Sharp AR-FX7 Service Manual page 93

Digital multifunctional system option
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4
D17
1SS355(NM)
TP1241
IC76
LM1117MPX-1.8(NM)
3
2
IN
OUT1
4
OUT2
C255
C256
1u/16
F0.1u/16
GN D
X8
R511
OSC515500J IS-24.576MH z-3.3TR
R(NM)
3
1
OUT
OE
TP1249
2
4
GND
VDD
GN D
C304 F0.1u/16
MDMCLK
JP 15
2
SD00415- 52(NM)
2
JP 16
SD00415- 52(NM)
MDM3.3V
R315
R316
R317
R318
R319
7K
47K
47K
47K
47K
MDM_ASPCLK
MDM_ATXD
MDM_ARXD
R321
R322
47K
R(NM)
GN D
GN D
MDM3.3V
R314
47K
IC 89E
14
10
11
MDM_ABITCLK
7
4FT
TC74LCX04FT
4
3
+5V
TP1242
R375
R(NM)
MDM1.8V
R376
R(NM)
C257
A33u/10 (NM)
R377
0
R378
0
R512
0
MDM3.3V
FB 21
MEM2012(NM)
IC 87
GN D
1
SPKRR
SPKRL
2
MBIAS
LINEO
3
HDST
4
SDI
5
SDO
6
FSYNC
LINEI
MDMCLK
7
MCLK
8
SCLK
RESET
Si3000-KS(NM)
C313
F0.1u/16
GN D
MDM3.3V
R323
R324
R325
R326
R327
47K
47K
47K
47K
47K
R329
R328
47K
R(NM)
GN D
GN D
3
AR-FX7 ELECTRICAL SECTION 11 - 16
2
R619
R(NM)
R618
0
SI3OUT
MDM3.3V
C317
C316
F0.1u/16
A10u/16 (NM)
C311
F1u/10( 1608)
GN D
16
R372
15K
15
14
GND
C308
13
VA
A10u/16 (NM)
12
VD
11
C312
10
MIC
9
F10u/10( 3216)(NM)
Vhnd
R373
22K
C314
F0.1u/16
GN D
HNDM UTE-
AFERES-
GN D
GN D
2
1
R374
2.2K
C315
F0.1u/16
C416
B0.027u/10
R370
20K
Vhnd
IC 88
4
2
5
3
NJM2135M(NM)
C310
F1u/10( 1608)
R371
C309
GN D
R(NM)
A10u/16 (NM)
GN D
GN D
+3.3V
+3.3V
C414
C415
TP147
F0.1u/16
F0.1u/16
IC24F
14
13
12
GN D
GN D
7
TC74LCX04FT
GN D
R622
R620
0
0
MDM3.3V
R621
R(NM)
FB 24
+5V
MEM2012(NM)
GN D
1
7/10
D
CN7
1
TX+
2
RX+
3
RX-
4
TX-
B4B-PH-K-S(NM)
GN D
C
B
TP148
Vhnd
A

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