Canon AS-100M, Field Service Manual

Page: 50 / 136

4.2.2 Switch setting and confirmation
Switch setting is required only the following four kinds of
system configuration.
1 MAIN UNIT (B/W, COLOR) + 5" FDD
2 MAIN UNIT (B/W, COLOR) + 8" FDD
3 MAIN UNIT (B/W, COLOR) + 5" FDD + 8” FDD
4 MAIN UNIT (B/W, COLOR) + 8" FDD + 8" FDD
Necessary to confirm and set the switches in the P.C.B according
to each system configuration.
(1) Description of the switch bits in each P.C.B
(I) CPU+I/O-CONT P.C.B
o SW1 (Printed name)
Clock chip
Provided: OFF
Not provided: ON
Unused
(Set at the OFF
position)
■Future use
Future use
rON:
0
lOFF: 1
Table 4.2.3