AOC LM926, Руководство по обслуживанию, Страница: 20 / 57

1
9
"
L
C
D
C
o
lo
r
M
o
n
it
o
r
AOC
LM926
2
0
TS
U
M
56A
K
R7
1
6
NC
R
7
20
0
1/
16W
ǂ
R7
0
4
10
0
1/
16
W
ǂ
R3
2
1U
F
P.S:
The 1N4148
Vf=0.7V~1V
can't mee
t
LDO s
pec. The B
AT42, Vf is
OK but th
e
If=20
0mA(forwar
d current)
can not
meet current
sp
ec.
VL
C
D
5
For RSDS a
nd Panel V
CC=12V
C7
0
4
NC
Q7
0
1
PM
B
S
3
9
04
VL
C
D
_
1
2V
5
+3
V
3
+3
V
3
Ad
j_
B
A
C
K
LI
G
H
T
4
+5
V
3,
4
PC
5V
3
PC
5
V
BL_
ADJ
(DC
)
C3
2
C7
1
8
0.
1uF
+5
V
X
+5
V
R7
1
5
NC
TO-
26
3
+3
V
3
+
C7
0
7
100
uF
/2
5
V
C7
1
5
0.
1u
F
GN
D
+5
V
H1
TP
1
2
3
4 5
6
7
8
9
1
2
3
4 5
6
7
8
9
R7
2
5
4.
7K
1/
16W
ǂ
+1
2
V
Q7
0
5
AO
34
01L
1K
+3
V
3
R7
2
6
NC
/4
K
7
C7
0
8
1u
F
+
C7
1
0
10
0uF
/25V
PO
W
E
R
A
B
15
M
ond
ay
, M
a
y
09,
200
5
Ti
tl
e
S
iz
e
Do
cu
me
n
t Nu
mb
e
r
Re
v
D
a
te
:
S
h
eet
of
+1
2
V
R7
3
2
10
1
/1
6
W
ǂ
R31
R7
0
5
4
.7
K
1/
16
W
ǂ
+3
V
3
VC
C
1
.8
4
X
+5
V
CN7
0
1
CO
NN
2 4 6 8 10 12
1 3 5 7 9
11
0
C7
1
4
0.
1
u
F
+1
2
V
+5
V
VL
C
D
+5
V
H3
TP
1
2
3
4 5
6
7
8
9
1
2
3
4 5
6
7
8
9
R7
2
2
NC
1u
F
Q7
0
7
PM
BS3
9
04
on
_
B
A
C
KL
IG
H
T
4
P W
M
D7
0
2
1N
4
1
48
MMB
T39
04
VC
T
R
L
4
4.
7K
R7
2
9
NC/
1
0
K
+5
V
3,
4
+5
V
C5
1
C7
0
9
0.
1uF
GN
D
4K
7
+5
V
C7
2
0
N
C
/0.
1u
F
U7
0
2
AI
C
1
08
4-
33P
M
3 1
2 4
VI
N
AD
J
VO
U
T
VO
U
T
R
721
0 1
/1
6
W
ǂ
VC
C
3
.3
4
R7
0
7
4.
7K
1/
16
W
ǂ
VL
C
D
_
1
2
V
VC
C
1
.8
R7
1
3
NC
+
C
702
4.
7u
F
/16
V
R
7
23
51K
1/
16W
ǂ
+
C
717
10
uF
/1
6V
R7
1
4
1
0
K
1
/16W
ǂ
GN
D
VC
C
3
.3
4
C7
1
3
0.
1u
F
+5
V
GN
D
R7
3
0
0 1
/1
6
W
ǂ
+5
V
R7
1
0
NC
D C
Q7
0
3
PM
B
S
3
9
04
R
ecommond to
used "Blu
e" parts ci
rcuit
f
or VCC1.8V
if you wan
t to suppoe
rt DDC
f
unction whe
n system p
ower off
0V ~
3
.3V
C7
1
6
0.
1uF
R
703
2K
1/
16
W
ǂ
+5
V
R7
0
6
NC
Q7
0
6
PM
B
S
3
904
1U
F
V
CC5
V
C7
0
1
NC
+
C7
0
3
100
u
F
/2
5
V
4.7K
R7
1
7
10K
1/
16
W
ǂ
N.
C
R2
9
R
708
10K
1/
16
W
ǂ
+1
2
V
R7
0
1
1K
1/
16W
ǂ
47
R7
2
8
NC/
4
K
7
+
C7
0
5
1uF
/16V
D7
0
4
SM
A
L
1
4
0
on_
Pa
nel
_
12
V
4
X
D704(SSM1
2L) Vf=0.3
8V and If=1
A.
So when s
ystem powe
r on, the
system lo
ading is a
bout 400mA
(3.3V is
about 200m
A and 1.8V
is
about 200
mA), So D3
5 changed
from 1N41
48(or BAT4
2) to
SSM12L(sc
hottky dio
de).
C7
1
1
0.
1u
F
VC
C
3
.3
BL_
ADJ
R
731
NC R
709
0
1/
16
W
ǂ
R7
2
4
5
1
K
+1
2
V
4
+5
V
3,
4
D
701
1N
4
1
48
+1
2
V
SO
T-
223
X
12/21
MODIFY
C7
0
6
0.
1
u
F
on_P
an
el
4
R7
1
9
NC/1
0
K
R
7
12
4.
7K
1
/1
6
W
ǂ
D7
0
3
BA
T
5
4
C
3
1
2
+5
V
+
C7
1
9
NC/
1
0
u
F
/1
6
V
+
C7
1
2
1
00u
F
/25V
R7
2
7
10K
1/
16W
ǂ
BL
_AD
J
R
702
51
1/
16W
ǂ
H2
TP
1
2
3
4 5
6
7
8
9
1
2
3
4 5
6
7
8
9
0V ~
5
V
R3
3
BL
_
O
N
GN
D
G
N
D
R7
1
1
10
K
1/
1
6
W
ǂ
U7
0
1
N
C
/L
T
111
7-
18
3
2
1
4
VI
V
O
GND
VO
Q4
Q7
0
2
CHT
2
9
0
7
C
B
E
+5
V
R7
1
8
NC
/1
0
K
4.7K
R3
1
Q7
0
4
AO
34
0
1
L
VC
C
3
.3