HP 2540p WZ226UT#ABA manual Connector pin assignments, 1394, Pin Signal

8 Connector pin assignments

1394

Pin	Signal
1	TPB-
2	TPB+
3	TPA-
4	TPA+

Audio-in (microphone)/audio-out (headphone) combo

Pin	Signal
1	Audio signal in (microphone) / audio out, left channel
	(headphone)
2	Audio signal in (microphone) / audio out, right channel
	(headphone)
3	Ground (microphone) / ground (headphone)

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