Sharp FO-6700 Service Manual Page 89
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
Rated. / 5. Based on customer reviews
FO-6700U
FO-67DL
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
TP153
TP152
IC37B
74LV08A
4
5
6
TP148
C270
0.1
C248
0.1
TP159
IC37D
74LV08A
12
14
13
7
11
R271
330
C250
2200P
C225
27P
C222
100P(CH)
C249 1
IC20
HD74LS244
OCTAL BUFFERS
1Y1
18
1Y2
16
1Y3
14
1Y4
12
2Y1
9
2Y2
7
2Y3
5
2Y4
3
1G
1
1A1
2
1A2
4
1A3
6
1A4
8
2A1
11
2A2
13
2A3
15
2A4
17
VCC
20
GND
10
2G
19
C198
0.1
C197
0.1
IC14
HD74LS374
OCTAL D-TYPE FLIP-FLOPS
D7
18
D6
17
D5
14
D4
13
D3
8
D2
7
D1
4
D0
3
CK
11
Q7
19
Q6
16
Q5
15
Q4
12
Q3
9
Q2
6
Q1
5
Q0
2
VCC
20
GND
10
OE
1
C223
1000P(CH)
C254 1
R241
10K
L103
0
C224
33P
R270 33
R286 4.7K
X5
16MHz
12
R290
4.7K
R291
4.7K
R289
4.7K
IC26
HD813201F
IDP201(CODEC)
A2
55
A1
54
A0
57
D7
69
D6
68
D5
66
D4
67
D3
63
D2
65
D1
62
D0
64
CS
44
R/W
42
DS
45
IRQT
58
DRQTO
47
DACKI
46
68/80
56
CLKO
21
CLKI
19
CLKX
20
CLKMOD
40
MDEN
25
MAS
74
MAEN
76
BACK
48
BRQT
52
MA/MD0
79
MA/MD1
77
MA/MD2
3
MA/MD3
78
MA/MD4
5
MA/MD5
2
MA/MD6
6
MA/MD7
4
MA/MD8
8
MA/MD9
7
MA/MD10
12
MA/MD11
9
MA/MD12
14
MA/MD13
13
MA/MD14
15
MA/MD15
16
MA16
71
MA17
11
MA18
30
MA19
31
MA20
50
MA21
51
CKTST2
80
CKTST1
1
CKTST0
41
UDS
27
LDS
23
MR
26
MW
28
IOR
35
IOW
36
DRQTI
39
DACKO
38
DMA
32
DTC
37
READY
73
RTCH
60
RTCL
61
RESET
59
VDD1
29
VDD2
49
VDD3
72
VSS1
10
VSS2
17
VSS3
34
VSS4
53
VSS5
70
VSS6
75
TEST0
18
TEST1
22
TEST2
24
TEST3
33
TEST4
43
R269 0
C221
N.M.
IC34C
74VHC04
5
6
IC34B
74VHC04
3
4
C269
0.1
IC34E
74VHC04
11
10
TP140
TP141
IC35B
74HC74
D
VCC
12
14
14
14
14
14
7
7
7
7
7
CLK
GND
11
Q
9
Q
8
PR
10
CL
13
IC35A
74HC74
D
GND
VCC
2
14
14
CLK
3
7
7
Q
5
Q
6
PR
4
CL
1
TP142
TP143
TP144
TP145
IC37A
74LV08A
1
14
14
2
7
7
3
IC37C
74LV08A
9
10
8
TP146
TP147
IC34D
74VHC04
98
C253
N.M.
