Fujitsu Impact 3650, Руководство по обслуживанию

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(15) 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.
Mount the memory chip on the IC socket with the dent facing the printer cable connector.
To reset the NVRAM see the procedure as follows.
(Note, Resetting NVRAM requires adjustment and setting up. If you don’t know set up value don’t reset
NVRAM)
To all clear NVRAM ;
To reset SET-UP ;
Figure 4.28 Rom board removal and installation
Screws
Memory chip
(dent side)
Screws
ROM Board
Screws
connector
NVRAM
LAN Card slot
Don’t mount the memory chip
in the wrong direction