|
Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc. |
|
Thread Tools |
3rd May 2021, 4:21 am | #1 |
Triode
Join Date: Dec 2019
Location: Darwin, Northern Territory, Australia
Posts: 12
|
Tape Speed Adjustment Rosita KL2600
I was wondering if anyone knows the location to adjust the tape speed of the Rosita KL2600 with the R795 cassette deck?
Mine is playing to fast at the moment. The radio museum link is https://www.radiomuseum.org/r/rosita_kl2600kl_260.html Thanks |
3rd May 2021, 8:19 am | #2 |
Dekatron
Join Date: Jul 2008
Location: Kington, Herefordshire, UK.
Posts: 3,670
|
Re: Tape Speed Adjustment Rosita KL2600
Some DC cassette motors have a screwdriver speed adjustment on the motor can itself - it's worth a look.
|
4th May 2021, 10:55 am | #3 |
Dekatron
Join Date: Apr 2019
Location: Worthing, West Sussex, UK.
Posts: 6,600
|
Re: Tape Speed Adjustment Rosita KL2600
The Capstan speed adjustment (if present) may be on a motor speed control board in the form of a small adjustable pre-set potentiometer. Very difficult to know without the applicable documentation.
David |
5th May 2021, 1:01 pm | #4 | |
Triode
Join Date: Dec 2019
Location: Darwin, Northern Territory, Australia
Posts: 12
|
Re: Tape Speed Adjustment Rosita KL2600
Thank you for the replies and advice. I was able to track down this image of a schematic from radio museum for the R795 (not the best image but it's all I can find). It looks like the motor is in the lower right corner of the schematic.
Can anyone tell if there is a trim pot connected to the motor and where in the wiring it is located? Here is a link to the schematic www.radiomuseum-bocket.de/wiki/index.php?title=Datei:Rosita_Studio_4500_Bode-Jakisch_2020_(10).jpg And I have attached it as well. Thanks Quote:
|
|
5th May 2021, 2:44 pm | #5 |
Dekatron
Join Date: Apr 2019
Location: Worthing, West Sussex, UK.
Posts: 6,600
|
Re: Tape Speed Adjustment Rosita KL2600
Well found.
Bottom right corner of schematic shows the capstan motor servo circuit with potentiometer VR701 being the motor speed adjustment. The whole circuit including the FG (frequency/pulse generator) is shown within a dotted line box, am not sure if this indicates that everything shown is integrated into the motor assembly, if so then the speed adjustment is at the motor as Ted previously suggested. David |
7th May 2021, 3:11 am | #6 | |
Triode
Join Date: Dec 2019
Location: Darwin, Northern Territory, Australia
Posts: 12
|
Re: Tape Speed Adjustment Rosita KL2600
Thanks for the spot on advice. I was successful at adjusting the speed, of course I took apart the motor first just to realize there was a small hole at the base of the motor housing that gave access to adjusting the trim pot but it is now back together and functioning properly!
Quote:
|
|
7th May 2021, 6:25 am | #7 |
Hexode
Join Date: Nov 2010
Location: Sheffield, South Yorkshire, UK.
Posts: 278
|
Re: Tape Speed Adjustment Rosita KL2600
Well done, hands up who has done that thing before.......
|
7th May 2021, 2:13 pm | #8 |
Dekatron
Join Date: Apr 2019
Location: Worthing, West Sussex, UK.
Posts: 6,600
|
Re: Tape Speed Adjustment Rosita KL2600
Very good feedback that issue is resolved.
David |