Kalley K-LED32HDXDT2, Service Manual

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5 4 3
2
1
D
AMPLIFER
AMP_PWR L17
0R/600ohm/100M/3A +12V
H/W
D
Mute
C139 C140 C141 C142 CE7
100nf 100nf 1nf 1nf 470uF/25V/LOWESR
5VAIN +12V
L:MUTE
U14 TPA3113D2 R174 R175
R171
AMP-EN 1
SD PVCC1
28 AMP_PWR
L27 FB_1206 MUTE_C
NC/22K C144 R172 1K 2
FAULT PVCC2
27 NC/0R NC
3
Q17
330PF/NC
R176 200R C143 1uF C145 220nF
L18 2 1 NC
AMP-Lout+ D3 NC/1N4148 R177
NC/2.2K 1
AMP-AUOUTL0
3
LINP BSN2
26
NC/2N3906
R173 0R C146 1uF 4
LINN OUTN2
25 C147
2
1NF/1uF/16V R179 NC/3K D4 NC/1N4148 R181
R178 10K 5
GAIN0 PGND2
24
L28 FB_1206 R185 R184 CE8
R180 NC/0R C148 6 GAIN1 OUTN1 23
+
NC/10K
L19 2 1 NC
1NF/1uF/16V
NC/47K NC/100K NC/100uF/16V AMP_PWR R186 10R
C150 1uF
7
AVCC BSN1
22 C149 220nF AMP-Lout-
C C C151 220nF
L20
2 1
NC
AMP-Rout-
8
AGND BSP2
21
C153
C152 1uF
R187 15K
9
GVDD OUTP2
20
L29 FB_1206
R188 6.8K 1NF/1uF/16V 10
PLIMIT PGND1
19
C154 1uF C156 1uF 11
RINN OUTP1
18 C155
L21 NC 1NF/1uF/16V
R189 0R C157 1uF 12
RINP BSP1
17 C158 220nF 2 1 AMP-Rout+
AMP-AUOUTR0
R190 200R 13
NC PVCC3
16
L30 FB_1206
L=Mute
AMP_PWR Mute
R191 C159
14 PBTL PVCC4 15
2 9
H=Turn ON NC/22K 330PF/NC
5VAIN
2 9
+3V3STB
MUTE_C
R193
R208
R194 10K
1
10K
AMP-EN
4.7K
B 3 B
CN6 AMP_MUTE R195 10K 1 Q19
AMP-Lout+
J-B2.54-4P-L R196 2N3904
TP1 1
Table:Gain Setting
2
TP2 1 AMP-Lout- 2
4.7K
TP3
1 AMP-Rout- 3
1 AMP-Rout+ 4
TP4
1 GAIN0(Pin 5) GAIN1(Pin 6) AMPLIFIER GAIN INPUT IMPEDANCE
0 0 20dB 60 K
Ω
1 0 26dB 30 K
Ω
0 1 32dB 15 K
Ω
1 1 36dB 9 K
Ω
A A
Size Document Number Rev
Custom
AMP/Mute
1
Date: Thursday, November 12, 2015 Sheet 7 of 9
5 4 3
2
1