Digado-Actually I do have a good idea what is happening with the es-30, but feel kinda sheepish talking about here, on this EZ-17 thread. But since you posed the question here, and after a search I did not really find any EXTENSIVE thread on the es-30, here goes:
There is a bug on the es-30 that I discovered years ago. I could also repeat it, and tried to get Panasonic to correct it, but no luck. Even back then I could not get them to fix bugs I found! This problem effected all 3 of my 3 es-30's, so I'm sure I just don't have the only machines with the problem.
The bug involves the timer again.(I guess sometimes things don't change..) Anyway if a person programs the timer for a DVD event, does not insert a recordable DVD and then turns the machine off, the next day you will have almost an impossible time turning it back on.
The first time I did this I had an event programmed in for 1 week into the future. I was using the DVDR for playing DVD's daily, and knew the event was not for a week in the future, so after playing the DVD I did not put a blank DVD in the tray, because I knew I would just be playing another DVD tommarow, and would only need to remove the blank again. Well the next day I went to turn the DVDR on and NOTHING. It had the clock along with a little red clock time icon lite(which should not have been lite since there was no blank DVD in the tray). I tried everything, power cycle, 30 min. unplug, bang on all the buttons, etc. I was panicking. My new $300 DVDR and it just sat there unresponsive. In desperation I called Panasonic, they had me try all the reset methods etc. all to no avail. Finally they told me to leave it unplugged overnight and try it in the morning. I did this and it was still unresponsive in the morning. So I called Panasonic back, the next person had me try all the previous things, still nothing. Finally he gave me a RMA number and was giving me instructions to send my new DVDR in for service, when he said, try to put a VHS in.
Well I did that and wala, it came on in full glory.
From then on I never left a VHS in the machine during power off. I figured if this ever happened again(which it did many times before I figured the bug out) if I did have a VHS in the unit, it may never wake up since I could not insert a tape to wake it up.
The bug turned out to be if you had a schedule programed in to record to DVD for a future date, and turned the machine off, with no recordable DVD in the tray, and tried to turn the DVDR on the next day, NO go. Now if you just turned the machine back on the same day it was fine, it had to do with midnight again. In this bug the clock icon was a good indication of what was going on, unlike the timer bug on the EZ-17. On the es-30 if you turned the machine off, with no disc inserted and a timer event programmed, the clock icon would not come on. As it should, it is telling you there is a problem. The bug happens after midnight when the icon then comes on, which it should not, since there is no disc inserted.
Digado-does my chain of events for your unresponsive es-30 fit your case?
And no, Panasonic never did fix this ES-30 bug, I tried the latest firmware a few years ago, and still the bug is there.
I did call Panasonic back years ago to tell them my findings and suggested they should pass the info on, for any customer calling with the same problem, but I got the opinion that my info stopped at the CSR I was talking to....
Nothing like reinventing the wheel with every call!!
Maybe there is a similar problem with your EZ-17, although personally I have not ran across it. And since it has no VHS to wake it up, I wouldnt have a clue how to wake it. Please document the occasions your EZ-17 does this, and try and figure a pattern. I have quite a log on all my Panny's documenting problems I've had. It sure helps for troubleshooting, something I would have hope the manufacture had done!!! You know, QC, product testing, all that stuff.
P.S. Sorry for the length of this post. It's just that I have never documented this problem before at AVS or any forum. I thought it might be helpful to someone. I suppose I should document on my "timer bug" thread, even if a bit late. To tell the truth I had actually forgot about it, until you brought it up. Probably not a lot of es-30 users out there anymore.