A SERVICE OF

logo

7.
CONNECTOR LAYOUT AND SIGNAL ASSIGNMENT
7.1 Logic Board
CNPWR (Connection to AC Adaptor)
CNPGS (Purge Sensor Connector)
CNCR (Carriage Motor Connector)
CNLF (Paper Feed Motor Connector)
5-37
BJC-7100
Part 5: Maintenance
1
8
CNPWR
CNIF
1
18
19
36
CNLF
1
4
CNCR
1
4
1
3
CNPGS
CNHEAD1
1
1
2
2
27
28
29
28
CNHEAD2
Figure 5-16 Logic Board
Pin No.
1
2
3
4
5
6
7
8
Signal
VH
VH-GND
VM
VM-GND
VCC
VCC-GND
VHON
GND
IN/OUT
IN
...
...
IN
...
IN
OUT
...
Function
Head drive voltage (20.0 ± 0.3VDC)
VH GND
Motor drive voltage (27.6 ± 1.5VDC)
VM GND
Logic drive voltage (5.0 ± 0.25VDC)
VCC GND
VH output control
GND
Pin No.
1
2
3
4
Signal
CRA
CRB
CRB
CRA
IN/OUT
OUT
OUT
OUT
OUT
Function
A-phase drive voltage
B-phase drive voltage
B-phase drive voltage
A-phase drive voltage
Pin No.
1
2
3
4
Signal
LFA
LFB
LFB
LFA
IN/OUT
OUT
OUT
OUT
OUT
Function
A-phase drive voltage
B-phase drive voltage
B-phase drive voltage
A-phase drive voltage
Pin No.
1
2
3
Signal
LEDON
GND
PGS
IN/OUT
OUT
...
IN
Function
Photointerruptor LED drive voltage
GND
Purge unit module initial phase detection