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GENERAL DESCRIPTION
Rev. B
1-
3
9
1.5.2 Main Control Board (C204 MAIN Board)
The C204 MAIN board is a main controller board. The board contains following ICs:
16-bit CPU: TMP95C051A; 24.57 MHz (IC2)
Gate array: E05B36 (IC1)
PROM (including C.G.) : 2M-bit (IC5)
RAM 4M-bit (IC14)
ADM232L RS-232C level converter (IC9)
RESET IC PST391D(IC13)
EEPROM 93C66 (IC11)
There are two types of C204 MAIN board used as after service parts. The following Table shows
differences between them.
Table 1-24. Color Attribute
For USA and Pacific For Europe
Serial I/F Hexagonal-head screw type Inch Metric
Figure 1-26. C204 MAIN Board