Denon AVR-E400 - Page 9 - Answered Questions & Fixed issues

the red flashing LED is that the Device is in protection mode.
the internal power supply . +15 volts and -15 volts are defected you need to be replace it ... Regulators 7915 and 7815 .... these you should change , might also need to check capacitors .
these are common defects for Denon . AVR units.
Good Luck
Hope this helps

Denon Audio... | Answered on May 28, 2016 | 479 views

If you know you model number you could try using the following website.

Just enter in the manufacturer and model number of the remote or receiver and this website will search several websites on the internet for a compatible remote. Best of luck!
Looking for that lost remote control

Denon Audio... | Answered on May 16, 2016 | 38 views

Connect a lead from audio out on the TV then to the desired input on the amp. Then go to audio menu on TV then select external speakers.

Denon Audio... | Answered on May 03, 2016 | 115 views

Too expensive to repair. Don't waste your $. Craigs List has hundreds of these for well under 100 bucks. Get one mfged in Japan not China. Circa 2007 and earlier.

Denon Audio... | Answered on Apr 08, 2016 | 110 views

Cheapest solution - Get replacement front channel speakers on Craigs List with larger woofers (10 inches or more.)

Denon Audio... | Answered on Apr 08, 2016 | 116 views

Use the DTS button to select Digital inputs.
optical or coaxial.
if you are using HDMI use selected video input.
hope this helps
good luck.

Denon Audio... | Answered on Apr 03, 2016 | 98 views

you can choose any input on the Denon and select it from the front panel
setup the Equalizer and the preamp connections and plug it in the selected input on the Denon.
Thats it.
if u haveany Questions dont be a stranger.
good luck

Denon Audio... | Answered on Apr 03, 2016 | 173 views

There can be belts in the tray just like in a CD player to control the moving of the tray. Once they get lose the tray can not finish it's cycle and if it can not the tray will reopen. There are limit switches in these units to tell the computer what state it is in. If these switches get dirty or become defective the signal to the controller will never know the tray is in. It needs professional service.

Denon Audio... | Answered on Apr 03, 2016 | 482 views

There is always a constant 5v for the device to go to standby.and power on when you press the power button .
This flashing is not to reset the device it shows that there is a problem with power supply.
the regulators are burned or over voltage ...
it needs service .
hope this helps
good luck

Denon Audio... | Answered on Nov 12, 2018 | 912 views

possibility of turning off
there are several cases.
1.short circuit on one or more of the speaker wires.
2.overload and over heat turns the protection on. need to be re-soldered.
hope this helps

Denon Audio... | Answered on Apr 02, 2016 | 61 views

1) turn off the main power button (not the big LED stanby button)
2) press and hold "input mode" and "speakers" button simultaneously
3) press and hold the main power button for seconds, until display flashes.
4) release all those buttons. The AVR is already reset to factory mode.

Denon Audio... | Answered on Mar 28, 2016 | 161 views

Yes it is, definitely.

Denon Audio... | Answered on Mar 26, 2016 | 86 views


What is the model number of this receiver? It could be in Protection Mode. Is power button on the unit flashing red? If so, that's protection mode. It could be as simple as a speaker wire got crossed or cut but it could also be something internal.
Step 1: Label all wires plugged into the receiver so you know where to put them back.
Step 2: Unplug everything, including the power cable.
Step 3: Leave it unplugged for 10 minutes.
Step 4: Plug in *just the power cable*
Does it still click? If so, it's an internal component that's bad.
Does the clicking stop? If so, add one wire at a time, waiting 1 minute before plugging in another wire. Keep adding wires till the clicking comes back. Once the clicking comes back, unplug the last wire you plugged in. That wire has a problem. It could be the wire itself or the device connected to the wire. If it's a speaker wire, for example, it could be that the wire got chewed or cut, or it could be that the speaker got fried inside.

Denon Audio... | Answered on Mar 26, 2016 | 154 views

Liz, gently .. gently but firmly pull open the draw by hand and remove the cd

Switch the unit off.

Switch it on.

Hopefully all will be ok.

Denon Audio... | Answered on Mar 12, 2016 | 145 views

Sometimes it is a simply little microswitch or a switch that looks like 2 brass little small thin long somewhere on the side where can under or in the middle where the tray this switch should activate , this part can be simply broken or oxydated, that is a switch that recognized there is a cd loading and makes a autofocus to the laser to read the table of contents all thing also the moving of the laser in this action is timed.

Maybe this can celp

Denon Audio... | Answered on Mar 04, 2016 | 311 views

Joyce, Only if it has HDMI connection.

Denon Audio... | Answered on Feb 27, 2016 | 103 views

All you need is some speaker wire long enough to get to each of the speakers your running. Use larger gauge if your running big speakers hard and/or over longer distances. Otherwise a medium gauge (16) will do fine.
You'll also need all the cables required to connect external components.

Denon Audio... | Answered on Feb 26, 2016 | 35 views

voltage ha a large bearing on the wattage
electrical law is volts, amps ( watts) and resistance
check the voltage of the machine

Denon Audio... | Answered on Feb 11, 2016 | 64 views

a small amount of white lithium grease is usually what is on plastic mechanism parts.

Denon Audio... | Answered on Feb 09, 2016 | 137 views

I had the same problem with my subwoofer unit. I found the zener diode ZD3 was fried. The pic below shows the diode and its clearly tagged ZD3. You need a multimeter to check this before you order anything. This diode should only transmit power in one direction. Its size and spec is 18v .5w zener diode. (that's 1/2 w) It's very inexpensive and the whole repair took about an hour. This is from a Boston Acoustics subwoofer MCS 160
Ok..the procedure is easy.
1) unplug the unit and bring it to a well lit work area.
2) remove the panel from the back and locate the board that is held to the panel by 4 screws and has the ZD3 diode. The pic below shows the diode at the end of my test lead. Note the direction of this part and reinstall the new one in the same direction. Its a simple de-solder and re-solder project. I elevated the new diode about 1/8 " from the board with a small strip of copper. This acted as a heat sink during the soldering and elevated the part above the board to help it dissipate heat later when in use.
3) re-install the board and plug in all the connections.
4) this worked for me and I'm enjoying my sound system again!..good luck0482b949-8492-43a6-91df-0fb2f0e6888b.jpg

Denon Audio... | Answered on Feb 04, 2016 | 6,524 views

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