3-11.Sound Amplifier Circuit Diagram - Toshiba 15DL72 Service Manual

1 2
3-11. Sound Amplifier Circuit Diagram
A
B
C
D
E
F
G
3 4
R681
0.82/2W
Vin
12
IC681
TDA1517
C683
1uF/ 50V
R6 82 1 K
MAIN_ AUDIO_L
R6 83
C685
8.2 K 330pF
C686
220uF/ 16V(DIP)
R685
24K
C688
1uF/ 50V
R6 88 1 K
MAIN_ AUDIO_R
R6 89 C690
8.2 K 3 3 0pF
R691
10K
R 6 92 22K 1 Q68 1
EXT_MUTE
BC848
+ C6 92
1uF/ 50V
Vin
R6 93
4.7 K
D681
UDZS8 .2B Q68 2
R 6 94 22K 1 BC 848
R695 22K Q683
1
BC 848
R696
10K
2-27
5 6
C6 82 C6 81
+
1 0 0nF 2200u F/16V
C684
1000 u F/16V
1
Lin
4
OUT_L
R684
10
3
Vref
+
C687
2 1 0 0nF
S_GND
9 6
Rin OUT_R
R690 C6 89
10 1000 u F/16V
8
Mute
C691
1 0 0nF
L681
N 2 012ZA400T06
PWR
7 8 9
JA681
YKB21-5101A
PHONEJACK STEREO 2 JACK
5
R6 86 SPEAKER L
4
HW220
2 AUDIO L
R6 87 AUDIO R
3
HW220
7 SPEAKER R
8
1
C N 681
B 4 B-EH
1
2
3
4
2-28
10
Fig. 2-3-11