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2
3
4
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8
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B
C
D
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7
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B
A
X23.Sch
Titel
Size
File:
Date:
Drawn By:
Sheet
Revision
Model No:
27-Jan-2002
TASY J.S.
ALTO Mobile : X23 MAIN BOARD
1
1
of
X23
V1.0
A4
C101
104P/250VAC
+15V
-15V
R103
2R2 1/2W
R102
2R2 1/2W
1
2
3
J101
3P2.5
AGND
SW205
SW-PBA/6PC
3
2
1
IC201A
MC33079
5
6
7
IC201B
MC33079
D201
4148
D202
4148
D203
4148
D204
4148
C204
220P
-15V
+15V
2
1
3
X8
CN-BAL(FEMALE)
10
9
8
IC201C
MC33079
12
13
14
IC201D
MC33079
3
2
1
IC202A
MC33079
5
6
7
IC202B
MC33079
VR201
10KB
C242
100/25V
R204
10K0
R201
10K0
R202
10K0
R203
10K0
R251
10K0
R205
10K0
R250
10K0
R252
10K0
SW201
SW-PBA/6PC
CD BOOST
C298
822(M)
R283
825R
C202
220P
R244
10K0
R241
15K0
R240
10K0
VR204D
B50K
R261
10K0
R262
10K0
C264
182(M)
VR204C
B50K
R259
10K0
R260
10K0
C261
182(M)
R243
3K57
VR204B
B50K
R257
10K0
R258
10K0
C260
182(M)
VR204A
B50K
R255
10K0
R256
10K0
C257
182(M)
10
9
8
IC202C
MC33079
R245 3K57
12
13
14
IC202D
MC33079
R239
3K92
C210
153(M)
R278 6M8
9
8
6
IC205A
4066
C209
153(M)
R277 6M8
11
10
12
IC205B
4066
C211
153(M)
R274 6M8
4
3
5
IC205C
4066
C212
153(M)
R273 6M8
1
2
13
IC205D
4066
R276
10K0
R275
100K
SW204
SW-PBA/2P
D205 6V8 1/2W
D206 6V8 1/2W
R281
560R
R282 560R
14
7
IC205E
4066
+15V
-15V
RANGE
X1
X10
S-HL2
S-HG2
4
11
IC202E
MC33079
4
11
IC201E
MC33079
C203
104P
C206
104P
4
11
IC203E
MC33079
4
11
IC204E
MC33079
C243
100/25V
C244
100/25V
C238
470/25V
C237
470/25V
C208
104P(C)
C207
104P(C)
XOVER FREQ 80Hz + 920Hz
STEREO/MONO
2
1
3
22
11
33
X7
R288
10K
C267
47/25V
C266
47/25V
R242 2K49
SW203
SW-PBA/2P
VR203
10KB
R230
4K99
R231
27K4
3
2
1
IC203A
MC33079
5
6
7
IC203B
MC33079
R228
100K
R227
7K50
R226 10K0
R272
2K67
R229
10K0
R279
1K50
D207
LED
HIGH CLIP
-15V
LED-HG2
+15V
10
9
8
IC203C
MC33079
R295
10K0
R263
10K0
R264
10K0
R210
150R
C228
220P
C227
182(M)
C230
100/25V
R211
100K
12
13
14
IC203D
MC33079
R296
10K0
R266
10K0
R265
10K0
R213
150R
C235
220P
C234
182(M)
C232
100/25V
R212
100K
2
1
3
X11
HIGH
HIGH PHASE
1
3
4
5
6
2
SW206
SW-PBA/2P
2
1
3
22
11
33
X12
S-HG2
SW202
SW-PBA/2P
VR202
10KB
R225
4K99
R224
27K4
3
2
1
IC204A
MC33079
5
6
7
IC204B
MC33079
R222
100K
R220
7K50
R221 10K0
R271
2K67
R223
10K0
R268
1K50
D2061
LED
HIGH CLIP
-15V
LED-HL2
+15V
10
9
8
IC204C
MC33079
R254
10K0
R290
10K0
R291
10K0
R206
150R
C218
220P
C217
182(M)
C220
100/25V
R207
100K
12
13
14
IC204D
MC33079
R289
10K0
R293
10K0
R292
10K0
R209
150R
C225
220P
C224
182(M)
C222
100/25V
R208
100K
2
1
3
X9
LOW
2
1
3
22
11
33
X10
S-HL2
R253
10K0
R294
10K0
R284
10K0
C231
220P
R285
10K0
R286
10K0
C233
220P
R287
10K0
C213
104P
C214
104P
C263
100/25V
C265
100/25V
3. Schematic Diagram
