Apple tv doesn't work when hooked up to denon 2311 receiver. Apple tv is turned on but tv screen displays the word

SOURCE: denon avr5800 with Apple TV

Get a new TV....Seriously

SOURCE: Denon AVR 2802

if the display did not lit and power indicator is flashing rapidly------you will have short circuit in speakers cables -----turn it off and remove short circuit cable-------or you have block in ventilation holes---------turn power off and leave it to cool down and remove anything block ventilation holes---and turn it on again after cooling---------another solution-------on screen display is set to off on system setup------turn it to on in system setup.

SOURCE: on screen display

Try connecting to the yellow RCA monitor output on the amp and corresponding input on the TV. This works for me. You could also try the composite outputs on the amp. This is one flaw the amp has that the setup screen will not display through the HDMI connection.

SOURCE: STR-DE475 receiver flashes "PROTECT" when turned on

Protection is usually a sign of overheating or something is wrong at the power amplifier's output.

Theory: Protection is a delay and sometimes an internal test to allow the electronics to stabilize during power up before they are allowed to interact with the speakers. The most common cause of it remaining ON is that a speaker cable pair is shorted. Some isolation is required...

1. Turn the Power OFF.
2. Disconnect each set of the speaker wires that are directly attached to the receiver. Mark them so you remember where each one went. pay special attention to which conductor is on "+" or "POS" and which is on "-", "COM" or "Ground". You may elect to disconnect them one pair at a time if your sytem is complex and you don't want to lose track of where things were.

Turn the Power ON. Is the "Protect" indication gone from the display?
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If YES, you have a shorted speaker wire or speaker. To isolate the specific cause:

1. Turn the Power OFF.
2. Attach ONE speaker wire pair at a time and test it by turning the Receiver ON. When the "Protect" light returns you have isolated at least one of the cause(s). Disconnect the defective speaker cable and continue isolation of all speaker cables. Visually examine the cable at both ends for frayed wires that could touch each other or contact metal on the receiver or other objects.

To isolate further within the cable/speaker pair - disconnect the speaker end of the cable on the failing path. Try another cable that you know works, or at least one that doesn't cause Protection to stay on.

If you're electrically savvy and have a Digital Volt/Ohm Meter you can troubleshoot the short(s) with it.
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If NO, there is probably an internal problem.

Is it solid or does it come on after the Receiver has been ON awhile.
It could be overheating.
Is the unit hot to the touch?
Is there a cooling device (fan)?
Is it stopped or clogged with dust?
Is there adequate ventilation around the unit for air to flow?
Clean any ventilation slots on the top and bottom of the unit.
Avoid stacking components that produce heat under an amplifier or receiver. Their heat rises. Also keep them away from other heat sources like like home heating vents and radiators.

Problem solid and NOT related to the speakers or heat: internal malfunction.

Let me know.

Mike LaPres

• 757 Answers
• Posted on May 08, 2009

SOURCE: My Denon Receiver AVR-987 keeps turning itself

That is a common problem for many receivers. Over heating, amplifier overload etc. Are you playing material through it at a very loud volume for an extended period, particularly with a lot of bass? If so try turning it down and/or defeating any equalization or turning the bass control back to zero. If you moved the unit make sure it is getting enough air flow and that there is no other heat sources near it or anything sitting on top of it.