Yamaha DSP-AX763, Service Manual

Page: 107 / 155

IC44
IC49
IC51
IC41
IC56 IC56 IC56 IC56
IC42
CB41
JK41
JK41
IC57
IC57
IC52 IC52
IC52 IC52
IC52 IC52
IC54 IC50
IC48
IC55
IC46
IC45
IC47
CB46
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V663/HTR-6160/DSP-AX763
107
★
All voltages are measured with a 10M
Ω
/V DC electronic voltmeter.
★ 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.
DIGITAL 3/5
B-2
B-1
3.4
0
3.3 3.3 1.6 3.4
0
3.4
0
3.4
0
0
0
0
3.3
0
3.4
3.4
0
3.4
0
0
2.0
2.1
1.5
3.4
0
0
1.7
3.4
0
5.0 5.0 4.9 5.0 5.0 5.0 0 0 5.0
0 0 0
3.4 0.5 1.0 3.4 3.4
0
5.0 0 0 0 5.0 0.5 0 5.0 5.0 5.0
0
0
0
0
3.4
3.4
0
0
0
0
0
0
0
0
3.4
0
0
0
0
0
3.4
0
3.4
3.4
0
3.4
3.4
3.4
3.4
1.8
3.4
0
0
0
3.4
2.0
2.1
1.5
0
0
0
0
0
0
0
0
0
0
0
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
0
0
0
0
0
0
0
0
0
1.7
0
0
3.4
3.4
0
0
0
1.0
1.7
0
0
1.3
3.4
0
0
0
0
0 0
0
3.0
3.0
0
1.2
1.2
0
3.0
4.9
3.4
4.9
0
4.9
3.4
0
0
3.4
1.7
1.7
0
0
0
0
0
1.7
1.7
1.7
0
0
0
0 3.4
1.3
1.3
0
0
0
0
0
0
1.7
1.7
1.7
0
0
0
5.0
0.2
11.9
0
0.2
0.2
0.2
-11.4
0.2
0.2
5.0
0
0
0
0
0
0
1.5
0
1.3
3.4
0
0
3.4
3.4
0 0
1.7
1.7
1.7
3.3
0
3.4
0
3.4
0
0
3.4
0 0 3.4
1.3 1.3
0
0
3.4
1.3 1.3
0
0
0
0
3.4
0
3.4
3.4
0
3.4
0
0
4.0
0
0
0.2
4.5
4.5
3.4
0
3.3
0
0
0
3.4
0 0 0 0
1.7 0 1.7 0 1.7 0 1.4 0
0
0
0
0
0
1.7 1.7 1.7 1.3 1.4
3.4
3.4
0
3.4
0.2
0
0 5.0
3.4
3.4
0 0
0 3.3 1.0 1.6
3.3
0
3.4
0
0
3.4
3.4
0
0
1.6
1.6
1.6
0
5.0
0
4.0
0
5.0
0.2
0
5.0
0.2
0
5.0
2.0 2.5 4.5 2.0
2.0 2.5 4.5
4.9 0 0
2.0
5.0
0
0
0
0
0
3.3
0
3.3
3.4
0
1.2
1.6
3.4
0
1.2
0
0
0
1.2
3.4
1.2
0
0
3.4
0
3.4
3.4
3.4
3.4
3.4 3.4
3.4
0 0
3.4
0
1.2
0
1.2
0 0 0 0
3.4
0
0
3.4
3.4
3.4 1.8 3.4
3.4
0 0
1.2
0 1.2
0 0
0
0 0 0 0 0
0
3.4
3.4
1.2
0
0
1.7 0 1.2 1.2 0 3.4 0.2
0 0 3.4 1.3
0 0
0 1.3 1.3 0
0 1.7 1.7 1.7
0
0 0
3.4
0 0 1.3
0
3.3 1.0 3.3
0
1.6 1.0
0
3.4
0
3.4
3.4
0
0
3.4
0
3.4
1.2
3.4
0
3.4
3.4
3.4
0
3.4
1.5
1.2
1.2
0
0
1.7
2.0
2.1
0
3.4
0
0
3.4
0
3.4
0
3.4
DIGITAL IN
FL/FR
PL/PR
C
SL/SR
SBL/SBR
ANALOG IN
DSP-
AX763
DSP-
AX763
RX-V663 RX-V663 RX-V663/HTR-6160
RX-V663/
HTR-6160
Input
Selector
RXOUT
RX0
RX1
RX2
RX3
RX4
RX5/VI
RX6/UI
