Sharp MD-X60 Service Manual page 57

R1211
220
1
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
1.48V
TP1274 1 EFMMON
0V
AVCC
2
C1202
1.6V
3 EFMI
100 99 98
1
0V
4
AGND
1.36V
5 AIN
1.77V
6 EIN
1.6V
7 TCG
1.36V
8
BIN
1.77V
9 FIN
1.25V
10 VBAT
1.6V
WBI
11
C1211
3.17V
12 VDD1 IC1201
1
0V
13 DGND
LR376481
0V
TEST0
14
0V ENDEC
15 TEST1
0V
16 TEST2
R1653
1.45V
17 X176KO
100K
FODRF
1.56V
18 FODRF
FODRR R1651 100K
1.62V
19 FODRR
TRDRF R1657 120K
1.7V
20 TRDRF
TRDRR R1655 120K
1.5V
21 TRDRR
SLDRF R1661 82K
1.63V
22 SLDRF
SLDRR R1659 82K
1.53V
23
SLDRR
SPDRF R1665 62K
1.8V 26 27 28
SPDRF
24
SPDRR
1.4V
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
10
TP1215
9
C1206 10
1
IX2474AF
4M BIT D-RAM
11 12
A4
A5
A6
A7
A8
VREF3.2V
R1423
TP1405
10K
R1424
10K
R1418
47K
7 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
3.15V
XRST
XRST
80
0V DIGCD 79
DIGEX
0V 78
82 81
DFS1
0V 77
DFS0
3.2V 76
DAPON
3.2V 75
ADPON
0V 74
97A:0V
A/B
73
97B:3.1V
LDON
3.1V 72
LDON
PCNT1
0V 71
TP1416
V PCNT0
3.1V 70
0V
69
IC1401
68 0V
TP1413
IX0246AW
L3CLK
3.2V 67
TP1414
L3MODE
MD SYSTEM 3.2V 66
TP1415
L3DATA
3.2V 65
MICROCOMPUTER C1406
0V
GND 1
64
0V
63
R1476
3.2V
VCC 62
1K
EEPK
3.2V
EEPK
61
EEPD
0V
EEPD
60
3.2V EPCS
EPCS 59
R1474 PRO
0V
EEPRO
58
1K
0V
57
56 0V
55 0V
SYD0
0V
SYSD0
54
0V SYD1
SYSD1
49 50 53
SYD2
0V
SYSD2 52
SYD3
0V
SYSD3
51
4 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
Q1402
V RNC1404
IC1402
3 2 3
2.3V
S29294A
0V 0V
0V 3.2V
5 4
DI SK
1
0V
0V
3.2V
6 DATA 3
CS
R1416
10K 0V 3.2V R1473
7 GND VCC 2
100K
0V
C1405
8 1 0V
PRTCT
0.1
EEP-ROM
• The numbers 1 to 24 are waveform numbers shown in page 64 and 65.
7
C1208
0.047 Waveforms
6
7
TP1210
9
TP1216
1.55V
FEMON
75
1V
DADATA
74
RC120
78 77 76 0V
ADDATA 73
220
13 14 1.5V
DFCK
72
1.55V
BCLK
71
1.5V C1207
LRCK 70
1
23 22
DGND
18 0V 69
R1254
3.17V VDD3 68
220
DOUT 67
19 1.58V
DIC IN :1.58V
DIN 66
OTHER:0V
R1202
XO
1.3V 65
21
1M
C1203
1.3V XI 64
1
R1201
0V
DGND
63 150
20
3.17V XL1201
VDD1
62
C0001AW
C1205
VPD 0V C1204
61
17 12P
12P(CH)
3.17V
VXI 60 (CH)
3.2V
CDBCLK
59
3.2V
CDLRCK
58
3.2V
CDDATA
57
0V R1269
TEST4 56
00
TP1273
0V
TEST3
55
TP1279
58V
TESO1
54
48 49 50
EXPORT1 53
0V R1261
10K
EXPORT0 0V
52
R1266
X700KO
51 58V 10K
PLAY:0V 8
REC:1.5V
TP1214
R1221
220
C1952
0.01
8 7 6 5 4 3 2 1
IC1202
1.45V
1
1.7V
2
3
1.7V
4
13 14 15 16 17 18 19 20
5
1.7V
6
0V
7
74AC04FS
INVERTER
L1203
4.7µH
TP1701
C1743
47/4
C1703
47/4
R1478
AA.GND
10K
R1711
39K
L3CLK
L3MODE
R1475 L3DATA
1K
µCON 3.2V
BUCKUP
Q1807
Q1820
2SA1314C
2SA1162G
VREF3.2V 3.2V
3.18V 3.2V TP1802
C1807
2.4V
220/4
R1827
Q1821
270
RNC1407
2
3.08V
3 0V
0V 1
3.1V
0V
Q1822
2
0V
RNC1407
1
0V
3
0.1V
TP1801
R1804
220K
R1805
100K
PCNT0
3.1V
Q1803
RN1406
8 9
Figure 57 SCHEMATIC DIAGRAM (14/15)
6 9
~ should be measured by inserting the circuit,
as shown in the figure.
