Sharp FO 4400 - B/W Laser - All-in-One Service Manual Page 119
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- Table of contents
- TROUBLESHOOTING
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FO-4400U
FO-CS1
( 8-4B)
( 1-2H)(11-4D)
( 1-3H)( 2-3A)(11-5D)
(7-2D)
(7-3B)
( 1-4C)
( 1-2B)( 2-3A)( 3-1A)( 4-4A)( 8-4H)(11-5H)
( 1-2H)( 2-3A)
( 1-3H)( 4-2D)(11-3D)
( 1-3H)( 4-2A)(11-3D)
( 1-6H)( 2-1A)( 3-1A)( 4-6A)( 5-4A)(11-6A)(12-2F)
( 1-6H)( 2-2A)( 3-2A)( 4-6A)( 5-4A)(11-6A)(12-4D)(12-2D)
( 8-4H)
( 8-4B)
( 8-4B)
( 8-4B)
( 8-5B)
( 8-5B)
( 8-5B)
( 8-4B)
( 1-3H)( 2-2A)( 4-2A)(11-3A)
( 1-3H)( 2-3A)( 3-1A)( 4-5D)(11-3A)(12-3R)(12-1A)(12-5A)(12-5I)
( 8-4C)
A13
A5
A12
A6
A7
D7
D13
D12
A4
D1
D5
A15
D4
A8
D2
A14
D8
A1
A2
A9
A10
A11
D3
D6
D14
A0
D0
D9
D15
D11
A3
D10
4
3
10
11
COREVDD
1
WAIT-
2
DB15
3
DB14
4
DB13
5
DB12
6
DB11
7
DB10
8
DB9
9
IOVDD
10
DB8
11
DB7
12
DB6
13
DB5
14
DB4
15
DB3
16
DB2
17
DB1
18
DB0
19
VSS
20
COREVDD
21
GPIO0
22
FPDAT11
23
FPDAT10
24
FPDAT9
25
FPDAT8
26
VSS
27
FPSHIFT
28
IOVDD
29
FPDAT7
30
FPDAT6
31
FPDAT5
32
FPDAT4
33
FPDAT3
34
FPDAT2
35
FPDAT1
36
FPDAT0
37
FPLINE
38
FPFRAME
39
VSS
40
COREVDD
41
DRDY
42
LCDPWR
43
TESTEN
44
CNF4
45
CNF3
46
CNF2
47
CNF1
48
CNF0
49
VSS
50
CLKI
51
IOVDD
52
AB15
53
AB14
54
AB13
55
AB12
56
AB11
57
AB10
58
AB9
59
VSS
60
COREVDD
61
AB8
62
AB7
63
AB6
64
AB5
65
AB4
66
AB3
67
AB2
68
AB1
69
AB0
70
BCLK
71
VSS
72
RESET-
73
CS-
74
BS-
75
RD-
76
WE0-
77
WE1-
78
RD/WR-
79
VSS
80
VCC
14
GND
7
2
1
8
9
12
13
6
5
C198
R238
R27
R5
R10
R239
C197
R187
C6
C192
C196
R7
N.M.
