TCL L32E4200 Service Manual page 27

5
AMPLIFER
D
L:MUTE
AMP-EN
R171 R171
NC/22K NC/22K C144 C144 R172 R172
330PF/NC 330PF/NC
C143 1uF C143 1uF
R176 R176 200R 200R
AMP-AUOUTL0
R173 R173 0R 0R C146 1uF C146 1uF
R178 R178 10K 10K
R180 R180 NC/0R NC/0R
AMP_PWR R186 R186 10R 10R
C150 1uF C150 1uF
C
C152 1uF C152 1uF
R187 R187
R188 R188 2K 2K
C154 1uF C154 1uF C156 1uF C156 1uF
R189 R189 0R 0R C157 1uF C157 1uF
R190 R190 200R 200R
AMP-AUOUTR0
R191 R191 C159 C159
NC/22K NC/22K 330PF/NC 330PF/NC
B
CN6 CN6
J-B2.54-4P-L J-B2.54-4P-L
AMP-Lout+
1
TP1 TP1
1 AMP-Lout- 2
TP2 TP2
1 AMP-Rout-
3
TP3 TP3
1 AMP-Rout+
4
TP4 TP4
1
A
5
4
AMP_PWR
C139 C139 C140 C140 C141 C141
100nf 100nf 100nf 100nf 1nf 1nf
U14 U14 TPA3113D2 TPA3113D2
1 28 AMP_PWR
SD PVCC1
1K 1K
2 27
FAULT PVCC2
C145 220nF C145 220nF
3 26
LINP BSN2
4 25
LINN OUTN2
5 24
GAIN0 PGND2
6 23
GAIN1 OUTN1
C149 220nF C149 220nF
7 22
AVCC BSN1
C151 220nF C151 220nF
8 21
AGND BSP2
9 20
GVDD OUTP2
4.7K 4.7K
10 19
PLIMIT PGND1
11 18
RINN OUTP1
C158 220nF C158 220nF
12 17
RINP BSP1
13 16
NC PVCC3
AMP_PWR
14 15
PBTL PVCC4
Table:Gain Setting
GAIN0(Pin 5)
4
3
L17 L17 0R/600ohm/100M/3A 0R/600ohm/100M/3A
+12V
C142 C142 CE7 CE7
1nf 1nf 470uF/25V/LOWESR 470uF/25V/LOWESR
L27 L27 FB_1206 FB_1206
L18 L18 NC NC AMP-Lout+
2 1
C147 C147
1NF/1uF/16V 1NF/1uF/16V
L28 L28 FB_1206 FB_1206
C148 C148
1NF/1uF/16V 1NF/1uF/16V
L19 L19 NC NC AMP-Lout-
2 1
L20 L20 NC NC AMP-Rout-
2 1
C153 C153
L29 L29 FB_1206 FB_1206
1NF/1uF/16V 1NF/1uF/16V
C155 C155
L21 L21 NC NC 1NF/1uF/16V 1NF/1uF/16V
AMP-Rout+
2 1
L30 L30 FB_1206 FB_1206
GAIN1(Pin 6) AMPLIFIER GAIN INPUT IMPEDANCE
0 0 20dB 60 KΩ
1 0 26dB 30 KΩ
0 1 32dB 15 KΩ
1 1 36dB 9 KΩ
3
2
H/W
Mute
5VAIN +12V
R174 R174 R175 R175
NC/0R NC/0R NC NC
Q17 Q17
D3 D3 NC/1N4148 NC/1N4148 R177 R177 NC/2.2K NC/2.2K
1
NC/2N3906 NC/2N3906
R179 R179 NC/3K NC/3K D4 D4 NC/1N4148 NC/1N4148 4.8V
4.6V
R185 R185 R184 R184 CE8 CE8
+ +
NC/47K NC/47K NC/100K NC/100K NC/100uF/16V NC/100uF/16V
L=Mute
Mute
H=Turn ON
5VAIN
+3V3STB
MUTE_C
R193 R193
R194 R194 10K 10K
R208 R208
10K 10K
AMP-EN
4.7K 4.7K
R195 R195 10K 10K Q19 Q19
1
AMP_MUTE
R196 R196 2N3904 2N3904
4.7K 4.7K
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
Custom Custom Custom
Date: Date: Date: Thursday, April 10, 2014 Thursday, April 10, 2014 Thursday, April 10, 2014
2
1
D
MUTE_C
R181 R181
NC/10K NC/10K
C
B
A
Rev Rev Rev
AMP AMP AMP
1 1 1
Sheet Sheet Sheet 7 7 7 of of of 9 9 9
1