20 Most Recent Panasonic TH-42PWD7UY 42 in. EDTV-Ready Plasma TV Questions & Answers

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RGB is for a computer screen display signal and has nothing to do with TV display of channels. You must have a Component hook up, it is a yellow cable, a red and a white one. Yellow is video signal, the red and white are sound.

Hello,The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board. You might be lucky it's just a blow fuse. Also a defective transformer can cause your TV not to power on.All these can be checked on the power supply board.But more often bad capacitors causes problem on the power supply board. I do not think the power board needs replacement, rather those defective capacitors is causing this issue. Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors). After replacing these capacitor(capacitors) most likely the normal operation will be restored. Or you can by a refurbished complete power board to save you some stress.Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.I hope this helps.Regards

Make sure the cable is hooked up then press ok on your remote (or enter). If you have your tv hooked up a different way (like hdmi) just change the tv source to the correct one.

Used ur remote find a button said CC on the remote.Turn off all CC1,2,3 captioning should stop.Or go into ur tv menu find out,where are captioning turn it all CC1,2,3 off.

are you on the right input. To use this set as a monitor you do have to change some settings in the options part of you tv. Also you need to make sure the set is on the right resolution for the PC. check you video options on the PC, and make sure they are the same on the TV set. Also you will not get sound from this type of cable..good luck

Be sure the 3 video wires are color matched on both ends. Try a different cable. Connect another device like dvd player to that same Component input if it's ok then cable box is the problem. If still B/W then replaced a/v or main board.

See page 16+ of this:
http://www.cisco.com/web/consumer/support/userguides2/4003114.pdf

it might be coming from the actual audio/video source. try hooking up a dvd player or gaming system and see if it still does it.

To solve need more info if this is still a problem.
Is your comcast dvr connected directly to the tv, and also the DVD connected directly to the TV?
If so then you will need to change the input selection on your tv remote to determine which inputs these devices are connected to.
If you are connected differently, please post how your devices are connected.
Dale

As posted for a similar problem:

This is an issue with IC 803 on the Z board. This is a 3.3 V regulator that supplies this voltage to the slot card cage. Most input boards use this voltage EXCEPT the component board which is why it keeps playing along whike the DVI, HDMI, or composite signals will cut out after warm-up.

This is a surface mount multi-pin IC and is a bit tricky to replace.
The entire board is PN# TNPA3198xx with suffix determined by what model 7 series plasma you have.

This was a problem from around Nov. 2004 to Mar. 2005

T Wiz

You cannot drive both from a single cable. You require a dual LNB fitted to your dish (replacing the single LNB). This has two cables out , one to sky and the other to the TV. If you have your own dish this should not be a problem.

I know this may be a stupid question that insults your intelligence but Are you sure you have the audio cable plugged into the proper jack that corresponds with the chosen video input. Other than that you may have to go thru all the menus and look for anything that may be shutting down the sound on that input and the DVD player menu for anything. If you don't know what it is post it here and we can aswer it for you.