Yamaha HTR-6280, Руководство по обслуживанию

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A
1 2 3 4 5 6 7 8 9
10
BCD
E
F
G
H
I
J
K
L
MN
131
GUI 1/2
RX-V1065/HTR-6280/AX-V1065
★
All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★
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.
●
電圧は、内部抵抗
10MΩの電圧計で測定したものです。
●
⚠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ございます。
IC506
IC505
IC523
CB502
IC522 IC522
IC522
IC522
CB501
CB500
IC521 IC521
IC521
IC521
CB503
IC504
IC507
IC513
IC501
IC503
IC502
IC525
IC523
IC523
IC523
IC525 IC525
IC525
IC526
IC526 IC526
IC526
IC524
IC524
IC524
IC526
IC512 IC511 IC510 IC509
IC508
1.7
3.4 3.4 3.4 3.4 3.4 0.2 0.7 3.4 3.4 3.4 3.4 2.5 2.6
0.3
0 0 5.1 5.1 3.4
1.3 1.3
1.6
1.7
1.6
1.7
1.7
3.4 3.4 3.4 3.4
3.4
2.5
5.1
0
0
0
2.5
0
5.1
2.6
3.4 3.4
1.7 1.7
0.3 0.3 3.3
1.7
0
1.7 1.7 1.7
0 0
3.4
3.4
3.4
0
0
1.3
1.3
1.3
1.7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.3
3.4
0
0
0
0
3.4
3.4
3.4
2.7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.8
0
0
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
3.0
3.0
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
1.0
1.0
1.7
1.7
1.7
1.3
1.7
1.7
3.4
0
0
0
0
0
0
0
0
3.4
0.3 0.7
0
0
0
0 0
3.4
2.6 2.5
3.1
2.5 2.5
0 0 0
1.7
3.4
2.5
3.4 3.4 0 0 0 0 0 0 0 0
3.4
3.4 3.4 0 0 0 0 0 0 0 0
3.4
3.4 3.4 0 0 0 0 0 0 0 0
3.4 0.3 0.3 0.3 3.0
0 0 0 0 0
3.4 3.4 0 0 0 0 0 0 0 0
3.4
0 0 0 3.0 3.0
0.3
0.3 0.3 0.3 0.3 0.3 0 0.3 0 0.3 0 0.3 0 3.4 3.4 0.2
0.3 0.3
0.3
0.3 0.3
0.3
3.4
0
3.4
3.4
3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4
3.4 3.4 3.4 3.4 3.4 1.7
3.3 3.2
1.8 1.3
3.4
3.4
3.4 3.4
3.4
1.3
1.3
3.4
3.4
3.4
3.4 3.4
3.4 0.2 0.2
0
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0
0
3.1 3.3
1.3
1.7
1.7
0 1.7 3.1
1.3 3.4 3.4 3.4 1.3
0 0 0 0 0
0
0
0 0 0 0
0
0
0 0
3.4
3.4
0.8
3.4
0 0
0 0 0 0 0 0 0 0 1.8 1.8
0.2
3.0
3.4 3.4
3.4 3.4 3.4
3.4
0 0
3.4 3.4 3.4 3.4
3.4
3.4 3.4 3.4 3.3
2.7
3.3
3.3
0
0
0
3.4
3.4 3.4 3.4 3.4
3.4 3.4 3.4 1.7 3.4
3.4
3.2 2.7
3.4
0
0 0 0 0 0 0 0 0
0.3
0.3 0.3
3.0
0 0 0
0 0
1.8 3.4 3.4 3.4 3.4 3.4
3.4 3.4 3.4 3.4
0 0 0
3.4 1.7 2.7
3.4
3.0 0.2 0.3 0.3 0.3 0.3 0.3 0.3
0
0
3.4
0
0 0
3.4 2.5
3.4
3.4
3.4
0
3.3
0
0
0
3.4
3.4
3.3
0 0 0
0 0 0 0
3.4
0 0 0 0
0.3
0
3.4
1.7 3.4
1.7
1.7 1.7 1.7
0
3.4 3.4
3.4 3.4
0 0
1.7
1.7
1.7
1.7
1.7
1.7
USB IN
POINT
F XL500 (Pin 6 of IC521)
POINT
G XL50
1 (Pin 6 of IC522)
POINT
H XL502 (Pin 1
0
of IC505)
F
G
H
(1) Open-drain output for the PCM1782
NOTE: Signal names in parentheses ( ) are for the PCM1781.
