FIRMWARE UPDATE (I/O ROM)
C267 3-66 SM
3.12 FIRMWARE UPDATE (I/O ROM)
The I/O control firmware in the EPROM on the MPU can be updated by replacing
the EPROM.
1. Before upgrading the I/O ROM firmware, check the current ROM version with
SP1-74.
2. Turn off the main switch and disconnect the power plug.
3. Remove the rear cover.
4. Replace the EPROM [A] on the MPU.
5. Connect the power plug and turn on the main switch.
6. Access SP1-74 and confirm that the ROM version was changed.
NOTE: If you upgrade the main firmware, refer to section 5.9.2.
3.13 SPECIAL TOOLS
The following are the special tools used for service.
Description Part number Note
Scanner positioning pins (4 pins as a set) A0069104 3.4.7
Flash memory card – 4MB N8036701 5.9
C267R045.WMF
[A]
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