Originally Posted by earwit
The D2 sometimes shuts itself off a few seconds after powerup; after this initial shutoff and my immediate repowering of the unit, it never spontaneously shuts off again. This happens approximately one out of every four times that the unit is powered up. This spontaneous shutdown problem never happens again after the D2 has warmed up.
Has anyone experienced these issues, and how did you address them? Thanks in advance for any advice.
I used to have the same problem with my D2, I've learned when I power up
the unit I hold down the main power button 2 to 3 seconds, and since then
have never had the problem of the D2 shuting off after intial power up..
If I hold the power button for a split second, it's likely to power off.
That's interesting! Are you talking about the Main power button on the remote or on the front panel? Are you using the Anthem remote or some other, programmable remote? If you are using the Anthem remote, have you tried the second remote that came with your Anthem to see if it does the same thing?
I wonder if there is a problem with the cold unit misreading a remote control code as power down instead of power up? I.e., this could merely be a remote control problem rather than something more serious with power supply or whatever.
Now these two codes are different (i.e., two different buttons on the remote each producing a unique code, rather than a single power toggle button/code), but if this is what's going on then there are some things to try.
The remote probably sends the Power On code more than once for each press of the button (this is typical for remotes), and if a trailing one of those is getting mis-read as Power Off, then the Anthem may queue it up and execute it just after it powers on! Or the remote itself could simply be faulty. The remotes are electronic devices too, and some small percentage of them will fail.
So for example, you could go into Setup / Triggers & IR & RS232 and make sure the internal IR sensors for the REAR IR control ports are turned off. There are situations where the light from a remote can penetrate the vents of the chassis and be picked up, perhaps incorrectly, by those internal sensors. As the unit warms up, those sensors will see the heat of the unit itself and be less sensitive to the infrared light from a remote.
If you are using a programmable remote, you could set the remote to only send the Power On code once per press of the button. If it is getting misread you might have to press the power on more than once, but at least it wouldn't power right back down on you.
If you are using the Anthem remote, try the OTHER Anthem remote, or try powering up using the front panel button to see if a momentary press works reliably.
If anyone has success with these suggestions, please do post your results here.