rubyfocus
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Apr 28, 2020, 12:47 AM
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Repurposing Samsung LTA320W2 backlight
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Hi folks! I'm trying to get a known-working LCD backlight (CCFL) to work on it's own. All of the LCD-related circuitry has been removed as well as the LCD itself. I want to get the backlight to operate and use the whole thing as a cool light source for my dark and dingy hallway. I bought a new 24 volt, 5 amp power supply and rigged up a little voltage divider circuit for the 5v enable signal and the 0-3.3v brightness control. Hooked everything up and all it does is turn off and on every second. When I disconnect the 5v enable signal it turns off as expected; hook it back up and we get the same one second blinking as before. Can anybody tell me what I'm missing here? The only thing I can figure is the inverter board might need the voltages (24, 5, & 3.3v) applied in a specific order, in which case I have no idea how to accomplish that unless I rig up an Arduino or something. Anybody?
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