Question about Onkyo HT-S780 System
Ok, I was able to get a schematic for the skw-530 and the fuse checks to be fine. But the schematic doesn't give me what the voltage coming out of the linear transformer that feeds the ciruit board. There a two resistors that are connected to the transformer that get really really hot. the printed circuit board where the transfor connects does say "AC in". My question is what should be the proper voltage to the circuit board?
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Posted on Jan 02, 2017
SOURCE: Onkyo subwoofer not working
I fixed my subwoofer. The resistor at R16 (right next to the fuse) was the fried component. I removed it and replaced it with a 13K ohm 5 watt metal oxide resistor (from Mouser Electronics if not available locally). Works fine now. I got the solution and the circuit schematic from an audio hobbiest at diyAudio.com. This is, evidently, a fairly common problem.
Posted on Nov 19, 2007
If the system uses a remote control, you may need to adjust the subwoofer out signal setting or turn on the sub in a menu, and on many systems, you can only access those settings via a remote control (you should check the onkyo user manual on how to do it).
Now, this is just one suggestion, it may work, but then again, it may not.
These could also be connection problems or some internal trouble in the onkyo sub signal output section or in the subwoofer input section, but hopefuly, it's just a "turn on" or "signal level" setting in a menu.
Posted on Jul 23, 2009
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