Same thing happened to me, and I was very puzzled, as the h/p on off only flickered on briefly, and there was nothing in the manual that explained it. troublshooting was also not helpful. Clearly the AVR was able to sense input, but nothing to any speaker.
When seeing solutions here it made sense h/p = Head Phone. Simply blowing in the head phone socket turned it off and fixed it. I'm sure plugging in headphone would also work
Denon av 589. I have had this problem for a month loose sound and control panel a & b speaker unable to switch. Every now and then rapid clicking and speaker on - h/p on. Searched on speaker on no results and unable to find what speaker on was telling me. To night tried putting in a head set from a freind as have never used this feature. Since then no more trouble. Found this site after searching h/p on.
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You can access the set up mode menu if you have the TV mode.
The DVD should be hook up to the TV using A/V inputs using yellow, red and white cables and select A/V 1 or any other input where the cables are connected to.
CLEARING THE SECRET NUMBER
If you forget the secret number, clear the secret number using the following procedure.
1 Select an item from the list below to display the secret number input screen. (For operating the on-screen
display menu, see page 17.)
• "EZ Setup", "CH Setup", "Parental CTRL" or "Reset" on the Setup menu.
• "Color System" on the Option menu.
• "Software Update" on the Digital Setup menu.
2 Press and hold both CHr and VOLk on the TV simultaneously until the message appears on the screen.
We need some information about your setup and exactly what menus you are accessing to give an accurate response.
Laptop or desktop?
Which operating system ? Windows, Linux, mac ? Version numbe?
What preference dialogue window did you access ? One for video inputs settings perhaps?
- the black screen “ lag” sounds like the system trying connect to a different port but fails to find signal and reverts back
BIOS is Basic Input Output System. On startup, before the windows screen comes on, you need to press one of the F# keys to enter the BIOS/setup screen. On my PC I have to press F2 to enter the BIOS/setup screen. The delete key can also take you to this screen on some PC's.
First, does your TV have HDMI connections? If so, you need to connect your home theater to one of those (it doesn't matter which one, although I would choose HDMI1 (you will, of course, need an HDMI cable for this). You will see nothing on your TV screen until you make that connection. Once you do, using the Electro remote, you should be able to access the "set up" menu.