Okay, looks like tonight, it finally started showing its true colors and began flickering. How much for your CCFLs?

Re: HP 2509m won't turn on, no power to ON/OFF LED

Hour 1. So far so good.

I have replaced the Diode, Resistor, and the Transistor on the daughter board. I got VERY worried about the transistor replacement, because although it was removed easily with almost no energy at all, the pad under the Gate pin (Pin 1) lifted. Even before the entire process the board was a dark brown on that side, more than likely heat generated from the P5506BDG.

The Diode and Resistor came from DigiKey, and the new transistor from Ebay (see withalligators' exact item replacements)....

Re: HP 2509m won't turn on, no power to ON/OFF LED

That's excellent news! And thank you for the links. I'll be picking up these pieces, and if my screen is dim (which I assume it definitely will be), I'll get back with you if you have not found a buyer for them yet.

Thanks again, and sorry I was confused with the order of destruction.

Re: HP 2509m won't turn on, no power to ON/OFF LED

Interesting. I'll be following this thread. My 2509m (Refurb, rebranded Famous Maker no less), JUST died last night while playing a game. Prior to that, picture was perfect. No flicker, no dimness, then poof. It seems there is no definite reason for this.

Are the bulbs to blame for this? Seems everyone that is replacing mosfets mentions the dimness afterward. I am possibly tempted to just chunk this thing if it is more trouble than it's worth to repair it (Unlike almost every other LCD monitor I've repaired). But I...