Jump to content

groovimus

Registered Member
  • Content count

    1
  • Joined

  • Last visited

Community Reputation

0 Neutral

About groovimus

  • Rank
    Newbie

Profile Information

  • Actual Name
    Tom Groover
  • Gender
    Male
  • Location
    Houston

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. groovimus

    1994 Sable Sound system

    OK I've posted on this before but I had stated the wrong sound system which is the JBL and not the premium sound system as I previously thought. I have no sound and have already bought a replacement amplifier for this problem. I cannot find anywhere how the radio/w cassette powers up the amp. There is a control signal on the radio called "logic mute" that connects to the amp at a terminal called "mute control". I measure no toggling of this signal with my meter, I measure only millivolts. I considered that maybe the control signal is current instead of voltage. I got an answer on my other post saying that this signal is only for muting when starting the engine. If that is true then I have no idea how power to the amp is cut. Battery voltage to the B+ amplifier terminal is there. I have good audio signals getting to the line in's of the amp. Again switching out the amp did not fix. So I would like to know what is the characteristics of the logic mute control signal coming out of the radio or where can I find the information? It is not on the wiring diagram which you would think would be a great help to technicians if it were. I have attached the wiring diagram. BTW JBL, a great historical American company established in Los Angeles, just liquidated. sable stereo.pdf
×