Have TV Questions? Ask a TV Technician
Hi , I`m JackPerhaps I can help you with this problem but first could you give me a description of the problem ?I would also require the tv`s model number on the back cover please ?
Yes and now I see that you have 2 open posts on this , which I am on both as well .
So we`ll pick one post to work on and I`ll have the other one closed
Please do not open other post and reply to me here if we are to work on this one ?
Unless you have a seriously dark screen like almost not visible this may be adjustable.
We could try a picture reset then factory reset .
Did this problem happen all of sudden or gradually got worse over the last few days/weeks ?
Go in the TV's menu then PICTURE , open this and scroll down to ADVANCED SETTINGS and once in there perform the RESET
Tell me if that helps
No problem , take your time
O.k then if this had to do with any of the adjustments then it would have brought the picture back to somewhat normal.
You did find that reset yes ?
O.k then here is the factory reset before looking at repairs ;
With the tv on press and hold the ARROW UP on the REMOTE while you press the POWER directly on the tv .
The tv will turn off and on again , release the arrow and you will be at the first time setup , do that quickly by skipping items you don`t need like channel programming and see if that helps
O.k then at this point there are 3 possible culprits and no its not the BU /main board
You have the backlight inverter then the D3Z board that drives that inverter and finally the power board that supply its voltage .
If you go in the menu and play with the BACKLIGHT adjustment , does it vary at all or stays the same ?
Is the screen evenly dark or dark spots ?
This is new here , I thought we were talking about a dark screen only
Do you mean like a negative or solarized picture ?
How about the TV's own menu , how does it appear ?
I`m sorry but this is taking way longer than expected and I have shop work to do , i will have to opt out now.
You don`t have to do anything , your question will be reposted for other techs. to see and jump in.
Hello, my name is ***** ***** I'll assist you. I'm sorry you're having trouble with it.
Please provide me a good picture of TV screen so I can view the issue which will help me to diagnose the problem bit quickly.
Sure, take your time.
Got it, working on it and get back to you in few minutes.
Does the moving object in picture leave trails behind, it's similar when you move mouse pointer bit fast on computer screen and it leaves trails behind?
OK, looking into related manual and get back to you in 10 minutes.
Unfortunately it is LCD panel internal issue as internal circuitry of LCD panel has got fault and causing the darker and more reddish picture. I have come across this issue a few times and had to replace entire LCD panel to fix the problem, it is not a t-con board nor backlight inverter problem. I'm sorry about this bad news but had to break it, I know you would not like to hear it but there is no other option except to replace the screen in TV which would cost more than new TV price of same size if still available with Sony Parts in area so at that point you would be better off with a new TV instead of spending money and time on this old unit.
I trust my input will help you out. Please feel free to respond if you have any additional questions.
I wanted to briefly follow up with you and see how the info worked, and see if that accomplished what you were looking to do!
Please reply back here if there is additional questions.