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Acer v203HV turns pink then white display

Hi,

This Acer v203HV lcd monitor has been working normal for more than 5 years until yesterday. When i switched on, the normal Acer logo appears but after less than 1 minute, the display turns pink hue( image 090232),shortly it becomes white (image 090246). So i opened up the monitor case, checked the main board and scalar board (image 091912).
Nothing burned, no cold solder, the fuse and diode all checked good, even capacitors with low esr 0.00 off the board.

Also checked the tcon board, and found nothing peculiar. Has anyone experienced this before or has any suggestion on what to check next? Kindly offer your help to save this monitor. Thank you in advance.
 

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