Question about Audio Players & Recorders
If you remove the signal cable from the amplifier while the Sub is switched on (turned down about half way) you should hear a thump sound. If you do that proves that your sub is working and you need to look at your Yamaha. Perhaps the sub channel has been disabled in the logic settings. Check the speaker configuration pages. If all looks well reset your amp to factory settings and try again. I have had a logic glitch which was fixed in this way.
Posted on Dec 14, 2013
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Posted on Jan 02, 2017
SOURCE: sub thumps repeatedly
since it still thumps i suspect the speaker is ok, but i suspect you have an electronic problem in the amp. since it is a powered sup & has the ability to auto turn on it has electronic circuits inside, take it to a service center for an estimate
Posted on Oct 31, 2006
SOURCE: sound problems through subwoofer
check all speakers wires andcheck test mode. every thing ok, may be input wiring problem ,check every thing after that internalcircuit may be problem..
Posted on Oct 09, 2007
SOURCE: klipsch subwoofer
its all about impedance matching...did you check to see that the new yamahas would drive from the system, before installing them? sounds like you will need to possibly add a matching transformer or other device on this one.
Posted on Mar 09, 2008
No sound problem is power amplifier trouble maybe the IC there is
defected or cold solder of joint of the parts.Cold solder issues - each
component is soldered into small
holes on the printed circuit board which in turn connects said
component to the
other components. Due to time, heat, use, some solder joints would be
or loose. It is possible that the cold solder is still minimally
(hanging by a thread). When the receiver turns on heat would be
generated which would
be sufficient to further loosen up the solder joint to the point it no
provides electrical contact. Jarring the unit creates movement inside
re establish the contact, sometime good enough sometimes not enough.
Again, since the unit still operates (sometimes) then it is highly probable that there are no defective components. As you have surmised, it is possibly a loose connection, solder joints are "connections" except that molten soldering lead is used to attach/connect the component to the board, "loose connection" in this sense is equal to "cold solder".
Again on the assumption of no defective parts, then seeking a more experienced buddy for the soldering might be to your advantage. This is of course in addition to the possible electrical hazards when repairing....
Don't forget to rate;
Posted on Jul 22, 2008
I too have purchased the same receiver and have the same speakers. Did you get a good solution to this problem and how does it sound?
Posted on Aug 12, 2010
Tips for a great answer:
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