Yamaha RX-V2300, Service Manual

Page: 86 / 160

RX-V2300/DSP-AX2300/RX-V1300/RX-V1300RDS/HTR-5590/DSP-AX1300
A
1
2
3
4
5
6
7
8
9
B C D E F G H I J K L
86
SCHEMATIC DIAGRAM (OPERATION)
IC801: TC4066BP
Quad Analog Switch/Multiplexer
1
2
3
4
5
6
7
IN/OUT1
OUT/IN1
OUT/IN2
IN/OUT2
CONT2
CONT3
VSS
14
13
12
11
10
9
8
VDD
CONT1
CONT4
IN/OUT4
OUT/IN4
OUT/IN3
IN/OUT3
IC802, 803: NJM2068MD-TE2
Dual OP-Amp. IC804: NJM4556AL
Dual OP-Amp
8
2, 6
3, 5
1, 7
4
V+
–INPUT
+INPUT
V–
OUTPUT
– +
OUT
1
–IN
1
–V
CC
+V
CC
OUT
2
1
2
3
4 5
+IN
1
–IN
2
+IN
2
– +
6
7
8
IC961: ADM202JRN-REEL7
RS-232 Driver/Receiver
1
3
2
16
C1+
C1–
Vcc
V+
11 14
T1in
T1out
+5V
→
+10V
Voltage Boost
Circuit
4
5
6
C2+
C2–
V–
+10V
→
–10V
Voltage Inverter
T1
10
7
T2in
T2out T2
12
13
R1in
R1out R1
9 8
15
R2in
R2out
GND
R2
★
All voltages are measured with a 10M
Ω
/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.
x: NOT USED
O: USED / APPLICABLE
C970, 971 1000P
US06310
FL DRIVER
FL DISPLAY
INPUT
SELECTOR
VOLUME
Page 84
to FUNCTION
I7
P
age 84
to FUNCTION
G1
P
age 88
to VIDEO
(5)
E3
P
age 88
to VIDEO
(1)
E5
P
age 84
to FUNCTION
B1
P
age 83
to DSP
D1
8
4
1
7
3
2
6
5
1
3
2
6
5
3
8
10 11
4
6
5
2
8
4
1
7
5
6
2
3
8
4
7
1
14
9
12
13
REC OUT
SELECTOR
BASS EXTENTION TONE CONTROL
P
age 92
to PO
WER (2)
G7
RX-V2300/DSP-AX-2300
52
Display
controller
Segment
digit
select/
output
circuit
Serial
receive
circuit
Digit
output
circuit
Clock
generator
DIG11/
SEG42
51
DIG12/
SEG41
50
DIG13/
SEG40
49
DIG14/
SEG39
48
DIG15/
SEG38
47
DIG16/
SEG37
46
DIG17/
SEG36
45 SEG35
XOUT 6
Vcc1
8
Vcc2 18
Vss
5
Vp 64
XIN 7
CS
SCK 3
SDATA 4
RESET 1
SEG00
44
9 SEG34
SEG26 17
19 SEG25 Segment
output
circuit
Display code
RAM
(8-bit x 60)
CGROM
(35 bit x 166)
CGROM
(35 bit x 16)
code
select
Code
write
Code/
command
control
circuit
DIG00 63
53 DIG10
IC901: M66003-0101FP
FL Display Driver
2
data
timing
clock
dot data
write
scan pulse
-32.6
-25.5
-25.1
~ ~ ~
-32.3
~
-32.3
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
-32.3
~
-32.3
~ ~
-32.3
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
-25.1 -25.1
~ ~ ~ ~ ~ ~
-25.1
5.0
0
4.8
~
~
4.8
~
~
~
~
~
-32.3
~
~
~
-32.3
-32.3
~
~
~
~
~
~
~
~
-32.3
~
~
~
~
~
~
4.8
0
0
0
0.1
4.8
4.4
4.8
~
4.8
~
~
4.8
~
~
4.8
4.8
4.8
4.8
4.4
4.8 4.3
~
~
4.8
~
~
4.8
~
4.8
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
4.8
-32.3
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
-32.6
4.2
4.2
0
4.8
4.2
0
3.7
3.7
4.8
-8.3
8.5
8.5
0
0
-8.4
0
0
0
0
0
0
0
-8.3
0
0
-8.3
0
0
-8.3
0
0
11.0
-11.0
0
0
0
0
0
0
11.0
-11.0
0
0
-8.3
8.5
8.5
8.5
0
FRONT L
0.7
0
8.5
0
0
0
-8.5
-8.5
-9.2
8.5
9.2
0
0
0.7
0
0
0
0
C839
2200P
C840
2200P
TP00385
C971
520
C970
520
NJM2068MD-TE2
NJM2068MD-TE2
NJM2068MD-TE2
NJM2068MD-TE2