diyAudio

diyAudio (http://www.diyaudio.com/forums/)
-   Chip Amps (http://www.diyaudio.com/forums/chip-amps/)
-   -   trouble with a PSAudio p300 (http://www.diyaudio.com/forums/chip-amps/61161-trouble-psaudio-p300.html)

Joseph0 21st July 2005 08:26 AM

trouble with a PSAudio p300
 
I've done some modifications on a P300, which can be seen here:
http://homepage.mac.com/theo224/5748...toAlbum52.html
Please allow me to ask for help.

The unit was working fine, but in listening to differences between op-amps on the MW2 card, I accidently put a module in upside down. The unit will power up without blowing fuse, but no output, and the display reads the red light in lower corner.

I'm not an electrical engineer, and this is my first DIY project, so I don't have much knowledge or understanding of circuits. I'm guessing a shorted op-amp, but when I use the diode/transistor test with a multi-meter: black at -Vin, red at Vout = .887V; black at +Vin, red at Vout = .886; this with both modules.

http://homepage.mac.com/theo224/.Pic...t/IMG_0004.jpg

The other transistors seem okay too, but I will check again.

Are there any suggestions?

Joseph0 21st July 2005 10:03 AM

oh man, I didn't know this forum was for a dedicated brand of amp. the topic is still relevant, but I apologize nonetheless. I will repost in the Solid State forum.

bigmike216 21st July 2005 02:07 PM

not really for dedicated brand of amp at all around here :)


All times are GMT. The time now is 08:19 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