A Fujistu l22w-1 flickering and dimming for 2 sec then black screen , it has Samsung panel LTM220M1-L01 , with two upper and bottom ccfl tubes .
the images for the power board are attached, focused on the capacitors.
I think the capacitors are OK, as their shape is good. (I'll go replacing them after consulting you as you are the experts, after being certain they are the problem).
by disconnecting the upper ccfl tube and just connecting only the lower one, the screen turns on its light very good without the flickering and dimming issue, but just for two seconds only then off.
this very good lighting image only continues for 2 secs and then off again till on - off , or connect/disconnect signal.
the good ccfl tube which is not flashing and dimming works good on both ports of the tubes , while the other (bad tube) woks badly on both ports.
so one of the two ccfl needs to be changed, am I correct?
could the LCD works with only one tube instead of the original two tubes , without being black after two seconds?
Could an expert help me resolve this issue?
Thanks In Advance.
the images for the power board are attached, focused on the capacitors.
I think the capacitors are OK, as their shape is good. (I'll go replacing them after consulting you as you are the experts, after being certain they are the problem).
by disconnecting the upper ccfl tube and just connecting only the lower one, the screen turns on its light very good without the flickering and dimming issue, but just for two seconds only then off.
this very good lighting image only continues for 2 secs and then off again till on - off , or connect/disconnect signal.
the good ccfl tube which is not flashing and dimming works good on both ports of the tubes , while the other (bad tube) woks badly on both ports.
so one of the two ccfl needs to be changed, am I correct?
could the LCD works with only one tube instead of the original two tubes , without being black after two seconds?
Could an expert help me resolve this issue?
Thanks In Advance.
Comment