Service manual
MD-R2
– 35 –
7
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Figure 35 SCHEMATIC DIAGRAM (6/6)
The numbers 1 to 23 are waveform numbers shown in page 44, 45.
123456789
10
201918171615141312
11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
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
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
2
3
4
5
6
7
8
1
2
3
4
5
6
7
16
15
14
13
12
11
10
89
1
2
34
5
1
2
34
5
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
5
14
13
12
11
10
6
7
8
9
1
2
3
4
5
14
13
12
11
10
6
7
8
9
REF
VDDA
PD
AMPO
AMPI
XI
VSSA
LOCK
VDD
S1
S2
M1
M2
VSS
CKO
Vcc
GND
BLCK
LRCLK
ADDATA
DADATA
DFS1
MUTE
SYSCLK
AA.GND
DFS0
I/O3
A0
A7
WE
A9
A4
A8
I/O4
A6
I/O2
A1
CAS
A5
A3
A2
RAS
VCC
OE
GND
I/O1
PDOWN
BACKUP
BACKUP
µCON 3.2V
BACKUP
DOUTO
PDOWN
BACKUP
EEPRO
R/P
TEST0
SYSD3
SYSD2
AVCK1
AVCK2
EPCS
EEPK
XRST
TEST2
S2
S1
SYSD7
SYSD6
ADPON
DAPON
LDON
PCNT0
PCNT1
DFS0
DFS1
VCC
SYRD
SYRS
SYWR
SYSD1
SYSD0
DAMUT
FOK
MUTE
EEPD
GND
TEST1
DIGEX
DIGCD
DOUTMT
VREF3.2V
PCNT0
PCNT0
PCNT0
24
23
P.GND
3
1
223
1
VREF3.2V
D.GND
DVDD
DVDD
D.GND
D.GND
D.GND
D.GND
DSTB
MDDATA
KDATA
SERCH
DSCK
LOAD SW
MD-ST
RESET
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SK
VCC
PRTCT
DI
DATA
GND
CS
RAD1
VDD2
FODRF
RAD0
RAWEX
RARASX
X176KO
TEST2
TEST1
TEST0
DGND
VDD1
TCRS
RAA10
RAA0
26 27 28
RAA1
RAA2
RAA3
RAA9
RAD3
RAD2
RACASX
RAOEX
RAA8
RAA6
RAA5
RAA4
DGND
WBI
VBAT
FIN
EIN
BIN
AIN
TCG
AGND
EFMI
AVCC
SFSY
DINTX
COUT
MCCK
FOK
SENSE
VDD1
DGND
78 77 76
TOTMON
TEMON
SBCK
SBO
SBSY
VPD
DGND
XI
XO
SYD7
100
99 98
SYWRX
SYRDX
SYRS
EFMMON
EXPORT0
RSTX
SYD0
SYD1
SYD2
SYD3
SYD4
SYD5
SYD6
EXPORT1
TESO1
TEST3
TEST4
DIN
DOUT
VDD3
DGND
CDDATA
CDLRCK
CDBCLK
VXI
LRCK
BCLK
DFCK
ADDATA
DADATA
FEMON
VDD1
RAA7
FODRR
TRDRF
TRDRR
SLDRF
SLDRR
SPDRF
SPDRR
48 49 50
PLCK
ACRCER
EFMO
X700KO
DTEMP
GND
Vcc
L3DATA
L3MODE
L3CLK
VREF3.2V
GND
DIGIN
GND
DIGOUT
CNP301
P30 3 - H
CNS1904
CNW903
TO MAIN PWB
AVCK3
A/B
GND
Vcc
A8
A7
A5
A4
A6
A3
A2
A1
A0
A4
A5
A6
A7
A8
A3
A2
A1
A0
A9
SYRS
SYRD
SYWR
SYD7
SYD6
SYD5
SYD4
SYD3
SYD2
SYD1
SYD0
XRST
DINT
MCCK
CIN
DSENSE
FOK
EEPK
EEPD
SYD0
EPCS
EPCS
EEPK
EEPD
SYD1
LDON
PRO
PRO
SYD3
1
SYD2
XRST
SYD4
SYD5
SYD6
SYD7
SYWR
SYRD
