Harman Kardon HK BDS 270 Service Manual page 87

harman/kardon
A
Amplifier Board Circuit Diagram:74LVC541
1
LINE_LOUT
LINE_ROUT
L Work
H mute
D778 LL4148 D778 LL4148
Q713 Q713
PNP_3CG3906M PNP_3CG3906M
LINE_MUTE
D777 LL4148 D777 LL4148
BD_MUTE
R858 R858
10K 10K
A
2
3
MCLK_OUT
LRCLK_OUT
SCLK_OUT
BD_SDIN0
BD_SDIN1
BD_SDIN2
BD_SDIN3
MCU_BD
SD+3.3V
R24 R24 5.1K 5.1K
R27 R27
100K 100K
4
A
7-22
B
+3.3V +3.3V_LINEOUT
FB6 FB6 70/1A 70/1A
C149 C149
0.1uF/25V/Y5V 0.1uF/25V/Y5V
R847 R847
2.2K 2.2K
A R841 R841
C793 C793
100K 100K
C1061 C1061 0.47uF/50V/Y5V 0.47uF/50V/Y5V
1uF/10V/Y5V 1uF/10V/Y5V
R856 R856 C138 C138
470 470 120pF/50V/NP0 120pF/50V/NP0
LINE_LOUT
LINE_ROUT
C1063 C1063
U713 U713
1uF/10V/Y5V 1uF/10V/Y5V
AUDIO AMP_DRV602 AUDIO AMP_DRV602
Q709 Q709
NPN_MMBT8050C NPN_MMBT8050C +3.3V_LINEOUT
R857 1K R857 1K
C141 C141
470PF/50V/NP0 470PF/50V/NP0 R848 R848
C1064 C1064 C1066 C1066
1uF/10V/Y5V 1uF/10V/Y5V 0.1uF/50V/Y5V 0.1uF/50V/Y5V
C135 C135
A
120pF/50V/NP0 120pF/50V/NP0
R855 R855
A
470 470
R838 R838 20K 20K
Q708 Q708
NPN_MMBT8050C NPN_MMBT8050C
R854 1K R854 1K
C139 C139
470PF/50V/NP0 470PF/50V/NP0
A
1
2
3
9 11
SPDIF_DATA A7 Y7 4
8 12
AD_MCLK
A6 Y6
7 13
AD_LRCK A5 Y5
6 14
AD_BCLK
A4 Y4
5 15 R32 R32
TUNER_DATA
A3 Y3
4 16
AKM_DATA A2 Y2
3 17
R46 R46
A1 Y1
2 18
A0 Y0
1 20
OE1 VCC
19 10
OE2 GND
U202 U202
74LVC541APW 74LVC541APW
RN129 RN129
56*4 56*4
9 11 8 1
A7 Y7
8 12 7 2
A6 Y6
7 13 6 3
A5 Y5
6 14 5 4
A4 Y4
5 15 1 8
A3 Y3
4 16 2 7
A2 Y2
3 17 3 6
A1 Y1
2 18 4 5
A0 Y0
RN130 56*4 RN130 56*4
1 20
R29 47 R29 47
OE1 VCC
19 10
OE2 GND
SD+3.3V
U203 U203
C29 C29
74LVC541APW 74LVC541APW
0.1uF/25V/Y5V 0.1uF/25V/Y5V
R21 R21
10K 10K
Q9 Q9
NPN_MMBT8050C NPN_MMBT8050C
B
C
C755 C755
1uF/16V/Y5V 1uF/16V/Y5V R834 R834
100K 100K
R843 R843
2.2K 2.2K
LINE_MUTE
Q706 Q706
NPN_MMBT8050C NPN_MMBT8050C
R833 R833
20K/1% 20K/1%
C133 C133 10uF/10V/Y5V 10uF/10V/Y5V
LINE_RM
R839 R839 10K 10K
R849 R849 20K 20K
C1068 C1068
270pF/50V/X7R 270pF/50V/X7R
R842 R842 10K 10K R840 R840 20K/1% 20K/1%
C132 C132 10uF/10V/Y5V 10uF/10V/Y5V
LINE_RP
R851 R851
C128 C128
20K/1% 20K/1%
120pF/50V/NP0 120pF/50V/NP0
R844 R844
A
20K/1% 20K/1%
C137 C137 10uF/10V/Y5V 10uF/10V/Y5V
LINE_LP
R845 R845
C1051 C1051
10K 10K
270pF/50V/X7R 270pF/50V/X7R
R846 R846
20K/1% 20K/1%
10K 10K C136 C136 10uF/10V/Y5V 10uF/10V/Y5V
LINE_LM
R850 R850
C134 C134
20K/1% 20K/1%
120pF/50V/NP0 120pF/50V/NP0
A
RN128 RN128
56*4 56*4
8
7
6
5
56 56
56 56
SD+3.3V
C28 C28
0.1uF/50V/Y5V 0.1uF/50V/Y5V
TP06 TP06
MUXED_DA
TP07 TP07
I2S_MCLK
TP08 TP08
MUXED_LRCLK
TP09 TP09
MUXED_SCLK
TP010 TP010
MUXED_DAI0
TP011 TP011
MUXED_DAI1
TP012 TP012
MUXED_DAI2
TP013 TP013
MUXED_DAI3
C
7-22
D E
+3.3V_FB
R1012 R1012
10K 10K
R174 R174 U4 U4 R1014 R1014
47 47 BPC-817B BPC-817B 330R 330R
IR_IN
IR_IN
R166 R166
NC NC
C154 C154 C65 C65 R165 R165
NC NC
NC NC NC NC
+12V
R155 R155 F1 F1
0 0 SMD0805-035 SMD0805-035
SUB TRIGGER
C1079 C1079
100pF/50V/NP0 100pF/50V/NP0
D E
BDS 270 + 570 Service Manual
1
2
P5 P5
2
4
3
1
5
6
3
4
Page 87 of 90