Yamaha DSP-AX1300, Руководство по обслуживанию

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RX-V2300/DSP-AX2300/RX-V1300/RX-V1300RDS/HTR-5590/DSP-AX1300
A
1
2
3
4
5
6
7
8
9
B C D E F G H I J K L
88
SCHEMATIC DIAGRAM (VIDEO)
★
All voltages are measured with a 10M
Ω
/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.
x: NOT USED
O: USED / APPLICABLE
IC601, 611: TK15420M
Video Amp
– +
1
2
3
4 5
– +
6
7
8 OUT A
–IN A
+IN A
VEE
VCC
OUT B
–IN B
+IN B
IC608: TC74HCU04AFEL
Hex Inverters
1A
1Y
2Y
VCC
6A
1
2
3
4 11
2A 6Y
5A
12
13
14
3A
3Y
5Y
4A
5
6
7 4Y 8
9
10
GND
IC705: BU2092
Serial In/Parallel Out Driver
1 Vss
2 DATA
3 CLOCK
4 LCK
5 Q0
6
Q1
7
Q2
8 Q3
9 Q4
18 VDD
17 OE
16 Q11
15 Q10
14 Q9
13
Q8
12
Q7
11 Q6
10 Q5
Control
Circuit
Output Buffer (Open Drain)
Latch
12 Bit Shift Register
IC610: LC74781-9798
On Screen Display Controller
CS 9
RST 23
VSS1 1
SIN 11
SCLK 10
OSCIN 6
OSCOUT 7
SYNIN 17
SEPC 18
SEPOUT 19
CHARA 8
VDD2 12
SEPIN 20
CTRL3 22
4
CTRL1 XtalIN XtalOUT BLANK CVIN CVOUT CTRL2
21 2 3 5 15 13
VDD1 24
Serial
parallel
converter
8-bits
latch
+
command
decoder
Horizontal
character
size
register
Horizontal
size
counter
Horizontal
display
position
register
Horizontal
dot
counter
Vertical
display
position
register
Vertical
dot
counter
Blinking
and inversion
control
register
Blinking
and inversion
control
circuit
Blinking
and inversion
control
register
Blinking
and inversion
control
register
Character
control
counter
Line
control
counter
Timing generator
Synchronization
signal generator
Character output control
Background control
Video output control
Display
control
register
RAM
write
adress
counter
Display
RAM
Vertical
character
size
register
Vertical
size
counter
Decoder
Font
RAM
Shift
register
Decoder
Horizontal
character
size
register
Horizontal
character
size
register
Horizontal
character
size
register
Horizontal
character
size
register
15 VOUT1
13
VOUT2
11
VOUT3
10 MUTE3
9 -VCC2
12
MUTE2
16 +VCC
14 GND
2
NFB1
4
VIN2+
6 -VCC1
7
VIN3+
8
NFB3
5
NFB2
1 VIN1+
3
MUTE1
DR 6dB
DR 6dB
DR 6dB
IC701: LA7108M
Video Amp
I 2 C Bus Interface
Output
Data Latch
8
Output Data
Reset
Input Data
I/O Port
Shift Register
3 SDA
1 SO
16
CS0
15
CS1
14
CS2
12
D7
11
D6
10
D5
9
D4
7
D3
6
D2
5
D1
4
D0
2 SCL
8
GND
13 VDD
IC582: M62320FP
I/O Expander
8
I/O Setting
Register
8
Input/Output
8
I/O Setting
Register
8
8
Power On
Reset
IC602~605: MM74HC4051N
IC702, 703: MM74HC4051SJX
8-Channel Analog Multiplexer
16
11
10
9
7
VSS
8
GND
C
B
A
VCC
4
Y7
1
Y4 Y5 Y6
12
Y3
2 5 15
Y2
IN/OUT
14
Y1
13
Y0
COMMON
OUT/IN
6
INH
Logic
Level
Conversion
Binary to 1
of 2 Decoders
with INHBIT
TG
TG
TG
TG
TG
TG
TG
TG
3
IC606, 607: MM74HC4053N
IC612, 704: MM74HC4053SJX
Triple 2-Channel Analog Multiplexer
16
11
10
4
7
OUT/IN
AX or AY
VSS
8
GND
C
B
A
VCC
3
CY
5
CX
1
BY
2
BX
IN/OUT
13
AY
12
AX
TO
Logic
Level
Conversion
Logic
Level
Conversion
Logic
Level
Conversion
OUT/IN
CX or CY
OUT/IN
BX or BY
9
INH
Logic
Level
Conversion
Binary to 1
of 2 Decoders
with INHBIT
Binary to 1
of 2 Decoders
with INHBIT
Binary to 1
of 2 Decoders
with INHBIT
YG
TG
TB
TC
TG
IC609: LA7109
75
Ω
Video Driver
35 VOUT1
33 VOUT2
31 VOUT3
30 MUTE4
29
-VCC4
32 DR CTL2
36
+VCC1
34 GND
2
NFB1
4 VIN2+
6
-VCC1
7
VIN3+
8 NFB3
28
N.C.
27
N.C.
