Yamaha AVR-S80 Service Manual page 56

A B
AVR-S80/NX-SW80
AVR-S80 SCHEMATIC DIAGRAM (DSP)
1
2
4M DRAM
4.9 0.1
0.8 0.5
0.8 0.5
0.8 0.5
0.8 0.5
3
4.9 0.1
1.0 0.5
1.1 0.5
1.1 0.4
1.0 0.3
2.2
3.2 2.2
1.7 2.1
~
1.2 ~
~ ~
~ ~
~ ~
4.9 0.1
0.3
OPT B
0.1
4.9
4
5
6
256K SRAM
7
8
9
56
C D E
2.6 5.0
REGULATOR
3.4 5.0
2.6
3.4 5.0
0.1
0.1
0.1
0.1
2.6
0.4
0.1
DSP
0.1
0.1
0.1
3.5
0.1
4.6
0 0.1
0.1
0.3
4.8
4.8
0.1 0
0
0.3
0.1
4.2
4.2
3
0.1
2.6
PLD
# All voltages are measured with a 10MΩ/V DC electric volt meter.
# Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
# Schematic diagram is subject to change without notice.
F G
Page 55 D1
to MAIN (1)
EUROPEAN
DVD/CD L (ANALOG IN)
IC601: MSM514260C-60JS
4Mbit DRAM
RAS 14
LCAS 29
UCAS
28
0.8
0.8
A0~A8
0.8
2.6
0.1
0.1
0.1
3.5
0.1 VCC 20
3.5
0.1
VSS 21
0.1
3.5
0
1.4
1.4
1.4
0.1
0.1
1.8
1.8
1.8
0.1
0.1
0.1
2.6
0.1
3.5
3.5
0
2.5
0
CODEC
0 2.5
2.5
1.8
1.8 2.5
2.5
1.4
2.5
1.4
2.5
1.4
2.5
1.9
2.5
0
0.1 2.5
DECODER
0.3
0.1
5.0
0.3
0.1
0.3
0.1
H I
WE OE
13 27
Timing
Generator
I/O
Controller
Output
8
I/O 8
Buffers
Controller
DQ1~DQ8
Column
Input
9 Address 9 Column Decoders
8 8
Buffers
Buffers
I/O
Internal
Sense Amplifiers 16 16
Refresh Selector
Addess
Control Clock
Counter
Input
8
8
Buffers
Row
Row
9 Address 9 Word
Deco- Memory DQ9~DQ16
Buffers Drivers Cells
ders
Output
8
8 Buffers
On Chip
VBB Generater
Point 3 Pin 2 of IC600
2.5 2.5
12.0 12.0
2.5 2.5
2.5 2.5
2.5 2.5
2.5 2.5
-12.0 -12.0
2.5 2.5
FRONT L
12.0
0.4
0.2
2.2
CENTER
0.2
1.0
0.2
-12.0
12.0
0.3
0.3
1.1
REAR L
0.3
1.1
0.3
-12.0
12.0
0.4
0.4 1.4
0.3 1.3
0.3
-12.0
IC617~621: µPC4570G2
Dual OP-Amp
OUT 1 8 +V
1 CC
–IN 2 7 OUT
1 2
+ – + –
+IN 1 3 6 –IN 2
–V CC 4 5 +IN 2
J K L
IC602: PQ025EZ5MZP
Regulator
Vin 1 3 Vo
2 Vc
5
GND
IC603: µPC29M33T-E1
Voltage Regulator
1 INPUT
Safety Drive
Limiter
Amp.
3 OUTPUT
Excessive Electric
Current Protection
2 GND
IC604: CS493292-CLR
Audio Decoder
A0, SCCLK 7 39 AUDATA2
DATA7, EMAD7, GPIO7 8 38 DC
DATA6, EMAD6, GPIO6 9 37 DD
DATA5, EMAD5, GPIO5 10 36 RESET
DATA4, EMAD4, GPIO4 11 35 AGND
VD2 12 34 VA
DGND2 13 33 FILT1
DATA3, EMAD3, GPIO3 14 32 FILT2
15
DATA2, EMAD2, GPIO2 31 CLKSEL
DATA1, EMAD1, GPIO1 16 30 CLKIN
DATA0, EMAD0, GPIO0 17 29 CMPREQ, LRCLKN2
36 8 9 10 11 14 15 16 17 18 5 4 19 7 6 20 21
37
Parallel or Serial Host Interface
27
38
Compressed
28 Data Input
Interface Frame
29 Shifter 24-Bit
44
DSP Processing
43
Input
RAM RAM
Buffer RAM Output 42
Program Data
25 Digital
Controller Buffer Output 39
Memory Memory
Audio
Formatter 40
26 RAM RAM
Input
Program Data 41
Interface
22
Memory Memory 3
RAM Input
Buffer
STC
30
PLL
31 Clock Manager
32 33 34 35 24 13 2 23 12 1
IC608: CY62256LL
Static RAM
I/O
A 0
10 INPUT
A
9 BUFFER I/O 1
A
8
A I/O 2
7
A 6
I/O
A 512x512 3
5
A ARRAY I/O
4 4
A
3
A I/O 5
2
POWER I/O 6
CE
DOWN
WE I/O 7
COLUMN
DECODER
OE
IC609: XC9572XL-10TQ100C
CPLD
3
JTAG
JTAG Port In-System Programming Controller
1
Controller
54
Function
I/O
Block 1
18
Macrocells
I/O
1 to 18
I/O
I/O 54
Function
Block 1
18
Macrocells
1 to 18
I/O
I/O
Blocks
I/O 54 Function
Block 1
18
I/O
Macrocells
1 to 18
I/O
3
I/O/GCK
54 Function
1
I/O/GSR Block 1
18
Macrocells
2
I/O/GTS 1 to 18
IC614: AK4527BVQ
24bit CODEC
IC610: TC74HCT08AF
Audio Quad 2-Input And Gate
LIN+ 30
I/F
ADC HPF
LIN- 29
1A 1 14 Vcc
RIN+ 32
ADC HPF
1B 2 13 4B
RIN- 31
1Y 3 12 4A
LOUT1 27 LPF DAC DATT MCLK 39 MCLK 2A 4 11 4Y
LRCK 6 LRCK
2B 5 10 3B
BICK 4 BICK
ROUT1 28 LPF DAC DATT
2Y 6 9 3A
10 DAUX
GND 7 8 3Y
LOUT2 25 LPF DAC DATT
Format
Converter
ROUT2 26 LPF DAC DATT
6DOUT
1 SDOS
LOUT3 LPF DAC DATT
23
9 SDTO
LPF DAC DATT SDIN1 6 SDTI1
ROUT3 24
SDIN2 7 SDTI2
SDIN3 8 SDTI3