SYRS
FOK
A9
LOADIN
RESET
2
1
3
SERCH
KDATA
DSCK
MDDATA
DSTB
DADATA
BCLK
LRCK
AD
DFCK
DFCK
BCLK
LRCK
ADDATA
DADATA
STID
NC
CNP471
TO MAIN PWB
P30 4 - H
2
3
1
2
3
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
9
40 41 42 43 44
45 46 47 48 49 50
SYSD5
SYSD4
49 50
2
91 90 89 88 87 86 85 84 83 82 81
ADMUT
EMPH
82 81
80
79
78
77
76
R1947
47
IC1202
IX2474AF
4M BIT-D-RAM
C
1211
1
TP1275
TP1204
R1254
220
TP1210
C1208
0.047
R1211
220
C1209
1
C1202
1
RC120
220
R1210
100
C1203
1
IC1201
LR376481
ENDEC
TP1215
TP1274
R1653
100K
R1651 100K
R1657 120K
R1655 120K
R1661 82K
R1659 82K
R1665 62K
R1663
62K
TP1212
TP1214
TP1213
R1827
270
Q1821
RNC1407
Q1822
RNC1407
Q1820
2SA1162G
R1422
10K
C1401
0
232AW
SYSTEM
O
COMPUTER
R1423
10K
R1424
10K
R1475
1K
R1474
1K
C1405
0.1
IC1402
S29294A
R1414
10K
R1416
10K
R1473
100K
TP1455
TP1456
TP1457
R1476
1K
C1406
1
TP1217
TP1218
TP1216
C1207
1
C1210
1
R1456
1K
R1202
1M
C1204
12P(CH)
XL1201
33.8688MHz
R1201
150
C1205
12P
(CH)
R1418
47K
C1407
0.022
R1969
56
C1954
15P
(CH)
C1952
0.01
R1962
220K
C1955
0.047
C1958
0.047
R1963
1.5K
C1956
47/6.3
C1953
0.47
IC1907
TC9246F
CLOCK GENERATOR
R1961
100
C1957
100/6.3
C1964
0.001
R1964
6.8K
R1968
220
R1967
47
AND GATE
IC1906
TC7ST08F
C1951
0.047
TP1412
R1809
390
Q1807
2SA1314C
TP1802
IC1801
XC62EP32
REGULATOR
C1805
1
TP1503
TP1501
TP1502
TP1512
TP1511
CN1902
R1733
1K
R1758
1K
R1759
1K
C1724
22P
TP1520
TP1518
JC171
22P
TP1519
TP1521
TP1523
TP1524
TP1522
LR190
22
L1950
1µH
JC196
22P
(CH)
TP1515
TP1516
TP1517
Q1451
RNC1407
C1425
0.047
C1917
68P
TP1510
TP1509
TP1508
TP1507
TP1505
TP1506
R1452
3.3K
R1454 1K
R1458 6.8K
R1460 6.8K
R1462 6.8K
R1464 220
R1466 220
TP1504
R1994
47
R1221
220
R1808
27K
R1708
6.8K
TP1273
C1806
10
C1807
220/4
C1801
2.2
C1803
2.2
Q1802
RN1406
Q1803
RN1406
TP1801
R1801
1.8K
Q1801
2SA1314C
R1802
270
R1805
100K
R1804
220K
C1802
100/10
TP1279
TP1454
TP1416
TP1458
R1821
1
R1820
1
R1281
47
TP1278
R1477
10K
TP1902
TP1901
TP1904
CNP1904
C1927
0.047
AND GATE
IC1916
74VHC08F
C1913
22P
R1927
22
R1974
220
R1973
6.8K
R1939
1K
L1203
4.7µH
L1201
0.47µH
IC1990
74AC04FS
INVERTER
C1992
0.1
C1991
10
D1990
1SS372
C1990
1
C1206
1
TP1911
E
2
-PROM
(CH)
7
8
9
6
13
14
18
19
17
21
20
11
10
22
23