Hi all.
I have a TV that is driving me to distraction trying to fix it and hope someone may be able to help.
The TV is a Baird CN22BAIR which apparently was switched off one night and from then on has shown only white screen on all source inputs. The power board is fine as is the inverter (hence the backlights of the white screen).
I tried another similar screen to eliminate the screen itself and the display all came up and all sources, including DVD, displayed. Problem sorted I thought until shortly after the replacement screen suddenly went white screen!
Cutting a long story short I discovered the screen put on by me had now blown its F1 fuse. On checking the voltages coming up the LVDS line I found them to be 12 volts instead of the 5 volts they should be (also other 5v supplies to for example the IR receiver etc also show as 12v instead of the 5v they should be. So the signals board (CV106L -V3.1) appears to be the villain. However I have really struggled to find the failed component and cant get hold of a circuit diagram for this board. I have attached a stock photo of the board in question as at the moment I cant photograph the culprit itself in the hope someone may recognise the board and be able to offer any suggestions as to why it is delivering 12v down the 5v lines. if anyone has a circuit diagram for this board or tv I would be very grateful.
If all else fails I will try and upload some detailed photos later.
Many thanks
John
I have a TV that is driving me to distraction trying to fix it and hope someone may be able to help.
The TV is a Baird CN22BAIR which apparently was switched off one night and from then on has shown only white screen on all source inputs. The power board is fine as is the inverter (hence the backlights of the white screen).
I tried another similar screen to eliminate the screen itself and the display all came up and all sources, including DVD, displayed. Problem sorted I thought until shortly after the replacement screen suddenly went white screen!
Cutting a long story short I discovered the screen put on by me had now blown its F1 fuse. On checking the voltages coming up the LVDS line I found them to be 12 volts instead of the 5 volts they should be (also other 5v supplies to for example the IR receiver etc also show as 12v instead of the 5v they should be. So the signals board (CV106L -V3.1) appears to be the villain. However I have really struggled to find the failed component and cant get hold of a circuit diagram for this board. I have attached a stock photo of the board in question as at the moment I cant photograph the culprit itself in the hope someone may recognise the board and be able to offer any suggestions as to why it is delivering 12v down the 5v lines. if anyone has a circuit diagram for this board or tv I would be very grateful.
If all else fails I will try and upload some detailed photos later.
Many thanks
John
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