Denon UD-M31 Service Manual page 8

WAVE-FORMS OF EACH POINT
SP
SP
FE
TE
DRF
RF
SL
TE
SL
OPEN
CLOSE
When 12 cm DISC
start
SP
When 8 cm DISC
start
SP
TD
When focus
TE
servo on
RF
DRF
SL
Track search
(when forward)
TE
During PLAY
FD
When the tray
OPEN
8
UD-M31 8
When 12 cm DISC
stop
When 8 cm DISC
stop
During PAUSE
Track search
(when reverse)
Focus search
(no DISC)