Schematic Diagram - Yamaha RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530RX-V430 Service Manual

A B
SCHEMATIC DIAGRAM (VIDEO) RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530 only
1
2
3
Y SELECTOR
0
0
4
Cb SELECTOR
0
0
5
Cr SELECTOR
0
6
0
7
8
9
C D E
Page 68 A4
to FUNCTION (4)
0
0.7
0
5.0
0
-5.0
0 0
-5.0
0
0 0
-5.0
0
5.0 0
0
0
0
0 5.0 0
0
0
0 5.0 0
0
F G
5.0
IC902: MM74HC4053SJX
Triple 2-Channel Analog Multiplexer
IN/OUT
VCC CY CX BY BX AY AX
16 3 5 1 2 13 12
TO
OUT/IN
Logic AX or AY
Binary to 1
Level
A 11 of 2 Decoders YG
Conversion
with INHBIT
Logic TG
B 10 OUT/IN
Level
Conversion Binary to 1 BX or BY
of 2 Decoders TB
with INHBIT
Logic
C 4 Level
Conversion TC
OUT/IN
Binary to 1 CX or CY
Logic
INH 9 Level of 2 Decoders TG
with INHBIT
Conversion
8 7
GND VSS
H I J
RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530
RX-V430/RX-V430RDS/HTR-5540/HTR-5540RDS/DSP-AX430
Page 68 A2
to FUNCTION (4)
C-INPUT SELECTOR
Y-INPUT SELECTOR
11.9
6.4 6.4 6.5
5.7
7.0
11.9
7.4
0
11.9
7.0 7.0 6.4
6.4
6.4
11.9
7.4
0
# 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.
K L
IC801, 802: LA7956
Video Switch
6dB
AMP
4 INPUT 1 OUTPUT
DRIVER CONTROL
VIDEO SWITCH
1 2 3 4 5 6 7 8 9
VIDEO A B VIN1 GND VIN2 VCC VIN3 VIN4
OUT
IC901: LA7104M
Video Amp
VIN1+ 1 16 +VCC
NFB1 2 6dB DR 15 VOUT1
3
MUTE1 14 GND
VIN2+ 4 13 VOUT2
6dB DR
NFB2 5 12 DR CTL
-VCC1 6 11 VOUT3
VIN3+ 7 MUTE2
6dB DR 10
NFB3 8 9 -VCC2
71