I have been operating the RCA D6520 multi-switch for a couple of years with four receivers. System works well but I noticed quite by accident (switch in attic) that the switch was very, very warm (almost hot). I wonder if this is normal or should I be alarmed?? Thanks in advance for your thoughts.
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Hampton Bay receivers are notorious for taking a dump, replace the remote. If you're just adding the remote... There will be 6 wires on the remote, a set of two (white and black) a set of three (white black red or blue) and a single small wire by itself. The single wire by itself is the Antenna wire, do not wire it to anything, or it will fry the board in the receiver.
I had a H20-600 that worked consistently until I unplugged it, then it would not power up unless the unit was warmed to its operating temp. (I placed it on an old iron radiator, warmed it up, it then powered up). The power supply on the unit had several failed, crowned capacitors (3300uf/10v). I pulled them, tested them (one was bad), and then replaced with good caps. Up the unit came. The PS in this unit is a switching unit and needs healthy caps to oscillate and create sub voltages. The standing heat in the unit makes the caps get hot, crown and leak. See any brown sputum on the top of a capacitor and it is on the road to failure.
This receiver is likely to be overheating or has a shorted speaker wire. If the unit is very warm when it shuts down then it is in need of some additional ventilation. Onkyo's tend to run hot so this is critical for proper operation. A speaker wire problem could also cause an issue when the unit detecs a no load situation.
i had the volume of the multi-zone tuned too high and was attenuating it in an external control box. Once i took the multi-zone volume down to -25db, the problem went way. My main zone was operating around -35db so did not have the problem.
Try first cutting system power for a couple of minutes, even from main. With some luck it can be enough to reset the system, as it looks like a problem with the control board. The control board has also a coin battery and a reset bridge on it , but to access them you need to take apart control unit. Try fist turning off main power switch for 5 minutes or so.
Try putting amp to zone 2 go to set up menu for "variable" volume adjust and turn down the volume with the remote control volume buttons or use the volume control on the amp,this should work,i had the same problem with a YAMAHA amp and this worked.
It sounds like a capacitor in the power supply is just about to die. With the power disconnected have a look at the large tin can looking gizmos near the power transformer. There could be a couple of them. Leave the unit switched off for a while before going near them they could still pack a splat. Replace them with the same value and make sure they're connected the right way and it should solve your problem.
Whilst in there have a good look for any other smaller capacitors which look as if they're getting rounded at the top. Replace them too.
Either that or dig deep and buy a new one.