Canon BJC 50 - Color Inkjet Printer Service Manual page 184

BJC-50
1 2
Vcc3 Vcc3 Vif
R68 R69 R70 R71
390,1/8W 5.6K,1/16W 1K,1/16W 1K,1/16W
CNIF1
STROBE 1
DATA1 2
DATA2 3
DATA3 4
DATA4 5
DATA5 6
DATA6 7
DATA7 8
DATA8 9
ACK 10
BUSY 11
PE 12
NC 13
NC 14
SLCT 15
AUTXT 16
+5V 17
INPRM 18
FAILT 19
+5V 20
SELIN 21
S-GND 22
NC 23
S-GND 24
S-GND 25
NC 26
Option ASF
OP-VH
CNOP1
ZD10
1
2
L4
3
L5
4
5
R85
1K,1/16W
6
7
8
3 4 5
R72 R73
100,1/16W 1K,1/16W
C49
RA4 RA5 1000p,50V
C50 C51 C52
1000p, 1000p, 1000p,
50V 50V 50V
RA6 RA7
R78
1K,1/16W
R87 R88
100,1/16W 1K,1/16W
C62
C61
1000p,
0.01 ,50V
50V
R89
1K,1/16W
DA8
DA8
DA7
DA7
Vcc1
TH1
R86
47K,1/16W
6 7
STB BZOUT
<02-F4> <02-F3>
IFD0
<02-F5>
IFD1
<02-F5>
IFD2 PW-LED
<02-F5> <02-F3>
IFD3
<02-F4>
IFD4
<02-F4>
IFD5
<02-F4>
IFD6 ERR-LED
<02-F4> <02-F3>
IFD7 BATT-LED
<02-F4> <02-A2>
C53 C54 C55 C56 C57
1000p, 1000p, 1000p, 1000p, 1000p,
50V 50V 50V 50V 50V
AUTXT NMI
<02-F4> <02-G3>
ACK
<02-F4>
PWRON
BUSY
<02-F4>
<01-F3>
PE
<02-F4>
SLCT
<02-F4>
FAULT CC-SW
<02-F4> <02-F2>
INIT
<02-F4>
C63 C64 C65 C66
1000p, 1000p, 1000p, 1000p,
50V 50V 50V 50V
SELIN RCV-SW
<02-F3> <02-F3>
OP-Vcc
4 3 CHGLEV <01-D5>
<03-G5>
2
1 5
RXD0
<02-A2>
2
TXD0 MODE
<02-A4> <02-F3>
4 3
SCLK0
<02-F3>
(PES)
Vcc3
2
1 5 RXD
<02-G3>
OP-ON TXD
<01-F10> <02-F3>
2
TH
<03-G5>
8 9 10
CONTROL PCB ASS'Y 04
Vcc1
R74
BZ1 BZ
1.5K,1/16W
2
3
Q21
1
Vcc1
R75 300,1/16W
LD1
1 4
R76 300,1/16W
K A
R77 300,1/16W 2 3
K A
LD2
Vcc1
R80
10K,1/16W D14
SW1
SW2
C58
0.01 ,50V
GND
Vcc1
R81
10K,1/16W
SW3
C59
0.01 ,50V
GND
Vcc1
R82
10K,1/16W
SW4
C60
0.01 ,50V
GND
Vcc1
CNIR1
1 (IR)
L3 0.1A 2
3
C67 C68
4
0.1 ,25V 0.1 ,25V 5
6
7
R90 8
68,1/16W
9
R92
C69 10
12,1W
4.7 ,10V
R93
12,1W
Part 5: Maintenance
A
B
C
D
E
F
G
5-44