TCL L32E4200 Service Manual page 21

5
12V TO 5V
+12V
U1 U1 MP1471 MP1471
3
D IN BST
R2 R2
SW
C7 C7 C84 C84 C6 C6 100K 100K
5
EN FB
10uF 10uF NC NC 0.1uF 0.1uF
1.2V For Core Power
C
5VSTB
U6 SY8088AAC U6 SY8088AAC
4
IN
R9 R9 47K 47K
1
EN
C19 C19 C20 C20
10uF 10uF 0.1uF 0.1uF
靠近DC-DC
B
5 9 5 9
4 8 4 8
3 7 3 7
2 6 2 6
H1 H1 H3 H3
Hole/4mm孔径 Hole/4mm孔径 Hole/4mm孔径 Hole/4mm孔径
5 9 5 9
4 8 4 8
3 7 3 7
2 6 2 6
H5 H5 H2 H2
Hole/4.7mm孔径 Hole/4.7mm孔径 Hole/4mm孔径 Hole/4mm孔径
A
5
4
5.24V
5VSTB
L1 L1 10uH/5A 10uH/5A
C1 C1 R1 R1 0R 0R
6 1 2
1UF 1UF R3 R3
2
40.2K+/-1% 40.2K+/-1%
R4 R4 24.9K+/-1% 24.9K+/-1% C11 C11 CE3 CE3
4
+ +
NC NC 470uF/10V 470uF/10V
R5 R5 R6 R6
300K 300K 7.5K+/-1% 7.5K+/-1%
700mA Max
+1V2_VDDC
插件工字/贴片绕线电感
L2 L2 4.7uH/1.5A 4.7uH/1.5A
3 1 2
SW
5
NC
R10 R10
6
R1
FB
15K_1% 15K_1% CE5 CE5 C21 C21
+ +
100uF/16V 100uF/16V 0.1uF 0.1uF
R11 R11
R2
13K_1% 13K_1% 靠近DC-DC
Vout=0.6V*(1+R1/R2)
5 9
4 8
3 7
2 6
H4 H4
Hole/3.5mm孔径 Hole/3.5mm孔径
H20 H20 H21 H21
Mark Mark Mark Mark
H22 H22
Mark Mark
4
3
3.3V STANDBY
320mA Max
5VSTB
+3V3STB
3
IN IN
2 4
OUT OUT
C2 C2 C3 C3
0.1uF 0.1uF 2.2uF 2.2uF
1
ADJ ADJ
C8 C8 CE2 CE2
+ +
U2 U2
AMS1117-3.3V AMS1117-3.3V 0.1uF 0.1uF 100uF/16V 100uF/16V
1.8V FOR DDR
5VAIN
AVDD_DDR_1V8
3
IN IN
173mA
2 4
OUT OUT
C12 C12 C13 C13
0.1uF 0.1uF 2.2uF 2.2uF
1
ADJ ADJ
R7 R7 C16 C16 C17 C17
R1
U4 U4 220R 220R
AMS1117-ADJ AMS1117-ADJ 0.1uF 0.1uF 10uF 10uF
R2
R8 R8 100R 100R
Vout=1.25V*(1+R2/R1)=
3.3V FOR PANEL
5VSTB
LVDS-3V3
3
IN IN
2 4
OUT OUT
C22 C22 C23 C23
NC/0.1uF NC/0.1uF NC/2.2uF NC/2.2uF 1
ADJ ADJ
U7 U7 C24 C24 C25 C25
NC/AMS1117-3.3V NC/AMS1117-3.3V NC/0.1uF NC/0.1uF NC/10uF NC/10uF
Vout=1.25V*(1+R2/R1)=3.31V
Panel Power
5V_Switch
5VAIN
1
1 3
5VSTB 5VSTB
Q1 Q1
AO3401 AO3401
+12V
R15 R15 C27 C27
100K 100K 1uF 1uF
LVDS-3V3
+3V3STB
R19 R19
10K 10K
PANEL_ON/OFF
P_ON/OFF R23 R23 10K 10K Q3 Q3
1
2N3904 2N3904
C161 C161
NC/100PF NC/100PF
3
2
3.3V FOR DEMOD
320mA Max
5VAIN
3
IN IN
2 4
OUT OUT
C4 C4 C5 C5
0.1uF 0.1uF 10uF 10uF
1
ADJ ADJ
U3 U3
AMS1117-3.3V AMS1117-3.3V
3.3V FOR TUNER
200mA Max
5VAIN
3
IN IN
2 4
OUT OUT
C14 C14 C15 C15
0.1uF 0.1uF 2.2uF 2.2uF
1
ADJ ADJ
U5 U5
AMS1117-3.3V AMS1117-3.3V
+3V3STB
R12 R12
1K 1K
R13 R13 100R 100R P_ON/OFF P_ON/OFF P_ON/OFF P_ON/OFF
PWR-ON/OFF
C26 C26
NC/10NF NC/10NF
Q2 Q2
AP3401 AP3401
R14 R14 NC NC
1 3
R16 R16 0R/0805 0R/0805 R21 R21 470K 470K
R17 R17
100K 100K
R18 R18 NC NC D10 D10 1N4148 1N4148 C83 1uF C83 1uF
R20 R20
R131 R131 NC/10K NC/10K 10K 10K
PANEL_ON/OFF R22 R22 4.7K 4.7K Q4 Q4
1
2N3904 2N3904
C30 C30
R24 R24
10K 10K
4.7uF 4.7uF
惠州三华工业有限公司 深圳研发部 惠州三华工业有限公司 深圳研发部 惠州三华工业有限公司 深圳研发部
Size Size Size Document Number Document Number Document Number
C C C
Date: Date: Date: Thursday, March 20, 2014 Thursday, March 20, 2014 Thursday, March 20, 2014
2
1
VCC3V3
D
C9 C9 C160 C160 C10 C10
0.1uF 0.1uF 10uF 10uF 10uF 10uF
TUNER-3V3
+ +
C18 C18 CE4 CE4
0.1uF 0.1uF 100uF/16V 100uF/16V
C
P_ON/OFF
B
VCC-Panel
C28 C28 C29 C29
0.1uF 0.1uF 2.2uF/16V 2.2uF/16V
A
Rev Rev Rev
System Power System Power System Power
1 1 1
Sheet Sheet Sheet 1 1 1 of of of 9 9 9
1