Yamaha RX-Z9, Service Manual

Page: 141 / 190

A B C D E F G H
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I J K L M N
7
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10
141
RX-Z9/DSP-Z9
0
0
0
0
0
0
0
0
0
4.8 4.8
0
0
0.7
0.7
0.7
-4.8
-4.8
-4.8
0
0
0
0.5
0.5
0
4.8
4.8
-4.8
-4.8
-4.8
0
0
0
0
0 0
0
0
4.8
0
0
0
0
0
0
0
0
0
0
0
0 0
0
0
0
0 0
0
0
0
0 0
0
4.0
4.0
3.8
3.8
-0.1
-0.1
-0.1
0
0
0
3.8
0
0
0
3.8
0
0
0.7
0.7
0.7
-4.8
-4.8
4.7
T
O
OPERA
TION (6)
W953
P
age 137 A-8
EUROPE
T
O
VIDEO BO
TT
OM CB5
P
age 142 C-8
-0.1
4.7
0
0
-0.1
-4.8
0 2.3
2.0
1.5
0.5
2.3
2.3
1.5
0.5
1.5
0.5
2.0 1.5
0.5
2.0
2.0
2.0
2.0
1.5
1.5
0.5
0.5
0.5
0.5
0.5
0
0
0
0
0
0
0
0
0
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
0.2
0.1
0.1
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0
1.5 0.1
0
1.5 0.1
0
1.5 1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
4.6
-4.8
0.1
0
1.5 0.1
0 0
0 0
0
0
0.8
0.1
1.5 0.1
0
1.5 0.1
0
1.5 0.1
4.8
1.5 0.1
4.8
1.5 0.1
4.8
1.5 0.1
4.8
1.5
1.5
4.8
1.5
0.6
0.6
0.6
0
0
0
0
0
0
0
0
0
1.5
4.8
4.8
4.8
4.8
4.8
4.8
0 4.8
0 4.8
0 4.8
0 4.8
0 4.8
0 4.8
0 4.8
0 4.8
0 4.8
0
4.8
0 4.8
0 4.8
0 4.8
0 4.8
0
4.8
0
4.8
0 4.8
0
-4.8
4.6
4.6
4.6
4.7
0
-0.1
4.7
0
0
-0.1
-4.8
0
0
-0.1
4.7
0
0
-0.1
-4.8
0
0
T
O
VIDEO BO
TT
OM CB2
P
age 142 A-8
T
O
DSP1 (3) CB899
P
a
ge 132 N-3
T
O
DSP1 (3) CB898
P
a
ge 132 N-2
T
O
VIDEO BO
TT
OM CB2
P
a
ge 142 A-8
4 8
4 8
4 8
4 8
4 8
4 8
4 8
4 8
4 8
4 8
4 8
4 8
4 8
4 8
4 8
4 8
4 8
4 8
■
SCHEMATIC DIAGRAM (VIDEO TOP 2/2)
* 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.
