Aiwa Portable CD Player/AM-FM-Tuner seems "Dead"

[JS]

This Aiwa XP-SR320 "Cross Trainer" portable CD Player AM/FM Stereo seems
completely "dead".
It's got two new AA batteries, and I took the inside covers/plates off
and verified the +3vdc at the battery posts, but don't know what else to
try - I don't see a fuse or other circuit breaker-type device, and don't
have the schematic. I see no burn marks and nothing obviously broken on the
inside. I also toggled the 3-way "hold/off/resume" switch, but that doesn't
seem to be the problem. there is a DC 5-6V Adapter port, which has nothing
plugged into it. Could this player be in some kind of special
"sleep/hibernation/factory/configuration mode"?
The AM/FM Tuner portion doesn't work either, and the LCD display shows
nothing - it behaves as if it's got no power.
This looks like a simple power problem, doesn't it? Shouldn't I at least
be able to get the tuner to work, or something to come up on the LCD
display? Any ideas?

Thanks,
Joey.

P.S. This player stopped working suddenly, after years of loyal service, and
it was manufactured in June 2001. It may have had a history of being dropped
a few times. It does have an "Electronic Anti Shock System"(E.A.S.S.)

 

[Mark D. Zacharias]

You might look for any cracks in a circuit board. Aiwa's are "special" and
often difficult to troubleshoot even for trained technicians.

Mark Z.

 

[selldastuff]

start by looking closely at the solder connections under some magnification.
Look for surface mount fuses (these are typically white and have a part
designator F-something...like F1 F2, etc.)..

Start by testing the continuity of fuse or fuses. With the 3V power
applied, try probing and poking at the board with a non-conductive pointy
thing and sometimes a cracked part or connection can be found this way.

Some lazy techs will use a solder-blob to fix a blown surface-mount fuse.