Yamaha RX-Z9 Service Manual page 141

A B C
SCHEMATIC DIAGRAM (VIDEO TOP 2/2)
1
2
0 4.8
0 0
0 0
0
0 0
0
0.7
-4.8 0.7
0 0.7
0 4.8
0 0
3 0 0
0
0 0
0 0.7
-4.8 0.7
0
0.7
4.7
0
0
0
4
0
0
0
-4.8
0
-0.1
0
4.0
0
0 0
-0.1
0
0
5 4.0
0
-0.1
0
3.8
0 0
0
0
0
0
3.8
0 0
0
6 0
0 0
3.8
0
0
0
3.8
7
8
IC81, 103 : TC74HC238AF IC43, 44 : TC74HC4051AFEL
3 to 8 Line Decoder/Demultiplexers Analog Multiplexers/Demultiplexers
OUTPUT INHIBIT VDD
6 16
V Y Y Y Y Y Y Y
DD 0 1 2 3 4 5 6
A 11
16 15 14 13 12 11 10 9
LEVEL BINARY TO 1-OF-8
B 10
9 CONVERTER DECODER WITH INHIBIT
C 9
Y 0 Y 1 Y 2 Y 3 Y 4 Y 5 VSS 8
VEE 7
A Y X0 13 SW
6
X1 14 SW
B C G 2A G 2B G 1 Y 7
X2 15 SW
X3 12 SW 3 X
1 2 3 4 5 6 7 8
X4
1 SW
A B C G 2A G 2B G 1 Y 7 V SS
X5
5 SW
OUTPUT
SELECT ENABLE X6 2 SW
X7
4 SW
INPUT
OUTPUT
ENABLE SELECT
INPUT STATES
"ON" CHANNEL (S)
G1 G2* C B A Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 INHIBIT C B A
X H X X X L L L L L L L L
0 0 0 0 0
L X X X X L L L L L L L L
0 0 0 1 1
H L L L L H L L L L L L L
0 0 1 0 2
H L L L H L H L L L L L L
0 0 1 1 3
H L L H L L L H L L L L L
10 H L L H H L L L H L L L L 0 1 0 0 4
0 1 0 1 5
H L H L L L L L L H L L L
H L H L H L L L L L H L L 0 1 1 0 6
H L H H L L L L L L L H L 0 1 1 1 7
X
H L H H H L L L L L L L H 1 X X NONE
G2* = G2A + G2B
H : HIGH L : LOW X : H or L
D E F
IC46 : LA7108M-TLM
75Ω Video Driver
VIN1+ 1 16 +VCC
NFB1 VOUT1
2 6dB DR 15
MUTE1 3 14 GND
VIN2+ 4 13 VOUT2
NFB2 5 6dB DR 12 MUTE2
—VCC1 6 11 VOUT3
VIN3+ MUTE3
7 10
NFB3 8 6dB DR 9 —VCC2
4.8
0
-4.8
-4.8 IC47 : LA7104M
6dV Amp & Driver
VIN1+ +VCC
1 16
NFB1 2 6dB DR 15 VOUT1
4.8
MUTE1 GND
3 14
0
-4.8 VIN2+ 4 13 VOUT2
NFB2 6dB DR 12 DR CTL
-4.8 5
–VCC1 VOUT3
6 11
VIN3+ 7 10 MUTE2
4.8 NFB3 6dB DR –VCC2
8 9
0 0
-4.8 0.5
0 0.5 IC45, 60–64, 82–86 : OPA2652U
Dual OP-Amp
OUT 1 8 +V
1 CC
–IN 2 7 OUT
1 2
+ – + –
+IN 3 6 –IN
1 2
–V CC 4 5 +IN 2
EUROPE
IC106, 107 : TC74HC4052AF IC48, 104, 105 : TC74HC4053AF (EL)
Analog Multiplexers/Demultiplexers Analog Multiplexers/Demultiplexers
VDD
INHIBIT VDD
16
6 16
A LEVEL BINARY TO 1-OF-4
10
CONVERTER DECODER WITH INHIBIT
B 9
A 11 OUT C IN
VSS 8
VEE 7
OUT C IN
X0
12 SW
B 10 OUT C IN
X1 14 SW
X
13
X2 15 SW OUT C IN
X3 11 SW
C 9
OUT C IN
Y0 1 SW
OUT C IN
Y1 SW
5
3 Y
INH
Y2 2 SW 6
Y3
4 SW
8 7
VSS VEE
INHIBIT B A
0 0 0 0x, 0y
0 0 1 1x, 1y
0 1 0 2x, 2y CONTROL INPUTS "ON" CHANNEL
INHIBIT C B A 0X (Pin 12), 0Y (Pin 2), 0Z (Pin 5)
0 1 1 3x, 3y
1 X X NONE (Pin 6) (Pin 9) (Pin 10) (Pin 11) 1X (Pin 13), 1Y (Pin 1), 1Z (Pin 3)
L L L L 0X, 0Y, 0Z
L L L H 1X, 0Y, 0Z
L L H L 0X, 1Y, 0Z
L L H H 1X, 1Y, 0Z
L H L L 0X, 0Y, 1Z
L H L H 1X, 0Y, 1Z
L H H L 0X, 1Y, 1Z
L H H H 1X, 1Y, 1Z
H * * * NOTE
* Don't Care
G H
4.7 -4.8
-0.1 0 0 2.3 1.5
-0.1
0 0.5
0
2.0 1.5
0.5
2.0 1.5
0.5
2.3 1.5
0.5
4.7 -4.8
-0.1 0 0 2.0 1.5
-0.1
0 0 0.5
2.0 1.5
0.5
0
2.3
0.5
2.0 0
0.5
4.7 -4.8
2.0 0
-0.1 0 0
-0.1
0 0 0.5
0 0
0
0 1.5
1.5
0
4.6
0.2 1.5
0
0.1 1.5
0
4.7
1.5
1.5
1.5
0.1 1.5
1.5 0
0
0
0
0
0
0.1 1.5 -4.8
0
0.1 1.5
0
4.6
1.5
1.5
1.5
0.1 1.5
1.5 0.8
0
0
0.1 1.5
0
1.5
1.5
1.5
-4.8
0.1 1.5 1.5 0.1
0
0
0.1 1.5 0 0
0 0 0 4.8
4 8
0 4.8
4 8
0 4.8
4 8
0.1 1.5
0 0 4.8
4 8
0 4.8
4 8
0 4.8
4 8
0.1 1.5
0 0 4.8
4 8
0 4.8
4 8
1.5 0
0.1 4.8
4 8
4.8
0
4.8
4 8
0 4.8
4 8
1.5 0
0.1 4.8
4 8
4.8
0 4.8
4 8
0
4.8
4 8
0.1 1.5 0 4.8
4 8
4.8
0 4.8
4 8
0 4.8
0.1 1.5 4 8
4.8 0 4.8
4 8
1.5 1.5
0.6 4.8
4.8 4.8
0.6
0.6
4.8
0 0
0
4.8 0
1.5 0 0
1.5
0 0
4.8
14 X-COMMON
12 OX
IX
13
2 OY
1 IY
5 OZ
3 IZ
4 Z-COMMON
15 Y-COMMON
I J K
IC65–80, 87–102, 111–114 : NC7WB66K8X
Dual Analog Switch
1A 1 8 VCC
1B 2 7 OE1
OE2 3 6 2B
GND 4 5 2A
0
1.5 0
4.6
1.5 0
4.6
L M N
RX-Z9/DSP-Z9
* All voltages are measured with a 10M Ω /V DC electronic 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.
141