What would cause 0 voltage on preamp outputs?

grampi
10+ year member

CarAudio.com Elite
I've checked the obvious things like making sure the HU wasn't muted and defeat wasn't on. I put in a CD, cranked the volume all the way up and put my DMM leads on the RCA jacks on the rear of the HU and it reads absolute 0 volts. With the unit having 4 volt preouts, shouldn't I be seeing 4 volts, or very nearly 4 volts AC? The only thing I can think that could be wrong is the preamp output circuit is bad. What else could it be?

 
Sounds like a dead preamp section if you aren't getting any output from any of the RCA outs. Is the switch on the bottom set to "norm" and not "eq/div"?

 
Activity
No one is currently typing a reply...
Old Thread: Please note, there have been no replies in this thread for over 3 years!
Content in this thread may no longer be relevant.
Perhaps it would be better to start a new thread instead.

About this thread

grampi

10+ year member
CarAudio.com Elite
Thread starter
grampi
Joined
Location
Cheyenne
Start date
Participants
Who Replied
Replies
4
Views
1,137
Last reply date
Last reply from
bumpin buick
IMG_20260516_193114554_HDR.jpg

sherbanater

    May 16, 2026
  • 0
  • 0
IMG_20260516_192955471_HDR.jpg

sherbanater

    May 16, 2026
  • 0
  • 0

New threads

Top