Denon D-107 Service Manual page 15

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Loader Mecha Timing Chart
Timing Chart when close
49 pin
Hi
DISC_SW
Lo
50 pin Hi
12cm_SW
Lo
46 pin Hi
CLOSE_SW
Lo
IC101
47 pin Hi
µcom
OPEN_SW
Lo
Input
43 pin Hi
Port
IN_SW
(Retract Position) Lo
44 pin
Hi
CLAMP_SW
Lo
(Clamp Position)
45 pin Hi
OUT_SW
(Eject Position) Lo
33 pin Hi
DISC_DOWN
Lo
54 pin
Hi
Holder Motor (up)
(F. IN) Lo
IC101
53 pin Hi
µcom
Holder Motor (down)
(R. IN)
Lo
Output
Port
56 pin Hi
Door Motor (open)
(FWD) Lo
57 pin
Hi
Door Motor (close)
(REV)
Lo
OUT_SW→
Holder
CLAMP_SW→
IN_SW→
OPEN_SW→
Door
3
1 sec.
Descends holder after 1sec. when
↑ 1. Disc Detect
DISC_SW(H) and 12cm_SW (L)
conditions are satisfied.
↑ 1. Disc Detect Defines as 8cm disc insertion in case of
DISC_SW(H) and 12cm_SW (H), and
repeats holder up/down 10 times.
↑ 3. Holder Down Stop
↑ 4. Holder Slowdown Start (pulse decline start)
↑ 2. Holder Down Start
DISC_DOWN signal: Voltage control terminal
of holder motor which becomes "H" when
descending holder (disc) and "L" when others.
↑ Holder Down (While CLAMP_SW: Lo) ↑ 20msec, 20msec Pulse Decline (while CLAMP_SW: Hi)
↑ STOP
↑ BRAKE (80msec)
↑ STOP
1. Disc Down Section (open corrective period) 2. Slowdown Period
(Monitor timer: 6sec.)
Close Monitor Timer: 12sec.
OUT_SW→ OUT_SW→
Holder Position
Detect Shutter
CLAMP_SW→ CLAMP_SW→
IN_SW→ IN_SW→
Door Position
Detect Shutter
OPEN_SW→
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↑ 7. Door Close Stop
↑ 8. Holder Retract Start (pulse decline start)
↓ 6. Door Close Start (pulse open 4 times + door open)
↓ 5. Holder Slowdown End (pulse decline stop)
↑ 10msec, 10msec Pulse Decline (while IN_SW: Lo)
↑ Close with 20msec, 20msec Pulse (4 times)
↑ Door Close (while CLOSE_SW: Lo)
↑ STOP
↑ 50msec Wait
↑ BRAKE (200msec)
↑ STOP
3. Door Close 4. Retract Section
(Monitor timer: 2sec.) (Monitor timer: 5sec.) (Monitor timer: 2sec.)
* When monitor time-out, it reverts to open motion
OUT_SW→
CLAMP_SW→
IN_SW→
CLOSE CLOSE
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↓ 9. Holder Retract End (pulse decline stop)
D-107
8
A
B
C
D
E
15