Yamaha CD-S300 Service Manual page 43
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Also See for CD-S300:
- Owner's manual (108 pages) ,
- Owner's manual (108 pages) ,
- Owner's manual (39 pages)
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A
B
C
OPERATION 1/3
1
OPERATION (1)
2
3
0
-21.7
Page 45
M8
-21.7
to OPERATION (8)_CB807
-21.7
W702
4
3.3
0
3.3
3.3
3.4
5
3.4
Page 42
G2
0
to MAIN_CB304
3.3
0
3.4
3.4
3.4
3.4
3.4
0
6
CB701
7
8
9
10
D
E
F
-3.4
3.4
-26.5
-26.5
-26.5
-26.4
PURE
CD/USB
DIRECT
G
H
3.3
3.3
0.3
Key detection for A/D port
Key input (A/D) pull-up resistance 10 k-ohms
Ohm
0
+ 820
+ 3.3 k
+ 12.0 k
V
0
0.2 – 0.3
0.9 – 1.0
2.0 – 2.1
A/D value (3.3V=255)
0
15 – 25
70 – 78
153 – 162
KEY0 (58 pin)
–
STOP
PAUSE
OPEN/CLOSE
KEY1 (59 pin)
–
PLAY
SKIP +/SEARCH + SKIP -/SEARCH -
Ohm
0
+ 100
+ 3.3 k
+ 12.0 k
V
0
0.03 – 0.1
0.8 – 0.9
2.0 – 2.1
A/D value (3.3V=255)
0
3 – 7
60 – 70
150 – 160
KEY2 (60 pin)
–
PURE DIRECT
CD/USB
–
I
J
K
W701A
3.3
3.3
3.3
0.3
PURE DIRECT
indicator
1.9
0
0
3.3
0
0
W703
3.3
IC702
3.3
3.3
0
IC702: TC7SH08F
2-input AND gate
IN B
1
5
V
CC
A
B
Y
IN A
2
L
L
L
L
H
L
GND
3
4
OUT Y
H
L
L
H
H
H
★ 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
CD-S300
W701B
3.3
0
POWER
indicator
1.9
0
OPERATION (2)
OPERATION (3)
CB753
0
0.3
iPod/USB
0.3
CB752
iPod/USB
indicator
0
0
0
Page 41
M3
to MAIN_CB6
● 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。
43
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