Yamaha DSP-AX620 Service Manual

ABCDEFGH
1
2
3
4
5
6
IJKLMNO
7
8
9
10
DSP-AX620
■ SCHEMATIC DIAGRAM (OPERATION 2/2)
* All voltage are measured with a 10MΩ/V DC electric volt meter.
* Components having special characteristics are marked Z and
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
Conditions
• INPUT: DVD auto
• PROGRAM: PRO LOGIC DSP
IC585 : TC74HCUO4AP
Hex Inverters
1A
1Y
2Y
V
DD
6A
1
2
3
4
11
2A 6Y
5A
12
13
14
3A
3Y
5Y
4A
5
6
7
V SS 4Y8
9
10
IC581 : TK15420M
VIdeo Amp
–+
OUT A
–IN A
V EE
V CC
OUT B
1
2
3
4
5
+IN A –IN B
+IN B
– +
6
7
8
IC588 : LA7109
75Ω Video Driver
6dB DR
6dB DR
6dB DR
1
2
3
4
5
6
7
8
36
35
34
33
32
31
30
29
VIN1+
NFB1
MUTE1
VIN2+
NFB2
–VCC1
VIN3+
NFB3
N.C.
N.C.
+VCC1
VOUT1
GND
VOUT2
DR CTL2
VOUT3
MUTE4
–VCC4
N.C.
N.C.
6dB DR
6dB DR
6dB DR
11
12
13
14
15
16
17
18
26
25
24
23
22
21
20
19
VIN4+
NFB4
MUTE2
VIN5+
NFB5
–VCC2
VIN6+
NFB6
+VCC2
VOUT4
GND
VOUT5
DR CTL1
VOUT6
MUTE3
–VCC3
28
27
9
10
IC584, 712 : TC74HC4053AP
Triple 2-Channel Multiplexer/Demultiplexer
16
VDD
LOGIC LEVEL CONVERTER
12
OX
7
VEE
6
INH
OUT C IN
13
IX
OUT C IN
2
OY
OUT C IN
1
IY
OUT C IN
5
OZ
OUT C IN
3
IZ
OUT C IN
4
Z-COMMON
15
14
X-COMMON
Y-COMMON
9
C
10
B
11
A
8
VSS
INHIBIT
(Pin 6)
L
L
L
L
L
L
L
L
H
CONTROL INPUTS “ON” CHANNEL
0X (Pin 12), 0Y (Pin 2), 0Z (Pin 5)
1X (Pin 13), 1Y (Pin 1), 1Z (Pin 3)
0X, 0Y, 0Z
1X, 0Y, 0Z
0X, 1Y, 0Z
1X, 1Y, 0Z
0X, 0Y, 1Z
1X, 0Y, 1Z
0X, 1Y, 1Z
1X, 1Y, 1Z
NOTE
C
(Pin 9)
L
L
L
L
H
H
H
H
*
B
(Pin 10)
L
L
H
H
L
L
H
H
*
A
(Pin 11)
L
H
L
H
L
H
L
H
*
* Don’t Care
IC681 : LA7108M-TLM
75Ω Video Driver
6dB DR
6dB DR
6dB DR
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VIN1+
NFB1
MUTE1
VIN2+
NFB2
–VCC1
VIN3+
NFB3
+VCC
VOUT1
GND
VOUT2
MUTE2
VOUT3
MUTE3
–VCC2
IC711 : LA7104M
Double Scart Interface
6dB DR
6dB DR
6dB DR
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VIN1+
NFB1
MUTE1
VIN2+
NFB2
–VCC1
VIN3+
NFB3
+VCC
VOUT1
GND
VOUT2
DR CTL
VOUT3
MUTE2
–VCC2
LEVEL
CONVERTER
BINARY TO 1-OF-8
DECODER WITH INHIBIT
11
10
9
8
7
6 16
13
SW
SW
SW
SW
SW
SW
SW
SW
14
15
12
1
5
2
4
3
INHIBIT VDD
X
A
B
C
VSS
VEE
X0
X1
X2
X3
X4
X5
X6
X7
IC582, 583, 682 : TC74HC4051AFEL
Analog Multiplexer/Demultiplexer
INPUT STATES
INHIBIT
0
0
0
0
0
0
0
0
1
C
0
0
0
0
1
1
1
1
X
B
0
0
1
1
0
0
1
1
X
A
0
1
0
1
0
1
0
1
X
“ON” CHANNEL (S)
0
1
2
3
4
5
6
7
NONE
2
B
1
A
3
QA
4
QB
5
QC
6
QD
7
V SS
SERIAL
INPUTS
OUTPUT
13
QH
12
QG
11
QF
10
QE
8
CLOCK
14
V DD
OUTPUT
9
RESET
QH QG QF QE RESET
BQAQBQCQD
ACK
IC586 : TC74HC164AF-EL
8-Bit Shift Register
SUPERIMPOSE
S-SIGNAL DETECTOR
INPUT
SELECTOR
S-VIDEO AMP
S-VIDEO AMP
OUTPUT EXPANSION
COMPONENT VIDEO
SELECTOR
VIDEO AMP
INPUT
SELECTOR
–5.0
5.0
–5.0
0
0
0
–5.0
0
0
0
0
0
5.0
0
0
0
0
0
0
5.0
0
0
0
0
0
0
5.0
0
0
0
0
5.0
4.0
4.9
0
0
0
0
0
0
0
0
0
00
5.0
–5.0
0.8
0.8
4.8
1.0
1.0
1.6 1.6
5.0
5.0
0
0
0
0
5.0
5.0
0
0
0
–5.0
0
1.0
–0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
5.0
1.0
0
0
0.7
0
0
0
0
0
0
0
0
0
5.0
–5.0
–5.0
5.0
5.0
–0.1
–0.1
0
0
0
0
0
5.0
0
0
0
0
5.0
0
–5.0
0
5.0
–0.1
1.6
5.0
4.5
4.5
5.0
0
0
–5.0
–5.0
00
000
5.0
4.5
0
0
4.5
4.5
4.5
4.8
5.0
5.0
5.0
5.0
2.7 2.7
2.7
2.7
2.6
2.6
0
0
5.0
4.3
0.9
4.3
–0.8
–0.6
–0.5
–0.6
–0.6
0
–0.5
–0.2
0
0.8
5.0
0 0
0
5.0 5.0 4.9
0
5.0
5.0
2.0 5.0 0.9
0
1.7
0
5.0
0
5.0 5.0 5.0
2.5
4.9
0
0
5.0
2.5
5.0
0
2.6
2.5
0
0 0 0
5.0
1.0
1.7
1.0
1.7
1.0
5.0
–0.6
1.0
4.9
4.9
4.9
5.0
–4.9
5.0
5.0
–4.9
–4.9
0.1
0.1
–0.1
0
–0.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4.9
4.9
4.9
4.9
5.0
5.0
r
CIRCUIT CHANGES BY MARKET.
X : NOT USED
0.22
0.22
R742
R743
D733
D732
D731
UDZS9.1B
W582A
W582B
C639
R677
560
C640
1000P
Point r (Pin 3 of IC587)
V : 1V/div, H : 50 nsec/div
DC, 1 : 1 probe
0V
E-71/J-69
P-E69/J67
M-6
P-E72/J70
K-1
P-E69/J67
G-1
SAME PAGE
J-1
SAME PAGE
D-5
SAME PAGE
J-5
SAME PAGE
K-1
SAME PAGE
F-4
SAME PAGE
K-4

Yamaha DSP-AX620 Specifications

General

Brand	Yamaha
Model	DSP-AX620
Category	Amplifier
Language	English