Technics SA-DX950 Service Manual page 62

SCHEMATIC DIAGRAM - 6
: +B SIGNAL LINE
DIGITAL CIRCUIT
R1234 C1237
6.8K
330P
R1236 C1240
4.7K 2700P
R1235
C1231
1K
16V33
R1231
47K
14 13 12 11
VSS
IC1230
R1232
47K
VCC
1 4
2 3
R1238
C1239
18K
2700P
R1233 R1240
R1241
1K
47K
1K
IC1230
NJM2060MTE1
OP AMP
R1521 R1522
4.7K 22K
C1524
16V10
R1523
220K
5
8 7 6
IC1521
2 3 4
1
C1529
16V10
C1530
16V10
R1524 R1525
10K
10K
IC1521
NJM2115MTE1
R1703
10K
OP AMP
<4.93V>
Q1702
R1706 R1705
330 330
<4.96V>
<9.42V> <5.58V>
R1707 C1703
3
820 0.01
<6.22V>
IC1701
Q1703
2
1
C1704
16V10
C1701
16V100
C1706
390P
Q1701
IC1701
2SD2137PQTA
BA25BC0FP
REGULATOR
REGULATOR
Q1703
Q1702
2SC1740SSTA
2SD2374PQAU
REGULATOR REGULATOR
: -B SIGNAL LINE
R1242
18K
9
10 8
8
5 6 7
1
R1249
R1245
18K
C1251
16V33
R1252
47K
SOUT_LIN
R1527
R1528 C1532
4.7K
22K 16V10
C1531
R1529
390P
8 7 6 5
IC1522
NJM2115MTE1
1 2 3 4
R1531
10K
R1530
10K
Q1701
<5.58V>
R1701
4.7
<7.67V>
<7.53V>
R1702
4.7
<5.58V>
C1702
R1704
10V3300
2.7K
GND
: MAIN SIGNAL LINE
R1247
C1261
1K
50V4.7
7 6 5
IC1231
2 3 4
6.8K
C1250
C1260
R1260
0.022
NJM4580MTE1
50V4.7
100K
R1251
R1250 1.8K
560
SOUT_RIN
220K
IC1522
OP AMP
TO
TRANSFORMER
3
CIRCUIT
2
(W702) ON
1
SCHEMATIC
CN702 DIAGRAM-12
IC1231
OP AMP
R1943 100
R1942 100
R1945 100
R1933 100
R1932 100
R1931 100
R1934 100
R1929 100
R1916 100
R1930 100
R1928 100
ST9482
1
DT9482
2
CLK9482
3
VCR_MUTE
4
V_SELA
5
V_SELB
6
SCDOUT
7
INTREQ
TO
8
PANEL CIRCUIT
CSRST
9
(CN904A) ON
CS49
10
SCHEMATIC
CCLK
11
DIAGRAM-8
CDIN
12
CD_OUT
13
CS42
14
RST42
15
OVLERR
16
DSP_OFF
17
18
CN904B