Yamaha DSP-AZ2 Service Manual

RX-V3300/DSP-AZ2
A
1
2
3
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9
BCDEFGH I J KL
78
SCHEMATIC DIAGRAM (VIDEO)
★ 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.
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
4Y8
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 CVOUTCTRL2
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
address
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
DR6dB
DR6dB
DR6dB
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
Y4Y5Y6
12
Y3
2 515
Y2
IN/OUT
14
Y1
13
Y0
COMMON
OUT/IN
6INH
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
9INH
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
75Ω 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
DR6dB
DR6dB
DR6dB
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
DR6dB
DR6dB
DR6dB
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
75Ω
Driver
6dB
AMP
BIAS
75Ω
Driver
6dB
AMP
BIAS
75Ω
Driver
6dB
AMP
BIAS
REF
IC751, 753~755: 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
Page 77
to OPERATION (4)
I2
Page 76
to FUNCTION
C8Page 76
to FUNCTION
C8
Page 76
to FUNCTION
D8
Page 76
to FUNCTION
C-INPUT SELECTOR
Y-INPUT SELECTOR
C-REC OUT SELECTOR
Y-REC OUT SELECTOR
SYNC SIGNAL DETECTOR
S-SIGNAL DETECTOR
ON
SCREEN
INPUT
SELECTOR
REC OUT/
ZONE2
SELECTOR
Y
SELECTOR
Cb
SELECTOR
Cr SELECTOR
GRAY COLOR/
SUPER IMPOSE
D4-VIDEO
SELECTOR
to OPERATION (3)
I5
Page 77 H6
15
3
1
2
10
11
12
13
7
8
4
6
2
15
1
4
5
3
8
9
6
Point 3 Pin 3 of IC610
6
1312111098
7
542
14
13
4
8
4
1
14
3
2
3
7
3
5
6
2
5
1
4
15
14
13
3
6
2
5
1
4
15
14
13
3
6
2
5
1
4
15
14
13
3
6
4
56
3
8
1
2
6
4
7
5
1
32
12
14 13
2
5
1
4
15
14
13
2
6
5
12
13
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
0.6
4.5
0.8
1.1
0
0.3
1.3
0.2
0.80.8
0.8
0.7
0.7
4.9
4.9
0
0
0
1.3
0.7
0
0.7
1.1
0.6
0
-5.0
0
0.5
0
4.8
0
0
0
0
0
4.8
0
0
0
0
0
4.9
0
0
0
4.9
0.8
0
3.5
3.5
0
0
4.9
0
0
0
0
0
-5.0
0
0
0
0
0
0
4.8
0
0
4.9
0
0
0
0
-5.0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4.9
0
0
4.7
4.9
0
0
0
5.0
0
0
5.0
4.9
0
0
5.6
4.9
0
0
4.9
5.0
5.0
4.9
5.6
0
11.5
0
0
0
0
0
0
0
0
0
0
-4.9
0
4.8
4.7
0
0
0
0
0
0
0
0
0
0
0
0
-4.9
04.8
4.7
0
0
0
0
0
0
0
0
0
0
0
0
-4.9
04.8
4.7
0
0
0
0
0
0
0
0
0
0
0
00
0
0
4.7
0
0
0
-4.9
0
0
00
0
00
0
0
-4.9
0
4.8
4.7
0
0
0
0
4.7
4.7 0 0 0.8 1.2 4.3 4.3 4.7
0
00000 -4.9 0
4.7
-0.8
-0.8
0.1
4.7
0.7
0.7
4.7
0
0.70.07
4.7
1.2
3.7
0
-4.9
4.7
-0.1
4.7
-0.1
-0.1
-4.9
-4.7
-0.1
4.7
-0.1
-0.1
0
4.7
0
3.9
0
0
-4.9
0
0
-4.9
-4.9
0
0
3.5
0
0
-4.9
0
0
0
0
4.7
-4.9
-4.9
4.7
-0.1
0
0
-0.1
-0.1
-4.6
4.7
0
3.7
0 0
-4.9
0
0
4.3
4.7
4.3
4.7
00
-4.9
0
0
0
0
0
0
0
00
0 0
4.7 1.9 0.9
0
4.7
0
4.7 4.7 4.7
0
2.4
2.4
0
2.4
2.4
4.7
4.7
4.8 4.8 4.7
0.9
4.0
4.0
4.7
1.6
0
-5.0
0
0
0
0
0
4.8
0
0
0
0
0
0
05.8
2.5
0
0
0
4.7
0
4.3
0.9
-0.6
0.7
-0.5
0.5
-0.1
-0.6
0
0.2
0
0
2.5
2.5
4.7
4.7
3.7
4.2
0
2.5
2.5
4.7
5

Yamaha DSP-AZ2 Specifications

General

Brand	Yamaha
Model	DSP-AZ2
Category	Amplifier
Language	English