For the last 2 weeks our PVR has worked fine only about half the time. It will suddenly cut out: picture and sound disappear and the pushing the MENU button the produces zip: no signal strength screen or anything. When it is working our signal strength is 89. Is the PVR unit faulty? Where to find out if it can be repaired? It is about 5 years old and is a model 9200 used with a Bell dish.

The tcon board or the LCD panel is faulty. You have to replace the TCON board to confim the fault.

If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/

Yes There is a vent in the fuel tank. It is either in the filler cap or a separate hose. Sounds like ti is plugged up.

If you can quickly get to menu before picture goes blank, then go picture / backlight / set backlight to minimum and it will work fine.

TV was working fine, moved to new home and the problem began. Picture rolls to the right, picture is fuzzy and will clear up somewhat at times. The picture will stop rolling at times also,but may be a half and half screen. Sound is fine, can you help me with this problem please.

It seems that the "backlight" has gone bad. "Backlight" is the device that allows to see the picture in an LCD TV, when they are about to go bad the symptom that you describe is very usual. It depends on the tv manufacturers and model to expect how long the "backlight" is going to last in a tv.You can shop around for a replacement part and try to do it yourself or take it to an especialized technician. Good luck..

Its probably the update. Samsung has had a history of pushing updates then having to send a new one to fix the last one. Sites like AVS forums are full of good info. If there's alot of people having the same issue it helps you identify the culprit. In these situations there's only 2 possible culprits the update or the player itself. If its still under warranty take it back and confirm its the update. Or, wait for the fix.

Check your video cable or any possible switches you may have hit on the remote. Make sure its on the correct setting for the tv.

You need to turn on closed captions through the menu of your PVR. To have it on all the time, turn the box off, press menu on the front of the box, and scroll down to captions.
This should fix the problem

have a 42 inch rca 42PA30RQ NO PICTURE OR SOUND WHAT CAN I DO MY SELF BEFORE SPENDING A LOT OF MONEY TAKING TO A REPAIR SHOP

Hi, Probably you first have to determine if the "no sound" is the TV or your source (cable box). Try another source such as a DVD player hooked to the audio/video inputs of the TV, if still no sound then you have confirmed that it is the TV, if there is sound, then it is the cable box (in some cases it may be just the cables connecting the cable box and the TV; try wiggling it a bit, might just be loose). If it is the TV, go through the routine of the setup/menu; look for audio, stereo, SAP, etc, try different settings (pls log down original setting in case no change and you have to revert back). If all else fails, try the "thump test" this will help you determine if its a loose/cold solder problem inside the TV. Give your TV a good whack at the side, top or back, if sounds comes on even briefly, it's a loose/cold solder problem, if not then you probably have to have the unit serviced by a qualified professional. Good luck and kind regards.