Hello
I have the following problem with a RS 1500:
After switching on the machine, it needs about 8-12 minutes to accelerate to the right playback speed. It always starts about 10% below the exact speed. There is no difference, if the variable speed is switched on or off, the pitch range remains the same; too slow.
I cleaned the switches and contacts, followed the alignment procedure, reseated the capstan control board, checked the connectors.
The tape path is clean and the reel tensions are fine too. After switching the machine off and on, the same procedure happens again. I checked all the diodes and changed all electrolyte capacitors on the capstan control board, nothing changed...
I have another excellent working 1500 and a 1700. Before I'll try out to change some parts of these working machines into the 1500 to locate the error, I'll be glad, if someone has an advice or experienced the same problem.
Greetings from Studer-Nation, Switzerland
Jens
Studer A-80 RC MK IV, Studer B-67 MK II, Revox C-270, Technics RS-1500/RS-1700, ASC-6000T/6002, Tandberg TD-20A-SE, TEAC X-2000M, Braun TG-1000, Uher SG 561 logic.