IC11B
R14
R9
R15
R24
R236
R23
TP206
R12
IC11E
IC10
R8
R11
C193
IC11G
R188
IC11A
TP205
C166
C195
IC11D
R25
TP203
R234
C169
C170
C194
C167
C175
IC11F
X2
R235
R189
TP204
IC11C
R237
C168
C174
R26
R6
+3.3V
+3.3V
+3.3V
DG
+3.3V
DG
DG
DG
DG
DG
DG DGDG
DG
DG
/CS6
/WE1
/BS
RD/WR
/RD
/WE0
/RESET
/WAIT
FPD0
FPD1
FPD2
FPD3
YD
LP
XCK
D[31:0]
CKLCDC
LCDCLK
A[25:0]
LCDCLK
M
DISP
LCDPWR
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
I
I
6 6
5 5
4 4
3 3
2 2
1 1
LCD controller block 7/12
6 – 10
- SERVICE MANUAL 1
- FACSIMILE 1
- CONTENTS 2
- [1] Specifications 4
- [2] Life of consumable 4
- [3] Operation panel 5
- [4] Transmittable documents 6
- [5] Installation 7
- Attach a letter or 9
- SPEED DIAL 14
- CHAPTER 2. ADJUSTMENTS 15
- MEMORY CLEAR ? 16
- S W 0 1 = 0 0 0 0 0 0 0 0 17
- Soft switch mode screen 17
- PANEL CHECK MODE 18
- ALL KEY OK !! 18
- : Speed dial number 19
- HHHHHHHHHHHHHHHHHHHH 20
- • Blank paper aging mode 21
- 4. Soft switch description 24
- • Soft switch 24
- [3] Troubleshooting 49
- [4] Error code table 50
- 2. Service call error massage 51
- Super G3 mode 51
- [1] Mechanical description 53
- [2] Printer description 54
- 8. LASER EXPOSURE 57
- 9. DEVELOPMENT 57
- 9-1. Overview 57
- Temperature (°C) 58
- 12. PRINT SEQUENCE 59
- 13. Timing chart 60
- 13-1. Print Starting 60
- 13-2. Print Ending 60
- 2 Rear cabinet 62
- PWB plate, Right cabinet 63
- 4 PWB unit 64
- Inner left cabinet unit 67
- 9 Power supply PWB 68
- Scanner frame unit (1/2) 69
- Scanner frame unit (2/2) 70
- Document guide upper unit 71
- Operation panel unit 71
- 13 Upper cover 72
- Wire treatment 73
- High voltage PWB unit (HV1) 74
- Main motor (M1) 75
- Fusing unit (1/2) 77
- Heater Lamp 78
- Voltage Mark 78
- Paper cassette (FO-CS1) 79
- Cassette case unit 80
- Drive system unit (FO-CS1) 81
- Cassette cabinet (FO-CS1) 82
- Cassette case (1/2) (FO-CS1) 83
- Cassette case (2/2) (FO-CS1) 84
- (FO-45VS) 85
- CHAPTER 4. DIAGRAMS 87
- [1] Circuit description 91
- FO-4400U 100
- (3) Modem block 101
- (2) Backup memory block 101
- 0 I1 Output Current 104
- E) = IOUT 104
- E) = IOUT x 2/3 104
- E) = IOUT x 1/3 104
- 2. Waveforms 105
- CPU block 110
- MAIN CPU 111
- HD6417706F133 111
- Main ASIC block 112
- IC5 SDRAM 113
- MT48LC4M16A2TG-75/ 113
- W986416DH-7 113
- Sub ASIC block 114
- R284 10K 115
- Memory block 4/12 116
- Modem block 5/12 117
- LCD controller block 7/12 119
- Connector block 1 9/12 121
- Connector block 2 10/12 122
- Connector block 3 11/12 123
- Connector block 4 12/12 124
- [2] LIU PWB circuit 1/1 127
- M38079EFFS_12MHZ 130
- Printer PWB circuit 2/2 131
- HEATER ON 134
- HEATER-RELAY OFF 134
- INTERLOCK 134
- Power Supply PWB parts layout 135
- Joint PWB 138
- No. DESCRIPTION PARTS CODE 139
- C LED PWB unit DCEKP425CXHI1 139
- [1] G3 Protocol 144
- [2] Super G3 Protocol 145
- [3] Power On Sequence 146
- CHAPTER 8. OTHERS 147
- Fig. 5 Connected cable 149
- FO-4400 PC 150
- PARTS GUIDE 151
- [5] Document guide upper unit 156
- [4] Operation panel unit 156
- [10] Drive/Transfer unit 162
- PARTS CODE 163
- DESCRIPTION 163
- I n d e x 183
- © 2002 BY SHARP CORPORATION 190
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