TCL TV model T-68T17 less than 2 years old. The picture is way too dark. I adjusted the "bright.. color.. settings to manufacturers specs, but the picture is still too dark. Would appreciate your input.
Keith T ( info @ 15ddc.com )
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with a flashlight at the back of the set often times there is an adjustment you can make WITHOUT having to open the set!!!
look for a little hole in the back of the plastic cabinet labeled SCREEN then with a flat screwdriver holding only the plastic handle, insert it into the hole and SLOWLY rotate until the screen brightens up until it is watchable.
This is compensating for age in the picture tube. you may get a few day or a few more years! of a much better picture.
If you start seeing some thin lines on the screen then back off you have gone too far. Do this adjustment with the brightness and contrast controls on the menu turned up all the way.
it is also safe to play with the focus adjustment right next to the screen if thing seem a little blurry. you will need two people one to watch from a distance for best picture.
Having same problem now for a second time on a 57T500. First time was a bad green bulb that was covered under warranty. Only lasted 2 years....currently debating wether to fix or buy a new set. Bulbs cost about $300. Set is only 5 years old, so very dissapointed with quality.
you know it sounds like the same problem i had....
look this is something you can try.... "turn the tv off and unplugg it!!!"...you'll need to take out the lower front part of the tv......(where the speakers are to be exact) on each lower end you will find 2 screws..Be careful it will open to the side and there are many wires, i suggest you mark them to know where to put them back...then right in the middle there will be a black cover with about 5 screws..take them out....and look at the very bottom you'll see a thing with 6 pegs....the top ones are for the screen "DO NOT TOUCH THEM"...the ones on the bottom are for the colors...re adjust them...the left one it's for blue, the middle one it's for green and the last one it's for red...
I had the same problem after i moved....and after i re adjust that the tv looks super...
i hope that helps..:P
# 1 above you have covergence problems ,there is a service flash from rca to fix your fault,ask your tv shop. fault # 2 above turn off the color and adjust your screen settings for a grey picture,set brightness and contrast to middle settings. # 3 fault read #1 cause if your auto focus will not correct you require service there is a harness connector that looses connection and causes several fualts on the 52" rca's you can repair the fault but if you miss the harness replacement you will do it again.
You may have a bad Fly Back transformer. The focus and screen(brightness) controls are located on this transformer. Some of the new RCA's have had problems with this transformer.
If the screen control opens up the picture may either go dark or light which would cause your problem.
Also a bad Picture tube could cause this. It shouldn't since the tv is not very old though.
I've seen a few new ones go bad.
i dont know this exact model, but i can advice you based on a slightly diffrent model. i hope the solution will be valid for your model as well:
TV is digital controlled and have to be adjusted via service menu
except the external focus and screen on back of (flyback) high voltage transformer.
This is one you can try: Need plastic allen or plastic small flat
blade screwdriver to fit these. Focus is top, bottom is the screen
that set the overall brightness. Before adjusting, go in menu: press menu once, select picture quality, I think number 4, press 2 for "preset..", press 2 again to select normal. Back out by pressing zero repeatedly. It may ask you to save new settings, select yes.
If screen is adjusted too bright, picture look lousy (washed out) the blacks will light up (becomes grey, or visible lines) this means you have actual fault that prevents you to get decent pix, that when it is time to take it in for repair.