Yamaha AX4600, Service Manual

Page: 94 / 144

A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V4600/DSP-AX4600
SCHEMATIC DIAGRAM (INPUT 2/2)
94
★
All voltages are measured with a 10M
Ω
/V DC electronic 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.
0
0
0
0
0
0
-4.7
0
4.9
0
0
0
0
0
0
0
0
0
0
0
0
0
-4.7
0
4.9
0
0
0
0
0
0
0
0
0
0
0
0
0
-4.7
0
0
0
0
0
0
0
-4.7
0
4.9
0
0
0
0
0
0
0
4.9
0
0
0
0
0
0
0
0
0
0
0
0
0
-4.7
0
4.9
0
0
0
0
0
0
0
0
0
0
0
0
0
-4.7
0
4.9
0
0
0
0
0
0
0
0
0
0
0
0
0
-4.7
0
0
3.2
0.8
4.7 0.2
0.1
0.1 4.2
0.5
0
0.8
0
-4.8
0
0.8
0.8
-0.2
0
0.1 -4.8
-4.8
-4.8
0.8
0.5
0
0.1
3.9
4.7
4.7
4.7
4.9
0
0.1
0.1
0
4.7
4.7
4.7
4.7
-0.2
-0.2
0
0
-0.2
-4.8
0
4.7
-0.6
0.7
0.7
4.4
4.4
4.7
1.0
1.5
0.9
0.6
0.6
0.1
0.1
0.1
1.4
0 0
4.7
4.9
4.9
2.6
2.6
2.5
2.6
0.1
0.1
0.1
0.1 4.2
4.2
4.6
4.8
4.7
4.9
0
0.1
0
0
0
0
0
0
-4.8
0
0
4.9
0 0.1
0.7
0
0
0
0
0
0
0
0
0
-0.6
-4.8
0
2.5
2.5
0
0
3.4
3.4
0
0
-4.8
-4.8
-4.8
-4.8
0
0
0
0
0
0
0
3.4
4.7
0
-4.8
-4.8
0
0
0
3.4
0
0
0
3.4
0
0
0
0
4.8
4.8
4.7
4.7
-4.8
-4.8
-4.8
5.0
-4.8
5.0
0
0
0
0
0
0
0
0
0 0 0 0 0 0
0
0
0
4.7 0
4.7
4.7 0.1 0.1
3.4 3.4 0.1
1.8K
430
100
91
INPUT (2)
O : USED / APPLICABLE
X : NOT USED
Page 95
to CONTROL_CB518_5Pin
I8 Page 88
from FUNCTION (3) – C-F_CNCT – CB536_13Pin
G2
Page 88
to FUNCTION (6) – V-CNCT – CB501_11Pin
C8
IC701 - 706: MM74HC4051SJX
8-Channel Analog Multiplexer
16
11
10
9
7
VSS
8
GND
C
B
A
VCC
4
Y7
1
Y4 Y5 Y6
12
Y3
2 5 15
Y2
IN/OUT
14
Y1
13
Y0
COMMON
OUT/IN
6
INH
Logic
Level
Conversion
Binary to 1
of 2 Decoders
with INHBIT
TG
TG
TG
TG
TG
TG
TG
TG
3
IC707, 710, 713: MM74HC4053SJX
Triple 2-Channel Analog Multiplexer
16
11
10
4
7
OUT/IN
AX or AY
VSS
8
GND
C
B
A
VCC
3
CY
5
CX
1
BY
2
BX
IN/OUT
13
AY
12
AX
TO
Logic
Level
Conversion
Logic
Level
Conversion
Logic
Level
Conversion
OUT/IN
CX or CY
OUT/IN
BX or BY
9 INH
Logic
Level
Conversion
Binary to 1
of 2 Decoders
with INHBIT
Binary to 1
of 2 Decoders
with INHBIT
Binary to 1
of 2 Decoders
with INHBIT
YG
TG
TB
TC
TG
IC708: TC74HCU04AFEL
Hex Inverters
1A
1Y
2Y
VCC
6A
1
2
3
4 11
2A 6Y
5A
12
13
14
3A
3Y
5Y
4A
5
6
7 4Y 8
9
10
GND
IC709, 714: TK15420M
Video Amp
– +
1
2
3
4 5
– +
6
7
8 OUT A
–IN A
+IN A
VEE
VCC
OUT B
–IN B
+IN B
IC711: LA7109
6CH 75
Ω
Video Driver
35
VOUT1
33
VOUT2
31 VOUT3
30
MUTE4
29 -VCC4
32 DR CTL2
36
+VCC1
34 GND
2 NFB1
4
VIN2+
6
-VCC1
7
VIN3+
8
NFB3
28 N.C.
27
N.C.
26 +VCC2
9
N.C.
10 N.C.
11
VIN4+
5 NFB2
1
VIN1+
3
MUTE1
DR 6dB
DR 6dB
DR 6dB
25
VOUT4
23 VOUT5
21 VOUT6
20 MUTE3
19
-VCC3
22 DR CTL1
26
24 GND
12 NFB4
14
VIN5+
16
-VCC2
17
VIN6+
18 NFB6
15 NFB5
11
13
MUTE2
DR 6dB
DR 6dB
DR 6dB
IC712: LA7108M
Video Amp
15 VOUT1
13 VOUT2
11
VOUT3
10 MUTE3
9
-VCC2
12
MUTE2
16 +VCC
14 GND
2
NFB1
4 VIN2+
6 -VCC1
7
VIN3+
8 NFB3
5
NFB2
1 VIN1+
3
MUTE1
DR 6dB
DR 6dB
DR 6dB
IC715: BU2092F-E2
Serial In/Parallel Out Driver
1 Vss
2 DATA
3 CLOCK
4 LCK
5 Q0
6
Q1
7 Q2
8 Q3
9 Q4
18 VDD
17 OE
16 Q11
15 Q10
14 Q9
13
Q8
12 Q7
11 Q6
10 Q5
Control
Circuit
Output Buffer (Open Drain)
Latch
12 Bit Shift Register
IC716: NJM2581M
Video Amp
13
VOUT1
11 VOUT2
9 VOUT3
8 GND
10 V+3
14
V+1
12
V+2
2 NEE1
4 VEE2
6
VEE3
7
PowerSave
5 VIN3
1
VIN1
3 VIN2
75
Ω
Driver
6dB
AMP
BIAS
75
Ω
Driver
6dB
AMP
BIAS
75
Ω
Driver
6dB
AMP
BIAS
REF
SELECTOR