Pioneer A-509R Servicehandleiding - Pagina 7

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Pioneer A-509R Servicehandleiding
5
C
VOLUME ASSY
DIRECT
ON/OFF
Q505
Q507
Q509
4
CN502
3
4
J3
3
TONE
7
6
AND
BALANCE
B
IC751
FRONT L ASSY
VR751
VR752
D
VR601
+BL
TO POWER STAGE
–BL
TO OP AMP
IC451
RY
IC452
+BH
TO VOLTAGE STAGE
–BH
TO µ-COM
LED
5
6
AF ASSY
DIRECT ENERGY MOS
CN501
CN203
10
10
FUNC
MUTE
A
AF ASSY
D451
A
+19.2
–15
T1
A
D457-D460
T801
+5.6
E
IC811
E
D811-D814
6
7
A
POWER AMP
WRLC
40dB
PROTECTION RY
RY401
RY402
IC301
RY403
Q309–Q334
Q303
UNUSUAL
OUTPUT
DETECTION
Q407, Q408
A
E
E
G
FU1
RY801
S901
7
8
A-509R
SP-A
SP-B
CN401
1
1
J5
H.P
F
JA501
HEADPHONE ASSY
E
AC PRIMARY ASSY
8
A
B
C
D
7