Denon D-107 Service Manual page 16

1 2
Loader Mecha Timing Chart
Timing Chart when open
49 pin Hi
DISC_SW
Lo
50 pin
Hi
8cm_SW
Lo
46 pin Hi
CLOSE_SW
Lo
IC101
µcom
47 pin Hi
OPEN_SW
Input
Lo
Port
43 pin Hi
IN_SW
(Retract Position)
Lo
44 pin
Hi
CLAMP_SW
(Clamp Position) Lo
45 pin Hi
OUT_SW
(Eject Position)
Lo
33 pin Hi
DISC_DOWN
Lo
54 pin Hi
Holder Motor (up)
(F. IN)
Lo
IC101
µcom
53 pin Hi
Holder Motor (down)
Output
(R. IN)
Lo
Port
56 pin Hi
Door Motor (open)
(FWD)
Lo
57 pin Hi
Door Motor (close)
(REV)
Lo
OUT_SW→
Holder
CLAMP_SW→
IN_SW→
Door OPEN_SW→
CLOSE_SW→
3 4
↓ Open Key Press
↑ 4. Door Open Start
↓ 3. Door Pulse Open Start (pulse open)
↓ 2. Holder Receiving End (pulse rise stop)
↑ 1. Holder Receiving Start (pulse rise start)
↑ 20msec, 10msec Pulse Rise (while CLAMP_SW: Hi)
(10msec BREAK)
↑ 20msec, 20msec Pulse Open (while CLAMP_SW: Hi, or 15 times)
↑ Door Open (while OPEN_SW: Lo)
1. Receiving Period 2. Door Open Section
(Monitor timer: 2sec.) (Monitor timer: 5sec.)
Close Monitor Timer: 12sec.
* It stops when monitor time-out
OPEN OPEN
OPEN_SW→ OPEN_SW→
CLOSE_SW→
5
↑ 5. Door Open Stop
↑ 6. Holder Up Start
↑ 7. Holder Up End
↑ Holder Up (while OUT_SW: Lo)
↑ STOP
↑ BREAK (200ms)
↑ STOP
↑ STOP
↑ STOP
3. Disc Up Section (open corrective period) 4. Open Finish Section
(Monitor timer: 6sec.)
OUT_SW→ OUT_SW→
CLAMP_SW→ CLAMP_SW→
IN_SW→ IN_SW→
6 7
↓ Unload Disc
D-107
8
A
B
C
D
E
16