Yamaha DSP-AX763 Service Manual page 114

A B C
RX-V663/HTR-6160/DSP-AX763
VIDEO 1/2
1
2
3
JK301
4
5
JK302
6
7
JK303
INPUT
SELECTOR
8
9
MONITOR OUT
10
# All voltages are measured with a 10MΩ/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.
114
D E F
11.5
0 0
IC331
0
0
0
IC331
0
-11.9
5.0
0.2 0
-4.8
5.0
5.0 0
0
0.7
0.1 0
-4.8
0.7
0 0
0 0.7
0.1 0
0.1 0
4.9 0
0.2 0
-4.8
5.0
5.0 0
0.1 0 0.9
0.1
0 0.2
0.1 0
0.1 0 -4.8
4.9 0
0
0.9
IC333
0 0.2
0 5.0
-4.8
0
IC333
0.5 0
5.0
0
0.9
0
IC333
5.0 0 0.2
-4.8
0.2 0
9.0 -4.8
0.9
9.0 0
0.4
0.7
0 0
0 0
0 0
0 0
9.1 0
0.9
0.4
0.4
0 BYPASS SW
0
IC333
5.0 0
0
IC333
0.5 5.0 0
0.9
0.4
0 0.4
0
IC333 0
5.0
RECOUT AMP
0
IC332
0 5.0 0
0
0 0 IC332 0
0
0
IC332
0 5.0 0
0
IC332
0 0
0 0
IC332 0 OUTPUT AMP 0 IC332 0
0 5.0 0
G H I
CB302
Page 110 A5
to FUNCTION (1)_W2503
IC332 IC333
J K
4.6 4.6
4.6
4.6
0
IC305
CB303
Page 113 K9
to MAIN (2)_W114
9.0 5.0
CB304
4.9
Page 111 B5
9.0 5.0
to FUNCTION (6)_CB296
4.9
0.2 0.2
4.9
Page 109 E2
to DIGITAL_CB80
CB305
IC332, 333: LA73050-TLM-E
6-channel 75-ohm video driver
VIDEO (1)
L M N
IC301: TC4051BF
Multiplexer/demultiplexer
VDD
16
13 0
I/O c O/I
A 11 I/O c O/I 14 1
I/O c O/I 15 2
I/O c O/I 12 3
B 10
4
I/O c O/I 1
C 9 I/O c O/I 5 5
I/O c O/I 2 6
6
INH I/O c O/I 4 7
3 COMMON
8 7
VSS VEE
IC302, 303: TC74HC4051AFEL
8-channel analog multiplexer/demulitiplexer
COM
OUT C IN 0
1
A
4 1 16 Vcc
2
6 2 15 2
3
B COM 3 14 1
4
7 4 13 0
5 5 5 12 3
C
6 INH 6 11 A
V 7 10 B
OUT C IN 7 EE
INH
GND 8 9 C
IC304: TC74HC4053AF
Analog multiplexer/demultiplexer
INHIBIT VCC
6 16
INPUT STATES
A 11
"ON" CHANNEL (S)
LEVEL BINARY TO 1-OF-8
INHIBIT C B A
B 10 CONVERTER
DECODER WITH INHIBIT
0 0 0 0 0X, 0Y, 0Z
C 9
0 0 0 1 1X, 0Y, 0Z
8
GND
0 0 1 0 0X, 1Y, 0Z
7
VEE
0 0 1 1 1X, 1Y, 0Z
12 SW
0X
14 X-COM 0 1 0 0 0X, 0Y, 1Z
13 SW
1X 0 1 0 1 1X, 0Y, 1Z
2 SW
0Y 0 1 1 0 0X, 1Y, 1Z
15 Y-COM
0 1 1 1 1X, 1Y, 1Z
1Y 1 SW
0Z 1 X X X NONE
5 SW
Z-COM
4
3 SW
IC305: NJM2388F09
Low dropout voltage regulator with ON/OFF control
V
IN V
OUT
Bandgap
Reference
ON/OFF
Cont
control
Over Voltage Thermal Over Current
Protection Protection Protection
GND
IC331: NJM4565M
Dual operational amplifier
V+
8
2, 6
–INPUT OUTPUT
1, 7
+INPUT
3, 5
V–
4