Question about Altec Lansing Audio Players & Recorders
Appears to be no input from either of the input jacks . . . Woofer circuit responds to touching input to Output Power Transistor. Similar response to the two small speakers. Might be input audio transistor problem.
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Posted on Jan 02, 2017
SOURCE: Sub Woofer does not work
hi there are fast checkings for you: Quick Connect Card http://www.alteclansing.com/downloads/641QCC.pdf manual: http://www.alteclansing.com/downloads/641_MAN.pdf is the system working fine exept the sub? my guess: the headphone jack works fine then the speakears are too if soo then the sub amp is bad or some connection is torn try opening the sub and see if everything is hooked right and if soo then the amp is the problem every electronics shop can fix this good luck
Posted on Mar 21, 2006
If the speaker is not blown, there must be an output capacitor. If no output capacitor, and you have a blown transistor the speaker will blow from DC current. You can further check the transistors with a multimeter. A transistor looks like 2 diodes and you should be abobe to test with a mulimenter like a diode test.
Posted on May 12, 2009
you probably messed something up in the subwofeer amplifier box, try taking them to a repair shop, or at the guarantee place.
another solution would be: you could try and fix them yourself but i don't recommend it.
Posted on Jan 15, 2010
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