Top View - Yamaha AV-S70 Service Manual

IC4 : YSS908-F (P.C.B. DSP)
AC3Dav
80 79
VDD
81
SDWCK0
82
SDBCK0
83
SDIA0
84
SDIA1
85
RAMA1
86
RAMA0
87
RAMWEN
88
RAMOEN
89
VSS
90
VDD
91
IPORT7
92
IPORT6
93
IPORT5
94
IPORT4
95
IPORT3
96
IPORT2
97
IPORT1
98
IPORT0
99
VSS
100
1 2
~
CONTROL
SIGNALS
CONTROL REGISTERS
/SDBCK0 57
SDBCK0 83
SDWCK0 82
SDI : SERIAL DATA INPUT
SDO : SERIAL DATA OUTPUT
SDIA0 84
SDIA1 85
STREAM0~7
SURENC 56
KARAOKE 55
OPERATING
MUTE 54
CLOCK (25MHz)
CRC 53
AC3DATA 52
78 77 76 75 74 73 72 71 70 69 68 67 66

TOP VIEW

3 4 5 6 7 8 9 10 11 12 13 14 15
~
MICROPROCESSOR
INTERFACE
CONTROL
SIGNALS
SDIBCKSEL
MAIN DSP
INPUT
AC-3/PROLOGIC
BUFFER
DECODER
DELAY
PLL RAM
65 64 63 62 61 60 59 58 57 56 55 54 53
16 17 18 19 20 21 22 23 24 25 26 27 28
COEFFICIENT
PROGRAM
SDIBCKSEL
L,R
Ls,Rs
C,LFE
EXTERNAL RAM
INTERFACE
ERAMUSE
~
AV-S70/NX-SW70
52 51
50 PVSS
49 SDWCK1
48 SDBCK1
SDOB0
47
46 SDOB1
45 SDOB2
RAMA7
44
RAMA8
43
RAMA9
42
VDD
41
VSS
40
OPORT7
39
OPORT6
38
OPORT5
37
OPORT4
36
OPORT3
35
OPORT2
34
OPORT1
33
OPORT0
32
PVDD
31
29 30
RAM
48 SDBCK1
49 SDWCK1
SDOBCKSEL
47 SDOB0
SUB DSP
46 SDOB1
45 SDOB2
DATA
RAM
15 OVFB
18