Originally Posted by BIC2
Was watching Dunkirk 4k UHD on UB820. Paused it for a break, maybe 5 minutes. As I was going to play, seemed it went from pause to stop on its own. When I resumed, color was messed up on right half of screen (think psychedelic). Tried restarting disk, etc., no help. Only powering UB820 down fixed it.
I've had the unit about 3-4 months. Often have to press open/close button 2 or 3 times for door to function. Sometimes, when trying to skip chapters, FF, reverse, etc., the unit crashes. Think it's only crashed with UHD discs. Any thoughts on these issues? Defective unit? Thanks.
My UB820 has some odd glitching as well, symptoms different than yours. It's infrequent and I sort of chalked it up to the fact I shut power down to all my devices when leaving the room for the day with a Panamax power cleaner. (It's a long story which involves DefTech speakers that don't auto shut-down anymore). On my unit, sometimes after I power up the AC power to the 820, it just keeps scrolling ....please wait....please wait.... and never turns on. When this happens, I have to reach around and disconnect the power cord from the rear and reconnect it - which always rectifies it first try. It's very strange but I know as much as technology is getting better - it's also getting worse for reliability so I figure the odd glitch is probably normal.
I think if I had a problems like yours and it kept reoccurring, it would bother me more but yours could be more like a compatibility issue with other components or cables maybe? Seeing as there will be an output change when it goes into standby after 5min, perhaps your display or AVR device has problems reawakening when the 820 comes back to life? Try changing any settings that the 820 offers for standby characteristics as I know I fiddled with a few initially. (I was never happy that the Panasonics DO NOT have screensavers even though the firmware calls it a screensaver - Oppos did). This screensaver setting for instance is what the display will be when the player sits for the 5min - fiddle with it and others to see if the problem changes.
With regards to your opening and closing the door issues. Keep in mind that initially when you turn the unit on, door operation is sluggish as the unit loads. In particular, when I turn mine on I notice that if I hit the OPEN button right away the door will open but will not respond (will not close) as the unit starts loading settings. If I wait just a few seconds after turning it on, it's the same - will not open or close until it's done loading stuff. I've noticed that the door is inactive during some loading sequences and does not respond when you press the button. Not what your describing but maybe this info will help with your diagnosis of the machine. Until I noticed the pattern, there were times I hit the open/close button a whole bunch of times and started swearing at the unit and threatening to send it in for repairs. Now I know that while the unit is loading the door does not respond - I simply stay patient for 30 seconds after turning the unit on and I have had no occurrences of strange door behavior since. Note, there is a setting for quick-starting of the machine and it defaults to off. I think this controls things like prior disk content memory and such. I have not tried to toggle it on, but maybe turning on the quick-start feature would make the door response quicker?
Todays electronics are very complicated, I personally have always thought BR disk players are brutal - both because of the licensing they must adhere to and just the tech in general I guess. There is a lot of stuff that is NORMAL, and a lot of stuff that is FEATURES oriented. Some stuff could easily be GLITCHES that are just inherent to design/firmware. As a licensed mechanic, some customers are far more intune to regular operation of their vehicle than I am and they notice things techs do not. With good description we can identify an issue but sometimes the result is simply re-engineering that we cannot do. Make sure you identify NORMAL vs BROKEN before you return your unit, otherwise you'll be without it for weeks just to hear that there is "no fault found" by the repair center.
As a side note, I began my electronics interest back when my Father had a store and I was very young. Panasonic was simply the best back then with awesome quality product and even better customer support. Right up until 8 years ago I have stories about how wonderful their customer support has been. Things have changed though, at least in Canada. Panasonic won't support the product unless it's under warranty (or unless you pay for it) and the support department you reach on the phone is completely ignorant to both their product and technologies in general - all they do is read you excerpts from the owners manual and know less than us about what the features even do. I argued for 30min that the ub820 DOES NOT have a screen saver whilst the representative insisted it did because those are the words used in the settings and manual. It was not until I escalated the session to a higher tech and they contacted me back a week later that they agreed it does not have a screen saver!! (I asked if he could tell the department to add one in the next F/W upgrade but I doubt it will happen). I wish Yamaha offered an Oppo killer BR player, with Yamaha Canada's support team I'd buy that in a heartbeat, I've lost confidence with Panasonic these days mainly because of the horrible support.