Yamaha DSP-AX1/RX-V1 Service Manual page 84

A B
DSP-AX1/RX-V1
SCHEMATIC DIAGRAM (SUB TRANS)
1
0
0
0
0.6
0.6
0
0
2
0
0
0.6
0
0
0
0
3
0
0
0 0
0
0 0
0
0
0
0
0
0
0
0
0
0
0
0
4
0
0
0
0
0
0
0
0
5
6
IC111, 112 : TC74HC4051AP
Analog Multiplexer/Demultiplexer
INHIBIT VDD
6 16
A
11
LEVEL BINARY TO 1-OF-8
B 10
CONVERTER DECODER WITH INHIBIT
C 9
VSS
VSS 8
VEE
VEE 7
X0 13 SW
X1 SW
14
X2 15 SW
X3 SW X
12 3
7
X4 1 SW
X5
5 SW
X6 2 SW
X7 4
SW
INPUT STATES
"ON" CHANNEL (S)
C B A
INHIBIT
0 0 0 0 0
0 0 0 1 1
0 0 1 0 2
0 1 1 3
0
0 1 0 0 4
0 1 0 1 5
0 1 1 0 6
1 1 1 7
0
1 X X X NONE
8
E-99/J-91
C D E
P-E96/J88
E-1
4.9
4.7
4.7
0 0.5
0 0.5
4.9
0.5
0.5
4.9
0.5
0.5
IC901~903 : TC74HC4052AP IC113 : TC74HC4053AP
Analog Multiplexers/Demultiplexers Triple 2-Channel Multiplexer/Demultiplexer
INHIBIT VDD VDD
6 16
LEVEL BINARY TO 1-OF-4
A 10
CONVERTER DECODER WITH INHIBIT
B 9
A 11
8
7
X0 12 SW
B 10
X1
14 SW
X
13
X2 15 SW
X3 11 SW C
9
Y0 SW
1
Y1 5 SW
3 Y
INH 6
Y2 2 SW
Y3 4 SW
8
INHIBIT B A
VSS
0 0 0 0x, 0y
0 0 1 1x, 1y CONTROL INPUTS
0 1 0 2x, 2y INHIBIT C B
(Pin 6) (Pin 9) (Pin 10)
0 1 1 3x, 3y
L L L
1 X X NONE
L L L
L L H
L L H
L H L
L H L
L H H
L H H
H * *
* Don't Care
F G
P-E95/J87
E-1
P-E97/J89
F-2
0
0 0
0
0
0
0
0
0
4.9
0
0
0
0 4.9
0
-4.9 0
0
0 0
0
0
0
4.9
0
0
4.9
0
-0.1
-0.1 0
-4.9 0
-0.2
0 0 0
-0.1
4.9
-0.2
0
-0.1
0 4.9
-0.2
-4.9 0
0
0 0
4.9
0
0 0
4.8
0 0
4.8
0 0 -4.9
0
1.4 0 0
-4.9
1.4
IC114 : LA7108M
Ω
75 Video Driver
VIN1+
1
16
NFB1 2 6dB DR
14 X-COMMON
MUTE1 3
OUT C IN 12 OX
OUT C IN 13 IX
VIN2+ 4
OUT C IN 2 OY
NFB2 6dB DR
5
IY
OUT C IN 1
–VCC1
6
OUT C IN 5 OZ
OUT C IN 3 IZ VIN3+ 7
4 Z-COMMON
NFB3 8 6dB DR
Y-COMMON
15
7
VEE
"ON" CHANNEL
A 0X (Pin 12), 0Y (Pin 2), 0Z (Pin 5)
(Pin 11) 1X (Pin 13), 1Y (Pin 1), 1Z (Pin 3)
L 0X, 0Y, 0Z
H 1X, 0Y, 0Z
L 0X, 1Y, 0Z
H 1X, 1Y, 0Z
L 0X, 0Y, 1Z
H 1X, 0Y, 1Z
L 0X, 1Y, 1Z
H 1X, 1Y, 1Z
* NOTE
H I
CIRCUIT CHANGES BY MARKET.
+VCC
16
15 VOUT1
14 GND
13 VOUT2
MUTE2
12
VOUT3
11
10 MUTE3
9 –VCC2
J K L
X : NOT USED
O : USED
* 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.