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Home Forums 68kMLA Replacing PB170 backlight ... with passive PB backlight? — #3
Post #3 by equill
Source Forum68kMLA
CategoryTroubleshooting
Post DateMon, 2 Feb 2009 - 12:44
Original URLhttps://68kmla.org/bb/threads/replacing-pb170-backlight-with-passive-pb-backlight.16447/
Post
Tomlee59 has given the definitive answer that you should not marry the wrong cure to the correct cause. Depressingly or not, it also has to be mentioned that the backlights and inverter boards of FSTN and TFT panels in PB1nn series Macs are not universally interchangeable. Inverter boards put out from 350 to 500VAC (in monochrome), and care must be exercised in transplanting them from Mac to Mac, and in marrying them with appropriate backlights and displays.

And that's not even to hint at the differences in video signal (flexible PCBs) cables, their routing through the hinges and their attachments to the displays ...

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