How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Aric Your Own Question
Aric, Engineer
Category: Home Theater-Stereo
Satisfied Customers: 44442
Experience:  15+ years in the field. Owner of AV Installation, OEM and Repair company
Type Your Home Theater-Stereo Question Here...
Aric is online now
A new question is answered every 9 seconds

I have a pioneer vsx 830k with a flashing red MCACC lighy,

Customer Question

i have a pioneer vsx 830k with a flashing red MCACC lighy
JA: Sometimes things that you think will be really complicated end up being easy to fix. The Home Theater Technician I'm going to connect you with knows all the tricks and shortcuts. Tell me a bit more about what's going on so he can help you best.
Customer: unit on blinks the mcacc light no display no sound
JA: Is there anything else the Home Theater Technician should be aware of?
Customer: no
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Home Theater Technician about your situation and then connect you two.
Submitted: 1 year ago.
Category: Home Theater-Stereo
Expert:  Aric replied 1 year ago.

Hello, and sorry you're having problems. We are now connected on this website- which saves you money over having a Tech come to your home, and in many cases we can fix the problem you're having. In other cases, these things do require additional parts to fix. But I can help you with that as well.

How long have you owned the Pioneer for and when did the problem occur?

Generally the MCACC light blinking means there's a short sensed at the speaker output terminals (meaning either a speaker, or speaker wire is shorted). However it can be caused by several things.

Are you able to get any response at all from the setup menu, or change sources, etc. on the Pioneer?

Also how long have you owned it for and when did the problem occur?

Feel free to reply back if you need more help, or want to reply back with more details. It does not cost you anything more to reply back once you've rated. Please do rate me positively (at least 3 STARS) and I will continue with you until this is sorted. The positive rating ensures I am credited for my work.

Expert:  Aric replied 1 year ago.

If you need assistance with this, please reply back with some of the details requested and we can proceed.

Customer: replied 1 year ago.
two days speakers less than a month old and worked fine in my old pioneer receiver. speaker ohm out betwwen 6.1 - 6.3 ohm .i was connecting it today had it playing and then accidentally stepped on the power strip switch. that when the unit power off and started flashing the the red mcacc light
Expert:  Aric replied 1 year ago.

Thanks for the reply. Please unplug the receiver from power, then disconnect those speaker wires, re-strip and reconnect them. If you're getting the MCACC right away, then the receiver is sensing a short circuit- either at the speakers, or internal to the receiver.

If the MCACC comes up again, then please let me know IF you can access the MENU's in the Pioneer. I had asked that before, and am not sure if you are able to. Reason being is we will need to reset the processor in the unit, but we need to access the MENU to do that.

Customer: replied 1 year ago.
cannot see a display only the red light. i dont have any of the speakers connected right now and it still flashes
Expert:  Aric replied 1 year ago.

Okay, this isn't looking good. Please unplug the unit, then plug it back in. Press and hold "ENTER" on the front of the receiver, while pressing "Standby/Power" once. Tell me if the display shows "Reset". If not try that once more, since it's the only possible user fix we have here. Offhand I have seen these units fail with only a quick power cut as a catalyst. It's not "normal" for them, but is not uncommon either.

Expert:  Aric replied 1 year ago.

Any response at all when trying to do the reset?

Customer: replied 1 year ago.
still the same
Customer: replied 1 year ago.
the light comes on immediately after being plugged up
Expert:  Aric replied 1 year ago.

I'm afraid this indicates a hardware failure within the receiver. With no speakers or wires connected to the unit, and trying a hard reset- there is nothing else you can do. The reset supersedes all other settings and adjustments within the unit and if it's unresponsive, then it requires service. Unfortunately you will need to send the unit into Pioneer to have it repaired under warranty. You can use the link below to locate an authorized service center if you'd like. Other than that, I'm sorry for the bad news and wish there were a quick fix.

If you need further assistance let me know. Please do not forget to click at least a 3 STAR RATING, at the top of the page for my efforts. You can follow up at any time if needed.

Expert:  Aric replied 1 year ago.

Just to make sure, you're trying that reset with No speaker wires connected to the rear of the unit, and also no HDMI cables connected- just the Pioneer plugged into power correct?