SW501
STANDBY
SW503
STOP
SW505
VOL-
SW507
PLAY/PAUSE
SW502
SOURCE
SW508
NEXT
SW504
VOL+
SW506
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C504
101
R509
47K
1
2
3
CN502
2.0/4P
AGND
AUX-L
AUX-R
35-HSB2351-05A1
C501
101P
R501
47K
HEADPHONE MP3
LINK BOARD
1
2
3
4
5
6
7
CN504
2.0/7P
KS1
KS2
K1
K2
K3
K4
GND
J501A
USBP
USBM
1
2
3
4
CN501
2.0/4P
USB 5V
1
2
3
4
5
6
USB501
USB TYPEA
R502 0
R503 0
R504 0
HEADPHONE JACK
5-1
5-1
Small Board