ViewSonic VX2000 Service Manual - Page 59

M04-3005f1 Rev.a, Audio, Vx2000

Page 59 highlights

5 4 3 +5V R265 U3 5 DSDA 11 SDA DGND 10 C29 4 + + DSCL LOUT R266 C29 5 12 SCL 13 OUT L OUT R 9 TREBLE R 8 + C34 6 C34 3 C29 7 14 TREBLE L BASS R 7 C29 8 R226 D R227 JR7 R225 2 LIN\ 10 11 L 3 1 RIN\ R C29 9 C300 C301 C302 15 BASS L 16 BASS L 17 PSEUDO 2 18 IN1 L 19 PSEUDO 1 BASS R 6 AGND 5 VCC 4 IN2 R 3 VCAP 2 R228 R230 C304 20 IN1 R IN2 L 1 C30 3 C34 7 R229 C34 5 C MK B R223 ROUT R307 LOUT R308 R224 AMP_12V R160 2 C34 0 Q4 1 C341 3 C30 9 + C306 U36 1 IN 1 C378 C313 1 + C311 2 3 Vref 9 IN 2 C379 2 SGND ST-BY 8 VCC 7 5 AMP_12V 1 C307 + C308 2 PGND OUT 1 4 OUT 2 6 1 + 2R C310 1 + 2L C312 R303 RR R309 LL SPR SPL RR LL 2 C296 ROUT D20 AMP_12V C36 3 C305 C36 4 C36 2 TVR TVL JR8 2 10 11 3 1 5 4 RR 6 8 7 LL 9 1 +18_ 12V CON7 1 2 3 4 D JR6 2 10 11 3 1 R222 R221 EARL C EA RR SPR EARR SPL EARL B A AM +18_12V C38 5 R264 JMP1 Audio L15 U48 1 2 3 4 NC S S G D D D D 8 7 6 5 C39 0 C32 2 AP U37 3 Vin C314 C315 1 ADJ JMP2 AMP_12V Vout 2 C316 + R16 3 C317 C38 6 1 Q5 C38 7 2 3 C38 8 C38 9 R16 4 5 4 ViewSonic Corporation 3 10-1-10 Confidential - Do Not Copy 2 VX2000 ViewSonic Corporation Title VX2000 Size Document Number B AUDIO Date: Sheet 1 A Rev B 10 of 11 M04-3005F1 REV.A

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5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
M04-3005F1 REV.A
AUDIO
B
VX2000
B
10
11
Title
Size
Document Number
Rev
Date:
Sheet
of
R
L
R
RIN\
LIN\
L
TVL
TVR
AP
ROUT
LOUT
MK
LOUT
ROUT
SPL
LL
EARR
SPR
RR
EARL
EARR
EARL
RR
LL
DSDA
DSCL
RR
SPR
SPL
LL
AM
AMP_12V
AMP_12V
+18_12V
+5V
AMP_12V
AMP_12V
+18_12V
Audio
+
C294
C314
+
C295
+
C316
JR8
2
10
11
3
1
4
5
6
7
8
9
R265
U37
3
2
1
Vin
Vout
ADJ
L15
R266
C297
C322
C299
C300
Q4
1
2
3
C301
C302
C347
C345
C388
C304
C379
C387
R229
C386
R228
C296
R230
R221
Q5
1
2
3
R222
C389
C390
U36
1
3
9
2
5
6
4
7
8
IN 1
Vref
IN 2
SGND
PGND
OUT 2
OUT 1
VCC
ST-BY
C298
JR7
2
10
11
3
1
R16 3
C385
R16 4
+
C310
1
2
+
C303
U48
1
2
3
4
8
6
5
7
NC
S
S
G
D
D
D
D
R264
C313
C346
C309
U35
11
12
13
14
15
16
17
18
19
20
10
9
8
7
6
5
4
3
2
1
SDA
SCL
OUT
L
TREBLE L
BASS L
BASS L
PSEUDO 2
IN1 L
PSEUDO 1
IN1 R
DGND
OUT R
TREBLE R
BASS R
BASS R
AGND
VCC
IN2 R
VCAP
IN2 L
R224
C317
C340
R307
C341
C343
+
C311
1
2
R223
R226
JMP1
R227
C307
R303
R225
R309
R308
+
C308
1
2
D20
+
C312
1
2
C362
CON7
1
2
3
4
C363
C364
R160
JMP2
JR6
2
10
11
3
1
C378
+
C306
C305
C315
ViewSonic Corporation
ViewSonic Corporation
Confidential – Do Not Copy
VX2000
10-1-10