I just had the same problem. Turned it on, but no display or sound. Checked the fuses on the board and at least one was definitely blown. They're 125/250v 2A 5x20mm glass tube. Easily found them on ebay for $5.28 (free shipping!), plugged them in, and all is good again.
I absolutely love this receiver!
My overload problem has been resolved. I had to replaced the speaker selector(I called it a speaker controller in an earlier post). All my additional speakers were connected to this which was connected directly to my receiver. Hope this helps everyone else.
Wow, maybe its some kind of internal self distruct on these. Happened to me a couple days ago and sure enough my fuses were blown too. Going to hit the shack and see if it fixes it for me. Great find Myth.
The fuses are on the bottom side of the green board that's attached to the power supply (other side of power supply from the power cord). I'm off to radio shack now to see if a couple of fuses fixes the problem.
I checked that - good suggestion, but not the solution.
I got the flashing overload message once, and immediately shut the amp off.
Turned it back on a couple of more times and the display gradually got dimmer. I'm thinking that there must have been some kind of stored charge keeping that going for a bit longer, but whatever part of the unit that got tripped is still switched off [hopefully not for good].
There is still power to the LEDs on the front [power, unit selection and the aforementioned speaker 1/2] but no display to the main screen and no audio [except for a very distant ouput through the subwoofer]
The JVC RX-884VBK is a great machine, I had it for over 5 years and had no problem at all. I came across the (NO SOUND at all) and I believe it is an easy fix. Check the Front left, there are 2 keys marked 1 and 2 for SPEAKERS output, sometimes you don't notice that you connected the speakers to 1 and the 2 key is pressed. You could have both keys pressed and you will get the sound. I hope that helps.
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Make sure the speaker is good by connecting it to a known good working site. If speaker is good, make sure it is properly connected to center speaker terminals. Then if it is a surround receiver make sure that the sound mode is one where the middle channel works such as 5.1 DTS, etc. If the center channel still does not work then the problem lies with the decoder chip that is not working properly and sending the center channel info to that specific amplifier.
First of all, it is bad form and potentially dangerous to be changing cables with speaker power ON. Second, IS the unidentified TV passing audio out those jacks? Its own audio menu and controls may be between the sound and the jacks.
Make sure the speaker select switch is on "A or B or AB. It's a small button on the front panel of the receiver (pen sized) and will give you visual feedback on the LCD display. If they are on, you need to have the unit bench tested at an audio shop and possibly repaired. Hope this helps
there is a bulb inside the backlight on the lcd display.it is 12 volt and alot of manufacturers run it from the +- 15 volt preamp power supply,on the plus rail.when the bulb burns out it can activate the dc speaker protect,or some other 12 or 15 volt circuit..if it is a flourescent display that is a different problem.those run on 5 12 18 and -32 volts.there is also a 6 volt ac filament voltage.you need the schematic.
Usually, a subwoofer will have its own built-in power amplifier. Thus, it will be designed to plug into a standard RCA jack (the type used for DVD players, etc). rather than having wires to connect to a speaker terminal block. Look for a jack on the back of the receiver called "Subwoofer", or simply "SW". If your subwoofer has 2 single wires, it WON'T work with your reveiver's subwoofer output, as this output only carries a line-level signal and is not amplified. You would need a separate power amplifier for this type of SW. If your SW speaker has a DVD-type plug, it should work fine with the receiver's SW output jack.