Schematic Diagrams - Yamaha CRX-330 Service Manual

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A
B
C
POWER 2/2
1
2
-17.0
-14.9
3
-15.0
-17.9
-21.0
-20.9
-15.0
-21.0
-12.1
-11.9
-10.4
-22.5
4
3.2
-21.0
-21.0
-20.7
5
6
7
8
JK801
PHONES
9
POWER (2)
10
D
E
F
-16.5
-21.0
-13.3
-21.0
-10.3
-11.8
-10.4
-22.7
-19.6
IC801
-19.4
3.2
1.5
1.5
0
0.4
2.8
2.1
3.2
W801
Key input (A-D) pull-up resistance 10 k-ohms
Ohm
V
KEY0
(97pin/AN0)
KEY1
To chassis
(95pin/AN1)
KEY2
(70pin/AN22)
G
H
15.3
15.3
12.8
12.8
13.2
13.2
6.6
-19.6
6.7
6.6
0.5
6.6
0
0
VOLUME
0
+1.5k
+1.8k
+2.7k
0 – 0.2
0.2 – 0.6
0.6 – 1.0
1.0 – 1.4
3.1 – 3.3
PLAY/PAUSE
STOP
OPEN/CLOSE
OFF
INPUT
OFF
OFF
I
J
K
CB801
W802
to MAIN (1)_CB207
STANDBY/ON
IC801: M66003-0131FP-R
18 digit 5 x 7 segment VFD controller/driver
Display code
RAM
(8-bit x 60)
Code
write
CS
2
Serial
data
receive
SCK
3
Code/
circuit
SDATA
4
command
control
circuit
XIN
7
Clock
timing
Display
generator
clock
controller
XOUT
6
RESET
1
Vcc1
8
Vcc2
18
Vss
5
Vp
64
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★ Components having special characteristics are marked
and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
L
M
N
CRX-330/NS-BP110/NS-BP100
Page 57
K3
to MAIN (1)_CB208
Page 57
K2
CGROM
(35-bit x 166)
44
SEG00
RESET
DIG15/SEG38
Segment
19
SEG25
output
CS
17
SEG26
DIG16/SEG37
circuit
CGROM
dot data
9
SEG34
SCK
DIG17/SEG36
(35-bit x 16)
write
SDATA
SEG35
45
SEG35
Vss
SEG00
DIG11/
XOUT
SEG01
52
SEG42
XIN
SEG02
DIG12/
51
SEG41
Segment/
Vcc1
SEG03
code
DIG13/
select
Digit
50
SEG40
SEG34
SEG04
select/
DIG14/
output
49
SEG33
SEG39
SEG05
scan pulse
circuit
DIG15/
48
SEG38
SEG32
SEG06
47
DIG16/
SEG31
SEG07
SEG37
SEG30
46
DIG17/
SEG08
SEG36
SEG29
SEG09
SEG28
SEG10
63
DIG00
Digit
SEG27
output
SEG11
circuit
53
DIG10
● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
パーツリストに記載されている部品を使用してください。
● 本回路図は標準回路図です。改良のため予告なく変更することがございます。
61

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Ns-bp110Ns-bp100Mcr-330Mcr-230

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