Epson ColorPage EPL-C8200 Service Manual page 140

EPSON ColorPage EPL-C8200
Table 2-26. C287MAIN Board Major Components (2/3)
Components Location
AD9561 IC26 8-bit PWM controller (directly connected to
E05B64)
TC55V1325FF IC25 S-RAM (1M-bit) Directly connected to
*1 E05B64.
X25128SI IC20
128K-bit EEPROM, which stores vari-
ous printer setting information.
SG-8002 CR2 Video clock operating at 54.8932MHz.
( E05B64)
MA-406 CR3 Master clock operating at 66.7000MHz.
( CPU, SDRAM, E05B51, E05B53, and
so on.)
ACT1284 IC23/39/ Bus driver for IEEE1284ECP
40
NDB6020P QF1 FET driven at 3.3 VDC
M51953B *1 IC5 Reset IC
LM3411 IC27 Regulator (3.3 VDC)
W154H IC42 Clock driver
Code DIMM CN2 Socket P. DIMM with a 4MB FLASH ROM
mounted.
(C269 PROG)
CN3/4/5 Sockets A/B/C. Specific optional ROMs are
installed.
SDRAM DIMM CN8/9/10 • Slots S0/S1/S2 (Standard: 64MB DIMM
*1 is installed in S0.)
• S0: A DIMM must be always set in this
slot.
• S1/S2: A DIMM whose space area is 32,
64, or 128MB can be set in each slot.
• The maximum memory size recognized
by the C287MAIN board is 256MB.
DL10019C IC500 Network controller IC
LXT970A IC501 PHY
*1: Common to the EPL-C8000.
*2: The number of the C287MAIN circuit diagram to refer to.
Chapter 2 Operating Principles
Refer to:
Function
*2
5/7
5/7
4/7
5/7
6/7
4/7
6/7
1/7
6/7
6/7
2/7
2/7
3/7
7/7
7/7
Table 2-27. C287MAIN Board Major Components (3/3)
Components Location
W24257AJ-15 IC502/ S-RAM (256k-bit). A high speed working
IC503 RAM for DL10019C.
NM93CS56 IC504 EEPROM. Stores network controller
settings, MAC address, and hardware
revision.
SG-8002JCPT CR500 Network clock operating at 50.000 MHz.
( Network circuit)
PE-68517 T500 Transistor
*1: Common to the EPL-C8000.
*2: The number of the C287MAIN circuit diagram to refer to.
Revision A
Refer to:
Function
*2
7/7
7/7
7/7
7/7
2-77