Canon NP6621 Service Manual page 74

OPERATIONS AND TIMING
3. Inputs to and Outputs from the Cassette Feeding Unit-K1 Driver PCB (3/3)
Cassette 3
CL1cu
pick-up clutch
Cassette 4
CL2cu
pick-up clutch
Cassette 5
CL3cu
pick-up clutch
Pick-up
M1cu
motor 1
Pick-up M2cu
motor 2
3–18
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Cassette feeding unit driver PCB
J135
- 1
- 2
J135
- 3
- 4
J135
- 5
- 6
J114- 1
- 2
- 3
- 4
- 5
- 6
J134-1
-2
-3
-4
-5
-6
J103-6
Figure 3-118
COPYRIGHT © 1998 CANON INC.
DC controller PCB
24V
C3PUCLD*
When '0', CL1cu turns ON.
24V
C4/5PUCLD*
When '0', CL2cu/CL3cu turns on.
24V
COM A
A
While M1cu/M3cu is rotating,
A*
alternates between '1' and '0'.
COM B
(pulse signal)
B
B*
J1-26
SELECT *When '0',
of CL2cu/CL3cu, CL2cu is selected.
of M1cu/M2cu, M1cu is driven.
The cassette size is of cassette 4.
of PS4/PS7cu, PS4cu is detected.
*When '1',
of CL2cu/CL3cu, CL3u is selected.
of M1cu/M2cu, M1cu/M2cu is driven.
The cassette size is of cassette 5.
of PS4/PS7cu, PS7cu is detected.
*When '0', cassette 4 input/output is
selected; when '1', cassette 5
input/output is selected.
CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)