Image Processor Board; Figure 8-14 Removing The Image Processor Board - Tektronix Phaser 550 Service Manual

Image processor board

1. Power down the printer. Disconnect all host interface cables.
2.
Remove the upper rear cover as explained in the earlier topic, "Upper
rear cover" on page 8-2.
3. Disconnect the image processor's data wiring harness from the engine
control board. Disconnect the power wiring harness from the
underside of the image processor board.
4.
Remove the two screws securing the board's rear panel to the printer.
5. Grasp the rear panel and slide the board out of the printer card cage.
Reverse these steps to reinstall the board.
If you are replacing the image processor board, exchange the NVRAM IC and
the Ethernet address ROMs between the two boards. The 8-pin NVRAM chip
contains important customer-created parameters. The printer may not operate
correctly without the NVRAM IC being swapped. The socketed NVRAM IC is
located near the RAM SIMMs. The 16-pin Ethernet address ROM is located
above the network card connector.
Disconnect data
wiring harness
Remove
screws
Disconnect power
wiring harness

Figure 8-14 Removing the image processor board

FRU Disassembly/Assembly
Image
processor
board
9013-41
Service Manual
8
8-23