The Blackberry Pearl 8100 features GSM 850 / 900 / 1800 / 1900 2G network modes, 1.3 MP, 1280 x 1024 pixels, LED flash built in camera, 32-bit Intel XScale PXA272 312 MHz processor CPU with BlackBerry operating system. Below diagram shows detail schematic diagram for Blackberry Pearl 8100 and .

imageThe Blackberry Pearl 8100 is a 4 pin 3.5mm (2.5mm) at the headset cable. The assignment is as following: Pin 1 for Control (+2.4v); Pin 2 and 3 for  Audio channel (left or right) and Pin 4 for Ground. Note that 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.



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