[long] Help!!! CD spinning sloooow

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seppstefano

  • Jr. Member
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[long] Help!!! CD spinning sloooow
« on: 12 Jan 2005, 03:50 pm »
Hi all,
just after reading a lot on jumping CD, it's my turn now (sadly)...

A couple of evening ago, while trying to attach to a wall a decorative
photo given by my wife, I accidentally pushed the test switch on the
general switch located on distributor mains, while music was playing...
(a CD was playing, indeed).

Then, definitely not smart at all, I pushed it again in order to light
all the house on.

Ok, I came back to my music and, after a while I seemed a CD was
"plopping", I listened to small "pop, plip" and "plop" in music flow. I
swapped the CD, yet the problem persisted... more some CD started
randomly refusing spinning when inserted.

I disconnected the player (Audiomeca Obsession Mk I, older model), opened it and tried to understand something
more... it seemed the motor metal spindle lacks some torque when trying
to spinning CD (the whole mechanics is based on a 2 metal rails unit,
laser is a SANYO numbered N0503705).

I added a gummy ring, to help spindle grip the CDs, but it didn't solve
the problem. More, when the CD plays, I slowed further more the CD with a finger, the problems heard seems of same nature: some clicks and pops
which are louder and more distinguishable as the slowing increases.

So, I thought the problem is rotational constance of the motor. Is it
ok? Is it possible to fix it?

Below a list of IC and pots seen on the digital/control board:
IC: Sanyo LC6538D 1L1 4814

pots:
P002 E/F BAL 103
P001 T.DC-OFF 104
P003 T-GAIN 502
P005 F-GAIN 203
P007 FREE RUN 204

Is perhaps worth trying to adjust some pot, if anything changed in
electrical characteristics of CD player (perhaps due to current inrush),
or better to look for another mechanics, or replacing the only motor is
feasible (which one)???

Sorry for LONG LONG post... Any help is really welcome, please,

Stefano