Canon GP405 - Page 491

COPYRIGHT © 1999 CANON INC. CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
14-73
CHAPTER 14 TROUBLESHOOTING
J714
1234
J701
5.1V VSS 3.4V VSS
Image processor PCB
J440
123
J104-A
M
M4
J46
Laser scanner
motor
12
3
4
M4LCK M4D 0V
1234
J603
34
J600
123
J445
VSS
38V
Low-voltage PCB
DC controller PCB
16 15 14
5 6 7
TXD0* 0V RXD1*
Check continuity.
Check disconnection.
Figure 14-406 E110