ViewSonic N3250w-1L Service Manual page 72

8.14. Audio RCA Output
AL
AL 3
AR
AR 3
VIDEO_OUT
VIDEO_OUT 3
GNDA
GNDA 3,5,8,19
12V
12V 3,5,8,19
C688 22U/50V
AUDIO_OUT2_L R429 100
C691 22U/50V
AUDIO_OUT2_R R430 100
GNDA
ViewSonic Corporation
OPA1V120 OP1VREF
12V ADD
R406 47K
L211 R121/0805
R524
C669 C665
+ +
47K
220U/16V
10U/50V
P108
L187 R121/0603 AU2AVL
6
C689 C690
1000P 1000P
L188 R121/0603 AU2AVR
5
C692 C693
1000P 1000P
AUDIO OUT RL
共
RCA JACK 1*2
69
N3250w-1L
Confidential - Do Not Copy
TO ERAPHONE OUTPUT
MTK modify
R415
BYPASS AUDIO OUTPUT
R419 0 C679 10U/50V R420 10K R421
AR
C681
820P
MTK modify
R424
R426 0 C686 10U/50V R427 10K R428
AL
C687
820P
L199
C746 C747 NC(R121/0603)
NC NC
3
Q125 R496
NC NC(10K)
C748
R525
2
NC(100U/16V)
NC
4
R497
R499
NC(10K)
D141 (NC)1K
(NC)5.6V
layo ut
20K
C678
150P
5.1K I139A
2
AUDIO_OUT2_R
1
OP1VREF
3
NJM4558 OPA
OP1VREF OPA1V120
20K
C685
150P
5.1K I139B
6
AUDIO_OUT2_L
7
OP1VREF
5
NJM4558 OPA
OP1VREF
OPA1V120
VCC
拉到
TP02
VIDEO_OUT
R498
NC(220)