Sharp MD-R3H Service Manual page 47

IC601-1
NJM4580D
LINE AMP.
R607
1K 0V
R617 C613
+
5
0.01V 330 47/10
C607
(1/2) 7
220P
8
_
6
R605
7.8V
22K
0V R611
1.5K
R613
100
R609
C615
1K
100/10
C611
47P
(CH)
IC601-2
R608
NJM4580
1K
0V
+ C614
3
R618
0.01V 47/10
330
C608
1
(2/2)
220P
4
2 _
R606
–7.8V
22K R612
0V
1.5K
R614
100
R610 C616
1K 100/10
C612
47P
(CH)
C203
47/10
C212
3.3/16
C204
1/50
C205 L202
10µH
4.7/25
C207
100/10
4 3 2 1
ER
C208
25 26 27 28
3.3/16
C209
4.7/25
C516
10/16
0V
C224
1
0.022
3
3.32V
IC501
S81233YX
REGULATOR
+B
Q505
KRC102 S 0V
4.58V
0.08V
C517
C518
100/16 100/10
R512
5.84V
[ ]...MD EJECT
470
[6.8V]
5.22V
[6.2V]
+B 12.3V
Q506
2SD2394 F
15 16 17 18 19 20 21 22 23 24
FC402
B
7
( )...MUTE ON
Q601
R615
2SC2878 B
47K
+B
MUTE
0V
–6.3V(0.6V)
R619
10K
–6.3V
(0.6V)
R620
10K
0V
R616
47K
R653
1K
–B
C651
10/16
C653 R651
150P 100K
R652
C654
100K
150P
C652
10/16
R654
1K
+B
–B
Q502
2SB562 C
–8.2V
–13.0V
–B R505
680
R506
–8.8V
100
C510
C509
D503 47/25
1/50
MTZJ9.1B
C511
D504
C512 47/25
MTZJ9.1B
1/50
R508
8.9V
100
R507
680
12.1V
+B
8.2V Q503
R502
2SD468 C
2.2
POSISTOR
C514
C513
C515 D505
10/16
47/25
10/16 MTZJ6.8A
R510
6.46V
100
R509
820
12.0V
2
5.83V
8.25V +B Q504
2SD2012 Y
(FIN)
+B
D517
RL104A
C528
1000/6.3
C507
33/50
–31V
–31V
R504
33K
GND
0V<5.0V>
+B
R511 0.8
POSISTOR
+B
D509
1SS133
C520
0.001 +B
R514
100K
R516
D508
220K
MTZJ27D
+B
+B
+B
1 2 3 4 5 4 3 2 1
CNS502 CNS902
P41 12 - B P45 9 - H
TO CD SERVO TO DISPLAY TO CD CHANGER
PWB PWB
8
Figure 47 SCHEMATIC DIAGRAM (8/10)
C451
47/10
(MUSE)
C455
R453
820P
33K
C456
R454
820P
33K
C452
47/10
IC651-1
NJM4560D
R663
OPE AMP.
1K
0V
+
5
0V
C655
(1/2) 7
27P
R659
C657
(CH)
6 –
10
220/10
0V
0V
2 –
C656
0V
27P
(2/2)
1
(CH)
0V C658 R660
3 + 4
220/10 10
R664
8
1K
IC651-2
NJM4560D
R667 R668
C659
C660
100/10 82 82
100/10
+B
(
D651
MTZJ9.1B
–3.4V
R670
330
POSISTOR
R501
8.2
C501
1000/25
+B
C503
C502
4700/25
4700/25
4700/25
+B D555
RL104A
R551
8.2
POSISTOR
+B
D501
MTZJ6.8B
POSISTOR
Q507
Q501
R519
2SD2394 F
KTA1266 GR
0.9
(FIN)
+B
–32V 11.5V
R503 8.37V
R520
1.8K
C504
270
–38V
8.96V
220/50 C508
100/10
C505
220/10
10/50
C506
D502 D511
MTZJ33B RD9.1JS1
Q509 Q508
0V
2SD468 C +B 2SD2394 F
(FIN) <7.5V>
0V<7.5V> 11.6V
R526 0V
R523
0V<8.2V> <11.6V>
0V<5.6V> 680
220
C523
D513
C521
220/10 R524
MTZJ5.6C
220/10
33K
< >...CD FUNCTION
0.1V
11.6V
2
3
C525
Q511
0.01
1
KRC102 S
+B
+B
5 4 3 2 1 1 2 3 4
CNS504 CNS505
P42 1 - D P42 1 - B
TO CD CHANGER
PWB PWB
9 10
– 47 –
( )...MUTE ON
Q451
R451
2SC2878 B R455
330
MUTE
100
L-CH
0V
–6.3V(0.6V)
C459
470P
R457 C453
10K 470P
J101
L451
LINE OUT
0.22µH
–6.3V C460
(0.6V) 470P
C454
470P
R458
0V
10K
R-CH
R452
Q452 R456
330
2SC2878 B 100
MUTE
L-CH P44 5 - A
1
GND
2 CNS652
R-CH
3
TO DISPLAY PWB
)...MUTE ON
C667
0.1
Q653
KRC102 S
R669
–6.3V
2.7K
(–)
–B
+B
GND POWER TRANSFORMER
F551
D551 D554
T1.0A 250V
RL104A RL104A
D552
D553
F552
RL104A
RL104A
T1.0A 250V
+B
+B
D556
RL104A
D559
RL104A
D557
D558
RL104A RL104A
+B
F553
T1.0A 250V
+B
11.6V
Q510
KRA102 S
11.6V
MAIN PWB-A
11
MD-R3H
T551
T.F
LUG551 LUG552
AC POWER
SUPPLY CORD
AC
When Servicing,pay attention as the area
enclosed by this line ( ) is directly
connected with AC main voltage.
12