Service manual

MD-R3
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7
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Figure 47 SCHEMATIC DIAGRAM (8/10)
C544 0.022
D554
RL104A
D553
RL104A
D552
RL104A
D551
RL104A
CNP652
1
2
3
Q510
KRA102 S
R-CH
L-CH
C224
0.022
C228
0.022
C518
100/10
C457 0.022
D651
MTZJ9.1B
R670
330
C667
0.1
Q653
KRC102 S
R669
2.7K
C529 1000/6.3
C528
1000/6.3
D507 RD5.6JS2
Q505
KRC102 S
D506 MTZJ7.5B
Q506
2SD2394 F
POSISTOR
R502
2.2
C503
4700/25
C527 100/10
2

0
C203
47/10
R453
33K
C455
820P
C613
47/10
C614
47/10
R617
330
R618
330
F553
1.0A
D559
RL104A
D558
RL104A
D557
RL104A
D556
RL104A
R517 220
R518 220
D501
MTZJ6.8B
D517
RL104A
D516 1SS133
R516
220K
C520
0.001
C543
0.1
D510 1SS133
D509
1SS133
CNP505 CNP502
T.F
T551
POWER TRANSFORMER
C652
10/16
C651
10/16
R653
1K
R664
1K
R663
1K
R654
1K
C658
220/10

C657
220/10
C654
150P
C653
150P
R652
100K
R651
100K
R660
10
R659
10
R668
82
C660
100/10
R667
82
C659
100/10
IC651-1
NJM4560D
OPE AMP.
C656
27P
(CH)
R615
47K
CNP503 CNP504
C525
0.01
Q511
KRC102 S
POSISTOR
R551
8.2
D555
RL104A
33/50
C507
R504
33K
D502
MTZJ33B
Q501
KTA1266 GR
C505
10/50
C545
0.022
R503
1.8K
C504
220/50
R526
680
POSISTOR 0.9
R522
R523
220
R524
33K
C521
220/10
POSISTOR
R519
0.9
100/10
C524
Q509
2SD468 C
D513
MTZJ5.6C
C523
220/10
Q508
2SD2394 F
D512 MTZJ8.2C
C522 100/10
C508
100/10
Q507
2SD2394 F
D511
RD9.1JS1
220/10
C506
R520
270
R511 0.8
POSISTOR
C616
100/10
R205 1K
1K
Q503
2SD468 C
Q504
2SD2012 Y
C204
1/50
C456
820P
R454
33K
L451
0.22µH
C519 0.022 C542 100/10
R203 1M
680K
C209
4.7/25
L202
10µH
C207
100/10
C205
4.7/25
R616
47K
POSISTOR
R501
8.2
C502
4700/25
R619
10K
R620
10K
Q601
2SC2878 B
MUTE
Q602 2SC2878 B MUTE
R614
100
R613
100
C615
100/10
R609
1K
R610
1K
R607
1K
R605
22K
R611
1.5K
R606
22K
1K
R608
R612
1.5K
C
603
2
20P
C607
220P
C611
47P
(CH)
220P
C608
6
04
2
0P
C612
47P
(CH)
R458
10K
R457
10K
Q451
2SC2878 B
MUTE
Q452
2SC2878 B
MUTE
C517
100/10
R512
470
D508
MTZJ27D
R514
100K
D504
MTZJ9.1B

D505
MTZJ6.8A
R507
680
C515
10/16
C516
10/16
C513
47/25
C514
10/16
R510
100
R509
820
1/50
C510
C509
47/25
C511
47/25
C512
1/50
R508
100
D503
MTZJ9.1B
R506
100
Q502
2SB562 C
R505
680
C501
1000/25
C453
470P
C460
470P
C459
470P
C452
47/10
C451
47/10
R452
330
R451
330
R455
100
C454
470P
R456
100
6
5
7
2
3
1
43214321
4
8
1
7
2
3
6
5
54321 54321
1
8
4
32
2827262524
3
12345
6
0V VSSA
1.6V VINL
3.3V VDDA
1.6V VREFA
1.6V VINR
0V
VADCN
GND
R-CH
L-CH
CH 9V
D-G
M-G
CH 5V
CH CLK
CH RDY
CH DATA
CH CMND
CD (FUNC)
CH CMND
CH CLK
CH RDY
CH DATA
C208
3.3/16
FIL 1 FIL 2
5V
U-CON GND
BACK UP 5V
CD 7.5V
C212
3.3/16
–31V
MD DATA
MD LO/EJ
MD K-DATA
MD DSCK
DFS1
MD DSTB
–31V
C526 4700/25
GND
(FIN)
IC651-2
NJM4560D
P.GND
CD 5V
S.GND
(FIN)
2423222120191817161514
3
(FIN)
IC601-2
NJM4580
(1/2)
(2/2)
(2/2)
(1/2)
GND
VSSO 0V VOUTL 1.6V VDDO 3.3V VOUTR 1.6V
AVDD
3
.
3V
VREFD 1.6V
0

E
RTER
IC601-1
NJM4580D
LINE AMP.
+B
3
2
1
+B
+B
+B
+B
+B
[ ]...MD EJECT
5.22V
[6.2V]
0.08V
0V
11.6V
0V<8.2V>
0V
<7.5V>
8.37V
11.5V
0V<5.0V>
0V<5.6V>
0V<7.5V>
–6.3V (8.0V)
( )...MUTE ON
< >...CD FUNCTION
5.84V
[6.8V]
12.3V
4.58V
3.32V 8.25V
0V
11.6V
0.1V
–32V
–38V
–31V
0V
<11.6V>
11.6V
11.6V
8.96V
8.9V
12.1V
12.0V
5.83V
6.46V
8.2V
–13.0V
–8.8V
–8.2V
–6.3V
–3.4V
0V
7.9V
–7.9V
0V
0V
0V
0V
0V
7.8V
0.01V
0V
0V
0.01V
0V
0V
CNS502
E
Y
PWB
1
MAIN PWB-A
+B
FC402
+B
+B
+B
P42 1 - D
TO CD CHANGER 
PWB
P41 12 - B
TO CD SERVO
PWB
P45 9 - H
TO DISPLAY
PWB
P42 1 - B
TO CD CHANGER
PWB
CNS902 CNS504 CNS505
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
AC POWER
SUPPLY CORD
AC120V, 60Hz
+B
+B
+B
CNS652
P44 5 - A
TO DISPLAY PWB
J101
LINE OUT
( )...MUTE ON
–6.3V(0.6V)
–6.3V
(0.6V)
0V
0V
( )...MUTE ON
–6.3V
(0.6V)
0V
–6.3V(0.6V)
0V
+B
IC501
S81233YX
REGULATOR
C655
27P
(CH)
F552
1.0A
F551
1.0A
_
+
_
+
–B
+
–
–
+
–7.8V
(–)
–B
–B
–B