Sharp AR-FX7 Service Manual page 98

FAX MAIN PWB (TEL/LIU IF)
D
R126 10K
BZ
C147
B4700/25
GN D
C281
SPOUT TP1243
SPOUT
F0.1u/16
C127
B2200/50
GN D
VOLCNT [A]
Q4
DTC363EKA T146
B C
VOLCNT [B]
GN D
C
VO L[A]
VO L[B]
Q7
DTC363EKA T146
B
VO L[C]
+5V +12V
VSEL
R517 R518
0 R(NM)
S
B
EXTRS
S_EN
IC 92D
9
R522 0
TC74VHC04FT
IC 92E
11
R524 0
A
TC74VHC04FT
IC 92F
13
R525 0
TC74VHC04FT
GN D
4
C146
F0.1u/16
TP521 TP514 R127 3.3K TP520
R129
1K
VR EF
GN D
R130 R(NM)
R133 10K TP517
VSEL R135 56K
R140 R141
Q3 10K 10K
DTC363EKA T146
TP10
B C
TP519
VSEL
R145
Q5 10K
DTC363EKA T146
B C
Q6
DTC363EKA T146
B C
C
GN D
+5V
VR EF
R519
1K
C404
A47u/16
ZD 1
UDZ2.0B
+5VS
GN D
1
2
R406
10K TC74VHCT00FT
GN D
9
10
+5VS
R401
10K R563 TC74VHCT00FT
10K
Q20
DTC363EKA T146
GN D
B C
R1017 33
R403
10K
GN D
GN D
14
8
7
14
10
7
FAXWU-
14
12
7
4
AR-FX7 ELECTRICAL SECTION 11 - 21
VR EF
R125 56K
R128 56K
C148
F0.1u/16
IC 33
TP12
12 13
X0 X
14
X1
TP11
15 3
X2 Y
TP518
11
X3
VSEL
1
Y0
5
Y1
2 16
Y2 VDD
4
Y3
C149
6
INH
F0.1u/16
10 7
A VEE
9 8
B VSS
BU4052B CF
GN D GN D
R146 R147
10K 10K
TP21
TP20
TP19
C153 C154 C155
C(NM) C(NM) C(NM)
GN D
C319
F0.1u/16
GN D
IC 90A
3
R1018 33
12
13
IC 90C IC90D
TC74VHCT00FT
RHS
8
R1019 33
Q19
DTC114EKA T146 IC 90B
4
C B 6
5
TC74VHCT00FT
HS 1
GN D
Q16
DTC114EKA T146
C B
+5VS
GN D
R385 Q17
R(NM) DTC114EKA T146
C B
R386
0
GN D
Q18
DTC114EKA T146
C B
GN D
3
VR EF
R516
1M
TP523
13
R132 5.1K TP16 14
R134 10K TP13
15
R136 18K TP17
12
R137 33K TP512
1
R138 62K TP509
5
R139 200K TP511
2
R142 360K TP510 4
6
11
10
9
GN D
CN8
RHS
DG
B2B-PH-K-S(NM)
IC 89C
14
6 5
CI
7
TC74LCX04FT
11
IC 89B
14
4 3
7
TC74LCX04FT
IC 89A
14
2 1
7
TC74LCX04FT
EXHS-
+5VS
C323
IC 92A F0.1u/16 GN D
14
2 1
7
TC74VHC04FT
GN D
IC 92B
14
4 3
7
TC74VHC04FT
14 IC92C
6 5
7
TC74VHC04FT
C411 C412 C413
B1000/50 B1000/50 B1000/50
GN D GN D GN D
3
IC 34
3
X0 X
X1
X2
X3
X4
X5
16
X6 VDD
X7
INH
7
A VEE
8
B VSS
C
BU4051B CF
+5VS
K
A
D19 DA20
GN D
1
2
GN D
MDM_A
RG
AFE
MDM_AB
SP
SI3O
HNDM UTE-
MDM
C
MDM_
MDM_AS
C
C
E
15
IC20D
14
TP153
8 9
7
TC74LCX04FT
CI D2-