Question about Yamaha Audio Players & Recorders
My subwoofer was working prior to a ypao session. Now my subwoofer is not recognized on the display (as well as no sound). I have the subwoofer "on" in the speaker set up. The power led light on sub went from green to red as well when I noticed it not firing. The light is green now, but no difference. Also, I don't sound from my tuner anymore.
Do a test tone which will test all speakers connected to the receiver.
Posted on Apr 20, 2014
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Posted on Jan 02, 2017
From the speaker output from your amp, connect left and right to the sub box. Turn on amp and try to play some music. If the sub is working, turn amp off and connect the satellite speakers and turn amp on. Make sure amp is on speaker "A" and the lines are coming from the same connectors on the rear of amp. Check your amp with another speaker to make sure it is working if you have no output. Does the Bose box have its own power cord (self-powered)? If it is self-powered, the internal amp might have tripped or is not working. If unit is not powered, the crossover or thermal protection could be damaged. Refer to Bose for parts.
Posted on Jun 22, 2007
Hey Tad, I have the same problem and perhaps a solution. I just moved to the other SW "pre-out" and it seems to be working..the green light is on . Whatever works i guess.
Posted on May 14, 2008
SOURCE: Onkyo 805 sub hook up problem
I made the same mistake when i hooked my REL sub up to the back of the 805.
The problem is there are 2 connectors on the back of the amp that are labeled as sub out. Look very closely, you will see that there are 2 grouped RCA outs. The RCA out group you are looking for differentiated by groups of "little white dots" all the way to the far right on the back of the amp. Hope this helps.
Posted on Jun 09, 2008
SOURCE: Kube 2 subwoofer hum
The Kube Sub-woofer is earthed via its 3 pin plug. The Onkyo and other components I have in my system are not (they are double insulated). During normal operation, a difference in electrical potential can exist between these components in the system. I found that this potential was finding a path to earth via the audio cable and on through the subwoofer's earth. The path was via the earth portion of the audio cable and so gave the hum irrespective of volume levels set either on the Onkyo or the sub.
The fix is to ground the Onkyo to the sub. I used a length of electrical cable between a panel mounting screw on the back of the sub and a screw on the casing at the rear of the Onkyo. Try it out with a piece of cable manually touching screws with the bare ends of the cable until you find ones that give continuity( the hum will go immediately). I then crimped a small fork end electrical fitting onto each end of the cable which can be slid under the slighly loosened screw head and resecured. All I hear now is the fan on the Blu-Ray player!
Posted on Mar 12, 2009
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