Haier HL22KN1 Service Manual page 30

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