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5
D
C
B
A
5
4
Mute :
Low = output enabled
High = output high-Z
VREG(4V)
R263
10K
R264
1K
7
AMP_PD
Shutdown :
Low = disabled
=> Speaker Off
1 5 V_AUD
High = operational => Speaker On
C349
C348
0.1U K
+
220U 25V
<Spec>
1
NC
C355 0.47U Z
2
11
AUDIO _ R_OUT
RINN
C357 0.47U Z
3
RINP
4
AGND
C358 0.47U Z
5
LINP
C359 0.47U Z
6
11
AUDIO _L_OUT
LINN
7
NC
8
G AIN0
GAIN0
9
G AIN1
GAIN1
VREG(4V)
10
MSTR/SLV#
11
SYNC
VREG(4V)
12
NC
Gain modify
R273
R274
100K
0
GAIN=26 dB
G AIN0
G AIN1
100K
R277
R276
100K
0
L80
Z120
L81
Z120
L82
Z120
1 KHz Sine Wave
Audio Output / Speaker : 8 ohm/15W
Gain 1
Gain 0
Amplifier Gain
Audio Input ; Vrms
0
0
20
1.06 Vrms
0
1
26
0.524 Vrms
1
0
32
0.266 Vrms
1
1
36
0.173 Vrms
4
3
VREG(4V)
R258
10K
PHO NE_DET 1,7
VREG(4V)
D N6
BAV70LT1G
A1
A2
R259
10K
R260
NM_0
Q23
B
R261
4.7K
AMP_MUTE 7
2N3904S
R262
100
3A
L68
33U K
L69
C342
0.1U K
C344
0.47U Z
C346
C345
0.1U K
N C
3A
L70
33U K
L71
C351
C352
0.22U K
0.22U K
1 5 V_AUD
C354
220U 25V
36
1
2
NC
C356 0.1U K
35
PVCCR
34
PVCCR
33
PGNDR
32
U25
PGNDR
31
C360 1U K
VCLAMPR
C367 1U K
30
VCLAMPL
T PA3100D2RGZR
29
PGNDL
28
PGNDL
C364
220U 25V
27
1
2
PVCCL
26
C366 0.1U K
PVCCL
25
NC
1 5 V_AUD
C368
C369
C371
R275
0 .2 2U K
0.22U K
470P K
L75
33U K
3A
L76
Z120
C377
C378
0.1U K
220P J
C380
0 .4 7 U Z
C382
C383
0.1U K
220P J
L78
33U K
L79
Z120
3A
C385
L83
Z120
470P K
Audio Input : Vp-p
3 Vp-p
1.482 Vp-p
0.753 Vp-p
0.489 Vp-p
3
2
AMP_MUTE
SPEAKER
H
ON
L
OFF
C341
470P K
TP178
Z120
J14
C343
1
220P J
1
2
2
3
3
C347
2K61196103
220P J
TO R Speaker
Z120
TP179
C350
470P K
+15V
D9
L72
3A
K
A
Z120
<Spec>
SS24-LF
<Spec>
TP180
J15
1
1
2
2
2K61196102
TO L Speaker
TP181
BenQ Corporation
Pr oject Code
9J.M7375.001
Title
Size
PCB P/N
<Size>
4H.M7301.S13
T u e sday, April 04, 2006
Date:
Pr epared By
ANG EL HU
2
1
D
C
B
A
Mo d el Name
O EM/O DM Model Name
V37C
<OEM/ODM>
MAIN BO ARD
PCB Re v.
Do cu me nt Number
Re v.
2
S13
9J.M7375.BAE-C3-304-001
Sheet
13
o f
14
Re vie wed By
Ap p r oved By
HO L IO N LEE
DO MING O HUANG
1
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