CHAPTER 11 SYSTEM INTEGRATION
11-6
COPYRIGHT © 1999 CANON INC. CANON imageRUNNER 400/330 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
C. Hardware
The following shows the connectors, LED, ROMs, and fuse used on the board:
Fu101
(SCSI)
IC112S
(4MB PROM)
J8501
System motherboard
J8503
(SCSI-2)
J8502
(SCSI-2)
LED101
CPU
Image memory
(DRAM 10MB)
Figure 11-202
Item
J8501
J8502/J8503
Fu 101
LED 101
IC112S
Description
Used it for connection to the system motherboard.
Use it to connect the host computer/terminator (shared).
Use it to prevent overcurrent to the SCSI PCB. E603 will be indicated when Fu101
blows.
<LED is On or Off>
The CPU on the SCSI PCB is not operating (faulty PCB). E601 is indicated on the
control panel.
<LED is Flashing (on for 0.2 sec; remains off longer)>
The CPU on the SCSI PCB is operating, but the cable connection is poor or the PCB is
faulty. E601 is indicated on the control panel.
<LED is Flashing (off and on at intervals of 0.5 sec)>
The operation is normal.
Used for SCSI.
Table 11-202