Yamaha RX-V465 Service Manual page 119

A B C
VIDEO 1/3
1
Page 121 G6
to VIDEO (8)_CB354
(J model)
2
AV 1
COMPONENT
VIDEO
3
CB301
AV 2
4 AV 3
AV 4
VIDEO
AV 5
AV 6
5
AV OUT
6
7
8
COMPONENT
VIDEO
MONITOR
OUT
9
0
0
VIDEO
10
D E F
IC301
IC301
5.0
0
0
-4.9 0
0 0
COMPONENT
INPUT SELECTOR
0
IC305
0
0
0
0
0
0
5.1 0
3.4 0
0
0
0 0
0 5.1
0
0
0 0
0 5.1
EXTERNAL I/O PORT
0 0
0
-4.9
0
0
0 0
0 0
0 0
0 0
0
5.0
OUTPUT AMP
VIDEO
INPUT SELECTOR
0
0
0 -4.9
5.0 0
0 -4.9
5.0 0
0 -4.9
5.0 0
0
IC305
0
G H
IC309
5.1
5.1
0
IC310
0 0
IC304
0
IC310
0 0
0
0
IC310
0 0
0 0
-4.9
IC305
-0.2
-0.9
-4.9
IC302
IC302
IC302
IC301
I J K
0 0 0
0 0 0 0 0 0
Page 116 G7
to OPERATION (2)_CB459
CB303
CB304 CB305
VIDEO (1)
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★ Components having special characteristics are marked
and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
L M N
RX-V465/HTR-6240/AX-V465
IC303: TC74HC4053AF
Analog multiplexer/demultiplexer
INHIBIT VCC
6 16
A 11
LEVEL
BINARY TO 1-OF-8
B
10 CONVERTER DECODER WITH INHIBIT
C 9
GND 8
VEE 7
0X 12 SW
14 X-COM
1X 13 SW
0Y 2 SW
15 Y-COM
1Y 1 SW
0Z 5 SW
4 Z-COM
3 SW
INPUT STATES
"ON" CHANNEL (S)
INHIBIT C B A
0 0 0 0 0X, 0Y, 0Z
0 0 0 1 1X, 0Y, 0Z
0 0 1 0 0X, 1Y, 0Z
0 0 1 1 1X, 1Y, 0Z
0 1 0 0 0X, 0Y, 1Z
0 1 0 1 1X, 0Y, 1Z
0 1 1 0 0X, 1Y, 1Z
0 1 1 1 1X, 1Y, 1Z
1 X X X NONE
IC306: NJM2581M
IC305: LA73050-TLM-E
Video amplifier
6-channel 75 ohms video driver
6dB 75
VIN1 1 Driver 14 V+1
AMP
BIAS
NEE1 2 13 VOUT1
6dB 75
VIN2 3 12 V+2
AMP Driver
BIAS
VEE2 4 11 VOUT2
VIN3 6dB 75 V+3
5 AMP Driver 10
BIAS
VEE3 6 9 VOUT3
PowerSave 7 REF 8 GND
IC307: TC74HC4051AFEL
8-channel analog multiplexer/demulitiplexer
COM
OUT C IN 0
1
A
2
3
B
4
5
C
6
OUT C IN 7
INH
4 1 16 Vcc
6 2 15 2
COM 3 14 1
7 4 13 0
5 5 12 3
INH 6 11 A
V 7 10 B
EE
GND 8 9 C
IC308: LC709004A-TLM-E
I/O-expander for microcontroller
DIN 2 Serial/parallel converter/shift register 14 DOUT
CLK# 3 15 VDD
19 VSS
CS# 4
RES# 21 I/O control/output register
port 0 I/O buffer port 1 I/O buffer
24 17 15 8
IC310: FHP3350IM14X
Triple voltage feedback amplifier
NC or DISABLE1
1 14 OUT2
2
NC or DISABLE2 13 -IN2
3 12
NC or DISABLE3 +IN2
+Vs 4 11 -Vs
+IN1 5 10 +IN3
-IN1 6 9 -IN3
OUT1 7 8 OUT3
● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
● 印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
パーツリストに記載されている部品を使用してください。
● 本回路図は標準回路図です。改良のため予告なく変更することがございます。
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