Location & Signal Assignment; Logic Board - Canon BJC-1000 Service Manual

BJC-1000
5. LOCATION & SIGNAL ASSIGNMENT

5.1 Logic Board

J1/CNH (Ribbon cable connector)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
4
2
J2
1
J1
31
32
Figure 5-3 Logic Board
Signal name IN/OUT Description
Not used
HPS-A OUT
GND ...
HPS IN
HSEG7 OUT
HCOM3 OUT
GND ...
HRANK3 IN
HRANK2 IN
HRANK1 IN
ID1 IN
HCOM5 OUT
ID3 IN
HCOM6 OUT
ID2 IN
GND ...
HCOM7 OUT
HSEG3 OUT
HCOM4 OUT
HSEG2 OUT
HCOM8 OUT
HSEG1 OUT
HSEG4 OUT
HEATER OUT
GND ...
HCOM2 OUT
HCOM1 OUT
HSEG8 OUT
HSEG6 OUT
HSEG5 OUT
HEATER OUT
GND ...
5
J4
1
1
5
J3
1
18
Photo LED drive
Ground
Home position sense High / Low (sense)
SEG7 heat enable
COM3 heat enable
Ground for head rank
Head rank sense
Head rank sense
Head rank sense
BJ cartridge recognition signal (See Table 5-1. )
COM5 heat enable
(Not used)
COM6 heat enable
BJ cartridge recognition signal (See Table 5-1 .)
Ground
COM7 heat enable
SEG3 heat enable
COM4 heat enable
SEG2 heat enable
COM8 heat enable
SEG1 heat enable
SEG4 heat enable
Warm-up heater voltage VH and Detection signal
GND for warm-up heater voltage VH
COM2 heat enable
COM1 heat enable
SEG8 heat enable
SEG6 heat enable
SEG5 heat enable
Warm-up heater voltage VH and Detection signal
GND for warm-up heater voltage VH
5-21
Part 5: Maintenance
19
J5
36