Epson 440 - Manual (Page 39)

EPSON Stylus Color 440/640/740 Revision A
Chapter 1 Product Description 39
1.8.2 C206 Main-B Board (Stylus Color 440)
C206 Main-B board controls Stylus Color 440 and consists of following
major electric elements. This board will be changed to new board called
C255 Main board.
Figure 1-12. C206 Main-B Major Electric Elements
1.8.3 C256 Main Board (Stylus Color 640)
C256 Main board controls Stylus Color 640 and consists of following
major electric elements.
Figure 1-13. C256 Main Board Major Electric Elements
C N 1
B a t t 1
I C 7 ( H e a d )
C N 6 C N 7
I C 4 ( 4 M D - R A M )
I C 1 ( C P U )
I C 1 4 ( P F ) I C 1 5 ( C R )
I C 3 ( P - R O M )
I C 2 ( A s i c )
C N 1 0
Q 7 , Q 9 ( H e a d )
C N 8
E E P R O M
( I C 1 1 )
C N 3
C N 5
C N 4
C N 1 1
I C 1 4 ( P F )
I C 2 ( A s i c )
C N 1
C N 2
B a t t 1
I C 1 5 ( C R )
C N 1 0
I C 7 ( H e a d )
Q 7 , Q 9 ( H e a d )
C N 8
C N 6 C N 7
C N 3
C N 5
C N 4
C N 1 1
I C 1 6 ( P - R O M )
I C 6
I C 5 ( 4 M D - R A M )
I C 1 ( C P U )