Question about Technics SC-DV290 System
> checked resistance getting nothing
Nothing = zero or nothing = infinite?
If it is essentially zero, you are probably OK since the DC ohms of nearly any speaker measures very low resistance; they are rated in impedance which is a complex combination of resistance (R), inductance (L), and a little capacitance (C) and becomes the 'Z' of the rating of (typically) 4-8 ohms.
If it is measuring open (a flashing display on any resistance range of a digital meter), then you probably have a problem.
You can safely take a single flashlight battery (or any 1.5 volt cell) and apply this by tapping across the input of your sub-woofer. If it makes a fairly loud 'click' then the speaker is functional. If it passes the test, you have connection or output problems from your amplifier.
Posted on Feb 28, 2009
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