Yamaha DSP-AX763, Service Manual

Page: 115 / 155

CB356
CB355
IC392
IC383
IC384
CB351
CB352
CB353
CB354
IC392
IC392
IC392
IC351
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V663/HTR-6160/DSP-AX763
115
★ All voltages are measured with a 10M Ω /V DC electronic voltmeter.
★
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.
VIDEO 2/2
0
0
0
4.8 9.0
0.4
0.4
0 0
4.9 4.9
0
0.4
0.4
9.0
9.0
9.0
9.0
0
0
0
9.0
9.0 0 0 9.0 0
0
0
0
0.6
0.6
0
0
0
0
0.6
0
5.0
0
5.0
0
5.0
-4.9
0
-4.9
0
-4.9
0
3.7
4.4
4.5
4.5
4.3 3.7
3.7
4.3
4.5
4.5
4.3
3.7
3.7
4.3
4.2
4.3
4.3
3.7
IC351 : NJM2581M
Video amplifier
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
Driver
6dB
AMP
BIAS
75
Driver
6dB
AMP
BIAS
75
Driver
6dB
AMP
BIAS
REF
6dB
6dB
6dB
6dB
6dB
6dB
I
2C BUS
Y/R IN1
Y/R IN2
Y/R IN3
Y/R IN4
Pb/G IN1
Pb/G IN2
Pb/G IN3
Pb/G IN4
Pr/B IN1
Pr/B IN2
Pr/B IN3
Pr/B IN4
Y/R OUT1
Y/R OUT2
Pb/G OUT1
Pb/G OUT2
Pr/B OUT1
Pr/B OUT2
ADDRESS
SDA
SCL
V+
GND
AUX 0
AUX 1
AUX 2
AUX 3
PORT 0
PORT 1
PORT 2
PORT 3
VREF
BIAS
DGND
V
+
GND
V+
Pb IN2 Pr IN2
Y IN1
Pb IN1 Pr IN1
PORT3
V+
ADR
PORT2
GND
SCL
SDA
DGND
VREF
V+
Pr OUT2
PORT1
PORT0
Pb OUT2
1 14
38 25
39 24
48 15 Y IN2
GND
Pr IN3
V+
Pb IN3
GND
Y IN3
V+
Pr IN4
GND
GND
AUX0 AUX1 Y OUT2 AUX2 AUX3 Pr OUT1 GND Pb OUT1 GND Y OUT1 V+ Y IN4 V+ Pb IN4
GND
IC392 : NJW1321FP1
Wide band video switch with I
2
C bus
IC383 : 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
INPUT
SELECTOR
VIDEO (2)
OUTPUT AMP
COMPONENT
SELECTOR
SELECTOR
D5 VIDEO
COMPONENT VIDEO
(J model)
to DIGITAL_CB81
Page 109 G2
to FUNCTION (6)_CB297
Page 111 C5