Hi, I have a sony kdl-46x3500 that now presents with a 5 red led flash code.
Originally. I was told by the person who gave it to me that the tv had a power issue and wouldnt turn on, thats why he was throwing it out.
I took it off him and got it home and it worked straight away with out issue for a day.
Then I laid it down and took the stand and rear cover off and promptly got the fault.
The tv will turn on (green led) but no picture, then after about 30-1min will automatically switch off to show fault code.
I think the code means TCON problem, but I have unplugged the TCON and the connectors but the fault code stays the same.
After I removed the back and had been working on it for a few hours (removed the tuner and the AVC board to access the FB2 board) I reinstalled the boards and the TV actually turned on again to show normal picture. But when I turned it off and on again a few minutes later it went back to 5 led fault.
This has happened randomly twice, where it has come on, but then goes back to fault at restart?
I have tested some of the voltages but I need a more logical approach, as I dont know what order to test which voltage to where, to eliminate possible problems.
The caps on the power board look ok, and I cannot see any obvious problem....
I have the service manual and the schematics.
Im ok but no expert, I need someone with a bit of real experience to help if possible.
I'm going to bed now.
Tomorrow I will try to upload photos of boards and all the notes on voltages from connectors.
I have also done a video which I will upload to youtube and paste a link here if possible.
Thats the plan.
All the best.
Originally. I was told by the person who gave it to me that the tv had a power issue and wouldnt turn on, thats why he was throwing it out.
I took it off him and got it home and it worked straight away with out issue for a day.
Then I laid it down and took the stand and rear cover off and promptly got the fault.
The tv will turn on (green led) but no picture, then after about 30-1min will automatically switch off to show fault code.
I think the code means TCON problem, but I have unplugged the TCON and the connectors but the fault code stays the same.
After I removed the back and had been working on it for a few hours (removed the tuner and the AVC board to access the FB2 board) I reinstalled the boards and the TV actually turned on again to show normal picture. But when I turned it off and on again a few minutes later it went back to 5 led fault.
This has happened randomly twice, where it has come on, but then goes back to fault at restart?
I have tested some of the voltages but I need a more logical approach, as I dont know what order to test which voltage to where, to eliminate possible problems.
The caps on the power board look ok, and I cannot see any obvious problem....
I have the service manual and the schematics.
Im ok but no expert, I need someone with a bit of real experience to help if possible.
I'm going to bed now.
Tomorrow I will try to upload photos of boards and all the notes on voltages from connectors.
I have also done a video which I will upload to youtube and paste a link here if possible.
Thats the plan.
All the best.
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