R303
4.7K
TP149
TP158
TP154
TP156
C251 1
TP157
TP155
TP151
TP150
MD15
MD9
MD11
MD11
MD15
MD13
MD14
MD13
MD12
MD8
MD8
MD9
MD14
MD10
MD12
MD10
PMAD8
PMAD7
PMAD3
PMAD0
MA2
PMAD6
PMAD12
PMAD1
PMAD5
PMAD14
MA3
PMAD9
PMAD11
PMAD13
PMAD2
PMAD10
PMAD15
PMAD4
MA1
CD2
CD0
CD2
CD5
CD6
CD7
CD6
CD0
CD7
CD5
CD5
CD4
CD1
CD1
CD1
CD3
CD4
CD3
CD6
CD4
CD3
CD2
CD0
CD7
PMA17
PMA16
PMA19
PMA18
PMA20
DG DG
DG
+5V
+5V
DG
+5V
+5V
+5V
DG
+5V
DG
+5V
DG
DG
DG
DG
+5V
+5V
+5V
+5V
DG
+5V
DG
+5V
DG
DG
DG
DG
+5V
DG
+5V
+5V
DG
DG
MD[15:0]
(1-6H,2-6E,3-6A,4-6D,5-4C,7-5A,,13-3C,14-4A)
PMAD[15:0] (7-1A,9-5D)
/DACKT
(7-5D)
/CDCCS1
(6-5G)
/MWRH(1-2E)
/RDCDC
(7-1E)
CDCINT(7-1E)
/RDCDC
(7-1E)
RDCDC
(7-1E)
/CLKF
(7-1E)
READY
(7-1E)
/UDS
(9-4E)
/LDS
(9-5E)
MAS
(1B,7-1E)
/MDEN (7-1E)
/MAEN1 (1B,9-4E)
BRQT
(2B,7-1D)
CK16M(5-2C,7-1E,9-2C)
DRQT
DRQT
DRQ0 (7-1E)
/CDCCS2 (7-5D)
/CDCCS1(6-5G)
/DACKT
(7-5D)
/MAEN2
(7-1E)
/BACK1
(7-1E)
MAS
(7-1E)
/BACK2
BRQT(5G)
/MAEN1(4G)
/CDCMW
(9-4A)
MA[21:1]
(1-6H)
PMA[20:16]
(7-1A)
/BACK2
CDCMSK(5-3F)
/RSTCDC(7-1E)
(2E)
(5G)
(3F)
(5D)
Codec block 8/16
6 – 8
- SERVICE MANUAL 1
- FACSIMILE 1
- CONTENTS 3
- [1] Specifications 4
- 28 29 30 31 32 33 5
- 40393837363534 5
- CHAPTER 2. ADJUSTMENTS 9
- MEMORY CLEAR ? 10
- 1) Soft switch mode 11
- 2) Print area 11
- 3) ROM & RAM check 11
- After setup of the document 12
- Only the sensor which is 12
- SPEED key SXXX XXX 13
- : Speed key number 13
- 2-2. Print diagnosis 15
- • Blank paper aging mode 15
- • SW1 to SW30 : For line 1 17
- • SW31 to SW60 : For line 2 17
- 4. Soft switch description 18
- • Soft switch 18
- [3] Troubleshooting 44
- [4] Error code table 45
- Super G3 mode 46
- 2. Service call error massage 46
- Wire treatment 52
- [1] Block diagram 53
- [2] Wiring diagram 54
- [1] Circuit description 57
- (8) Gate Array (B) Block 64
- (9) CODEC Block 66
- (10) Page Memory Block 69
- (11) Driver Block 70
- (12) DPRAM I/F Block 71
- 1. General description 72
- (1) Sub CPU Block 72
- (2) Modem Block 75
- (8) JBIG Block 80
- IC3: VHiM65761FP-1(M65761FP) 80
- CPU & memory block 82
- Flash memory block 3/16 84
- Reading block 4/16 85
- Gate array (B) block 7/16 88
- Codec block 8/16 89
- Page memory block 9/16 90
- Other block 14/16 95
- Connector block 1 15/16 96
- FO-6700U 100
- Modem block 2/7 101
- Gate array block 3/7 102
- QM-coder block 4/7 103
- Dual port RAM block 5/7 104
- Access control block 6/7 105
- Connector block 7/7 106
- LIU PWB parts layout 109
- Printer PWB circuit 2/2 111
- T1 7 8 – 9 114
- T1 2 – 3 114
- Power Supply PWB parts layout 115
- High Voltage PWB parts layout 119
- Toner Empty PWB parts layout 120
- Memory PWB circuit 2/3 126
- Memory PWB circuit 3/3 127
- [1] G3 Protocol 129
- [2] Super G3 Protocol 130
- [3] Power On Sequence 131
- CHAPTER 8. OTHERS 132
- 2. Description 133
- For inspection 135
- [2] IC Signal Names 137
- 8 7 5 8 B 138
- PRINTER PWB UNIT 139
- 16 15 14 13 12 11 10 9 142
- 1 2 3 4 5 6 7 8 142
- 1C 2C 3C 4C 5C 6C 7C COM 142
- 1B 2B 3B 4B 5B 6B 7B E 142
- PARTS GUIDE 143
- [12] 2nd.Cassette (1) 158
- I n d e x 184
- © 2000 BY SHARP CORPORATION 192
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