Is it normal for this voltage to goes lower and lower to 0?

Thread Starter

UnnamedUser159

Joined May 3, 2016
501
About the one TV set power board. I measure about 40 volts on the place where 2*LED backlight strips should be inserted.

Is it normal when:
- led strips are pulled ?
- they are not ?

Thanks
 

Thread Starter

UnnamedUser159

Joined May 3, 2016
501
IMG_20171130_111730.jpg
i cannot understand something very simple.
This board gives - to LED strip 1. where from LED strip 1 takes the other - > The Plus ?
+ to LED strip 2 . where from it takes the Minus ?

I have one new backlight but when put one new and one of the old i have no light neither on strip1 or strip2
 
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