I have a Sony Betamax VCR Model # Sl-S600 that has a dead capstan motor.
Everything else is working. The unit loads the
cassette and loads the tape around the head drum. the head motor is turning
also.
It has a nine pin connector on the capstan motor. I am getting what looks
like the correct voltages except pin 3 and pin 9 are zero volts.
I don't have a manual on this one and any help would be greatly appreciated.

wrote in message
...
I have a Sony Betamax VCR Model # Sl-S600 that has a dead capstan motor.
Everything else is working. The unit loads the
cassette and loads the tape around the head drum. the head motor is
turning
also.
It has a nine pin connector on the capstan motor. I am getting what looks
like the correct voltages except pin 3 and pin 9 are zero volts.
I don't have a manual on this one and any help would be greatly
appreciated.

Is it a motor and tacho ? so no tacho output

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/

On Mon, 16 Jun 2008 19:01:49 GMT, wrote:

I have a Sony Betamax VCR Model # Sl-S600 that has a dead capstan motor.
Everything else is working. The unit loads the
cassette and loads the tape around the head drum. the head motor is turning
also.
It has a nine pin connector on the capstan motor. I am getting what looks
like the correct voltages except pin 3 and pin 9 are zero volts.
I don't have a manual on this one and any help would be greatly appreciated.

I've seen a lot of Sony Beta VCRs with a bad hall effect sensor on the
capstan motor board. It's the little 4 pin device that looks like a
transistor that is positioned near the spinning rotor. It detects the
rotation of the motor so the driver IC can switch the coils at the
correct time. I've had some success replacing these with ones
salvaged from other scrap VCR motors (drum motors, or capstan motors
usually contain one or two).
Andy Cuffe

"Andy Cuffe" wrote in message
...
On Mon, 16 Jun 2008 19:01:49 GMT, wrote:

I have a Sony Betamax VCR Model # Sl-S600 that has a dead capstan motor.
Everything else is working. The unit loads the
cassette and loads the tape around the head drum. the head motor is
turning
also.
It has a nine pin connector on the capstan motor. I am getting what looks
like the correct voltages except pin 3 and pin 9 are zero volts.
I don't have a manual on this one and any help would be greatly
appreciated.

I've seen a lot of Sony Beta VCRs with a bad hall effect sensor on the
capstan motor board. It's the little 4 pin device that looks like a
transistor that is positioned near the spinning rotor. It detects the
rotation of the motor so the driver IC can switch the coils at the
correct time. I've had some success replacing these with ones
salvaged from other scrap VCR motors (drum motors, or capstan motors
usually contain one or two).
Andy Cuffe




Broken end-of tape sensor? It's a little coil that swings around and nearly
contacts the tape. Capstan motor won't run unless the coils for tape end and
tape beginning are (nearly) touching the tape.

Mark Z.

Mark Z.

Thanks for the replies on this one.
The end of tape sensor looks to be OK and working.
I was thinking about changing the hall effect sensor.
I will see if I have one in the bone yard that will work. This
model is a little newer than the ones I have here so I may
not have one that will fit.
Worth a try!
Thanks!

On Tue, 17 Jun 2008 05:20:44 -0500, "Mark D. Zacharias"
wrote:


Broken end-of tape sensor? It's a little coil that swings around and nearly
contacts the tape. Capstan motor won't run unless the coils for tape end and
tape beginning are (nearly) touching the tape.

Mark Z.

Mark Z.


If that was the problem, it wouldn't go into play at all. Also FF
wouldn't work.

Andy Cuffe

"Andy Cuffe" wrote in message
...
On Tue, 17 Jun 2008 05:20:44 -0500, "Mark D. Zacharias"
wrote:


Broken end-of tape sensor? It's a little coil that swings around and
nearly
contacts the tape. Capstan motor won't run unless the coils for tape end
and
tape beginning are (nearly) touching the tape.

Mark Z.

Mark Z.


If that was the problem, it wouldn't go into play at all. Also FF
wouldn't work.

Andy Cuffe




That's what I get for reading these things at 5:00 in the morning...

mz

I finally tried a hall effect sensor from a sl-hf300 but it was
a little different than the newer style that is on the sl-s600
but it did not work.
I am going to give up on this one.
Thanks for all the good suggestions.