Xerox 3450B Service Manual - Page 116

Main Drive Assembly (PL 9.1.11), Replacement Notes

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4. Position the retainers on the parallel port connector straight out from the connector for removal. Move the board toward the front of the printer so the connectors clear the bracket and remove the Main Board to the right. 1 s3450-016 Note NVRAM parameters are not transferable to the replacement board. These parameters include Serial Number and copy count. Serial Number can be reinstalled via CentreWare if the NIC Board is installed or via a downloadable PJL command. Replacement Notes Note When reinstalling the Main Board, the short machine screw goes in the top right corner of the board. Main Drive Assembly (PL 9.1.11) 1. Remove the Right Cover Assembly (page 8-7). 2. Disconnect CN 14 connecting the Registration Clutch to the Connector Board (see "Map 2 Connector Board" on page 10-4). 3. Disconnect CN 1 from the Main Drive Assembly. The cable connects to CN 11 on the Main Board (see "Print Engine Interconnect Diagram" on page 10-2). 4. Remove 1 screw securing the AC Terminal Cover to the Main Drive Assembly and remove the cover. Service Parts Disassembly 8-19

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Service Parts Disassembly
8-19
4.
Position the retainers on the parallel port connector straight out from the
connector for removal. Move the board toward the front of the printer so the
connectors clear the bracket and remove the Main Board to the right.
Note
NVRAM parameters are not transferable to the replacement board. These
parameters include Serial Number and copy count. Serial Number can be
reinstalled via CentreWare if the NIC Board is installed or via a
downloadable PJL command.
Replacement Notes
Note
When reinstalling the Main Board, the short machine screw goes in the top
right corner of the board.
Main Drive Assembly (PL 9.1.11)
1.
Remove the Right Cover Assembly (page 8-7).
2.
Disconnect CN 14 connecting the Registration Clutch to the Connector Board
(see "Map 2 Connector Board" on page 10-4).
3.
Disconnect CN 1 from the Main Drive Assembly. The cable connects to CN 11
on the Main Board (see "Print Engine Interconnect Diagram" on page 10-2).
4.
Remove 1 screw securing the AC Terminal Cover to the Main Drive Assembly
and remove the cover.
1
s3450-016