Not that I know the solution, but I had a FIAT convertable with similar behaviors...if it was dark, the lights might not work, if it was really humid (rainy) the wipers wouldnt work, if it was super cold the heater wouldnt work. Youd be driving down the road and the engine would just shut off. Pull to the side of the road and in 5minutes it would start up as if nothing had happend.
So who knows, electronics are crazy, try just keeping the thing on. Dont switch it off if its working...unless you dont really need it. I have a Sony bookshelf stereo unit in my garage that does similar things, if you unplug it or if the power goes out, it wont come back on, you have to plug, un plug, plug it several times for it to power back up.
Freekin ghost in the machines kinda moment.
In '02 I bought a Magnavox HTiB model mrd-200.
For some reason the system will power on and the dvd player will work just fine, but I will get no sound from the attached speakers and the sound outputs will fail to transmit as well. Sometimes it will work and then all of a sudden make a 'boom' sound and I will have no sound. Sometimes it will randomly click back on as well. I have been having this problem for two years. It is out of warranty and i am sure that it is not even worth taking it somewhere to be tested.
The system is down in my basement, which gets slightly cold in the winter months. However I doubt this is a problem in the sense that all of my other electronic equipment is completely functional.
The sound has not worked since early december, until today I turned it on and blocked the vent. 3 hours later, the sound came back on and it is back to its working ways.
I have already bought a much better 6.1 receiver, but I was wondering if anyone has any ideas of what could be causing this problem? I am not sure if blocking the vent helped it come back on or not. Sometimes it comes on when I block the vent and sometimes it does not...