Sharp AR-FX7 Service Manual page 96

5
FAX MAIN PWB (GA2-CODEC)
C D2ACKD0-
C D2ACKD0-
C D2ACKD1-
C D2ACKD1-
D
C D2ACKC0-
C D2ACKC0-
C D2ACKC1-
C D2ACKC1-
SDRAM_A[0:12]
SDRAM_A0
C
SDRAM_A1
SDRAM_A2
SDRAM_A3
SDRAM_A4
SDRAM_A5
SDRAM_A6
SDRAM_A7
SDRAM_A8
SDRAM_A9
SDRAM_A10
SDRAM_A11
SDRAM_A12
SDRAM_BA0
SDRAM_BA1
SDRAM_CS-
SDRAM_WR-
SDRAM_CAS-
SDRAM_RAS-
SDRAM_DQM0
SDRAM_DQM1
SDRAM_CLK
SDRAM_CKE
TP1095
R218 BR103
4.7K MNR04 4.7K
B
C 307
+3.3V
F 0.1u/16
12 9
D Q
11
CLK
8
Q
IC 86B
TC74LCX74FT
G ND
A
5
9
R611 33
8
10
IC 82C
TC74LCX08FT
+3.3V C306
F 0.1u/16
G N D
12
R612 33
11
13
IC 82D
TC74LCX08FT
G N D
BR143
IC 42
MNR04 33
23 2 1 8
A0 I/O0
24 4 2 7
A1 I/O1
BR144
25 5 3 6
A2 I/O2
MNR04 33
26 7 4 5
A3 I/O3
29 8 1
A4 I/O4
30 10 2
A5 I/O5
BR145
31 11 3
A6 I/O6
32 13 MNR04 33 4
A7 I/O7
33 42 1 8
A8 I/O8
34 44 2 7
A9 I/O9
BR146
22 45 3 6
A10 I/O10
MNR04 33
35 47 4 5
A11 I/O11
36 48 1
A12 I/O12
50 2
I/O13
20 51 3
BA0 I/O14
21 53 4
BA1 I/O15
19 1
CS VCC
16 3
WE VCC
17 9
CAS VCC
18 14
RAS VCC
15 27
DQML VCC
39 43
DQMU VCC
38 49
CLK VCC
37
CKE
6
GND
40 12
NC GND
C220 C221 C 222
28
GND
F 0 .1u/16 F 0 .1u/16 F 0 .1u/16
41
GND
46
GND
52
GND
54
GND
G N D
W 981216BH-75
G N D
TP1245
TP1246
AR-FX7 ELECTRICAL SECTION 11 - 19
4
C D2ACKD-
C D 2ACKD-
C D2ACKC-
C D 2ACKC-
BR99 BR100 BR101
+3.3V MNR04 (NM) MNR04 (NM) MNR04 (NM)
SDRAM_D0
SDRAM_D1
SDRAM_D2
SDRAM_D3
SDRAM_D4
8
SDRAM_D5
7
SDRAM_D6
6
SDRAM_D7
5
SDRAM_D8
SDRAM_D9
SDRAM_D10
SDRAM_D11
SDRAM_D12
8
SDRAM_D13
7
SDRAM_D14
6
SDRAM_D15
5
+3.3V
C 219
A33u/10
C 223 C 224 C225
F 0 .1u/16 F 0 .1u/16 F 0 .1u/16 C 226
F 0 .1u/16
G N D
4
C D2ACKD-
C D2ACKD-
SD RAM_D[0:15]
BR102
MNR04 (NM)
C D2ACKC-
C D2ACKC-
GDMAE
CD2RES-
C305
+3.3V
F 0.1u/16
12
CLK16M
13
IC 79D
TC74LCX32FT
G N D G ND
3
C D 2REQD
IC 80A
1
3
2
TC74LCX08FT
C D 2REQC
+3.3V
C 263
F 0.1u/16
G N D
12
11
13
IC 80D
TC74LCX08FT
G N D
R 565 R(NM)
G N D
R 564 33
11
3