Power Supply
Enhanced Multilevel
Delta-Sigma
Modulator
V
OUT
L
Oversampling
4 x 8 Digital Filter
With
Function
Control
Audio Serial
Port
BCK LRCK DATA
Serial
Control
Port
Zero Detect
(TEST) SCK
System
Clock
Manager
MC (DEMP1) M
S
(DEMP0)
Output Amp
and
Low-Pass Filter
MD (MUTE)
DAC
V
COM
System Clock
AGND
V CC
ZEROR/ZEROA (1)
(ZEROA)
ZEROL/NA
(1)
Output Amp
and
Low-Pass Filter
DAC
V
OUT
R
(FMT)
ZEROA V
OUT
L
V
OUT
R
V
COM
AGND V
CC
NC TEST
16 15 14 13 12 11 10
9
FMT
DEMP0 DEMP1
MUTE
SCK
DATA
BCK
LRCK
1 2 3 4 5 6 7 8
IC504
: PCM1
781DBQR
A
udio digit
al-t
o-analog con
v
e
rt
er
A
2
B
3
C
4
D
5
ENP
6
GND
L
O
AD
ENT QD QB QC RO
C
VC
C
QA
7 8
IC50
1,
502
: SN7
4L
V1
63APWR
4-bit s
ynchr
onous binar
y count
er
s
CLR CLK
1
15 14 13 12 11 10
9
16
D
6
QD
11
QC
12
QB
13
QA
14
RCO
15
C
5
B
4
A
3
CLK
2
CLR
1
ENT
10
LO
A
D
9
ENP
7
CK
CK
R
LD
LD
M1 G2 G4 3D 4R
1,2T/1C3
M1 G2 G4 3D 4R
1,2T/1C3
M1 G2 G4 3D 4R
1,2T/1C3
M1 G2 G4 3D 4R
1,2T/1C3
IC523
: 74LVC08APW
Quad 2 input AND gate
1
1A
2
1B
3
1Y
4
2A
5
2B
6
2Y
7
14
Vcc
13
4B
12
4A
11
4Y
10
3B
93
A
83
Y
GND
IC508
: 74LVC1G08GW
Single 2 input AND gate
1
B A
2 3
GND
5 4
Vcc Y
IC509-512
: 74LVC245APW,118
Octal bus transceiver with direction pin with 5 V tolerant input/outputs (3-state)
1
DIR
2
A0 A1 A2 A3 A4 A5 A6 A7
3 4 5 6 7
20
Vcc
19 18 17 16 15 14
8 9
10
13 12
B6 B5 B4 B3 B2 B1 B0 OE
11
B7
GND
IC525
: 74LVC32APW
Quad 2 input OR gate
1
1A
2
1B
3
1Y
4
2A
5
2B
6
2Y
7
14
Vcc
13
4B
12
4A
11
4Y
10
3B
93
A
83
Y
GND
2CLR
13
2D
12
2CLK
11
2PRE
10
2Q
9
2Q
8
1D
2
1CLK
3
1PRE
4
1Q
5
1Q
6
GND
7
IC503
: SN7
4L
V7
4APWR
D
ual positiv
e edge tr
igger
ed D-t
ype f
lip f
lop
Vc
c
14
1CLR
1
IC524
:
TC7WH1
4FK
Triple schmitt inverter
1 2 3 4
8 7 6 5
1A 3Y 2A
GND
V
CC
1Y 3A 2Y
IC505
: AD91
089ZSKBC
Micr
opr
ocessor
PPI/GPIO
L1 dat
a
memor
y
JT
A
G
t
est
and em
ulation
V
olt
age
regulat
or
L1 instr
uction
memor
y
Memor
y
management
unit
C
o
re/S
y
s
tem b
us int
erf
ace
R
eal time cloc
k
U
A
R
T
por
t IrD
A®
Ser
ial por
t (2)
DMA contr
oller
Boot R
O
M
SPI por
t
Ext
er
nal por
t FLA
SH,
SDRAM contr
ol
Ev
ent contr
oller/
C
o
re
timer
W
atch doc
k timer
T
imer0, T
imer1, T
imer2
Y
Delay
C
Delay
10-bit DAC
22
C
DVDD
DVSS
Data[7:0]
AVDD
AVSS
Composite Y
Chroma
LPF Filter
(x2 Interpolator)
Sub-Carrier
Generator
Input formatter
EAV Decode
VREF
Generator
Sync-Form
Generator
Timing Generator
u-P I/F (I
2
C)
and
Registor
Macrovision
CGMS-A
WSS
4:2:2 to 4:4:4
(x2 Interpolator)
Lurra Filter
(x2 Interpolator)
IC506
:
AK881
4VQ
NTSC/P
AL digit
al video encoder
10-bit DAC 10-bit DAC
20
IREF
VREFIN
VREFOUT
/RESET
HSYNC
CLKNV
SELA
VSYNC
CLK
/PD
SDA
SCL
29
28
27
18
6,31,42,44
21,26
7,30,40,47
19,23,25
17
16
14
45
46
15
IC507
: K4S561632J-UC75000
256 M synchronous DRAM
Bank Select
CLK
Row Decoder
I/O Control Output Buffer
Sense AMP
Address Register
Data Input Register
Column Decoder
Latency & Burst Length
Programming Register
16M x 4 / 8M x 8 / 4M x 16 16M x 4 / 8M x 8 / 4M x 16 16M x 4 / 8M x 8 / 4M x 16 16M x 4 / 8M x 8 / 4M x 16
Col. Buffer
Row Buffer
Refresh Counter
ADD
LCKE
LRAS
CLK
LRAS
LCAS
Timing Register
LCBR
LWE
LDQM
DQi LDQM LWE
LWCBR
CKE
CS
LCBR
WE
L(U)DQM
RAS
CAS
1
V
DD
V
SS
V
SS
V
SS
N.C/RFU UDQM CLK CKE A12 A11 A9 A8 A7 A6 A5 A4 V
SSQ
V
SSQ
V
DDQ
V
DDQ
DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 DQ9 DQ8
V
DD
V
DDQ V
DD
V
DDQ
V
SSQ
V
SSQ
DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7
LDQM
WE
CAS RAS
CS
BA0
A0 A1 A2 A3
BA1
A10/AP
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 54 53 52 51 50 49 48 47 46 45 44
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
MX29LV640D T/B
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#
AP#/ACC
IC51
3
: MX29L
V640DBTC-90G
64 M-bit single v
olt
age 3V onl
y f
lash memor
y
IC521-522
: TC7WHU04FU
Triple inverter
8 1
1A
V
CC
7 2
3Y 1Y
6 3
2A 3A
5 4
GND
2Y
SUB-MICROPROCESSOR
DAC
BF
No replacement part available.
サービス部品供給なし
to
GUI 2/2
to DIGITAL_CB64
P
age 122
G2
to DIGITAL_CB45
P
age 121
F1
to DIGITAL_CB28
P
age 120
L4