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Panasonic DVD-RV31

Hi.........I've got (4) of these units. One has a spindle motor that
has stopped spinning. Yeah, I know, the RV31 is very likely to exhibit
this issue sooner or later. I've got mine apart and was contemplating
replacing the Optical pickup unit, with spindle motor on board. Why,
right? I think it costs around $70 and, with prices for new units as
they are--??? But, it's more than the money to me. And, it's not that
I'm starting some crusade against Panasonic for selling these, and
other, units with built-in crash. It's that I am an ex-GM service
manager from the early 70's and, back then, we bench dismantled stuff.
We just didn't throw things away when they stopped working. We fixed
them. So, if anyone knows of another fix, prior to my contemplated R&R,
please send me a note. I'd like to solve this issue inexpensively and
let everyone know how to get this great unit back on line. Hey, this is
still America and we make things happen.

Take it easy, Rob
 
M

Mark D. Zacharias

Jan 1, 1970
0
Hi.........I've got (4) of these units. One has a spindle motor that
has stopped spinning. Yeah, I know, the RV31 is very likely to exhibit
this issue sooner or later. I've got mine apart and was contemplating
replacing the Optical pickup unit, with spindle motor on board. Why,
right? I think it costs around $70 and, with prices for new units as
they are--??? But, it's more than the money to me. And, it's not that
I'm starting some crusade against Panasonic for selling these, and
other, units with built-in crash. It's that I am an ex-GM service
manager from the early 70's and, back then, we bench dismantled stuff.
We just didn't throw things away when they stopped working. We fixed
them. So, if anyone knows of another fix, prior to my contemplated
R&R, please send me a note. I'd like to solve this issue
inexpensively and let everyone know how to get this great unit back
on line. Hey, this is still America and we make things happen.

Take it easy, Rob

If it's really the spindle motor, they can often be fixed. The fault is very
often some carbon accumulated at the brushes, shorts out or opens up. There
are usually little slits at the bottom of the motor. One uses an electronic
cleaner - lubricant with a plastic extender, spray into the motor, aiming at
the brushes, and rotate the motor. Use a compressor to blow out the excess.
Might take several tries, or if the brushes are actually damaged, then it
wouldn't really work at all, of course.

One can use a small variable power supply to run the motor while spraying
stuff in there. Be certain that you get the motor running in the correct
direction, which would be clockwise as viewed from the top of the motor.
This is because some motors are so CHEAP that the brush feeler barely
extends beyond it's contact point. Running in reverse runs the risk that the
end of the brush will catch on the commutator slits as it rotates, damaging
the brush feeler.

Mark Z.
 
M

Mark D. Zacharias

Jan 1, 1970
0
Hi.........I've got (4) of these units. One has a spindle motor that
has stopped spinning. Yeah, I know, the RV31 is very likely to exhibit
this issue sooner or later. I've got mine apart and was contemplating
replacing the Optical pickup unit, with spindle motor on board. Why,
right? I think it costs around $70 and, with prices for new units as
they are--??? But, it's more than the money to me. And, it's not that
I'm starting some crusade against Panasonic for selling these, and
other, units with built-in crash. It's that I am an ex-GM service
manager from the early 70's and, back then, we bench dismantled stuff.
We just didn't throw things away when they stopped working. We fixed
them. So, if anyone knows of another fix, prior to my contemplated
R&R, please send me a note. I'd like to solve this issue
inexpensively and let everyone know how to get this great unit back
on line. Hey, this is still America and we make things happen.

Take it easy, Rob

P.S.

Best not to remove the motor from it's subchassis. The motor platter height
is very critical.

mz
 
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