The CCFL back light of the original Xenarc does get pretty hot. That is why I chose to mount the LCD controller PCB horizontally, 90 degrees away from the screen. The parts run cooler when separated.
I am about ready to order a new LED backlit Xenarc or Lilli, because the LEDs are low voltage and run cool.
The CCFL technology is high voltage, like 20kv, I had the CCFL starter circuit throw a lighting bolt into my finger while feeling the chips for warmth.



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