Haier 42EP25BAT - ANNEXE 685, Service

Page: 45 / 46

C541
Title
TDA008A
Schematict Name
Power
Rev
A
Size B Sheet 4 of 4 Date: Tuesday, February 28, 2006
3 7
3 7 3 7
-
12V
R3
FB9 U1 LM7805
1 3
5V_T
R945
1M
15R/2W 150_Ohm_2A
+ C1
C2
100uF
VIN VOUT
C3 + C4
32VT
12OK
39K
R944
5.1K
U65
SC4502H
0.1uF 0.1uF 220uF
D7
SS340
C5
2 3 R10 0
FB SHDN
6 8
SW IN
5V_T
R12
33K
C540
NC
4.7uF/50V 0.1uF
5V_T
7
L1
SW
10
10uH
SS
9
ROSC
R11
22k
C542
2.2uF
C543
C544
47nF
1500pF
5V_T
150_Ohm_600mA U3 AP1117E33
3 2
3.3V
R12=22K C543=2200pF WHEN USEING SC4501
FB1
+
C7 C8
IN OUT
C9 + C10
12V 8V
SMD_0805 22uF 0.1uF 0.1uF 22uF U11 78M08A
1 3
C102
0.
+ C103
100uF
VIN VOUT
C104
0.1uF
+ C105
100uF
5V_T
150_Ohm_600mA U4 AP1117E25
3 2
2.5V
H2
H1 H3 H6
FB4
+ C13
IN
C14
OUT
C15 + C16
1 9
2
1 9
8
3
2
HOLE
8
7
1 9
2
1 9
8
3
2
HOLE
8
7
4 6
1 9
2
1 9
8
3
2
HOLE
8
7
1 9
2
1 9
8
3
2
HOLE
8
7
SMD_0805 22uF 0.1uF 0.1uF 100uF 4
3 7
6 5
4 6
4
3 7
6 4
3 7
6
5
4 6 5
5
5
4 6
5
5
4 6
5
H4 H5 P_GND P_GND
1 9
2
1 9
8
3
2
HOLE
8
7
4 6
1 9
2
1 9
8
3
2
HOLE
8
7
4 6
3.3V
FB5
2 1
U5 AP1122
3 2
1.2V
5
4 6
5
5
4 6
5
150_Ohm_600mA
+ C18
IN
C19
OUT
C20 + C21
SMD_0805 22uF 0.1uF 0.1uF 100uF
IF Vamp>16.5V pls Assemble R28 to drop 2V.
otherwise assemble R39
This is 18V input form AC/DC power board
+18V
CON7
4
3
2
1
MIC (4pin/2.0mm)
P_GND
F2
FUSE/4A
R28 3.9R/2W
DS0.8
R39
0_DNS
SMD_1210
C145 C144
0.01uF0.1uF
P_GND P_GND
R38 0_DNS
SMD_0805
P_GND