Denon AVR5805, main zone not working

SOURCE: Denon AVR-1907 blinking red power button

It sounds like you have a bad speaker on the zone 2, or you have the speakers connected improperly.

When you engage the zone 2 a relay clicks and the speakers then become part of the amplifiers circuit.

If the problem was in the amplifier, it would go into protect mode without even having speakers connected to it.

If the speakers all check good, you most likely have the wrong type of speakers, meaning the impeadance is too low, or you have too many speakers connected to it.

On the back of the Denon, you will see right around the speaker output jacks, what ratings the speakers should be. If I remember correctly, it says 6 ohms or more when using only "A" or "B", and it says 12ohms or more for "A" + "B".

If you have two 8 ohm speakers on the same speaker jack you now have a 4 ohm load. That is below the ratings and can cause the amp to shut down (go into protect). Since your amp shuts down right away, I think you have a bad speaker or way too many speakers connected.

I have seen many times when people will connect 2 or 4 speakers to the one of the outputs that are designed for only 1 speakers.

If you are using too many speakers you will need a speaker distribution box. It has a resistor network built into it so the amp never sees a lower impeadance than what it is designed for.
You can connect 4, 6 or 8 speakers to one set of outputs designed for 2 speakers. You do loose a lot of power to the speakers, but it is better than blowing up your amplifier.

If I can be of any further help, let me know.

SOURCE: Denon AVR-4802R automatically shuts off in multi-zone mode

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.

SOURCE: Denon AVR-2105

If the Cd is wired digitally, it will only play through the main zone, because the Denon cannot convert down to RCA to cater for the zone 2. If you plug RCAs from Cd to Denon, Main zone will STILL play from digital, and RCA connection will allow zone 2 to play Cd from RCA input....same with dvd, Satellite Blah blah... no stress, any nasty RCA will do if you want to try before you splash out on really costly cables...perhaps you can help me...want to run AVR 2105 with 2 speakers in zone 2, manual says cant do it - only ably to surround back or biamp...dont want either, dont have stereo yet to try it out...did you have any trouble with that?

SOURCE: Denon AVR-3805 zone 2 no longer working

time to reset the microprocessor. See page 87 in manual.
1) switch off the unit using the main unit's power operation (small power button)
2) hold the PURE DIRECT button and DIRECT button at same time and turn the main unit's power operation on.
3) wait for entire display to flash in 1 second intervals

now the speakers need to be set up again but zone 2 will be working. i suspect a power surge causes the microprocesser to be corrupted. i put a power surge protector and have not had problems (lately).

SOURCE: Denon AVR-3805 zone 2 no longer working

If no sound coming through Zone 2, steps that worked are below. Layout: Denon AVR-988 running in 5.1 mode with patio speakers designated as Zone 2: 1) check that patio speaker wires are connected to Denon's back surround speaker terminals, 2) check "Menu then "Manual Setup" and scroll to check that "Amp Assign function is set to "Zone 2". You won't get Zone 2 sound unless this is chosen in this instance. Also check the volume settings in the "Manual Setup" to ensure you haven't turned sound down by -40 DB or limited it. Now try turing on Zone 2 sound either on front panel or on rear of remote. If you still have no sound, what worked for me is there's a Zone 2/Rec Out pushbutton on front left top panel by round input knob. This must be set to "Zone 2 Source" and not "Rec Out Source".to avoid diverting the signal to the Rec Out jacks. Keep turning the input select button until it reads "Zone 2 Source". Then turn on and this should route the signal to your Zone 2 speakers. srhfish