[rescue] CLD-3090 (was Re: Slightly OT: Bad Cap Saga)

[Curious George]

--- On Mon, 8/18/08, Carl R. Friend <crfriend at rcn.com> wrote:

> Speaking of things that are way past their expiry date, does
> anybody here happen to know what internal voltages are used in
> Pioneer CLD-3090 Laserdisk players?  I've got one that the logic
> and display turns on, but there's precisely no actuator motion.
> That sounds like power to me, and I'd like to get the thing
> working again even if it does mean an external supply. 
> I'd also like to rescue the Tangerine Dream CD that's stuck in
> it...  On the television -- does an analogue the old "Sam's
> Photofact" series still exist?  If I can find a schematic for the thing
> I'll likely be able to fix it.

(sgh)  Unfortunately, my manuals are for the 3030 and 3070.
Assuming the 3090 is similar, I see the loading motor is
powered by ~13-14V (the motor probably only sees 12V as it
is driven through an H bridge).  I'm not sure this is the
motor that you are concerned with (?).

If you can trace foils, you should be able to come up
with a rough idea of what the *maximum* voltage it is
likely to see (by looking at the components in the
driving ciruit).

You can also often manually rotate the gears in the
mechanism (often with a bit of effort due to the
mechanical gain you'll be fighting).

And, are you sure there isn't a bad belt someplace
(that's often a $1 fix)?