Sharp FO 4400 - B/W Laser - All-in-One Service Manual page 115

E
/PGMWP
131
( 4-4A)
VPPON
130
( 4-5A)
CISLEDON
129
( 6-2G)
TP105
128
(PWSAVE) R326
10K
DG
R325 10K
106
+3.3V
189
188
187
192
193
137
133
134
135
136
BZCONT
194
( 5-4H)
/SPMUTE
195
( 5-5H)
TP107 VOLC
196
( 5-5H)
TP108 VOLB
197
( 5-5H)
TP109 VOLA
198
( 5-5H)
BZOUT
199
( 5-4H)
TP110
200
TP111 ERLY1
201
(12-3E)
TP112 DPMUTE1
202
(12-3I)
TP113 CML1
203
(12-3E)
TP114 TXMUTE1
204
(12-3I)
TP115 DPON1
205
(12-3I)
TP116 MONSEL
206
( 5-4H)
/CI1
3
(12-3E)
C315
DG
N.M.
TP117 GAINC0
5
( 5-2H)
ERLY0
TP119
4
( 9-3D)
TP120 DPMUTE0
6
( 9-3D)
TP122 CML0
7
( 9-4D)
TP124 TXMUTE0
8
( 5-3H)
TP126 DPON0
9
( 9-4D)
/EXHS0
10
( 9-4D)
/CI0
11
( 9-4D)
C313
C312
DG
N.M.
/PDATAF
12
( 2-3F)
TP134 /CTBSYO
13
( 9-4F)
TP136 /CPRDYO
14
( 9-3F)
/ETBSYI
15
( 9-2I)
/PRRDYI
18
( 9-2I)
/EPRDYI
19
( 9-2I)
/PDATAO
20
( 9-3F)
/PCURESO
21
( 9-3F)
R446 0 /SRCLKO
22
( 9-3F)
/STSI
23
( 9-2I)
R487 0 /CMDO
24
( 9-3F)
C65
C66
/CTBSYP
N.M.
25
(10-5I)
/CPRDYP
26
(10-5E)
/ETBSYP
27 R447
(10-5E)
/PRRDYP
28 R444
(10-4E)
/EPRDYP
29 R404
(10-5I)
/PDATAP
30
(10-5I)
PCLRES
31
(10-3E)
/SRCLKP
36
(10-5I)
/STSP
37 R441
(10-5E)
/CMDP
38
(10-5E)
PACK
39 R442
(10-4E)
PREQ
40
(10-4I)
32 R403
NICR/WP
33
(10-4I)
C309 C68
DG DG
N.M.
N.M.
TP162
41
TP164
42 BR33
TP166
43
TP167
44
TP170
45
TP172
46 BR32
TP174
47
TP175
48
TP178
49
TP180
50 BR31
TP182
55
TP183
56
TP186
57
TP188
58
BR30
TP190
59
TP191
60
N.M.
+3.3V
IC14C
C204
5 6
0.1u
74LV14A
DG DG DG
E
F
/MDMRST1
(12-3I)
/MDMRST0
( 5-3A)
STPON
( 6-2D)
DG
C267
DG
DG
+3.3V
+3.3V
R328
10K
1
C272
0.1u
+3.3V
+3.3V
R327
10K
7
IC23B
BA10393F
DG
N.M.
C67
DG
PCLD[15:0]
(10-6E)
PCLD0
PCLD1
PCLD2
PCLD3
PCLD4
PCLD5
PCLD6
PCLD7
PCLD8
PCLD9
PCLD10
( 2-5A)(10-4E)
PCLD11
PCLD12
PCLD13
PCLD14
PCLD15
+3.3V +3.3V
IC14D
9 8 11
74LV14A
DG DG DG DG
F
VBAT +3.3V
R413
R414
10K
N.M.
VBAT
R416 R415
4.7K
N.M.
DG
RTCDT
RTCCK
RTCCE
+3.3V
R406
10K
R405 270
C266
2200p
+3.3V
R408
10K
R407
N.M.
N.M.
+3.3V
+3.3V
R331 C294
5.6K 0.1u
R329
2
-
10K
DG R412
3
+
270
IC23A C271
BA10393F 2200p R56
10K
DG
DG
+3.3V
R330
6
-
10K
R411
5
+
270
C270
2200p R57
R417 C273 10K
DG 0.1u
1.8K
DG
DG
+3.3V
IC39A
C600
1
7
/NICCSP
2
N.M.
DG
+3.3V
IC14E IC14F
10 13 12
74LV14A 74LV14A
DG DG
6 – 6
G
C293 18p
IC22
7 3 X4
DATA XT
32.768KHz
6 2
CLK XTN
C292 12p
5 8
VBAT
CE VCC
1 4
C291
INTN VSS
0.1u
SM8578BV
DG
/ROLSNS
( 9-3B)
/B4FRS
( 9-4B)
/FRSNS
( 9-4B)
/ORGSNS
( 9-4B)
R611
N.M.
+3.3V
IC39B
5
R610
3
6
N.M.(HD74LV2G00A)
DG
G
FO-4400U
FO-CS1
H
3/12
1
2
3
4
/NICWAITP (10-4E)
N.M.
5
6
H