On Wed, 17 Sep 2003 21:54:14 -0400, "tempus fugit"
wrote:

Hey all;

I'm currently trying to get a Sony EXCD-21 auto CD player up and running.
The unit worked fine when it was removed from the previous car, but when I
tried to install it in another car, it was dead.

I pulled it back out, and hooked it up to my bench PS, and found that it
wasn't actually dead, but the display was flashing faintly (all the LEDs for
the panel as well as the LCD display). If I hit the reset button, it turns
off, but flashes again when I turn it back on. I noticed that when a ground
wire for the speaker touched the power ground, I got a steady display and
all the controls were now functioning; however, I get no sound out of it.
With the ground wire separated, I get a dit-dit-dit sound from the speaker.

Any ideas on what to do next?

Does grounding the case fix the problem?