Ricoh FT556 Service Manual page 198

E : Motor speed = 2,612 rpm
XAMPLE
When SW 101 is not pressed, "26" is dis-
played.
When SW 101 is pressed, "12" is displayed.
7. Adjust the motor speed to 2,600 ± 30 rpm
by turning VR103 on the DF main board.
8. Turn off the main switch, return DIP SW 101
to the normal position, and reassemble. (DIP
SW 101-1 and 101-3 are on and all others
are off.)
31 March '87
3-69