wrote:
Hi all,

I found next to the dumpster an old Philips CD-350 player and since it
looked good, I took it home, in my mind just for parts. I didn't expect
a so old looking player to still work. Once home, the player had a
couple of obvious faults: motor belt broken and some led segment not
working on the display (that's strange, I've never seen led segment to
go completely off, but I think there's no other explanation since the
led digits are multiplexed and segments on other digits work just fine).
Another fault that took me a while to identify is that the player appear
to be able to read the TOC only once after power up. If I change the
disc it remember the first TOC it read after power up no matter what I
try. Other than that it sounds really good, I didn't remember I have
listened to such good CD sound previously (listened just to the
headphone output while it was on the bench, but still sounded kind of
great really). Does anyone have a clue about the TOC reading problem
anyway? Caddy's switches appear to work fine since the disc spins
momentarily after the caddy loads. Still the new TOC isn't read (or
stored?) if the player has already read one after power up. Of course
with the wrong TOC the player still plays what he believes are the correct
track begin times.

Thank you in advance


Frank IZ8DWF

Not sure how similar the CD350 is to the CDM-3 Industrial player, but on
that model (used in jukeboxes in the late 80s and early 90s) the player
logic was separate from the player itself. If that is the case then your
player is probably fine, you have to track this in the CD-Control logic.

I would expect to find a "Load" function - this should clear the TOC
register as well as indicate somehow that the CD has been placed on the
player - I would start there. Perhaps there is a microswitch or
opto-switch that records that the CD disc clamp (to motor) is in place?

John :-#)#
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