Home |
Search |
Today's Posts |
#1
Posted to rec.audio.tech,rec.audio.pro
|
|||
|
|||
Revox A77 Capstan Servo
My high speed A77 is running too fast. The service manual description of the
capstan servo talks about a resonant circuit used as a discriminater but the circuit shows an NE555 instead. It's an old A77 and the capstan servo PCB looks like is has the resonant circuit - no sign of the 555. I have gone back through capstan servo circuits at the Studer web site and the only one with a resonant circuit is in the A80. So I don't have a definitely correct circuit for the capstan servo - need advice on how to diagnose & fix this problem. Cheers Ian |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Revox A77 Capstan Servo | Pro Audio | |||
revox b215 service & repair needed | High End Audio | |||
Revox B215 - repair / service needed | Tech | |||
Revox A77 Update | Tech | |||
Revox Phase Inverter Circuit? | Vacuum Tubes |