Sharp FO 4400 - B/W Laser - All-in-One Service Manual Page 127
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- Table of contents
- TROUBLESHOOTING
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FO-4400U
FO-CS1
ExRing
ExTiP
+24VA
DPON
/EXHS
Ci
+5V
TiP
RXin
Ring
R9
18k
R20
22k
L4
R-5C
VA3
N.M.
CML1A
OUAZ-SH-124DZ
C12
0.033u
C17
N.M.
L2
N.M.
R5
13k(1W)
IC1B
NJM2904D
+
-
ZD2
HZ2C1
C8
0.033u
R21
3.3k
JP1
N.M.
R11
30k
AR3
RA-501P-C6
ZD4
1ZC15
C14
R2
L1
R-5C
C1
0.82u/250V(F)
R13
30
AR1
RA-391P-V6-2
C18
100u/50V
C19
0.022u
JP3
JP(10mm)
REC1
S1ZB60
~+
~ –
T1
TRTEP17-0411F
Q3
CML1B
OUAZ-SH-124DZ
Q4
KRC106M
B
E
C
R16
620
R24
10k
PC2B
JP5
D1
1SS133
R15
390
R23
10
ZD3
HZ27-A
R27
10
Q1
2SD592A
R17
22k
R6
22k 1/2W
R8
C3
C13
N.M.
PC3B
PC814X
R22
22k
C5
4.7u/50V
ZD7
HZ2C1
C2
0.01u
ZD5
MTZJ8.2B
JP4
N.M.
L5
EL0909RR-102K-2
Q2
2SD1200FR
PC1A
PC817X
ZD6
HZ2C1
R10
10
C9
1000p
R18
22k
R26
10k
C10
4.7u/50V
R4
4.7(1/2W)
IC1A
NJM2904D
+
-
C7
1000p
R1
N.M.
PC1B
PC817X
JP2
JP(10mm)
C15
470p
R25
PC3A
PC814X
C4
N.M.
L3
N.M.
R19
750
C11
4.7u/50V
PC2A
N.M.
R14
200
C6
4.7u/50V
Q5
N.M.
B
E
C
R12
91
D2
1SS133 C16
4.7u/50V
R3
R7
AR2
RA-501P-C6
ZD1
HZ2C1
ARG
Vref
+24VA
DG
+5v
+5VA
+24VA
DG
DG DG
DG
DG
+5VA
DG DG
Vref
DGDG
DGDG
DG DG
+5V
DG
DG
CNLIU-2
CNLIU-1
MJ2-3
MJ2-4
CNLIU-4
CNLIU-5
CNLIU-6
CNLIU-7
CNLIU-8
CNLIU-9
MJ1-3
MJ1-4
CNLIU-3
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
6 6
5 5
4 4
3 3
2 2
1 1
[2] LIU PWB circuit 1/1
6 – 18
- 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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