LPF
TMCK/PIO0
TBCK/PIO1
TLRCK/PIO2
TDATA/PIO3
TXO/PIOEN
Cbit, Ubit
Microcontroller
I/F
Data
Selector
Clock
Selector
Modulation
&
Parallel Port
PLL
XIN XOUT XMCK CKST
SLRCK
SBCK
RLRCK
RBCK
RMCK
SDIN
RDATA
RERR
DO
XMODE CI CE CL INT AUDIO/VO EMPHA/UO
1/N
Demodulation
&
Lock detect
1
2
3
4
5
8
9
10
13
44
45
46
47
48
29 28 27 34
23
22
20
17
16
24
21
36
37
41 38 39 40 35 33 32
IC41 : LC89057W-VF4AD-E
Digital audio interface transceiver
IC56 : TC74VHC08FT
Quad 2-input AND gate
Vcc 14
4B 13
4A 12
4Y 11
3B 10
3A 9
3Y 8
1A 1
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
IC55 : TC74VHC157FT
Quad 2-channel multiplexer
SELECT 1
1A 2
1B 3
1Y 4
2A 5
2B 6
2Y 7
GND 8
Vcc 16
ST 15
4A 14
4B 13
4Y 12
3A 11
3B 10
3Y 9
A S G
B A
Y B
A Y
B A
Y Y B
1 G1
A1
A2
A3
A4
A5
A6
A7
A8
GND
Vcc
G2
Y8
Y7
Y6
Y5
Y4
Y3
Y2
Y1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
IC50 : TC74VHC541FT
Octal bus buffer
1 G1
A1
A2
A3
A4
A5
A6
A7
A8
GND
Vcc
G2
Y8
Y7
Y6
Y5
Y4
Y3
Y2
Y1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
IC54 : TC74VHCT541AFT
Octal bus buffer
VCC
6A
5A
4A
6Y
5Y
4Y GND
3Y
3A
2A
1A
2Y
1Y
1
2
3
4
5
6
7
14
13
12
11
10
9
8
IC52 : TC74VHCU04FT
Hex inverters
IC57 : NJM4565M
Dual operational amplifier
8
2, 6
3, 5
1, 7
4
V+
–INPUT
+INPUT
V–
OUTPUT
IC48 : R1172H331D-T1-F
Voltage regulator
IC47 : R1172S121D-E2-F
Voltage regulator
V
DD
CE
Pin No.
1
2
3
4
5
Symbol
CE
GND
NC
V DD
V OUT
Description
Chip Enable Pin
Ground Pin
No Connection
Input Pin
Output Pin of Voltage Regulator
Vref
4 5
1 2
Current Limit
V
OUT
GND
V
DD
CE
Pin No.
1
2, 5
3
4
6
Symbol
VOUT
GND
CE
NC
VDD
Description
Output Pin of Voltage Regulator
Ground Pin
Chip Enable Pin
No Connection
Input Pin
Vref
6 1
3 2,5
Current Limit
V
OUT
GND
POINT B-1 XL41 (Pin 28 of IC42) POINT B-2 XL42 (Pin 29 of IC41)
No replacement part available.
サービス部品供給なし
DSP
XM/DT IC
DIR
SELECTOR
64M SDRAM 16M FLASH ROM
REGULATOR
CO
AXIAL
OPTICAL
DIGIT
A
L INPUT
DIGIT
A
L OUTPUT
RX-V663/DSP-AX763
HTR-6160
XM
SIRIUS
to OPERATION (4)_W442
Page 112 H2
to DIGITAL 2/5
to DIGIT
A
L 4/5
to DIGITAL 1/5
(U, C models)