Ricoh FT8680 Service Manual page 212

31 July 1995
10
SP Special Features
Item
Indicates the ROM's part number add its
suffix on the main PCB and operation
unit PCB
ROM Part Number Main 1: IC154
Main 2: IC127
Operation unit 1: IC138 (ROM0)
Operation unit 2: IC131 (ROMCG)
NOTE: The suffix of IC137 (ROM1) should be the same as that of IC138
(ROM0).
The suffix of IC155 should be the same as that of IC154.
Therefore, the part number indication of these ROMs are omitted.
A171M541.img
Function
4-35
SERVICE PROGRAM MODE