Yamaha RX-V771, Service Manual

Page: 110 / 148

A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
111
DIGITAL 5/8
RX-V771
● ⚠印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
パーツリストに記載されている部品を使用してください。
● 本回路図は標準回路図です。改良のため予告なく変更することがあります。
★
Components having special characteristics are marked
⚠
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
IC81
IC90 IC89
IC83
CB88 CB87 CB86
CB95
CB85 CB84 CB93
CB81
CB83
CB89
CB82
IC91
IC91 IC92
IC91
IC91
IC91
CB92
CB90
CB91
IC92
IC99
IC98 IC97
IC96
IC96
IC95
IC94
IC93
IC93
IC93
IC94 IC95 IC96
IC82
IC86
IC87 IC85
IC84
IC80
IC80
IC80
A15
A14
A13
A12
A11
A10
A9
A8
A19
A20
WE#
RESET#
A21
WP#/ACC
RY/BY#
A18
A17
A7
A6
A5
A4
A3
A2
A1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24 A16
BYTE#
GND
Q15/A-1
Q7
Q14
Q6
Q13
Q5
Q12
Q4
VCC
Q11
Q3
Q10
Q2
Q9
Q1
Q8
Q0
OE#
GND
CE#
A0 48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
MX29LV640EBTI-70G
CONTROL
INPUT
LOGIC
PROGRAM/ERASE
HIGH VOLTAGE
WRITE
STATE
MACHINE
(WSM)
STATE
REGISTER
FLASH
ARRAY
X-DECODER
ADDRESS
LATCH
AND
BUFFER
Y-PASS GATE
Y-DECODER
ARRAY
SOURCE
HV
COMMAND
DATA
DECODER
COMMAND
DATA LATCH
I/O BUFFER
PGM
DATA
HV
PROGRAM
DATA LATCH
SENSE
AMPLIFIER
Q0-Q15/A-1
A0-AM
AM: MSB address
CE#
OE#
WE#
RESET#
BYTE#
WP#/ACC
IC82 : MX29LV640EBTI-70G
64 M-bit single voltage 3 V only flash memory
IC81 : R5F6416MADFE
Single chip 32-bit microprocessor
Port P0 Port P1 Port P2 Port P3 Port P4 Port P5 Port P6
8 8 8 8 8 8 8
Port P8
Port P10
Port P11
8
8
Peripheral functions
Port P15 Port P16 Port P13 Port P14 P14_1
8 8 8 5
Port P17
8
Port P18
8
Port P19
8
Clock generator:
4 circuits
- XIN-XOUT
- XCIN-XCOUT
- On-chip oscillator
- PLL frequency synthesizer
Watchdog timer:
15 bits
DMAC
DMAC II
X-Y converter:
16 bits × 16 bits
CRC calculator (CCITT)
X
16
+ X
12
+ X
5
+ 1
Serial interface:
11 channels
Timer:
Timer A16 bits × 5 timers
Timer B16 bits × 6 timers
Three-phase motor
controller
D/A converter:
8 bits × 2 channels
A/D converter:
10 bits × 1 circuit
Standard: 10 inputs
Maximum: 34 inputs
Intelligent I/O
Time Measurement: 16
Wave generation: 24
Serial interface:
- Variable-length
synchronous serial I/O
- IEBus
R32C/100 Series Microprocessor Core
R2R0
R3R1
R6R4
R7R5
A0
A1
A2
A3
FB
SB
FLG
INTB
ISP
USP
PC
SVF
SVP
VCT
Memory
ROM
RAM
Multiplier
Floating-point unit
R2R0
R3R1
R6R4
R7R5
A0
A1
A2
A3
FB
SB
Port P7
8
7
P8_5
Port P9
8
Port P12
8
Multi-master I
2
C-bus
interface:
1 channel
V
DD
CE
Vref
4 3
1 2
Current Limit
V
OUT
GND
Pin No.
