It started 3 days ago the picture started getting darker and darker everyday then last night after turning the tv off which was off for several hours I turned it back on and a few min later there was a loud pop sound and the screen went blank and the LED for power light went solid red. I tried to hit the power button and could not get it to power up right away. it finally came up with sound no picture and it shut down after a min of operation

Sounds like lamp again-- dark pic. Get quality lamp, need 4 inch space all around TV for cooling. Maybe cleanout dust inside.

How long u have this RCA analoge tv?Around 10 years or more and used it like about 5 or 6 hrs everydays?Yes,than ur tv it is losing CRT tube radiation cohetion.As times go bye years in years out the tv CRT-(tv tube) radiation will slowly dying out,Tv actual pictures will lost some of it luster and it brightnesses to the tv auctual pictures.Brightnesses of CRT tube will get darker and darker until the tv actual pictures barely it is watchable anymore.Contrast,Brightness and Colors adjusting more will help some.But u have to take this tv aparts and take a Flat scerw driver turn up a little bit more of the tv HV-(high voltage) SCREEN button on the FBT-(flyback transformer) to make any big differences of the CRT tube brightnesses.The FBT-(flyback tranformer) is the big block of plastic with a red wire with a black cap hook up to the tv CRT-(tv tube).This adjustment on of the FBT,HV-SCREEN button will help the tv CRT-(tv tube) last another year or two.

It sounds like your lamp is about to die out,this tv lamps are good for 6000-8000 life hours which is a average time of 2-4 years old and with time the picture starts to get darker and darker until one day black screen. Try Encompass .com ; shopjimmy.com

There isa problem in CRT Board.Loose connection problem in vertical section.Need for resolder the board.

the high voltage is weak usually caused by a weak horizontal transistor or capacitors in the horizontal circuit

i have had this problem on one of my tv s all i did was remove the back of the tv and re-solder all the joints around the tuner (thats where the arieal goes) they go with time because the joints there get so hot . hope this helps
puggy

I am not sure what the problem is, but usually if a lamp is bad, the other 2 lamps will still function. Since you are getting no picture at all, I am thinking it is a circuit board problem. TV electronics are expected to last 3-5 years. After that, many components will start to go out one by one. If you have your tv repaired, I would replace the whole circuit boards instead of just the bad component. The power board is the #1 board I would replace 1st. This is the most stressed board and will cause most of your tv problems.

Sounds like you need to replace your lamp. The lamp number for this panasonic TV is TY-LA1001. Lamps run anywhere from $120-$250.

The tv has a room light sensor,
shine a bright light at it , does picture get brighter?
other wise when it is cool open the bulb door , is it coated or blackened, Don't touch bulb at all.

and a heavy covering of dust on internal mirrors will cause the same effect.
you will need help to clean it.

I have a two and a half month old Sharp, LC-19SK24U-W. It was fantastic with fantasic, clear, beautifully colored picture until two weeks ago. All of a sudden, the picture starting getting darker and darker. Nothing had been adjusted from day one when I set up contrast, etc. This comes and goes but most of the time is an issue. I can make it a bit lighter but then it is so fuzzy and grainy it is a very poor picture. Also, while this began, one time the television turned itself off and then back on without a power surger or anything.

HELP!