Acer V193W - bm - 19" LCD Monitor Service Manual page 44

CMVCC
5, 6 CMVCC
CN404
1 SM340A
2 D402
3 CMVCC
4 CMVCC
5 BKLT-VBRI R450 NC
6 BKLT-EN NC(R0402)
7 C_PANEL_INDEX
8 Volume
9 Mute
CONN
VCC3.3
R441
1K 1/16W 5%
R442
BKLT-VBRI
adj_BACKLIGHT
100R 1/16W 5%
2008/01/14
BAT99 : If 0.05A,VF=1.0V
BAV70 : If 0.05A,VF=1.0V
It's need to use Low Dropout Regulator.
ESD_VCC 2
DSUB_5V
DSUB_5V 2
R458
D401
NC
BAV99
CMVCC1
CMVCC1 5
R449
NC
PANEL_ID# 5
Mute 5
VCC3.3
R446
NC
Volume
Q408
2N3904S-RTK/PS
5
VCC3.3 VCC3.3
R437 R439
10K 1/16W 5% 10K 1/16W 5%
BKLT-EN
Q406
2N3904S-RTK/PS
C425
on_BACKLIGHT
NC
R440
4K7 1/16W 5%
VCC3.3
R447
10K 1/16W 5%
Volume# 5
R448
4K7 1/16W 5%
44
Due to LG doen't request PC'99 Function.
D401
LG NC 0Ohm 1/16W
OTHER BAV99
VCC3.3
Q410
KN2907AS
Q409
KN2907AS
5
5 VCTRL
CMVCC1 MVCC
FB403 NC
3
VIN
2
VOUT
1
ADJ(GND)
C426 C428
+
100uF25V 0.1uF/16V U404
AP1117D33LA
U404 can use package 232 or 252.
R458
NC
VCC1.8
VCC1.8 5
C432 C423
+
0.1uF/16V 100uF25V
VCC3.3
VCC3.3 4, 5
C422 C427
+
0.1uF/16V 100uF25V