I/O Section (1/2) - Sony HCD-EA20 Service Manual

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6-21. SCHEMATIC DIAGRAM – I/O SECTION (2/2) –
3 7 6 3 1 5 1 5 0
J251
R171
J171 1k
C171
220p
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L251
C273
0.1 C252 JW251
25V 1000 6.3V
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IC252
MM1568AJBE
R257
75
C269 0.1
C268
R256
1000 6.3V
75
JW254
R255
75
JW253
C266
1000 6.3V
C272
220p
R172
1k
R261
10k
R262
10k
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C161
R251 0.1
C159
0 25V
0.1
F
25V
F
C256 10 50V
C257 22 25V
C258
0.01 25V
C162
0.1
C163 10 50V C157
0.1
25V
F
Q Q C164
10 50V 3 7 6 3
Q251
DTA114EKA
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.
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2 4
9 9 8
C141 C145
0.1 0.1
F F
R151
10k
L152
C158 0.1 25V F
C151
10
50V
C152
10
50V
R191
75 C155
1/10W 100 16V
1 5 1 5 0 8 9 2 4
C156
0.1
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HCD-EA20
2
9 9
CN103
15P
C169 C170
FB151
10 0.1
0UH
50V F
C142 22p
C144 22p
C143 22p
R153
10k
9 8 2 9 9