Xerox 8830 Service Manual page 540

Replacement
1. (Figure 2): Place the new Control PWB in position, ensuring that the
ribbon cable for J4 comes over the top of the PWB.
2. (Figure 1): Install the 3 external fiat washers, lock washers, and
mounting screws.
3. Install the 3 standoff attachment screws
4. Connect the connectors shown in Table 1.
5. (Figure 1): Set the SCSI Address Switch to the same address as
was set on the removed Control PWB.
6. Switch on the Scanner.
7. Switch on the SIM/XPC or the Host Computer.
8. Configure the system for diagnostics. Go to Section 6 for more
information.
9. Start the diagnostics program.
10. Install the current scanner firmware disk in the floppy disk drive of
the controlling computer.
11. Select Download Code from the Service Diagnostics Menu
screen.
12. Click on the Scanner Firmware button, and compare the version
number in the Scanner with the version number on the floppy disk.
Do not allow any interruption of the download code
process once the download has begun. Any interruption
may corrupt the Scanner PROMs, destroying the ability
of the Control PWB to communicate and requiring
replacement of the Control PWB.
14. If the version number on the floppy disk is more recent, then select
the Begin button to download the scanner firmware.
15. When the download is complete, or if a download is not to be made,
select the Exit button.
REP 4.1.10
CAUTION
16. Use the diagnostics program to do the following adjustments:
• ADJ 4.1.3 Front to Back Stitch
• ADJ 4.1.4 Left to Right Stitch
• ADJ 4.1.1 Calibrate Motor Speed
• ADJ 4.1.2 Calibrate Document Registration.
If the tests cannot be completed successfully, go to Section 2 and isolate
the fault.
17. Install the Right Side Panel (REP 4.1.1).
18. Configure the system for normal operation.
Figure 2. Top Edge - Control PWB
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7356 SCANNER