Sharp MD-R3H Service Manual page 46

MD-R3H
R101
A
1K
L-CH
C101
C103
0.022 R119
100P
L101
(CH) 100K
0.22µH
J101
LINE IN
C104
R120
100P
100K
(CH)
R102
1K
R-CH
8
B
14
7.93V
R380
10K
R382
180
3
–8.1V
+B
C
CNP351
1
SW
2
+B
P44 3 - A
L 3
CNS351
G 4
R 5
TO MIC PWB
–B 6
D
C301
0.01
J301
E
COAXIAL
DIGITAL IN2
R301
82
C310
0.022
F
L302
R309
10K 10µH
C304
0.1
R307
22
3 2 1
3 2 1
G
TX301
RX301
DIGITAL IN-1 DIGITAL OUT
(OPTICAL JACK)
H
NOTES ON SCHEMATIC DIAGRAM can be found on page 33.
1
R103
1K
R105
100K
C385
0.022
R104
1K
R106
100K
9 3 4 1 2
11 10
IC380
MC14066B
ANALOGUE
SWITCH
6 5 7
12 13
7.95V
R381
10K
R383
Q380
180
KRC102 S
2
7.9V
1 –8.2V
–B
+B
-B
ANALOG PLAYBACK SIGNAL
ANALOG RECORD SIGNAL
MIC SIGNAL
DIGITAL RECORD SIGNAL
CD SIGNAL
C535 C458
0.022 0.022
DIGITAL PLAYBACK SIGNAL
R304
2.7K
R303 R305
220K 56K
R302
330
5 6
14 13 12 11 10
VDD
C302
74HCU04
0.1
INVERTER
3 4 1 2 9 8 7
C312
0.022
D302
1SS133
7 8 9 13
10 11
IC302 GND
74HC10AP
NAND GATE
VDD
6 5 4 3 12 2
R308
22
L301
C305 10µH C308
R310
0.1
0.1
3.3K
6 5 4 3 2 1
CNP301
6 5 4 3 2 1
CNS301
4 3 2 1
CNS801 1 2
CN1904
P49 11 - C
TO MD MAIN PWB
CNP801
P41 12 - C
TO CD SERVO PWB
2
Figure 46 SCHEMATIC DIAGRAM (7/10)
IC101-1
NJM4560D
C107
R109
OPE AMP.
1/50 1K
0V
3 +
C115
0V
47/10
C109
1
(1/2)
220P
C105
8
R107 2 –
220P
7.8V
100K 0V
R113
1K
R115
100
C117
R111
100/10
1.5K
C113
47P (CH)
IC101-2
C108
R110
1/50 NJM4560D
0V
1K
5 +
C116
0V
47/10
C110
(2/2) 7
220P
C106
4
6 –
R108
220P
–7.8V
100K
0V R114
1K
R116
100
R112
C118
1.5K
C114
100/10
47P
(CH)
IC301
R313
1K
1
R312
82K
14
+B
+B
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
CNS1904
CN1902
P49 12 - F
TO MD MAIN PWB
3 4
– 46 –
P44 4 - A
TO DISPLAY PWB
CNS101
CNP101
1 2 3 4 5 6
L-CH
+B
R-CH
–B
–B
+B
+B
–B
R414 8.2K
R415 8.2K
R416 8.2K
Q930
KTC3875 GR
2.9V
DSTB 0.1V
R932
0V
10K
R930
470K R406 220K
R407 220K
Q935
KTC3875 GR
R408 220K
4.2V
0.1V
MD DATA R409 220K
R936
R410 220K
0V
10K
R937
470K
R401 560
R402 560
R403 560
R404 560
R405 560
SW501
RESET
1 2
8 7 6 5 4 3 2 1
CNP401 CNP402
FC401
5
R607
0V
1K
+
5
R601
C601
C607
(1/2
470
47/10 220P
(MUSE)
C603
_
6
220P R605
22K
0V R
1.
R609
1K
C611
47P
(CH)
IC
R608
N
1K
0V
3 +
R602
C602 C608
470
(2/2
47/10
220P
(MUSE)
C604
_
2
R606
220P
22K R6
0V
1.
R610
1K
C6
47
(CH
C203
C202
47/10
47/10
C212
3.3/16
C204
1/50
C205
4.7/25
9 8 7 6 5 4 3 2 1
14 13 12 11 10
IC201 µ
UDA1340
AD/DA CONVERTER
C20
15 16 17 18 19 20 21 22 23 24 25 26 27 28
3.3
C209
4.7/25
C224
0.022
+B
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
CNP901
P44 1 - E
TO DISPLAY PWB
6
IC
N
L