50
SX-20-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
10. SCHEMATIC DIAGRAM
10.1 MAIN ASSY (1/2)
A
1/2
C7
1
5
NM
C7
1
4
NM
C1
3
3
R
100P
C1
3
3
L
100P
R1
4
4
R
NM
R1
4
4
L
NM
R148
1K
R
216
100
C1
2
2
100P
-J
R1001
470
2K2
R284
J
162
J
U
M
P
E
R
J3
4
9
JUM
P
E
R
R3
5
7
47K
220K
R3
5
1
R
C1
1
9
R
220N
(E
B
)-100V
C
232
10N
-K
C132L
NM(EB)
J369
NM
NM
C124
C117
100N
R147
470K
100P-J
C313
C8
0
2
10N
C8
0
3
100N
C
235
10N
-K
C
713
22N
-J
C170
100/16
91K
R
701R
C7
0
0
R
100P
-J
91K
R7
0
1
L
C7
0
0
L
100P
-J
R700L
0
R709L
470
R115R
1K
R115L
1K
470K
R1
1
6
L
R105R
220
R110L
220
470K
R1
1
1
L
470K
R1
1
1
R
R103R
220
R105L
220
470K
R1
0
6
L
R1
0
4
R
470K
R103L
220
R804
0(2012)
R7
0
2
R
91K
R705R
43K
R703R
680
C703L
4.7/50
R7
0
2
L
91K
C704L
2N2(EB)-100V
R705L 43K
C707L
47/25
R146
10K
R145
10K
C106R
10/50
10/50
C109L
C106L
10/50
10/50
C103R
R708R
0
C1
7
8
10/50
D
Z
506
NM
D
Z
505
NM
R706L
560
D
Z
503
NM
R708L
0
R113R
1K
1K
R113L
C1
7
7
10/50
C7
0
9
R
1N
8(E
B
)-100V
C710L
10/50
C7
0
9
L
1N
8(E
B
)-100V
C1
7
9
10/50
NM
J370
4.7/50
C114R
R1
2
1
L
5K
6
C1
3
4
NM
(E
B
)
C1
1
8
L
4
7
N
C111L
4N7
5K
6
R1
2
1
R
J
159
N
M
C130
100/25
R
219
100
220N(EB)-100V
C137
Q
217
KT
A1
5
0
4
S
J3
8
5
NM
J4
0
7
NM
4.7/50
C122R
R
217
100
C1
2
3
100P
-J
C
233
10N
-K
Q2
1
0
2SC
3052
R
268
1K
C5
5
1
NM
J4
0
3
NM
C603R
56P-J
R603R
4K3
C603L
56P-J
R603L
4K3
C8
0
0
10N
Q2
1
3
2SC
3052
Q
218
KT
A1
5
0
4
S
R
264
10K
R2
1
5
100(1/
4)
100/
16
C
143
N
M
(EB)
C1
4
0
R218
100(1/4)
C1
2
9
22/25
100
R
259
RT1P144C
Q315
R361
0
R3
5
5
3M
3
C601R
10/50
D1
0
0
1
K
D
S
4148U
D1
0
0
0
KDS4
1
4
8
U
Q2
1
1
2SC
3052
R
294
100K
R
276
NM
R
286
47K
100
R
255
K
T
A
1268B
L
Q1
1
3
C118
2.2/50
C1
1
9
10N
-K
Q1
0
7
K
T
C
3198Y
NM
C3
4
6
R
INC2001AC1
Q314R
Q317
INC2
0
0
1
A
C1
R370R
47
R3
5
3
R
47
Q314L
IN
C
2001A
C
1
Q316
INC2
0
0
1
A
C1
R3
5
3
L
47
R1
2
4
R3
5
1
L
0
R700R
R709R
470
R110R
220
470K
R1
0
4
L
470K
R1
0
6
R
470K
R1
1
6
R
4.7/50
C703R
2N2(EB)-100V
C704R
R149
10K
R703L
680
10/50
C103L
C109R
10/50
100K
R1
5
0
L
100K
R1
5
0
R
R706R
560
C1
3
5
NM
C1
8
0
10/50
DZ
5
0
4
NM
C710R
10/50
J311
JUMPER
C1
1
7
L
6N
8(E
B