1
2
3
4
Symbol
V
OUT
GND
CE
V
DD
Description
Output Pin
Ground Pin
Chip Enable ("H" Active)
Input Pin
IC97, 98 : RP130Q331D-TR-F
Voltage regulator
V
DD
CE
Vref
4 3
1 2
Current Limit
V
OUT
GND
Pin No.
1
2
3
4
Symbol
V
OUT
GND
CE
V
DD
Description
Output Pin
Ground Pin
Chip Enable ("H" Active)
Input Pin
IC99 : RP130Q501D-TR-F
Voltage regulator
IC92 : SN74LVC1G17DCKR
Single schmitt-trigger buffer
1
2
3
5
4
NC
A
GND
VCC
Y
INPUT
A
OUTPUT
Y
L
H
L
H
IC84, 85 : TC74VHC273FT (EL,K)
Octal D-type flip-flop with clear
1 CLR
Q1
Q2
Q3
Q4
GND
D1
D2
D3
D4
2
3
4
5
6
7
8
9
10
D CK CLR
L
H
H
H
X X
L
H
X
1
11
3
2
D R
CK Q
D1
Q1
CLR
CK
Q
L
L
H
Qn
Inputs Output
Function
Clear
−
−
No Change
20 VCC
Q8
Q7
Q6
Q5
CK
D8
D7
D6
D5
19
18
17
16
15
14
13
12
11
4
5
D R
CK Q
D2
Q2
7
6
D R
CK Q
D3
Q3
8
9
D R
CK Q
D4
Q4
13
12
D R
CK Q
D5
Q5
14
15
D R
CK Q
D6
Q6
17
16
D R
CK Q
D7
Q7
18
19
D R
CK Q
D8
Q8
IC91 : TC74VHC86FT (EL)
Quad exclusive OR 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
L L
L H
H H
H
L
A Y B
H
L
H L
IC80, 96 : TC7WZ32FK (TE85L, F)
Dual 2-input OR gate
1 1A
2 1B
3 2Y
4 GND
8 Vcc
7 1Y
6 2B
5 2A
IC83 : R1EX25512ATA00A
64 K word x 8-bit serial peripheral interface EEPROM
Vcc 8
Vss 4
S
1
W 3
C
6
Serial-parallel converter
Y-select and Sense amp.
Memory array
High voltage generator
HOLD 7
D 5
Q
2
Control logic
Address generator
Y decoder
X decoder
IC93 : TC7WH126FU
Dual bus buffer
1 G1
2 A1
3 Y2
4 GND
8 Vcc
7 G2
6 Y1
5 A2
IC89 : SN74LV4051APWR
8-channel analog multiplexers/demultiplexers
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
COM
INH
C
B
A
11
10
9
6
3
13
14
15
12
1
5
2
4
1
2
3
4
5
6
7
8 9
10
16
15
14
13
12
11
Y4
Y6
COM
Y7
Y5
INH
GND
GND
V
CC
Y2
Y1
Y0
Y3
A
B
C
INPUTS ON
CHANNEL
INH
L
L
L
L
L
L
L
L
H
L
L
L
H
H
H
H
X
C
L
L
H
H
L
L
H
H
X
L
H
L
H
L
H
L
H
X
L
Y1
Y2
Y3
Y4
Y5
Y6
Y7
None
Y0
B A
MICROPROCESSOR
to DIGITAL 1/8 to DIGITAL 2/8 to DIGITAL 3/8 to DIGITAL 4/8 to DIGITAL 7/8 to DIGITAL 6/8
to DIGITAL 8/8
No replacement part available.
サービス部品供給なし
DIGITAL (1)
to OPERATION (10)_CB494
Page 116 G2
(Writing port)
to OPERATION (1)_CB401
Page 115 E9
to VIDEO (4)_W3601
Page 121 C2
to MAIN (1)_CB156
Page 118 K7
to VIDEO (1)_CB324
Page 120 M5