A
B
C
D
E
F
G
H
I
J
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
2A3/4
Main PCB
1
/
9
3-7-17
OFSW
R481
2
1
3
4
7
8
6
5
RA86
1
2
4
4 2C
5 1C
2B
E
1B
3
2
1
3
RA66
1
2
4
3
RA69
TR16
3 2C
2B 5
6 1C
1B 2
2E
1E
1
4
TR18
3 2C
2B 5
6 1C
1B 2
2E
1E
1
4
TR19
3 2C
2B 5
6 1C
1B 2
2E
1E
1
4
TR20
6
5
7
8
3
5
6
11
10
4
2
1
RA90
IC52
9
8
13
12
C282
C240
C238
C239
R391
C281
C283
C284
OSBSW
SHPSW
DFTSW
CN14
–
2
SCANNER START
T
×
D SCANNER
ENGHEAD
–
SCAN
SCANNER ACK
R
×
D SCANNER
RESET SCANNER
ENGACK
–
SCAN
R507
R503
R505
R508
R504
R506
R501
R502
R454
IC52
1
2
IC52
3
S G
TR25
4
2E
2C
1C
6
3
2
5
1B
1E
1
1E
1
2B
S G
S G
S G
S G
S G
S G
S
XT5
R392
G
S G
S G
S G
S G
E
B
C
S
1
2
3
1
2
3
4
1
2
3
4
8
7
6
5
8
7
6
RA71
R390
R389
R387
R388
RA70
5
D7
D6
D5
D4
D3
D2
D1
D0
15
14
13
12
11
10
9
7
A
IC39
RA41
TR17
EL ON REM
CN5
–
14
CN5
–
3
ODSW
CN14
–
3
OSSW
CN14
–
6
DF SHORT
CN14
–
8
DFSSW2
CN14
–
9
DFSSW1
CN14
–
10 OSLSW
CN13
–
A5 OFCL
CN5
–
1
CN13
–
A1
CN13
–
A2
OSLED(GN)
OSLED(RED)
OSD
ROMCS_
R395
R394
L173
_WR
_RD
A9
A10
D(7:0)
A(8:0)
RA83
RA77
L174
R386
R383
R384
R385
C235
C236
ROMCS_
MIPCS_
SHDCS_
B
C
G1
_G2A
_G2B
Y0
Y1
Y2
Y4
Y5
Y6
Y3
Y7
6
4
5
G
S G
S G
S G
S G
S G
S G
S G
S G
S G
S G
S
1
2
3
5
4
4
3
1
2
4
3
5
6
7
8
4
3
2
LA9
R7
1
5
6
7
8
4
3
2
LA8
1
5
6
7
8
4
3
2
LA7
L195
1
8
5
6
7
1
4
3
LA6
LA4
LA1
2
5
6
7
8
4
3
2
1
8
7
6
5
1
2
3
4
5
7
8
6
4
2
1
LA2
LA3
LA5
3
8
7
6
5
1
2
3
4
7
6
5
8
2
3
4
1
1
2
1B
E
2B
1C
2C
TR22
1
2
3
5
4
1B
E
2B
1C
2C
TR21
1
2
3
5
4
R6
1B
E
2B
1C
2C
TR15
1
2
3
5
4
1B
E
2B
1C
2C
TR9
1
2
3
5
4
1B
E
2B
1C
2C
TR10
1
2
3
5
4
1B
E
2B
1C
2C
TR13
1
2
3
5
4
1B
E
2B
1C
2C
TR12
CN5
–
5
CN5
–
11
CN13
–
B1
CN13
–
B3
CN13
–
B4
CN13
–
A1
CN13
–
A2
CN13
–
A5
CN14
–
1
OSBSW
CN14
–
2
OFSW
CN14
–
3
OSSW
CN14
–
4
RSV
CN14
–
5
RSV
CN14
–
6
DF SHORT
CN14
–
7
OSWSW
CN14
–
8
DFSSW2
CN14
–
9
DFSSW1
CN14
–
10
OSLSW
CN14
–
11
DFTSW
CN14
–
1
CN14
–
2
CN14
–
3
CN14
–
6
CN14
–
7
CN14
–
8
CN14
–
9
CN14
–
10
CN14
–
11
CN13
–
A6
CN13
–
A8
CN13
–
A11
CN13
–
A10
CN13
–
A9
CN13
–
A3
CN13
–
A4
CN13
–
B10
CN13
–
B11
CN5
–
13
CN5
–
1
RA85
RA84
CN5
–
2
CN5
–
4
CN5
–
10
CN5
–
14
CN5
–
15
CN13
–
B2
CN13
–
B6
CN13
–
B8
CN5
–
3
CN5
–
1
OSD
CN5
–
2
OSD
CN5
–
3
ODSW
CN5
–
4
SM Vref
CN5
–
5
SM M1
CN5
–
6
SM M2
CN5
–
7
SM M3
CN5
–
8
SM M4
CN5
–
9
SM M5
CN5
–
10
SM CLK
CN5
–
11
SM CWB
CN5
–
12
SM RET
CN5
–
13
SM ENABLE
CN5
–
14
EL ON REM
CN5
–
15
SHPSW
CN5
–
16
G(5 V)
CN13
–
B1
OFM RET
CN13
–
B2
OFM CLK
CN13
–
B3
OFM CWB
CN13
–
B4
OCM ENABLE
CN13
–
B5
OCM RET
CN13
–
B6
OCM CLK
CN13
–
B7
OCM CWB
CN13
–
B8
OCM Vref
CN13
–
B9
OCM M3
CN13
–
B10
OCM M2
CN13
–
B11
OCM M1
CN13
–
A1
OSLED(RED)
CN13
–
A2
OSLED(GN)
CN13
–
A3
SBPSOL2
CN13
