Dell E178FPC Service Manual page 36

17" LCD Color Monitor
GND 1
GND 3
5
+5V GND 7
+5V 9
3,4 +5V
11
+ C710
100uF/16V
C709
0.1uF 16V
BL_ADJ(DC) R705 C708 R706
0V ~ 3.3V 4.7K 1UF 0
0V ~ 5V 4.7K 1UF X
BL_ADJ R705 C708
P W M 47 N.C
D C 4K7 1uF
+5V
R717
10KΩ 1/10W
R725
4 on_Panel
CN701
2 BL_ON
4 BL_ADJ
6 +5V
8 GND
10 +5V
12 GND R708
10KΩ 1/10W
CONN R710
C711
NC
Q703 R712
PMBS3904 4.7KΩ 1/10W
R701 R707 Q701
X X X
1K 4.7K MMBT3904
+5V
+5V VLCD
VLCD 5
R714
10KΩ 1/10W
R723 Q704
51 KOHM +-5% 1/10W AO3401
4.7KΩ 1/10W
Q706 C715
PMBS3904 0.1uF 16V
C718
0.1uF 16V C717 R727
+
10uF/16V
10KΩ 1/10W
+5V
R701
4.7KΩ 1/10W 1KΩ 1/10W
R705 R706 NC
C708
0.1uF 16V
R707
Q701
PMBS3904 4.7KΩ 1/10W
+5V
NC
R711
10KΩ 1/10W
on_BACKLIGHT 4
+5V
VCC3.3
3,4 +5V
R721 R722 D704
0Ω 1/10W NC SR24
H2 H3 H1
9 5 9 5 9
9 5 9 5 9
4 4
4 4
TP TP
FTD7 FTD8 FTD9
FD Mark FD Mark FD Mark
36
Adj_BACKLIGHT 4
D701
LL4148
B
Q702
PZT2907AT1G SOT-223
D702
LL4148
C705
NC 1uF/16V R704
100Ω 1/10W
+5V PC5V
PC5V 3
R709 D703(BAT54) Vf=0.53V (worst cauae) when
If=100mA. So when system power off, the
NC
system loading is about 32mA, it is
safe.
D703 TO-263
NC/BAT54C-GS08
U701 AIC1117-33PY
3 2
VIN VOUT
4
VOUT
+ C712
C713 10uF/16v
0.1uF 16V
12/21 MODIFY
5
5
4
4
TP
Title
AOC TSUM16AL
Size Document Number
Custom
G1565-1G-2-DEL-2-070313
Date: Tuesday , March 13, 2007
Dell E178FPC
VCTRL 4
R702
51Ω 1/10W
VCC1.8
+ C702
4.7uF M 16V
VCC1.8 4
R703
2KΩ 1/10W
VCC3.3
VCC3.3 3,4
VCC3.3
VCC3.3 3,4
C714
0.1uF 16V
Rev
G
Sheet 2 of 5