Sharp MD-R3H Service Manual page 49

R1211
C1208
220
0.047
TP1275
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
P1274 1 EFMMON
2 AVCC
C1202
3 EFMI
100 99 98
1
13 14
4 AGND
AIN
5
6 EIN
TCG
7
8 BIN
9 FIN
10 VBAT
11 WBI
1211
VDD1 IC1201
12
1
LR376481
13 DGND
TEST0 ENDEC
14
15 TEST1
TEST2
16
R1653
17 X176KO
100K
18 FODRF
R1651 100K
19 FODRR
R1657 120K
20 TRDRF
R1655 120K
21 TRDRR
R1661 82K
22 SLDRF
R1659 82K
23 SLDRR
R1665 62K
26 27 28
24 SPDRF
SPDRR
25
R1663
62K
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
11
0
TP1215
10 9 8 7 6 5
C1206
1
IC1202
IX2474AF
4M BIT-D-RAM
11 12 13 14 15 16
A4
A5
A6
A7
A8
VREF3.2V
R1423
10K
R1418
47K
91 90 89 88 87 86 85 84 83 82 81
XRST
XRST 80
DIGCD
79
DIGEX
78
82 81
DFS1
77
DFS0
76
DAPON
75
ADPON
74
A/B
73
R1477
LDON
72
10K
LDON
PCNT1
71
TP1416
PCNT0
70
69
C1401
68
232AW
L3CLK
67
MICROCOMPUTER
L3MODE
66
R1475
C1406
L3DATA
65
1 1K
GND 64
µCON 3.2V
63
R1476
VCC 62
1K
EEPK
EEPK
61
EEPD
EEPD 60
EPCS
EPCS
59
R1474 PRO
EEPRO
58
1K
57
56
55
SYD0
SYSD0
54
SYD1
49 50 SYSD1 53
SYD2
SYSD2
52
SYD3 RNC1407
SYSD3 51
3
40 41 42 43 44 45 46 47 48 49 50
RNC1407
IC1402
S29294A
5 4
DI SK
6
DATA CS 3
R1416
R1473
10K
7 VCC 2
GND
100K
C1405
8 1
PRTCT
0.1
2
E -PROM
The numbers 1 to 23
7
6
7
TP1210
9
TP1216
FEMON
75
DADATA
74
RC120
78 77 76
ADDATA
73
220
DFCK 72
BCLK
71
C1207
LRCK 70
1
23 22
DGND 69
18
R1254
VDD3 68
220
DOUT 67
19
DIN 66
R1202
XO
65
21
1M
C1203
XI
64
1
R1201
DGND
63 150
20
XL1201
VDD1
62
C0001AW
C1205
C1204
VPD 61
17
12P
12P(CH)
VXI (CH)
60
CDBCLK
59
CDLRCK
58
CDDATA
57
R1269
TEST4
56
00
TP1273
TEST3
55
TP1279
TESO1
54
R1263
48 49 50
EXPORT1
53 R1261
10K
10K
EXPORT0
52
R1266
X700KO
51 10K
8
C1954
15P
R1963
(CH)
1.5K
TP1214
R1221
220
R1962
220K
C1952
0.01
4 3 2 1
Vcc
1
2
3
4
17 18 19 20
5
6
7 GND
IC1990
74AC04FS
L1203
4.7µH INVERTER
BACKUP
Q1820 Q1807
2SA1162G
2SA1314C
VREF3.2V
TP1802
R1821
C1807 1
220/4
R1827 R1809
Q1821
270
390
2
4
1
Q1822
2
5
1
IC1801
XC62EP32
3
REGULATOR
Q1801
2SA1314C
TP1801
R1804
220K
R1805
100K
PCNT0
3 2
Q1803
RN1406 1
are waveform numbers shown in page 60, 61.
8
Figure 49 SCHEMATIC DIAGRAM (10/10)
ANALOG PLAY BACK SIGNAL
DIGITAL RECORD SIGNAL
DIGITAL PLAYBACK SIGNAL
DADATA
ADDATA
DFCK
BCLK
LRCK
AND GATE
TP1911
IC1906
TC7ST08F
C1951
1 Vcc 5
0.047
2
3 GND 4
R1967 R1969
47 56
C1958
C1927
0.047 0.047
CLOCK GENERATOR
C1957
1 REF VDD 16
100/6.3
LOCK
2 PD 15
3 VDDA S2 14
S1
4 AMPI 13
5 AMPO M2
12
M1
6 VSSA 11
7 XI CKO
10
R1968
8 NC VSS 9
220
IC1907
TC9246F
C1992
0.1
14
13
12
D1990
11
1SS372
10
C1991
9
10
C1990
8
1
BACKUP
R1820
1
R1808
27K
3
2
1
C1801
2.2
P.GND
R1802
270
2 3
Q1802
RN1406
1
9 10
– 49 –
MD MAIN PWB-E
AND GATE
IC1916
74VHC08F
R1927
CN1904
22
DOUTO TP1901
8 GND 7 1 DIGOUT
TP1902
9 6
2 GND
5 3 GND
10
TP1904
4
11 4 DIGIN
R1974
3
12 220
13 2
R1973
Vcc 1
14
6.8K
R1939
LOADIN
Q1451
RESET
RNC1407
2
3
1
STID
DSCK
SERCH
KDATA
MDDATA
DSTB
R1463
10K
L1950
1µH
LR190
22
DFCK
AD
LRCK
TP1520
BCLK
DADATA
R1994
47
R1759
1K
R1708 R1733
6.8K 1K
R1758
1K
11
MD-R3H
TO MAIN PWB
CNP301
P46 3 - H
R1947
47
P46 4 - H
TO MAIN PWB
CNP401
PDOWN
1K
R1456
CN1902
1K
1 PDOWN
TP1502
2 BACKUP
TP1503
R1452
3 LOAD SW
3.3K
TP1504
4
RESET
R1454 1K
TP1505
5 MD-ST
R1458 6.8K
TP1506
6 DSCK
TP1507 R1460 6.8K
7 SERCH
R1462 6.8K
TP1508
8 KDATA
R1464 220
TP1509
9 MDDATA
R1466 220
TP1510
10 DSTB
TP1511
D.GND
11
C1425
TP1512
D.GND
0.047 12
D.GND
13
D.GND
D.GND
14
TP1515
15 DVDD
C1917
JC196 DVDD
16
68P
TP1516
22P
17 SYSCLK
TP1517
TP1518
ADDATA
18
TP1519
19 LRCLK
BLCK
20
TP1521
21 DADATA
TP1522
DFS1
22
TP1523
23 DFS0
TP1524
MUTE
24
C1724 JC171
22P 22P
AA.GND
12