NWZ-A826, NWZ-A826K, NWZ-A828, NWZ-A828K, NWZ-A829, NWZ-A829K - Sony Audio Service Manual (repair manual). Page 42

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NWZ-A826/A826K/A828/A828K/A829/A829K
42
Pin No.
Pin Name
I/O
Description
AF16, 
AF17
DD1INB1, DD1INB2
I
Power supply input terminal (+2.9 - 4.2V)
AF18
DD1VFBK2
I
Power supply voltage feedback terminal
AF19
DD1GNDA
-
Ground terminal
AF20
VGP1
O
Power supply output terminal (+2.85V)
AF21
COM
-
Not used
AF22
NC
-
Not used
AF23
VGP3
O
Power supply output terminal (+2.85V)
AF24 to 
AF26
NC
-
Not used
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