–
A4
SBPSOL1
CN13
–
A5
DFCL
CN13
–
A6
EFSSOL
CN13
–
A7
CN13
–
A8
SBFSSOL
CN13
–
A9
OFSOL2
CN13
–
A10
OFSOL1
CN13
–
A11
OFM ENABLE
CN5
–
6
G
S G
S
TR14
B
C
E
G
S G
S
+
G
TR26
4
2E
2C
1C
6
3
2
5
1B
2B
1E
1
S G
TR27
2E
2C
2B
5
1B
1C
2
3
6
4
TR11
1B
1
E
2
1C 5
2B
3
2C 4
1E
1
S G
TR28
SC TIM
SCAN HEAD
CN13
–
B4
OCM ENABLE
CN13
–
A3
SBPSOL2
CN13
–
A4
SBPSOL1
CN14
–
7
C241
A9
A10
C51
C243
RSV1
RSV2
CN5
–
2
OSD
CN13
–
A6
OVSYNC
EFSSOL
C242
R393
OSWSW
2E
2C
2B
5
1B
1C
2
3
6
4
4
CN14
–
1
CN5
–
15
CN14
–
11
OFSOL1
CN13
–
A10
OFM RET
CN13
–
B1
OFM ENABLE
CN13
–
A11
OFM CWB
CN13
–
B3
OCM M2
CN13
–
B10
OCM M1
CN13
–
B11
SM ENABLE
CN5
–
13
SBFSSOL
CN13
–
A8
SM CWB
CN5
–
11
SM M2
CN5
–
6
SM M1
TP10
CN5
–
5
SM CLK
CN5
–
10
OCM CLK
CN13
–
B6
OFM CLK
CN13
–
B2
OFSOL2
CN13
–
A9
1
2
3
4
1
2
3
4
13
14
15
17
18
19
20
21
22
24
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
VDD
VSS
P14
/CS2
P12
/CS0
P10
D15
D14
D13
D12
D11
D10
D9
D8
P07
P06
P05
P04
P03
P02
P01
P00
/WEH
/WEL
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
P52
P51
P50
P43
P42
P41
P40
P37
P36
P35
P34
P33
P32
P31
P30
A
VSS
A
VDD
P23
P22
P21
P20
/WORD
/BUSGT
/BUSRQ
/RST
P53
P60
P61
P62
P63
P64
P65
P66
P67
P70
IC53
P71
P72
P73
P74
P75
P76
P77
SYSCLK
VDD
/XI
XO
VDD
/OSCI
OSCO
VSS
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
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
5
6
7
8
5
6
7
8
5
6
7
8
5
6
7
8
5
6
7
8
4
3
2
1
4
3
2
RA75
1
4
3
2
RA74
RA73
1
4
3
2
1
4
3
2
1
5
6
7
RA82
RA79
RA78
RA81
RA80
RA76
RA72
8
5
6
7
8
5
6
7
8
5
6
7
8
5
6
7
8
A18
A17
A16
A15
A14
A13
A12
A1
1
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
A23
A22
A21
A20
A19
A18
A17
A16
A15
A14
A13
A12
A1
1
A10
A09
A08
A07
A06
A05
A04
A03
A02
A01
A00
/RE
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
12
11
10
9
8
7
6
5
27
26
23
25
4
28
29
3
2
1
32
16
30
31
D0
D1
D2
D3
D4
D5
D6
D7
_CE
_OE
Vpp
Vcc
GND
D0
D1
D2
D3
D4
D5
D6
D7
8
7
6
5
8
7
6
5
4
3
2
1
5
1
4
2
RSV1
R8
RA88
RSV2
3
14
23
RA92
RA87
36
27
18
45
18
27
36
45
6
7
LA12
LA11
LA10
8
1
4
3
2
8
5
6
RA91
7
4
3
2
1
5
6
7
8
4
3
2
1
5
6
7
8
Summary of Contents for Ri 4230
Page 3: ...SERVICE MANUAL Ri 4230 5230 ...
Page 13: ...4230 5230 S M MCA THEORY AND CONSTRUCTION SECTION I I Theory and Construction Section ...
Page 14: ...1 1 5 2A3 4 CONTENTS 1 1 Specifications 1 1 1 Specifications 1 1 1 ...
Page 100: ...4230 5230 S M MCA ELECTRICAL SECTION II II Electrical Section ...
Page 119: ......
Page 138: ......
Page 159: ...4230 5230 S M MCA III Set Up and Adjustment Section III SET UP AND ADJUSTMENT SECTION ...
Page 448: ...2A3 4 3 6 3 25 Toner scatters at the leading edge of the image See page 3 6 17 ...