Canon PC920 Service Manual page 47

5. Inputs to and Outputs from the ADF
J60
-8
-7
-6
-5
To the ADF
-4
-3
-2
-1
J24
-4
-3
To the ADF -2
-1
+24V
+5V
+5V
+24V
Composite power supply PCB
COPYRIGHT © 1999 CANON INC.
J114-1
J202-1 J105-6
-2
-3
-4
-5
-6
Figure 2-109
CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 2 BASIC OPERATION
DC controller PCB
REQ
-2
-3
ACK
-4
-5
See Chapter 8.
TXD
-6
-7
RXD
-8
-5
-4
-3
-2
-1
2-11