IC46 : LA7108M-TLM
75
Ω
Video Driver
6dB DR
6dB DR
6dB DR
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VIN1+
NFB1
MUTE1
VIN2+
NFB2
—VCC1
VIN3+
NFB3
+VCC
VOUT1
GND
VOUT2
MUTE2
VOUT3
MUTE3
—VCC2
IC47 : LA7104M
6dV Amp & Driver
6dB DR
6dB DR
6dB DR
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VIN1+
NFB1
MUTE1
VIN2+
NFB2
–VCC1
VIN3+
NFB3
+VCC
VOUT1
GND
VOUT2
DR CTL
VOUT3
MUTE2
–VCC2
IC45, 60–64, 82–86 : OPA2652U
Dual OP-Amp
– +
OUT 1
–IN 1
–V CC
+V CC
OUT 2
1
2
3
4 5
+IN
1
–IN
2
+IN 2
– +
6
7
8
IC106, 107 : TC74HC4052AF
Analog Multiplexers/Demultiplexers
16
VDD
6
INHIBIT
10 A
9 B
8 VSS
7 VEE
12 X0
14 X1
15 X2
11
X3
1 Y0
5
Y1
2 Y2
4 Y3
LEVEL
CONVERTER
BINARY TO 1-OF-4
DECODER WITH INHIBIT
SW
SW
SW
SW
SW
SW
SW
SW
13 X
3
Y
INHIBIT
0
0
0
0
1
B
0
0
1
1
X A
0
1
0
1
X
0x, 0y
1x, 1y
2x, 2y
3x, 3y
NONE
IC81, 103 : TC74HC238AF
3 to 8 Line Decoder/Demultiplexers
VDD
Y0
Y0
16 15 14 13 12 11 10 9
A
B C G2A G1 Y7
Y6
1 3 2 4 5 6 8
B C G2A VSS G1
7
Y7
ENABLE
OUTPUT
OUTPUT
Y1 Y2 Y3 Y4 Y5 Y6
A G2B
SELECT
Y1 Y2 Y3 Y4 Y5
G2B
G2*
H
X
L
L
L
L
L
L
L
L
ENABLE
INPUT
OUTPUT
G1
X
L
H
H
H
H
H
H
H
H
C
X
X
L
L
L
L
H
H
H
H B
X
X
L
L
H
H
L
L
H
H A
X
X
L
H
L
H
L
H
L
H Y0
L
L
H
L
L
L
L
L
L
L
Y1
L
L
L
H
L
L
L
L
L
L
Y2
L
L
L
L
H
L
L
L
L
L
Y3
L
L
L
L
L
H
L
L
L
L
Y4
L
L
L
L
L
L
H
L
L
L
Y5
L
L
L
L
L
L
L
H
L
L
Y6
L
L
L
L
L
L
L
L
H
L
Y7
L
L
L
L
L
L
L
L
L
H
SELECT
G2* = G2A + G2B
H : HIGH L : LOW X : H or L
IC43, 44 : TC74HC4051AFEL
Analog Multiplexers/Demultiplexers
LEVEL
CONVERTER
BINARY TO 1-OF-8
DECODER WITH INHIBIT
11
10
9
8
7
6 16
13 SW
SW
SW
SW
SW
SW
SW
SW
14
15
12
1
5
2
4
3
INHIBIT VDD
X
A
B
C
VSS
VEE
X0
X1
X2
X3
X4
X5
X6
X7
INPUT STATES
INHIBIT
0
0
0
0
0
0
0
0
1
C
0
0
0
0
1
1
1
1
X
B
0
0
1
1
0
0
1
1
X
A
0
1
0
1
0
1
0
1
X
“ON” CHANNEL (S)
0
1
2
3
4
5
6
7
NONE
IC48, 104, 105 : TC74HC4053AF (EL)
Analog Multiplexers/Demultiplexers
16
VDD
LOGIC LEVEL
CONVER
TER
12 OX
7
VEE
6 INH
OUT C IN
13 IX OUT C IN
2 OY OUT C IN
1 IY OUT C IN
5 OZ OUT C IN
3 IZ OUT C IN
4 Z-COMMON
15
14 X-COMMON
Y-COMMON
9 C
10 B
11 A
8
VSS
INHIBIT
(Pin 6)
L
L
L
L
L
L
L
L
H
CONTROL INPUTS “ON” CHANNEL
0X (Pin 12), 0Y (Pin 2), 0Z (Pin 5)
1X (Pin 13), 1Y (Pin 1), 1Z (Pin 3)
0X, 0Y, 0Z
1X, 0Y, 0Z
0X, 1Y, 0Z
1X, 1Y, 0Z
0X, 0Y, 1Z
1X, 0Y, 1Z
0X, 1Y, 1Z
1X, 1Y, 1Z
NOTE
C
(Pin 9)
L
L
L
L
H
H
H
H
*
B
(Pin 10)
L
L
H
H
L
L
H
H
*
A
(Pin 11)
L
H
L
H
L
H
L
H
*
* Don’t Care
IC65–80, 87–102, 111–114 : NC7WB66K8X
Dual Analog Switch
1
2
3
4
8
7
6
5
1A
1B
OE2
GND
VCC
OE1
2B
2A