I have the TV in the title which uses common Vestel chassis with 17IPS11 PSU and 17MB55 main board.
When the TV switches on it gives a blank screen with normal backlight brightness (but no picture content) for maybe 2 seconds, then the backlight goes quite dim, but definitely still on. Sound works as normal.
There's nothing on the screen at all when you shine a bright light onto it.
The strange thing is that voltage on the backlight positive pin stays constant at around 85v whether bright or dim, the negative pin is around 30v - is this normal?
Can anyone give me any pointers on how best to tackle this?
When the TV switches on it gives a blank screen with normal backlight brightness (but no picture content) for maybe 2 seconds, then the backlight goes quite dim, but definitely still on. Sound works as normal.
There's nothing on the screen at all when you shine a bright light onto it.
The strange thing is that voltage on the backlight positive pin stays constant at around 85v whether bright or dim, the negative pin is around 30v - is this normal?
Can anyone give me any pointers on how best to tackle this?
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