Epson DFX 8500 Service Manual page 47

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