Otari MTR 90 mk II schematics anyone?

[stuartpre]

Hi, I just picked up Mtr 90 mk II that needs some love, well alot of lov e. I have the service manual pdf but I do not have any schematics. Can someone share? my email [email protected]

Thanks.

 

[plimousse]

Hi,
Please, let me know what you need.
I have all schematics, but only on paper, no pdf ...
Cheers,
Pascal

 

[stuartpre]

Thanks Pascal, to start with any and all power supply schematics would be great as my machine has psu issue.

The -40v circuit breaker is missing and the larger 'to transformer' connector on the metal psu box shows scoring and burn marks!

 

[plimousse]

Ok,
Please send me a pm with your email address.
I will try to scan the psu parts asap.
Cheers,
Pascal

 

[blakeyman]

Hey Pascal

Any chance I could get hold of schematics too?

8)

 

[plimousse]

Hi,

There is no problem, but as above, let me know what do you need.
The schema are only on paper form, and I need scan each page.

Cheers,
Pascal

 

[blakeyman]

Hi Pascal

I'm having problems with my vari-speed (when I switch on it's just fixed at 29.70  ips

So perhaps for CB-113 and also lower card #4?  (not sure which card "controls" the clock?)

 

[plimousse]

Hi,

Strange symptom ...
Please send me a pm with your address, and I will send asap the schematics.
If you have an extender board, you can check on Capstan card, the reference clock should be 9600 Hz.

Best regards,
Pascal

 

[blakeyman]

Thank you Pascal for all your help!!!

 

[davemascera]

Hi,

Didn't want to make a new thread, as I've been told not to in many circumstances. I need the PSU scheme for the MTR-90 Mk2 if anyone has it. If not, I'll post here upon finding it for archival purposes.

-Dave

 

[plimousse]

Hi,
Plse find attach files

 

[plimousse]

Next

 

[plimousse]

Finish

 

[Arno Jordan]

Hi Pascal. my Otari MTR 90 MK2 has strange wow problems, so i am looking for the capstan controller pcb schematics. Do you probably have it already as PDF ? If not, i´d like to send a little encouragement for your scanning work if thats ok with you ;-)

 

[MarkHorn]

Otari MTR-90 14-16 Capstan Control PB-45V Schematic

 

[MarkHorn]

Otari MTR-90 13-15 PB-45V Capstan Control PCB Assembly

 

[MarkHorn]

Otari MTR-90 05-23 Fig 5-11 Capstan Control Circuit Board, Adjustments and Test Points

 

[MarkHorn]

Otari MTR-90 05-19 Reel Size Detector Adjustment 5.12 Capstan Servo

 

[MarkHorn]

Otari MTR-90 05-20 Adjustment of Capstan Control and I-O Control PCB Assemblies

 

[MarkHorn]

Otari MTR-90 05-21 Fig 5-10 (a) Output Waveform (b) Location of the Capstan Tachometer PC Board