Haier HL22KN1, Руководство по обслуживанию

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5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
PANEL-ON/OFF
POWER-ON/OFF
BL-ON/OFF
BL-ADJUST
BL-ON/OFF
BL-ADJUST
BRI_ADJ
BRI_ON/OFF
+5V_DVD
+12VA
DVD_STB
1482_ON/OFF
VCC-Panel
5VSTB
+12VU
VCC1.2V
5VSTB 5VSTB
+3.3V_MST
+12VU
+12VA
5VSTB
+12VU
+12VU
+3.3V_MST
5VSTB
+5V_DVD
+12VA
+12VU
+5V_DVD
+3.3V_MST
PANEL-ON/OFF
BRI_ADJ
BRI_ON/OFF
POWER-ON/OFF
DVD_STB
1482_ON/OFF
Title
Size Document Number Rev
Date: Sheet of
<Doc>
<RevCode>
<Title>
A3
2 11 Thursday, November 27, 2008
Title
Size Document Number Rev
Date: Sheet of
<Doc>
<RevCode>
<Title>
A3
2 11 Thursday, November 27, 2008
Title
Size Document Number Rev
Date: Sheet of
<Doc>
<RevCode>
<Title>
A3
2 11 Thursday, November 27, 2008
1.25V
正常功耗为
0.57W
左右
建议先采用
TO-252
封装
MST721DU 150mA
MST721DU 250mA
DVD_POWER
POWER
0N 1
OFF 0
0N 1
OFF 0
0N 0
OFF 1
C22
0.1uF
C22
0.1uF
R1 100K R1 100K
+
CA1
470uF/16V
+
CA1
470uF/16V
1
2
3
Q2
2N3904
Q2
2N3904
R9
4.7K
R9
4.7K
C9
0.1uF
C9
0.1uF
L1 NC/FB L1 NC/FB
+
CA13
47uF/16V
+
CA13
47uF/16V
C18
0.1uF
C18
0.1uF
C19
2.2uF
C19
2.2uF
R2
12K
R2
12K
C13
0.1uF
C13
0.1uF
L4 FB L4 FB
R4
2.7K
R4
2.7K
+
CA12
47uF/16V
+
CA12
47uF/16V
R14
100K
R14
100K
L7 FB L7 FB
3 2 1
4
ADJ OUT
IN
U5
AMS1117-1.2
ADJ OUT
IN
U5
AMS1117-1.2
1 3
L5
10uH/4A
L5
10uH/4A
1
2
3
Q5
2N3904
Q5
2N3904
+
CA9
10uF/16V
+
CA9
10uF/16V
+
CA3
10uF/16V
+
CA3
10uF/16V
R5
10K
R5
10K
+
CA2
470uF/16V
+
CA2
470uF/16V
EN
7
FB
5
VCC
2
OUT
3
BST
1
GND
4
SS
8
COMP
6
U1
MP1482
U1
MP1482
R12
2.2K
R12
2.2K
+
CA4
220uF/16V
+
CA4
220uF/16V
1 3
L2
10uH/4A
L2
10uH/4A
R6
100K
R6
100K
C15
0.1uF
C15
0.1uF
R7
4.7K
R7
4.7K
3 2 1
4
OUT ADJ
IN
U4
AMS1084-3.3
OUT ADJ
IN
U4
AMS1084-3.3
D2
NC/IN4148
D2
NC/IN4148
+
CA11
47uF/16V
+
CA11
47uF/16V
+
CA6
470uF/16V
+
CA6
470uF/16V
C11
0.1uF
C11
0.1uF
+
CA8
10uF/16V
+
CA8
10uF/16V
R17
10K
R17
10K
C6
0.1uF
C6
0.1uF
R15
4.7K
R15
4.7K
1
2
3
4
5
CON2
CON5_2.0
CON2
CON5_2.0
C21
0.1uF
C21
0.1uF
R19
1K
R19
1K
S1
1
G1
2
S2
3
G2
4
D1
8
D1
7
D2
6
D2
5
U2
AO4803A
U2
AO4803A
C14
0.1uF
C14
0.1uF
C17
0.1uF
C17
0.1uF
R8 100K R8 100K
1
2
3
Q4
2N3904
Q4
2N3904
R10
12K
R10
12K
C1
10n
C1
10n
C2
0.1uF
C2
0.1uF
EN
7
FB
5
VCC
2
OUT
3
BST
1
GND
4
SS
8
COMP
6
U3
MP1482
U3
MP1482
C12
3.3n
C12
3.3n
C4
0.1uF
C4
0.1uF
+
CA10
47uF/16V
+
CA10
47uF/16V
R13
2.7K
R13
2.7K
R20
4.7K
R20
4.7K
L6 FB L6 FB
D1
NC/IN4148
D1
NC/IN4148
+
CA7
470uF/16V
+
CA7
470uF/16V
R18
1K
R18
1K
C5
0.1uF
C5
0.1uF
R16
4.7K
R16
4.7K
NC
1
GND
2
BRI_ADJ
4
GND
3
BL-ON/OFF
5
12V
6
12V
7
CON1
CON7_2.5
CON1
CON7_2.5
C10
10n
C10
10n
R21
100R
R21
100R
R11
10K
R11
10K
C7
0.1uF
C7
0.1uF
1
2
3
Q1
2N3904
Q1
2N3904
C3
3.9n
C3
3.9n
R3
6.8K
R3
6.8K
C20
0.1uF
C20
0.1uF
1
2
3
Q3
2N3904
Q3
2N3904
L3 NC/FB L3 NC/FB
R22
4.7K
R22
4.7K
C16
0.1uF
C16
0.1uF