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4 pin 3.5mm (2.5mm) plug connector layout
Разъем 4 pin 3.5mm (2.5mm) plug
original headset marked HDW-12420-001
Pin Pin
Name
Description
1 control +2.4v
2 Audio channel left or right
3 Audio channel left or right
4 Ground Ground

Ring 1 has a 1.4K ohm loading to Ground. When talk/play/pause function button is pushed it applies a short across ring 1 and 4. With ring 1 disconnected the Pearl plays via its internal speaker. However with 1 and 4 shorted it continues to play from its internal speaker!
 


 

На распиновку Blackberry 7105t, 7100i, 7100g, 7130g, 7130c, 7130e, 7250, 7290, 7520, Blackberry Pearl 8100, Blackberry 8800, 8820, 8830, 8350i, 8700c, 8700g, 8703e, 8705g audio есть 6 отзыв(а): 5 положительных и 0 отрицательных.

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