Infinity Car Stereo Info Needed

[PaulM725]

Hi All,

I'm hoping to find information, schematics, service manuals, how to, or repair tips. At this point anything for a;

Infinity Model #5269054. I did find that this radio was manufactured by Alpine and installed in early 1990s Dodge and Chrysler vehicles. Extensive searching found some info, however not quite enough to pin point the problems.

The problems: Left Rear Channel fades out after a few minutes. (OK heat related). Replaced Audio Amp. Still the same problem.

No Lamps for buttons. Apparently losing 5VDC, resistors OK

No Display???

The display problem is apparently common. A bad solder joint on a surface mount resistor
But some of the units have a wire wound resistor. Mine has the wire wound and is OK.

Here are some sites that I found interesting so far.

www(dot)allpar.com/stereo/infinity-IV.html
www (dot) personal.palouse.net/andy/Jeep.html

Manuals for this radio seem to be non-existent.

Any other info or experiences repairing this unit would certainly be appreciated.

Thanks
Paul