Xerox 3450B Service Manual - Page 115
Main Board (PL 9.1.10
UPC - 095205120011
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Main Board (PL 9.1.10) Note If the NIC Board is installed, it must be removed (see page 8-17) to access the retaining screws for the Main Board. 1. Remove the Right Cover Assembly (page 8-7). Caution Observe proper ESD procedures when removing or replacing any circuit boards in the printer. Refer to "General Notes on Disassembly" on page 8-3. 2. Disconnect all connectors from the Main Board. Main Fan CN15 Laser CN10 Exit Motor CN8 Sub Fan CN21 Print Cartridge CN6 Front Panel CN4 Cover Open CN20 Erase Lamp CN17 Power Supply Board CN18 NIC Card CN9 CN5 (Not Used) Main Motor CN11 Connector Board CN14 RAM DIMM CN12 ROM DIMM CN16 Tray 3 CN1 CN7 (Not Used) s3450-194 3. Remove 6 screws securing the Main Board to the Main Board Bracket (4 on the right side of the printer and 2 from the rear of the printer). 8-18 Phaser 3450 Laser Printer Service Manual