)-100V
220N
(E
B
)-100V
C
119L
C1
1
8
R
47N
C1
1
1
R
4N
7
C121
10/50
NM
C132
R
287
10K
C
224
100N
-K
100K
R
273
4.7/50
C122L
D
111
1S
S
133T
8
5
6
7
UTC4580
4
3
2
1
UTC4580
R1000
470
C6
0
4
R
560P
-J
560P
-J
C
604L
R6
0
4
L
180K
180K
R6
0
4
R
C1
4
1
100/
16
R
288
470K
C
225
100N
-K
C601L
10/50
R143
33K
R120
560K
C
347
N
M
C
350
NM
R370L
47
D1
1
0
C1
1
7
R
6N
8(E
B
)-100V
2SC
3052
Q2
1
2
R
289
100K
2SC
3052
Q2
1
4
100P
C104L
C113R
10/50
J367
NM
C132R
NM(EB)
R704R
560K
C705L
1N8(EB)-100V
560K
R704L
C702R
47/25
C7
0
1
R
100P
-J
C7
0
1
L
100P
-J
C1
3
0
R
NM
C1
3
0
L
NM
C1
1
0
L
100P
-J
C105R
100P
C108L
100P
C108R
100P
NM
C7
1
8
L
NM
C7
1
8
R
100P
C104R
C105L
100P
NM
C7
1
6
R
NM
C7
1
7
L
C113L
10/50
D5
2
0
1N
4007
J368
JUMPER
C707R
47/25
C1
3
6
NM
NM
R710R
C705R
1N8(EB)-100V
C706R
5N6(EB)-100V
R7
0
7
R
100K
R7
0
7
L
100K
C708L
1/50
4
3
2
1
NJM2068
R710L
NM
C1
1
5
L
1/
50
1/
50
C1
1
5
R
J3
7
2
NM
100
R
257
R
267
NM
6K
8
R
256
NM
C1
2
8
R
47
R220R
C1
4
2
NM
(E
B
)
R6
0
1
R
47K
R6
0
2
R
910
R6
0
6
L
1K
C131
4.7/50
R6
0
1
L
47K
C8
0
1
100N
Q2
1
5
C1
2
6
10N
-K
4K
7(
1/4)
R1
4
1
R1
3
1
3K
6
R352R
2K2
C3
2
1
470/
10(6.
3*
11)
D1
0
0
2
1S
S
133T
C3
4
9
NM
47
R285R
2K2
R214
C3
4
8
NM
2K2
R456
47/25
C702L
C1
1
0
R
100P
-J
C7
1
6
L
NM
NM
C7
1
7
R
10/50
C1
6
6
10/50
C1
6
7
C706L
5N6(EB)-100V
C708R
1/50
5
6
7
8
NJM2068
C1
1
4
L
4.
7/
50
330/6.3
C128
J3
7
4
JUM
P
E
R
R6
0
6
R
1K
R
602L
910
C1
2
8
L
NM
47
R220L
100K
R
274
220K
R3
5
6
D1
0
0
3
1S
S
133T
47
R285L
C
234
10N
-K
J371
JUMPER
A
2/2
A
2/2
TUNER PACK
(TU)
: Audio Signal Route (Tuner L ch)
(CD)
: Audio Signal Route (CD L ch)
(HP)
: Audio Signal Route (Headphone L ch)
(PH)
: Audio Signal Route (PHONO L ch)
(REC)
: Audio Signal Route (RECORDER OUT L ch)
: Audio Signal Route (L ch)
(TU)
(PH)
(REC)
(CD)
(TU)
Summary of Contents for SX-20-K
Page 7: ...7 SX 20 K 5 6 7 8 5 6 7 8 A B C D E F ...
Page 11: ...11 SX 20 K 5 6 7 8 5 6 7 8 A B C D E F IC502 IC503 IC301 ...
Page 32: ...32 SX 20 K 1 2 3 4 A B C D E F 1 2 3 4 Pin Function ...
Page 47: ...47 SX 20 K 5 6 7 8 5 6 7 8 A B C D E F 1 x9 x5 x3 x3 x5 x6 x6 x5 x2 x15 x2 x2 x2 x4 x4 A A A ...