Canon BJC-55 Series, Service Manual

Page: 205 / 206

BJC-50 Part 5: Maintenance
1 2 3 4 5 6 7 8 9 10
A
B
C
D
E
F
G
CONTROL PCB ASS'Y 05
Vcc1 Vpp
VH VH
Vcc1
Vcc1
Vcc1
CRREF2
BCRM
BCRM
MTSTB
Q22
1 2
3
3
2
1
Q23
R94
10K,1/16W
R95
0.39,1/2W
R96
0.39,1/2W
R97
1.6K,1/16W
C70
0.1
µ
,25V
R102
15K,1/16W
C71
0.01
µ
,50V
C72
0.1
µ
,25V
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OA
OA
SGA
Sen.A
GND
GND
VrefA
PhA
PhA
Sth.
VM
OB
OB
SGB
GND
GND
Sen.B
VrefB
PhB
PhB
Carriage Motor Driver
IC12
C74
0.1
µ
,25V
C75
33
µ
,25V
R103
15K,1/16W
C76
0.01
µ
,50V
R98
1.6K,1/16W
R99
0.39,1/2W
R100
0.39,1/2W
C73
0.1
µ
,25V R101
10K,1/16W
CNCR1
4
3
1
2
B
B
A
A
CNLF1
1
3
4
2
5
COM
A
A
B
B
CRREF1
ACRM
ACRM
W-HT
TOPCC
ZD12
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
I1
I2
I3
I4
I5
I6
I7
GND
O1
O2
O3
O4
O5
O6
O7
COM
Paper Feed Motor Driver
IC15
C78
1
µ
,10V
R107
0.68,1/2W
D12
WHEAT
TOPC
ALFM
ALFM
LF-PRT
1
2
3
4
8
7
6
5
tpout
xout
xin
vss
vdd
sio
sck
cs
TIMER IC
IC13
X3
32.768KHz
R104
10K,1/16W
R106
10K,1/16W
D11
E-DO
1
2
3
4
8
7
6
5
NC
Vcc
CS
SK
NC
GND
DO
DI
EEPROM(2M)
IC14
R77
0.01
µ
,50V
R105
5.6K,1/16W
T-OE
E-OE
TE-CLK
TE-DIO
<02-A4>
<02-A4>
<02-A5>
<02-A5>
<02-A4>
<02-A4>
<02-F3>
<02-C1>
<02-C1>
<01-D10>
<02-A5>
<02-A4>
<02-B7>
<02-C7>
<02-A4>
<02-A4>
<02-A4>
<02-A4>
<02-A4>
MCH1
V2-ONC
MCH0
V3-ONC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
I1
I2
I3
I4
I5
I6
I7
GND
O1
O2
O3
O4
O5
O6
O7
COM
IC16
MCHE1
V2-ON
MCHE0
V3-ON
BLFM
BLFM
<02-A4>
<02-F1>
<02-C1>
<02-C1>
<02-B7>
<01-D8>
<02-A4>
<02-F6>
<02-B7>
<01-C10>
CNSEN1
6
7
1
2
5
4
3
Q24
2
1
3
Vcc1
R108
18K,1/16W
C80
1000p,50V
R110
22K,1/16W
R112
100K,1/16W
R113
180,1/10
R111
220,1/16W
PES
<02-F3>
HPS
<02-F3>
Vcc1
Vcc3
R109
18K,1/16W
R79
0.01
µ
,50V
CP1
CP2
<01-F3>
5-45