Pioneer A-509R Service Manual page 15

5
POWER SW ASSY
G
(AWX7057)
FRONT R ASSY
S 601 : INPUT SELECTOR
S 603 : TAPE2 MONITOR
S 604 : DIRECT/SB MODE
S 606 : REC SELECTOR
VSG1009
TC74HC107AP
TC74HC00AP
5
6
HEADPHONE ASSY
F
(AWX7052)
6
7
D F
7
8
A-509R
A
B
C
D
G
15
8