In case of adjusting Tape Speed, you can easily to adjust RV601 by removing 7 claws on Window (LCD) and itself as shown in the figure.
1.Insert the precision screwdriver (Cover a point by cloth) in to the slit at claw.
2.Remove the window(LCD).
Note: Be careful not to damage claws.
Claws
LOCATION AND FUNCTION OF CONTROLS
SECTION 1
SERVICING NOTE
Claws
Window(LCD)
SECTION 2
GENERAL
WM-FX277
Claws
RV601
This section is extracted from
instruction manual.
3