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GENERAL DESCRIPTION
1.5.2 Main Control Board (C204 MAIN Board)
The C204 MAIN board is a main controller board. The board contains following ICs:
Cl l&bit CPU:
TMP95C051A; 24.57 MHz (ICZ)
0 Gate array:
E05B36 (ICl)
0 PROM (including C.G.) : 2M-bit (IC5)
3
RAM
4M-bit (IC14)
0
ADM232L
RS-232C level converter (IC9)
Q RESET IC
PST391QIC13)
0 EEPROM
93066 (ICil)
There are two types of C204 MAIN board used as after service parts. The following Table shows
differences between them.
Figure l-26. C204 MAIN Board
Table l-24. Color Attribute
) For USA and Pacific
1 For Europe
Serial I/F Hexagonal-head screw type
1 Inch
1 Metric
Rev. A
1-39