Circuit Diagrams; Logic Board - Canon BJC-8500 Service Manual

BJC-8500

8.2 Circuit Diagrams

8.2.1 Logic board

1 2
MPU
LFB
<11-F3>
LFA
<11-D3>
+5V +5V
R261 R262 R203
10K, 10K, 10K,
1/16W 1/16W 1/16W
LFI1
<11-D3>
CRPWM
<09-E2>
LFI0
<11-D3>
PGI0
<10-D3>
PGI1
<10-D3>
+5V +5V +5V +5V
R226 R206 R207 R208 R209
10K, 10K, 10K, 10K, 10K,
1/16W 1/16W 1/16W 1/16W 1/16W
EECS
<04-B1>
CP4
SW0
<08-E8>
SW1
<08-E8>
SW2
<08-F8>
H5VON
<06-B6>
IREQ3
<02-E2>
C221 C222 C223 R204
1000p, 1000p, 1000p, 10K,
50V 50V 50V 1/16W
*
No parts are inserted on ICS201
3 4
+5V +5V +5V
R215 R214 R213
10K, 10K, 10K,
1/16W 1/16W 1/16W
+5V
R223
10K,
1/16W
R219 R225 R224 R227
10K, 10K, 10K, 10K,
1/16W 1/16W 1/16W 1/16W
*
ICS201
+5V +5V +5V +5V
C201
R202 R201 0.1 ,25V
1 1
10K, 10K, VCC
2 2
1/16W 1/16W
PB0
3 3
PB1
4 4
PB2
5 5
PB3
6 6
PB4
7 7
PB5
+5V +5V 8 8
PGB
<10-F3>
PB6
R216
PGA 9 9
<10-D3>
PB7
10K, 10 10
VSS
1/16W CP25 11 11
PC0
12 12
PC1
<FTSTI0> 13 13
PC2
14 14
PC3
15 15
PC4
16 16
PC5
CP20 17 17
PC6
CP19 18 18
PC7
CP14
19 19
RES0
20 20
EEDI
<04-B1> P90
CP31 21 21
P91
EEDO 22 22
<04-B1>
P92
CP29 23 23
P93
24 24
EECK
<04-B1> P94
CP27 25 25
P95
26 26
VSS
27 27
0
D0
1 28 28
D1
R270
+5V 10K,
1/16W
5 6 7
R231 R232 R233 R234
3.3K,1/16W 3.3K,1/16W 1K,1/16W 1K,1/16W
C232 C234 C236
4700p, 4700p, 4700p,
50V 50V 50V
CP8
R254 R252 R235
10K, 10K, 10K,
1/16W 1/16W 1/16W
+5V
C206 C212 C208 C209
0.1 , 1000p, 1000p, 1000p,
25V 50V 50V 50V
+5V
84 84
AVCC C203
83 83
MD2 0.1 ,25V
82 82
MD1
+5V
81 81
MD0
80 80
LWR FB205
79 79
HWR
FB204
78 78
RD FB203
77 77
AS FB202
76 76
VCC
75 75 C205
XTAL
0.1 ,25V
74 74
EXTAL
73 73 +5V C202
VSS
0.1 ,25V
72 72
NM1
71 71
MPU
RES
70 70
IC1 STBY
69 69
CLK
FB201
HD6413003TF16CN
68 68
P62
67 67
P61
66 66
P60
65 65
A19
64 64
A18
63 63
A17
62 62
A16
61 61
A15
60 60
A14
59 59
A13
58 58
A12
57 57
A11
+5V
C204
0.1 ,25V
8 9
+5V
R240
10K,1/16W
IZSEN
<08-B8>
PHASE
<03-A1>
R253
10K,
1/16W
HTEMPB
<06-F6>
HTEMPA
<06-F6>
HRANK
<06-B6>
R220
4.7K,1/16W
C211 RESET IC
1000p,
IC201
50V
1
Vout
GND
2
WD
<03-A10> MaRes
PST593EMT
R230
10K,1/16W
BK1608HS102 LWR
<02-E2>
BK1608HS102 HWR
<02-E2>
BK1608HS102 RD
<02-E2>
BK1608HS102
AS
<02-E2>
CP516
CKOUT
<02-F2>
+5V
Q201
DTC143EKA
RESET R211
<02-D2,04-E10>
10K,1/16W
BK1608HS241 CKIN
<02-G2>
CP13
CP202 P11ON
WAIT
19
18 R221 R251
17
10K,1/16W 10K,1/16W
16
15
14
13
12
11
24 CAD <23..0>
16
CDT <15..0>
Part 5: Maintenance
10
LOGIC BOARD 01
A
B
+5V
C
C207
0.1 ,25V
4
3
Vcc
D
J201
FB210
BK1608HS102
E
<07-E9>
<02-G2>
F
<02-G10,04-C1>
<02-G10,04-F1>
G
5-53