ViewSonic VX2235wm-3 Service Manual page 45

8.5. Audio Amplifier
GND_PG
DGND
layout modify pin define
P601
L
5
LS
4
RS
3
R
2
S
1
AUDIO INPUT (GREEN)
now pin define
3
1 5
4
2
SOLDER
SIDE
correct pin define
5
1 4
4 MUTE_S
3
2
SOLDER
SIDE
ViewSonic Corporation
from two smt 0805 bead modify dip type and make a drill include of the cap 1500UF
5V_AMP
L607 80R DIP
1 5V_AMP
C601
1500uF/10V
modify value 0627
modify value 0627
C610
AVOR
1UF
R609
C612
C613
47K
1000P
1UF
C615
1UF
C617
AVOL
1UF
C621
R611
47K 1000P
+5V
R612
10K
R613 NC
R614 10K Q602
MUTE_S
B
B
SOT
C
C
E 23
E
R615 MMBT3904
10K
DGND 1,2,3,4
DGND DGND
Confidential - Do Not Copy
42
AMP_VCC
C602
+
100n
DGND DGND
DEL C604 , C623
hunk 06'0706
C605 C606
1UF 0805 1UF 0805
C608
1UF 0805
GND
R610 100K
C620
220P 0603
C625 C626
1UF 0805 1UF 0805
DGND
modify value 0627
VX2235wm-3
1,3,4 3.3DVCC
R603
R604
0
4 VOLUME
AMP_VCC
NC/1K
R616
C603
R608
33R
100K
1uF
+
C627
47uF/16V
L603 15uH
DGND
I601
TPA2008D2
L604 15uH
25
DGND
L605 15uH
0525 modify value
L606 15uH
060728
+5V
3.3DVCC
modify value 0616
R601
R602
NC/10K
10K/NC
Q601
B
NC/MMBT3904 SOT-23
DGND
R607
4.7K
7/28 cap package change to 0603
對 板邊接地
5/20 ADD PCB
C609
C611
10n 0603
0.1u 0805
P=2.0mm
C614
DGND
P602
C616
4
R+
10n 0603
3
R-
0.1u 0805
2
L-
1
C618
L+
DGND
C619
10n 0603
0.1u 0805
C622
DGND
C624
10n 0603
0.1u 0805
DGND
DGND