Acer AL1716 Manuel d'entretien - Page 45

Parcourez en ligne ou téléchargez le pdf Manuel d'entretien pour {nom_de_la_catégorie} Acer AL1716. Acer AL1716 47 pages. 43.2cm(17”) tft color lcd monitor
Également pour Acer AL1716 : Manuel de l'utilisateur (17 pages), Manuel de l'utilisateur (10 pages), Manuel d'entretien (50 pages), Manuel d'entretien (50 pages), Spécifications (2 pages), Manuel d'entretien (40 pages), Manuel de démarrage rapide (1 pages), Manuel de l'utilisateur (11 pages), Manuel de l'utilisateur (20 pages), Manuel de démarrage rapide (1 pages)

Acer AL1716 Manuel d'entretien

Main Board Power Supply

SOT-223
U701
+5V
NC/LT1117-18
3
2
VI
VO
4
VO
C701
NC
BL_ADJ(DC)
R31
0V ~ 3.3V
4.7K
0V ~ 5V
4.7K
BL_ADJ
R31
C32
P W M
47
N.C
D C
4K7
1uF
+12V
+12V
4
CN701
C706
C707
GND
+
1
2
GND
0.1uF
3
4
100uF/25V
+12V
5
6
GND
+5V
7
8
+5V
9
10
3,4
+5V
GND
11
12
C710
CONN
C709
+
VCC5V
0.1uF
100uF/25V
R706 NC
Q701
Adj_BACKLIGHT
PMBS3904
R707
4.7K
 
1/16W
+3V3
+5V
R714
R716
R717
 
10K
1/16W
 
10K
1/16W
NC
R723 51K
R725
Q706
4
on_Panel
 
4.7K
1/16W
PMBS3904
C718
0.1uF
+3V3
+3V3
C703
C704
+
100uF/25V
NC
C51
R32
R29
R33
Q4
1UF
0
X
X
X
1UF
X
1K
4.7K
MMBT3904
+5V
R708
 
10K
1/16W
BL_ON
R710
NC
BL_ADJ
+12V
GND
C711
 
+5V
R712
4.7K
1/16W
GND
0.1uF
Q703
PMBS3904
D704(SSM12L) Vf=0.38V and If=1A.
R701
So when system power on, the
 
1K
1/16W
system loading is about 400mA
R705 4.7K
 
(3.3V is about 200mA and 1.8V is
1/16W
about 200mA), So D35 changed
from 1N4148(or BAT42) to
C708
SSM12L(schottky diode).
1uF
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.
For RSDS and Panel VCC=12V
+3V3
VLCD
VLCD
5
+5V
+3V3
R715
NC
R721
R722
Q704
 
 
1/16W
AO3401L
0
1/16W
NC
C715
4
on_Panel_12V
0.1uF
+
C717
R727
 
10uF/16V
10K
1/16W
H1
H2
H3
9
5
9
5
9
5
9
5
9
5
9
5
4
4
4
4
4
4
TP
TP
TP
+5V
R711
 
10K
1/16W
on_BACKLIGHT
4
3,4
+5V
+5V
+5V
+12V
VLCD_12V
VLCD_12V
R718
R729
R719
NC/10K
NC/10K
NC/10K
Q705
R724 51K
AO3401L
R726 NC/4K7
C716
Q707
0.1uF
PMBS3904
C720
+
C719
NC/0.1uF
NC/10uF/16V
44
D701
1N4148
B
Q702
D702
CHT2907
1N4148
C705
+
1uF/16V
R704
 
100
1/16W
+5V
PC5V
Recommond to used "Blue" parts circuit
for VCC1.8V if you want to suppoert DDC
3,4
+5V
PC5V
3
function when system power off
R732
R709
 
 
+5V
10
1/16W
0
1/16W
D704
D703
TO-263
SMAL140
BAT54C
U702
3
2
VIN
VOUT
4
VOUT
1
ADJ
C713
AIC1084-33PM
0.1uF
R720
0
12/21 MODIFY
+5V
+12V
5
R730
R731
 
0
1/16W
NC
R728
Title
NC/4K7
Size
Document Number
B
Date:
Monday, May 09, 2005
VCTRL
4
R702
51
 
1/16W
VCC1.8
C702
+
VCC1.8
4
4.7uF/16V
R703
 
2K
1/16W
VCC3.3
VCC3.3
4
VCC3.3
VCC3.3
4
R713
C712
C714
+
NC
100uF/25V
0.1uF
 
1/16W
TSUM16AK
Rev
A
POWER
Sheet
1
of
5