Memorex MLT1921 backlight auto off

[dfsa89]

Hello all,

I have a generic memorex lcd tv. The backlight cuts off within a minute. There are four ccfl, two on the top and two on the bottom. The top two both lights up red/violet and fades to white (bad tubes).

Does having bad tubes normally cause other tubes to cut off?

A picture of the power/inverter board is attached.
Proview Technology Co., LTD
PI-XXXXTLTX Version:B
200-001-XXXXTLTX-BH

860-AB0-190DTLTD-1H

Any help or info is appreciated.

Thanks.