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blue screen means 'no signal' or 'signal level is too low' whereas black screen means that there's a signal. Check your antennae, do a factory reset to your unit and then try initial setup.
I know the colors are all messed up.But the tv LCD screen panel light it is bright enough to see the screen picture,and the tv LCD screen panel are clear,no purples,reds marks or bruses to the tv LCD screen panel itself?Yes,to all of these.The tv can be fixed.The tv Tuner signal board,that the board where the incomming broadcasting signal wire plug into it.The tv Tuner signal board it is dying and the problems to causes this.U have some basic mechanicals skills like take things aparts and putting it back together again?Yes,tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish tv Tuner signal board for the replacement.Will fixed this tv and get tv this to be working normal again.
This problems ur tv are having are only can be causes by two boards,the tv power supply board or the tv Tuner signal board.The tv power supply board that the board where the power a/c cord plug into it.The tv Tuner signal board that the board where the incomming broadcasting signal wire plug into it.This problems very easy to fix.If it is the tv power supply board is the causes,because u can check the tv power supply board carefully u will find dying capacitors parts that will bulging up or puffing up on to it tops.U have all the tools and know basic electronic just replaced all the dying capactors for all new capcitors parts same micro ferit but the capacitors voltages like 5 or 10 voltages higher for better heat resistance for the life of the tv power supply board.If it is the tv Tuner signal board,very hard fix and determine where the dying parts are in this board,because this board is cover with many ICS chips on this board.If the tv the Tuner signal board is the problems best just buy the whole refurbish tv Tuner signal board for the replacement.Or u can tries websites like Shopjimmy.com,Ebay.com to buy the whole refurbish tv power supply board too,if u don't know how to or have all the tools to replaced those dying capacitors parts and also can buy the whole refurbish tv Tuner signal in these two websites too.
This problems,it can't be repair.The tv Tuner signal board is problems and the the causes.The tv Tuner signal board have intermittent problems.That the board,where the tv incomming signal cable plug into it.Tv is still useable wright?Use it the tv as is.Or only way to repair it is to do a replacement of the whole tv Tuner signal board to fix this problems.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish tv Tuner signal board for the replacement.
OK A Blue screen, indicate that there is, or the TV "Thinks" there is NO SIGNAL. Please Check your Antenna Connection. Unplug the TV, for 5 mins or so. You MUST prove either the TV or it's "Signal Source" the Antenna. Try the antenna on another TV, if possible, try another antenna,on the TV, Try feeding in a signal via the EXTERNAL inputs. IF ALL Inputs are proved OK, and the TV, still will NOT display any signal, then it would appear that you may have a "Tuner" fault, or some other underlying condition, that affects the reception. In my professional opinion, in that case is to get the unit looked at by a Toshiba, recommended service center, VERY IMPORTANT to do that. Ask for a "Quote" from that service center, and go from there.
Sometimes the box that sends the signal to the TV preconditions the signal to 4x3 or 16x9, depending on the capability of the TV. I always opt to the "no fit" option and allow the intelligence of the TV to fit the screen.
If you have "off air" TV signal without that preconditioning, I cant help.
Your TV is telling you that the cable, antenna,
or another input has no signal coming into it.
When there is no signal, the set mutes itself to a blue screen to avoid your seeing "snow" on the screen.
You need to check your connections. IF all are O.K., then your problem must be in the tuner or A-V input.
Stargazer
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