Main Control Board (C204 Main Board) - Epson DFX-8500 Service Manual

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:
‰
Gate array:
‰
PROM (including C.G.) :
‰
RAM
‰
ADM232L
‰
RESET IC
‰
EEPROM
There are two types of C204 MAIN board used as after service parts. The following Table shows
differences between them.
Serial I/F Hexagonal-head screw type
Rev. B
TMP95C051A; 24.57 MHz (IC2)
E05B36 (IC1)
2M-bit (IC5)
4M-bit (IC14)
RS-232C level converter (IC9)
PST391D(IC13)
93C66 (IC11)
Figure 1-26. C204 MAIN Board
Table 1-24. Color Attribute
For USA and Pacific
Inch
GENERAL DESCRIPTION
For Europe
Metric
1-
39