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