TCL LCD20V6AT, Service Manual

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5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
31ohm at 100Mhz Rated Currrent
>=2A
40mA
200mA
CVDD:300mA
AVDD:60mA
040108 chy
GM21-power
C
7 9 Tuesday, October 18, 2005
Title
Size Document Number Rev
Date: Sheet of
POWER
GND
GND
+1.8V_DVDD
+5V
GND
+5V
GND
GND
+3.3V_AVDD
GND
GND
+3.3V_AVDD
GND GND
GND
GND
+12V
GND
+5V +3.3V_DVDD
GND
GND
GND
+5V
GND
+5V_MUX
GND
GND GND
+3.3V_AVDD +3.3V_LBADC
GND
GND
+1.8V_DEC
A_1.8V
D_1.8V
GND
GND
+12V
+12V
GND GND
+9V
GND GND
GND
GND
GND
+5V
C92
0.1u
C79
470uF
/25V
C98
0.1uF
C82
330uF/16V
C99
100uF/16V
10V
U11
KIA278R09
To-223
1
3
2
4
Vin
GND
VOUT
SW
C78
100uF
/16V
C114
100uF/16V
C100
0.1uF
C83
330uF/16V
Q10
BC847c
1
2
3
L13 33R FB
L27
33R FB
D9
IN5820
1
2
D10
1N4148
C106
0.1uF
L23
33R FB
C102
22uF/16V
C105
100uF
/16V
L14 33R FB
C84
0.1uF
C96
0.1uF
U10
lt1084-3.3V
1
3 2
4
GND/ADJ
VIN VOUT
TAB
C101
0.1uF
C97
100uF/16V
10V
U9
LM2596S-5.0
1
3
2
4 5 6
VIN
GN
D
VOUT
AD
J
ON TA
B
R98 2k2
D12 1N4001
C94
100uF/16V
10V
R96
100
C88
0.1u
L12 33R FB
C89
100P
C107
0.1uF
L19 33R FB
C108
22uF/16V
D11 1N4001
L20 33R FB
L25
33R FB
L29 33R FB
U12
LT1117-3.3V
Sot223
1
3 2
4
GND/ADJ
VIN VOUT
TAB
L18 33R FB
L21
33R FB
C77
0.1u
C95
100uF/16V
R97
10k
C110
100uF/16V
L22
33R FB
J11
CONTROL
1
2
C81
0.1uF
L28 33R FB
L24
33R FB
L17 33R FB
L26
33R FB
L16 33R FB
RELA1
Jidian1
1
2
3
4
C87
0.1uF
C104
100uF/16V
C112
0.1uF
C113
0.1uF
C93
0.1uF
C115
100uF
/16V
U13
LT1117-1.8V
Sot223
1
3 2
4
GND/ADJ
VIN VOUT
TAB
C116
0.1uF
C80
0.1uF
L15
33uH
C103
0.1uF
C91
470uF/25V
C86
330uF/16V
C90
0.1u
U14
LT1117-1.8V
Sot223
1
3 2
4
GND/ADJ
VIN VOUT
TAB
C111
100uF
/16V
C85
100uF/16V
JP1
POWER IN
1
2
3
4
C109
0.1uF
24