyaudio.com/forums/solid-state/)
-   -   Biasing Hartke HA 7000 (http://www.diyaudio.com/forums/solid-state/213936-biasing-hartke-ha-7000-a.html)

chicago_mike 5th June 2012 07:42 PM

Biasing Hartke HA 7000
 
Hey gang,

Got a Hartke HA7000. One power module is cold at startup, but the other gets SUPER hot SUPER fast.

I'm going to check voltages, but I don't want to blow that power module.

I had replaces a set of 2SC5200 / 2Sa1943's on both boards.

What's the voltage I should see Going to the modules? For either a 5000 or a 7000 unit?

Thanks!

chicago_mike 5th June 2012 07:57 PM

Both modules are getting:

51 VAC
+66 volts DC
-66 volts DC

One module is getting an inverted signal....thats on purpose.


All times are GMT. The time now is 05:42 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio


Content Relevant URLs by vBSEO 3.3.2