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Yes, the signal board was putting out a 1.0vdc command on power up, which when you look up the data sheet for the CCFL control chip, is exactly what it's looking for to start up. But the reason it never did anything is it didn't have the +5vdc VCC input it needed to operate, that went missing somewhere else on the board. I jumperd 5v from elsewhere and it instantly blew every SMD fuse, so I'm pretty sure it's shorted. The board is unrepairable anyway, and for $23 I can't really complain.
PWM was there as well. I don't think this is a main board issue, I'm sure the inverter is toast. Question is, was that the only board that let go?
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Evolution...
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12-08-2015, 08:41 AM
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