Hi, our Panasonic Viera TH-42PX600B is about 3 years old, previously no problems but now the menu and channel info keeps freezing. I can't get into the DVB update menu to see if an update will help as menu page fails to load and pressing exit/any other button has no effect. Channel info is slow to load and we keep having to switch the TV off to clear the screen as its so slow to load it just gets stuck on the screen. Any ideas?
Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.
SOURCE: Have no volume on only one channel on Panasonic TH-42PX60U
Try the SAP - same thing happened to me and had to cycle through the audio tracks to get audio back on for that one channel. Good Luck!!!
SOURCE: Panasonic viera has flashing channel info in upper left corner
I had this exact same issue just yesterday. Channel info would flash
intermittently. While set was in this mode, could not enter menu,
change channels, etc. from remote or front panel controls. Similar to tjh492, I thought it might be an
overheating issue. But unplugging the Viera and waiting for set to cool
made no difference.
I then remembered that this issue popped up the instance I surfed to a
particular channel (FWIW, 26-3 "Me Too" on Comcast here in Aurora,
Illinois, USA). I had a hunch that there might be an issue with the
signal on the channel that prevented the Viera from properly syncing,
so I decided to unplug the antenna cable. Once I did that, the channel info
displayed steady. I was then able to change channels (of course screen
was blank as antenna cable was unplugged) and enter the Viera menu. I
immediately went to channel set-up and manually removed channel 26-3
from the channel list. After reconnecting cable, Viera was back to
normal. Since I'm not a big fan of "Me Too", problem solved :)
Not sure why a digital channel sync issue would effectively make the
Viera remote and front panel controls inoperable. Pure speculation, but it could
be that the Viera microprocessor was overloaded trying to sync to channel and this prevented any interrupts from remote or front panel
controls.
SOURCE: I have a Panasonic Viera TH-50PZ80U Plasma TV for
The A board is defective. Part # TNPH0721AFS $232.95 click on http://www.partstore.com/SearchResults.aspx?q=TNPH0721AFS&x=24&y=8
SOURCE: Panasonic Viera TH-50PX60U Plasma is stuck on one
Forced to factory default: press and hold [VOLUME ( - )] on the TV and press [MENU] on the remote 2 seconds. Exit: Unplug Power to reset.
If it does not help, the main board need to replace. For further questions, please add your comment.
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SOURCE: how do you delete unwanted digital channels we
Go to Setup, Tuning Menu, Analog Program Edit, Select the Channel to Edit and set it to skip the channels you don't want to see anymore.
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