Yamaha RX-V363 Service Manual page 79

A B C
OPERATION 1/2
1
2
3
4
OPERATION (6)
JK261
CB261
3.3
5
0
0 0
0
0 0
6
-1.3
2.4
OPERATION (11)
7
JK201
8
IC202
IC202
9
10
D E F
-29.5
-23.7
-21.7
-31.6
VFD
-25.5
-29.5
-23.7
IC201
-25.7
-23.7
-21.8
3.3
-23.7
-23.8
-29.7 -29.6
-29.4
-31.6
3.3 3.3
-29.7
-29.8
-29.7
-29.7
-29.5 -29.3
3.3 3.3
3.3
0
-1.3 3.2
0
0
-1.3 3.2
3.2
0
0
3.2
-1.3
3.2
2.4
2.4
2.4
0
2.4
0
0
Page 82 I4 Page 76
to MAIN (4)_CB191 to DSP_CB408
(R, K, A, B, G, E, F, L models)
G H I
3.3
-19.4
-19.4
-25.5
-27.5
-21.6
-24.9
-21.8
-17.9
-18.1
-19.9
-28.4
-19.4
3.3
3.3
1.5
1.5
-16.2 -31.9
0
3.2 -16.1
3.2
3.3
3.3
C7
J K L
SDATA
XOUT
W2004
CB203
RESET
Page 80 F9
to OPERATION (2)_CB235
OPERATION (10)
W2003
CB204
CB274
0
3.3
0
OPERATION (7)
Page 82 J4
to MAIN (4)_CB192
TUNING
AUTO/MAN'L
0
0
0
0
0
W2351
0 0
0
0
0
0
0
0
0
0 0
OPERATION (1)
# All voltages are measured with a 10MΩ/V DC electronic voltmeter.
# 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.
M N
RX-V363/HTR-6130
IC201: M66003-0131FP-R
18 digit 5 x 7 segment VFD controller/driver
Display code
RAM CGROM
(35 bit x 166) 44 SEG00
(8-bit x 60)
Segment 19 SEG25
Code
write output
17 SEG26
circuit
CGROM 9 SEG34
CS 2 Serial dot data
data write (35 bit x 16)
receive
SCK 3 Code/
4 circuit
command
45 SEG35
control
circuit
DIG11/
52
SEG42
DIG12/
51
SEG41
Segment/
code DIG13/
select Digit 50
SEG40
select/ DIG14/
49
XIN 7
Clock Display output SEG39
timing
generator clock circuit DIG15/
controller scan pulse 48
6 SEG38
DIG16/
47
SEG37
DIG17/
46
SEG36
63 DIG00
Digit
1 output
circuit
Vcc1
8 53 DIG10
Vcc2 18
Vss 5
Vp 64
IC202: NJM4565M
Dual operational amplifier
V+
8
2, 6
–INPUT OUTPUT
1, 7
+INPUT
3, 5
V–
4
VIDEO
VIDEO
AUX
AUDIO
JK266
PORTABLE
JK266
79