Hanns.G AG172D, Руководство по обслуживанию

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17" LCD Color Monitor Hanns.G AG172D
21
VLCD
Q701
PMBS3904
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).
GND
H1
TP
1 2 3
4
5
6 7 8
9
1 2 34
56
7 8
9
C716
NC
X
P W M
R737 NC/4K7
+
C717
22uF/50V
+5V
C708
1uF
H2
TP
1 2 3
4
5
6 7 8
9
1 2 34
56
7 8
9
+3V3
U702
AIC1084-33PM
3
1
2
VIN
ADJ
VOUT
GND
R705 4.7K 1/16W
C701
NC
+12V
4
4.7K X
del
+5V
R702
51 1/16W
47
C722
NC
+
C707
100uF/25V
Q705
NC 1
3
2
C711
0.1uF
Q704
AO3401L
1K
R716
NC
4K7
del
+12V
+5V
+ C703
NC
+3V3
R733
NC
+12V
+5V 3,4
R32
R722
NC
C51
on_BACKLIGHT 4
Q707
NC
C724
NC
R703
2K 1/16W
L701
120 OHM
1 2
D C
C706
0.1uF
R736
NC
L702
120 OHM
1 2
VCC1.8 4
on_PANEL
4
1UF 0
R710 NC
4.7K
R721
0 1/16W
+5V
R717
10K 1/16W
A
Power
Custom
3 5 Friday , July 21, 2006
Title
Size Document Number Rev
Date: Sheet of
For RSDS and Panel VCC=12V
GND
VLCD 5
+5V
VCC3.3
CN701
CONN
2
4
6
8
10
12
1
3
5
7
9
11
Q702
PZT2907A
Q4 BL_ADJ(DC)
0V ~ 3.3V
+5V
R739
1K 1/10W
1uF
Q708
PMBS3904
+5V
R712 4.7K 1/16W
R31
+12V
10/20/2005 : For Panel Protection. Add Q708, Q709, R733~R737, C721~C722
GND
C715
0.022uF
GND GND
C713
0.1uF
Q706
PMBS3906
+
C719
NC
Q709
PMBS3904
+ C702
22uF/50V
R729
NC
+5V 3,4
R29
R730
NC
4.7K
2006/05/26 Change componet 93G1004-4
BY D701-702
VLCD_12V
VCC3.3
R727
NC
C714
0.1uF
R708
10K 1/16W
D701
SMAL140
SOT-223
C727
0.1uF
0V ~ 5V
For LVDS PANEL
+
C710
100uF/25V
BL_ON
U701
NC/LT1117-18
3 2
1
4
VI VO
GN
D VO
R724 51K
+
C704
22uF/50V
on_PANEL_12V
4
N.C
R728
NC
C721
0.1uF
R706 NC
+3V3
BL_ADJ
+12V
VCTRL 4
TO-263
R704
100 1/16W
Q703
PMBS3904
Recommond to used "Blue" parts circuit
for VCC1.8V if you want to suppoert DDC
function when system power off
+5V
BL_ADJ
R711
10K 1/16W
D702
SMAL140
R735
4.7K 1/16W
VCC1.8
+5V
R719
NC
VCC3.3 4
X
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.
R33
R731
NC
+
C712
100uF/25V
VLCD_12V 5
+5V
+3V3
D704
SMAL140
R720
NC
VCC3.3 4
R723 51K 1/16W
MMBT3904
R701
1K 1/16W
X
R734
10K 1/16W
R31 C32
+5V
H3
TP
1 2 3
4
5
6 7 8
9
1 2 34
56
7 8
9
R707
4.7K 1/16W
+
C723
22uF/50V
1UF
R740
NC
adj_BACKLIGHT
4
C709
0.1uF