Hey guys my playback is coming out all warped and it either SPEEDS up or SLOWS down. I bought the fostex on ebay. I haven't cleaned the tape deck. Everything else is in perfect condition. Im using 77 tapes .
Fostex don't offer a service manual for the X-12 on their web site, although it may be available if you ask on the user forum.
They do offer a service manual for the X-15 which may give you information to sort your problem out.