Qualcomm Incorporated (QCOM) Message Board

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Technology Stocks : Qualcomm Incorporated (QCOM)

QCOM 176.00

+0.4%

Dec 9 3:59 PM EST

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To: Jon Koplik who wrote (23818)	3/9/1999 3:18:00 AM
From: Asterisk	Read Replies (1) of 152472

As someone said the LEDs are probably being powered by the telephone network. It is possible that the network causes a transistor switch to turn on and the glow is then provided by the batteries. If your transistor is shorted open (possible failure mechanism though not the most popular one) it is possible that the LEDs are being powered by the remaining energy in the batteries no matter how little. Does the glow increase or decrease when someone makes a phone call? It is also possible that the speaker phone is taking energy from the phone line and it only needs the batteries to give it that little initial kick to get past the initial current spike. Once you make the connection it is possible that you have enough energy in the phone lines to power the speaker. All just guesses.

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