19" LCD Color Monitor Emachine E19T5W
19
D701
LL4148
VCC1.8
R31
+12V
U702
AIC1084-33PM
3
1
2
VI
GND
VO
X
C709
0.1uF
+5V3,4
C701
NC/0.1uF
Q706 3904->3906 for pluse
C708
NC
Adj_BACKLIGHT 4
MMBT3904
FTD8
FD Mark
0V ~ 3.3V
on_BACKLIGHT 4
+5VA3,4
FTD7
FD Mark
47
4.7K
R725 4.7K 1/10W
R708
1K 1/10W
R710 NC
C715
0.1uF/NC
R714
10K 1/10W
+5VA
R727
10K 1/10W
1K
GND
R716
NC
07/21
R31
R721
0 1/10W
C704
NC/0.1uF
VCTRL 4
BL_ADJ
on_Panel4
4K7
BL_ON
C718
0.1uF
R723 51K 1/10W
TO-263
+5V
Q707
PMBS3904
VCC3.3
VCC3.3
+5V
SOT-223
+
C710
100uF/25V
Q4
POWER
+5V
R705 0 1/10W
+
C712
100uF/16V
R711
30K 1/10W
+5V
Q706
PMBS3904
H1
TP
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1UF
GND
D702
LL4148
H2
TP
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
0V ~ 5V
GND
C713
0.1uF
1UF
R717
10K 1/10W
+3V3
C711
NC
+5V
+
C703
NC/100uF/ 16V
R704
100 1/10W
R715
NC
1uF
D704(SSM12L) Vf=0.38V and If=1A.
So when system power on, the
system loading is about 400mA
(3.3V is about 200mA and 1.8V is
about 200mA), So D35 changed
from 1N4148(or BAT42) to
SSM12L(schottky diode).
BL_ADJ(DC)
BL_ADJ
+
C719
47uF/16V
+
C717
10uF/16V
G2188-1-X-X-2-061215
+3V3
+5V
C706
NC
4.7K
R703
2K 1/10W
VCC3.3 4
C51
P W M
D704
SR24
R712 4.7K 1/10W
R29
C32
X
+
C702
4.7uF/16V
VLCD 5
GND
Q701
NC
32
1
+12V
U701
NC/LT1117-18
3 2
1
4
VI VO
GND
VO
P.S: The 1N4148 Vf=0.7V~1V can't meet
LDO spec. The BAT42, Vf is OK but the
If=200mA(forward current) can not
meet current spec.
+3V3
R702
51 1/10W
R32
Q702
PZT2907A
R701
1K 1/10W
R728
10K 1/10W
1
B
36Friday , December 15, 2006
Tit le
Size Document Number Rev
Date: Sheet
of
GND
R729
10K 1/10W
Q703
PMBS3904
C707
NC
R33
add c705 for inrush current
CN701
CONN
2
4
6
8
10
12
1
3
5
7
9
11
C705
1uF/16V
C714
0.1uF
+5V
R722
NC
+5V
FTD9
FD Mark
H3
TP
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
+3V3
R706 0 1/10W
0
VCC1.8 4
D C
VCC3.3 4
GND
R707 NC
4.7K
+5V3,4
X
+5V
+5V
+12V
X
D703(BAT54) Vf=0.53V (worst cauae) when
If=100mA. So when system power off, the
system loading is about 32mA, it is
safe.
VLCD
N.C
+5V
Q704
AO3401
+5VA
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