ViewSonic N2230w-2M Service Manual page 70

8.10. Audio Amp. Interface
Audio Pre-Amplifier
Close to MST.IC
R604
AU_DACO_R 100R DAC-R_RC
C608 R605
1nF 22K
R608
AU_DACO_L 100R DAC-L_RC
C615 R611
1nF 22K
R616
MUTE_S/GPIO1 10K MUTE_S-BJT
1
ViewSonic Corporation
R602 NC
R603 NC
C611 1u 0603 R606 10K R607 33K
C613 1u 0603 R609 10K R610 33K
8 6
IN1 VDD
C617
220n/50V 0603 1
BYPASS
AUOUTL0B
7
VO1
VCC5V-ST 4
IN2
AUOUTR0B
5
VO2
3
VCC5V-ST 2,6 STANDBY
R614 1K / NC
9 2
9 GND
R615
I601
Q602 0 TPA6110A2
MMBT3904
C625
R620 100nF
47K
67
N2230w-2M
Confidential - Do Not Copy
C605
C604 + +
47u/16V 10u/16V
5VAM2 5VAMP
L602
5VAMP
5VAMP 2,12
C612 1u 0603
600R/1.5A 0805
C614
+
C616 1u 0603
22u/16V R612 R613
25
GND
4k7 4k7 I602
Thermal Pad
AD5265A
C618 47u/16V
C619 1u 0603
C620 47u/16V 5VAMP C621 1u 0603
5VAMP 2,12
R617 R618 R619
NC 47K 47K
MODE
G1
G0
R621 R622 R623
0 NC NC
12V
L609 15uH
LB
5VAMP L610 NC
R647
C602
10/NC
100nF 0.1uF/NC
C603
C655
5VAMP
C658
100u/16V 100nF
C606 1nF/NC
C607
0.1uF/NC
C659
1u 0603 10u/16V C656
C610
C609 1nF/NC
100nF R648
10/NC
L607 15uH
LA
L608 NC
L603 15uF
RA
L604 NC
R641
10/NC
0.1uF/NC
C644
C622 C641
100nF
C623 1nF/NC
0.1uF/NC
100nF C642
C624 C645
1nF/NC
1u 0603
R642
C626
10/NC
L605 15uH
100u/16V RB
L606 NC
5VAMP
5VAMP SD HI ==>>SING A SONG
SD LOW==>> SHUT DOWN
R624
HIGH-->STAND BY ENABLE
4k7
LOW-->STAND BY
DISABLE
Q603
R625
MMBT3904
1 AUDIO_DOWN-N POWER-ON/OFF-PWM2
NC
R319
10K
12V
12V 2
DTV-VDD33
DTV-VDD33 3
C666
+
4.7K R634
10u/16V
R635
Q606
1K MMBT3906
1
10K R633
AU_DACO_R
AU_DACO_R 6
AU_DACO_L
AU_DACO_L 6
MUTE_S/GPIO1
MUTE_S/GPIO1 6
PHONE_DET
PHONE_DET 12
PHONE_R
PHONE_R 12
PHONE_L
PHONE_L 12
C654
0.1uF/NC
C652
R645 10nF
10/NC
C649
R646
10/NC
C653
C657
10nF
0.1uF/NC
P602
4
L-
3
L+
2
R-
1
R+
CON4 P=2.5mm
C643 C650
0.1uF/NC 10nF
R643
C648
10/NC
R644
C651
10/NC
10nF
C646
0.1uF/NC
POWER-ON/OFF-PWM2 6
SHUT_DOWN_AU SHUT_DOWN_AU 6