Digital Audio Board (3/4) - Sony STR-KM5 Service Manual

STR-KM5/KM7
Ver. 1.1
5-11. SCHEMATIC DIAGRAM – DIGITAL AUDIO Board (3/4) –
1 2 3
A

DIGITAL AUDIO BOARD (3/4)

B
C2361
R2356 R2357
0.1
JL2872 470 47k
COAXIAL
DIGITAL
BD/DVD IN
R2855 R2358
470k
75
J2301
C2355
1P 22
6.3V
3.3
8 7
IC2303
TC7WHU04FK
IC2303
C
IC B/D
WAVE SHAPER
1 2
2.5 2.9
D
E
DA2J10100L
DIR_SIGNAL
FB2801
2.7kohm
C2267
100
F
16V
C2270 0.1
C2923 0.1
SL/SR_IN R2417 0
C/SW_IN R2415 0
SBL/SBR_IN R2416 0
G
R2901 10k
ERROR
DIGITAL
DIR_XSTATE
AUDIO
NPCM
BOARD
3
5
(1/4), (2/4)
4 IC B/D
(Page 22),
(Page 23)
H
R2816
220
R2815
1M
X2801
24.576MHz
C2815 C2814
7p 7p
I
DIGITAL
IC2351
J
AUDIO
DIGITAL OPTICAL
BOARD RECEIVE
8
19
(4/4)
20
(Page 25)
IC2351
C2370 10
JSR1124
GND
R2351 100
OPTICAL 3.3 JL2871
OUT
GAME IN
3.3 C2351 0.1
K VCC
DIGITAL
JL2868
GND
OPTICAL
R2354 100
3.3 JL2869
OUT
SAT/CATV
3.3 JL2870 C2354 0.1
IN
VCC
IC2352
JSR1124
IC2352
DIGITAL OPTICAL
RECEIVE
STR-KM5/KM7
• See page 45 for Waveforms.
4 5 6 7
DIGITAL AUDIO BOARD (1/4)
(Page 22)
2
2 3
1.2 1.2
6 5
3 4
FB2891
R2759
0uH
100
D2104
C2269
0.068
R2104
1k
FB2603 C2268
R2050
2.7kohm 1000p
100
3.3 0 3.3 0 0 3.3 0 0 3.3 3.3 3 3.3
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
C2922
0.1
3.3
17 DGND PVDD 64
3.3
18 DVDD RXIN1 COAXIAL 63
0 3.3
19 RXIN2 USB SPDIF 62
2.8 0
20 RXIN3 HDMI SPDIF 61
0 0
MPOUT1 DSP SID
21 RXIN4 ARC SPDIF 60
0
MPOUT2 DSP SIE 3.3
22 MPOUT4 RXIN5 OPTICAL GAME 59
3.3
MPOUT3 DSP SIF
23 ERRF ERROR RXIN6 OPTICAL SAT/ CATV 58
3.3
24 MUTEB XSTATE RXIN7 57
3.3 C2920
25 NPCMF NPCM IC2806 RXIN8 56
0.1
0
LC89075W-H
26 MPIO1 DGND 55
IC2806
3.3
27 MPIO2 DVDD 54
DIGITAL AUDIO INTERFACE RECEIVER
28 MPIO3 RXOUT 53
29 MPIO4 DGND 52
30 XMCK RXIN1A COAXIAL 51
5
31 XOUT RXIN2A 50
0
32 XIN RXIN3A 49
3.3
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
0 3.3 3.3 0 0 0 3.3 3.3 0 3.3 3.3 3.3
C2921 0.1
C2274 C2273
0.1 0.1
C2265 C2266
100 100
16V 16V
D2715
1SS367-T3SONY
D2716
1SS367-T3SONY
C2958
0.1
• See page 49 for IC Block Diagrams.
8 9 10
R2925
47
R2987
100
C2977 0.1
3.3
1 CKA VCC 14
1.7
1.7
2 RDA 13
CKB
3 Q1A RDB 12
4 Q2A 11
Q1B
0
5 Q3A Q2B 10
USB_SPDIF
3.3
R2912
HDMI_SPDIF
100
6 Q4A Q3B 9
1.7
ARC_SPDIF
1.7
7 GND Q4B 8
IC2007
TC74VHC393FT (ELK)
IC2007
IC B/D
BINARY COUNTER
C2074
C2072
C2069
R2099 0.01
10k
DIR_XSTATE
Q2706
RT1N141C-TP-1
0
MUTE SWITCH
2.8
R2125
10k
24 24
11 12 13 14
IC2805
TC74VHC08FT (EKJ)
IC2805
IC B/D
SIGNAL SELECTOR
3.3
1 A0 VCC 14
1.7
1.7
2 B0 13
A3
3.3
3.3
3 Y0 B3 12
R2958
1.7
100
1.7
4 A1 11
Y3
1.7
1.7
5 B1 A2 10
3.3
R2109 10k 3.3
6 Y1 B2 9
R2959
1.7
100
3.3 1.7
1 CK VCC 8 7 GND Y2 8
C2070
3.3
0.1
2 D PR 7
C2468 0.1
3.3
3 Q CLR 6
C2470 10
FB2892
3.3
0uH
4 GND Q 5
IC2009
TC7WH74FK
IC2009
SCHMIT TRIGGER
10
0.1
DSP_SEL
3.3
1 SEL VCC 16
0
2 A0 ST 15
3.3
ERROR
3.3
3 B0 A3 14
0
0
4 Y0
B3 13
R2059
3.3
100
DSP_ERROR
3.3
5 A1 Y3 12
0
6 B1 A2 11
IC2804
1.4
7 Y1 B2 10
IC B/D
0
MUTING
8 GND Y2 9
IC2804
TC74VHC157FT (EKJ)
DSP_NONAU
NPCM
HDMI_NLPCM
15 16 17
DIGITAL AUDIO BOARD (1/4)
(Page 22)
5
8 11 9 10
21
C2881 C2870
0.1 0.1
DIGITAL
C2868 C2871
10 10
AUDIO
C2869 C2872 10
BOARD
220 4V 220 4V
(4/4)
FB2884 FB2885
(Page 25)
220ohm 220ohm
22
23
24
25
26
DIN4
DIN1
DIGITAL
AUDIO
27
9
28 BOARD
29
(4/4)
30
(Page 25)