Rom Board (Main Board) Replacement - Fujitsu ULTIMA90 Maintenance Manual

Installation
1. Install the power supply unit by reversing the removal procedure.
Reactor connector
( Only 200V models)

(16) ROM Board (Main Board) replacement

Removal
1. Remove the upper cover.
2. Remove the printer mechanism assembly.
3. Remove the LAN cables. Remove the bracket (2 screws).
4. Remove the 6 screws securing the ROM board (4 on the top and 2 on the side), and remove the ROM board.
5. The memory chip on the ROM board contains printer information (setup and counter data). Remove it from
the old ROM board and mount it on the ROM board to be installed.
Installation
1. Replace the NVRAM (memory chip) to put adjustment and set up information from old board into the new
board.
2. Install the ROM board by reversing the removal procedure.
AC switch assembly
Power supply unit
Figure 4.34 Power Supply Unit replacement
Power supply unit connector
Screws
59