Wonder this display still does not have a thread in here. It's a bigger cousin of the P19-2. Mine does have quality caps and Alpha&Omega AOD408 transistors in the inverter yet it clicks. I put it in storage years ago thinking transistors are bad so I'll fix it some day later.
But they measure fine and even when I lifted the fuse for the inverter, effectivelly unplugging all load from it, it does the same. Caps measure fine, diodes measure fine. Other than that there is nothing really, TL431 has been replaced. There is some other reference I can not identify, 2SC2655 transistor, PC123S opto and SG8641DZ driver. Suggestions?
But they measure fine and even when I lifted the fuse for the inverter, effectivelly unplugging all load from it, it does the same. Caps measure fine, diodes measure fine. Other than that there is nothing really, TL431 has been replaced. There is some other reference I can not identify, 2SC2655 transistor, PC123S opto and SG8641DZ driver. Suggestions?
Half of the computer problems is caused by bad contacts 
