Repair help for philips cd960

[René]

Dear sirs,

Maybe you have an idea ? about this,
I got myself a vintage Philips cd960 and dac960 the look like new and they
also sound wonderfull using the cd960 as a drive and the dac960 as
converter. But on some cd's (not all) I hear through the sound some static
clikking noises alway's at the first 4 or 5 tracks, tracks later on there is
no problem.
I allready changed the laser and drive but it makes no difference. It is the
CDM1 drive (very nice) by the way.
Do you have an idea ? The laser is good it even reads cdr without a problem
and it is only on a few cd's that I have.


Regards René.

 

[Tim Schwartz]

Dear sirs,

Maybe you have an idea ? about this,
I got myself a vintage Philips cd960 and dac960 the look like new and they
also sound wonderfull using the cd960 as a drive and the dac960 as
converter. But on some cd's (not all) I hear through the sound some static
clikking noises alway's at the first 4 or 5 tracks, tracks later on there is
no problem.
I allready changed the laser and drive but it makes no difference. It is the
CDM1 drive (very nice) by the way.
Do you have an idea ? The laser is good it even reads cdr without a problem
and it is only on a few cd's that I have.


Regards René.

Rene,

Did you adjust the focus offset and laser power output when you changed
the laser? I don't know the CD-960 specifically, but for many of the
CDM 1 and CDM 4 based machines I've worked on these adjustment must be
made. For the focus offset, you don't really need the official Philips
test disc. You can use several commercials discs and compromise the
adjustment to they are all in tolerance.

Regards,
Tim Schwartz
Bristol Electronics

 

[René]

Rene,

Did you adjust the focus offset and laser power output when you changed
the laser? I don't know the CD-960 specifically, but for many of the CDM
1 and CDM 4 based machines I've worked on these adjustment must be made.
For the focus offset, you don't really need the official Philips test
disc. You can use several commercials discs and compromise the adjustment
to they are all in tolerance.

Regards,
Tim Schwartz
Bristol Electronics

Thanks for the reply Tim,

no I did not made the adjustments because I am a little bit affraid to
damage the laser, but now I guess must do it.
I wil have a look at the laser service manual.
Yesterday I took the cd that has the most cliks on it and I made a copy with
the exact audio copy program and the cliks were gone.
Can it not be some copy protection ? wich this vintage players can not
handel ?

Hope to hear from you Regards

René.