26 +VCC2
9 N.C.
10 N.C.
11 VIN4+
5 NFB2
1
VIN1+
3
MUTE1
DR 6dB
DR 6dB
DR 6dB
25 VOUT4
23 VOUT5
21
VOUT6
20 MUTE3
19 -VCC3
22 DR CTL1
26
24 GND
12
NFB4
14
VIN5+
16 -VCC2
17
VIN6+
18
NFB6
15 NFB5
11
13
MUTE2
DR 6dB
DR 6dB
DR 6dB
IC752: NJM2581M
Video Amp
13
VOUT1
11
VOUT2
9 VOUT3
8 GND
10 V+3
14 V+1
12
V+2
2 NEE1
4
VEE2
6
VEE3
7
PowerSave
5 VIN3
1 VIN1
3 VIN2
75
Ω
Driver
6dB
AMP
BIAS
75
Ω
Driver
6dB
AMP
BIAS
75
Ω
Driver
6dB
AMP
BIAS
REF
IC751, 753, 754: TC74HC4052AF
Analog Multiplexer/Demultiplexer
16
VCC
6
INH
10
A
9
B
8
GND
7 VEE
12
0X
14
1X
15
2X
11
3X
1
0Y
5 1Y
2
2Y
4
3Y
LEVEL
CONVERTER
BINARY TO 1-OF-4
DECODER WITH INHIBIT
SW
SW
SW
SW
SW
SW
SW
SW
13
X-COM
3
Y-COM
INHIBIT
0
0
0
0
1
B
0
0
1
1
X
A
0
1
0
1
X
0x, 0y
1x, 1y
2x, 2y
3x, 3y
NONE
P
age 86
to OPERA
TION (4)
J6
Page 84
to FUNCTION
C8 Page 84
to FUNCTION
C8
P
age 84
to FUNCTION
D8
P
age 84 to FUNCTION
I5
C-INPUT SELECTOR
Y-INPUT SELECTOR
C-REC OUT SELECTOR
Y-REC OUT SELECTOR
SYNC SIGNAL DETECTOR
S-SIGNAL DETECTOR
ON
SCREEN
REC OUT/
ZONE2
SELECTOR
INPUT
SELECTOR
Y
SELECTOR Cb
SELECTOR
Cr SELECTOR
Page 86
to OPERATION (3)
H5
RX-V2300/DSP-AX-2300
YP00385
0
0
0
0
0
-5.0 4.9
-5.0
0
-5.0
0
-5.0
0
0
0
4.9
0
4.9
0
4.9
0
4.9
0
0
0
0
0
4.8
0 0
0 0
0
4.8
0
-4.8
0
4.8
0
0
3.5
3.5
0
0
4.8
0
0
0
0
0
-4.8
0
0
0
0
0
0
4.8
0
0
4.8
0
0
0
0
0
-4.8
0
0
0
0
0
0
4.8
0.2
0
4.8
0
-4.8
0
0 0
0
0
0 0
0
0 0
0
0.7
0
0
0
0
4.8
4.8
0
3.8 0.7
0
4.8
0
3.5 3.5
0
4.8
4.8
0.2
0
4.8
0 0
4.8
0
-4.8
4.8
0.2
0.2
0
0
0
0
0
0
0
0
0
0
-4.8
0 4.8
4.7
0.2
0.2
0
0
0
0
0
0
0
0
0
0
-4.8
0 4.8
4.7
0.2
0.2
0
0
0
0
0
0
0
0
0
0
-4.8
0 4.8
4.7
0.2
0.2
0
-4.8
0 4.8
4.7
0.2
0.2
0
0
0
0
0
0
0
0
0
1.0
0.2
4.7 4.7
0.2
0.6
0.6 0.2 0.2 0.2 1.0 4.7
0.7
-4.8
0.2 0.2 0.2 0.2
1.0
0.2
0.2
0.2
0.2
-4.8
0.2
0.2
4.7
0.3
-0.5
0.2
0.2
0.2
0.2
0.4
4.7
1.0
1.0
4.7
1.7
0.5
4.7
0.2
1.7
1.0
1.0
-4.8
4.7
0.1
4.7
0.1
0.1
-4.8
4.7
0.1
4.7
0.1
0.1
0
4.7
0.2
3.5
0.2
0.2
-4.8
0.2
0.2
-4.8
-4.8
0.2
0.2
0.2
3.5
0.2
-4.8
0.2
0.2
0.2
0
4.7
-4.8
-4.8
4.7
0.1
0.1
0
0
-4.8
0
0
4.2
4.7
4.2
4.7
1.0 1.0
-4.8
0
0
1.2 1.2
0.7
0.7
0.2
0.2
0.2
1.7 0.2 4.7 2.0 1.1
0
4.7
0
4.7 4.7 4.7
4.7
2.5
0
4.7 4.8
2.5
4.7
0.2
2.5 2.4
0
-0.7
4.0
4.0
4.7
-0.5
0
0
0
0
0
0
0
4.8
0
0
0
0
0
0
0 5.8
0
0
0
0
0
0
0
4.8
0
0
0
0
0
0
0 5.8
2.6
0
0
0
0
4.7
4.2
1.1
-0.4
0.9
-0.3
0.3
0.1
-0.4
0
0
0
0
2.6
2.6
0
0
3.4
3.8
4.7
2.6
2.5
4.7
s34
4.7K
R693
C1740S (R/S) C1740S (R/S)
33
47/16
R963
1
HV75310 1
HV75310 1
HV75310