I have had my receiver for over 3 years and it has worked
flawlessly. Recently tho, I am noticing 2 problems - the display
on the receiver sometimes, does not light up on power up (sometimes it
turns on after some play time).
The receiver also shuts off without notice and the power switch turns
red (standby mode?). Are these problems related? Please
help. Thanks in advance.
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Re: Receiver turns off, display does not turn on
Maybe, they are most likely related, but I can not be certain without troubleshooting it on my workbench.
These problems could be a fault of some solder connections being bad. Most of the time it is the power supply and amp circuit that have some very heat stressed solder joints and they need to be reflowed. The display problem may be the solder connections on the display board. You may see a pair of wires that go from the main power transformer to the display board, if I remember right, they are orange. That pair of wires should have an A/C voltage on it that powers the LCD of the unit. Where it plugs into the display board, it can have broken solder joints that need to be resoldered. It could be a problem with the power transformer, if you have a multimeter check to see if you have that A/C voltage when the display is out. See if it is the same as when it is on. That would help to determain what direction to take in troubleshooting it.
These unit are very difficult to take apart, the entire back panel must come off of it for you to take out the amp/power supply board. There are also a lot of screws in the board that hold it on the bottom chassis. Some screws go all the way to the bottom, and others go into a bracket of the chassis. The heat sink is also help on with screws that must be removed to get that board out. If you have any doubts about your skill level, you should just take it to an authorized Denon repair center as your first choice, if you have none near you, the best service center around would suffice. This is a very good receiver and it is well worth getting repaired. It would cost much more to replace it with a new one.
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Hi, It sounds like your receiver is still looking for audio on the coaxial connection, rather than the optical.
1. Make sure the optical connection is between your DVD player and the LD/DVD Optical In on the back of your receiver. 2. If you have a monitor connected to the receiver to show the on-screen display, click Setup from the main menu, click Input Mode, then, next to LD/DVD choose Optical. It may be set to coaxial, analog or auto.
Alternatively, choose the input source on the front of your receiver (LD/DVD), then press Input Mode button (bottom right, near the input selector) till it displays Digital Optical.
If all else fails, reset the receiver by: 1. Turn off the receiver 2. Hold down DISPLAY and PANEL UP/DOWN buttons and press power. 3. All Clear should appear on the screen.
Use caution, however, as this will erase all the settings in your receiver.
try turning the unit off in standby mode then hold down the enter button and then the power button for about 10m seconds that should reset the unit depending on how new the unit is it sometimes has a digital saftey setting but i doubt that would cause it to do what you are saying
There should be a thermistor mounted on the heatsink which will trigger the fan. The fan will not likely turn on if you are using your receiver for 2-channel music. Try using all amp channels by playing a DVD in DTS or AC-3 audio mode and crank up the volume - lots of bass will do the job. You can place a piece of tissue paper near the vent so you don't have to use a flashlight to watch and wait until it turns on. My receiver takes about 3 songs from the Eagles DTS DVD at high levels before the fan would turn on. As soon as the temperature is lower than the limit, the fan would turn off.