Schematic Diagram - Alto x23 Service Manual

3. Schematic Diagram

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