Pioneer A-509R Panduan Servis - Halaman 6
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1
A-509R
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
A
CN101
CN102
2.8mV
PHONO
/50kΩ
TUNER
CD
200mV
/50kΩ
LINE/SB
TAPE1
B
/CD-R
/MD
200mV
REC
/1kΩ
TAPE2
200mV
/50kΩ
MONITOR
200mV
REC
/1kΩ
C
D
6
1
2
IC151
RIAA
37dB
27
26
RY101
24
25
24
RY102
23
22
20
21
SOURSE
IC101(2/2)
A
Q407, Q408
FROM UNUSUAL
OUTPUT DETECTION
38
B
S701–S704
23, 24,
KEY INPUTS
S602, S603
36, 40,
41, 42
FROM REC SEL
S606
FROM FUNCTION SEL
S601
32, 33
1
B
604
SR INPUT
2
3
A
AF ASSY
IC101(1/2)
FUNCTION
24
19
CN203
17
14
18
D
FRONT R ASSY
TO FUNCTION SW
2, 3, 4
DIRECT, LOUDNESS ON/OFF
12, 15
VOLUME UP/DOWN
µ-COM
30, 31
MUTE, FUNC MUTE ON/OFF
IC601
17
37
TO PROTECTION RY
3
4
Q501
Q503
ON/OFF
LOUDNESS
CN501
14
VR501
VOLUME
M
1, 2
CN501
1, 2
CN203
IC251
UP/DOWN
A
IC101
C
Q501–Q514
A
IC251
A
Q303
A
Q403, Q404
4