Epson Stylus CX3700 - Page 60

EPSON Stylus CX3700/CX3800/CX3805/CX3810/DX3800/DX3850 Revision A
OPERATING PRINCIPLES Electrical Circuit Operating Principles 60
The block diagram for the sensor circuit is shown below.
:
Figure 2-22. Sensor Circuit Diagram
CN4
Scanner HP
Sensor
CN7
• CR
Encroacher
Sensor
• CSIC
DACDAT
CO
CCLK
CDIO
CXRST
EA_CR
EB_CR
EA_PF
EB_PF
D13
A10
B12
B11
A11
B10
A9
A16
B16
CPU
(IC8)
PF Encoder
(P1)
PE
SCNHP
AN1
D5
F20
A5
5
1
6
2
3
11
9
CVDD
COI
CSCK
CSDA
CRST
ENCA
ENCB
PEV
GND
PE
PEV
GND
SCN_HP
XHOT/
THM
3
2
1
3
2
1
7
CN5
THM
CN3
PE Sensor
VOA
VOB
VCC
GND
A
A
+3.3V_SN
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V_SN
+3.3V
+3.3V_SN
+3.3V_SN