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A-209R, A-209
6
A
B
C
D
1
2
3
4
1
2
3
4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
RIAA
37dB
PHONO
REC
TUNER
LINE
CD
TAPE1
/CD-R
/MD
REC
TAPE2
MONITOR
FUNCTION
2.8mV
/50k
Ω
200mV
/50k
Ω
200mV
/1k
Ω
200mV
/50k
Ω
200mV
/1k
Ω
CN101
CN102
TO FUNCTION SW
DIRECT, LOUDNESS ON/OFF
VOLUME UP/DOWN
FUNC MUTE ON/OFF
TO PROTECTION RY
SR INPUT
FROM FUNCTION SEL
KEY INPUTS
µ
-COM
FROM UNUSUAL
OUTPUT DETECTION
IC101
IC601
S601
S602, S603
S702–S704
604
G
Q331, Q327, Q328
D
Q303
D
Q337–Q340
D
Q501–Q514
A
IC101
D
Q334, Q336
D
E
IC151
3
1
27
26
24
24
25
17
19
24
18
20
32, 33
17
30, 31
12, 15
2, 3, 4
38
1
37
23, 24,
36, 40,
42
ON/OFF
LOUDNESS
VOLUME
UP/DOWN
M
Q501
Q503
Q337-Q340
VR501
CN203
CN203
CN501
CN501
12
12
1, 2
1, 2
F
FRONT R ASSY
D
AF ASSY
Q101
Q103