100K
Connect an oscilloscope.
270P
DADATA
ADDATA
DFCK
BCLK
LRCK
AND GATE
TP1911
IC1906
TC7ST08F
5.5V
C1951
1 Vcc
5
5.5V 0.047
1.6V
2
R1263 0V 2.8V
3 GND 4
10K
R1967 R1969
47 56
C1958
0.047
2.8V
C1954
5V
15P
C1957
R1963
1 REF VDD 16
(CH)
1.5K 100/6.3
2.6V 3.1V
2 PD LOCK
15
4.9V
3.2V
R1962 S2
3 VDDA 14
220K
2.6V 0V
4 AMPI S1 13
1.6V 5V
5 AMPO M2
12
0V
5V
M1
6 VSSA 11
2.2V
7 XI 0V CKO 10
R1968
0V
8 NC 4.9V VSS 9
220
IC1907
TC9246F
CLOCK
GENERATOR
C1992
0.1
1.37V
Vcc
14
1.7V
13
1.45V 1.37V
12
D1990
1.7V
11
1SS372
1.45V 1.37V
10
1.45V C1991
9
10
C1990
8
GND
1
1.7V
IC1990
C1711
0.01
C1716
24 0.01
28 27 26 25 24 23 22 21 20 19 18 17 16 15
IC1701
UDA1340
AD/DACONVERTER
C1709
0.047
1 2 3 4 5 6 7 8 9
10 11 12 13 14
C1701
0.01
C1702
0.047
R1713 R1714
C1700
39K 39K
0.01
L1702 R1701 R1702
10µH 680K
1M
L1701
TP1702 10µH
Q1701
R1710
2SC2412KR
30K
5.4V
R1715 3.2V
C1720
C1707
1K
0.01
10/16
3.85V
2.46V
1 3
3.85V
R1717
R1716
820
2 IC1802
3.3K
0V NJM431U
AA.GND
AA.GND
BUCKUP
REGULATOR
3.95V
R1821 R1820
1 1
3.3V
R1808
R1809
27K
390
4 3
3.2V
44V
2
0V
5 1
R1806
IC1801 TP1803
12
XC62EP32 5.4V
Q1804
2SA1162G
R1807
REGULATOR
12
Q1806 R1810
4.8V
1K
RNC1404
2
3
3.1V 0.7V C1704
R1811
27K 1
0V
1
Q1801
2SA1314C
5V 5V
C1801
2.2
43V
P.GND
R1802
270
3 2 2 3 0.15V
0V 0V Q1802
RN1406
0V 1 1
0V
J1720 R1708 R1707
330P
4.3K 4.3K
10
– 57 –
MD MAIN PWB-D
IC1916
74VHC08F
AND GATE
R1927
TP1901
22
DOUTO
2.2V 1.55V
GND
8 7 1 1
TP1902
3.2V
9 6 2 2
3.2V DIG IN: 2.2V
5 3 3
10
OTHER: 0V
DIGIN
97A:3.2V
3.2V
4
11 4 4
97B:1V
R1974
97A:3.2V 1.58V
TP1904
3
12 220
97B:0.9V
3.2V
2
13
R1973
1
14 Vcc
6.8K
1.58V
C1927
0.047
CD SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
R1712
100K
L3DATA
3.17V
C1715
22/4
L3CLK
L3MODE
C1712
47/4
R1947
Z2134S
JC121
0.047
PDOWN
R1939
1K
R1456 CN1902
1K
LOADIN
1 PDOWN
Q1451
RESET TP1502
2
RNC1407
2 TP1503
0.1V R1452
LOAD SW
3
3.18V 3 3.3K
TP1504
4 RESET
0V 1
R1454 1K
STID TP1505
5 MD-ST
R1458 6.8K
DSCK TP1506
6 DSCK
R1460 6.8K
SERCH TP1507
7 SERCH
KDATA R1462 6.8K
TP1508
8 KDATA
R1464 220
MDDATA TP1509
9
MDDATA
R1466 220
DSTB TP1510
10 DSTB
TP1511
R1463
D.GND
11
10K
C1425
TP1512
C1904
D.GND
12
0.047
0.33
D.GND
13
D.GND
D.GND
14
TP1515
15 DVDD
C1460
LR190 L1950 JC196
1 16 DVDD
1µH Z2134SC
4.7µH TP1516
AVCC
17
TP1517
TP1518
L IN
18
R1995 TP1519
AA.GND
19
2.2K
TP1520
20 R IN
R1994 TP1521
21 AD.GND
2.2K
TP1522
L OUT
22
R1731 TP1523
23 AA.GND
47
TP1524
24 R OUT
C1724
JC171
R1733
R1735
100P
Z2134SC JC170
47
47K
(CH)
Z2134SC
R1734 C1722 AA.GND
47K 100P
(CH)
11
MD-X60
2
1
CNS960
1
24
MD FLAT CABLE
(42)
12