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Home Forums PB Duo issue — #3 PB Duo issue — #3
Post #3 by techknight
Source ForumPB Duo issue — #3
CategoryHardware
Post DateFri, 10 Jan 2014 - 03:33
Original URLhttps://68kmla.org/bb/threads/pb-duo-issue.29612/
Post
Nope, everything looks good.

the 5V logic voltage going to the SCSI IC, etc is rock solid. HOWEVER. the 5V is missing from the HDD connector, and i noticed the bus phases toggling up and down repeatedly over and over again like its attempting to find an HDD. But of course its not connected, so it cant. And even if it was, the 5V is missing.

there is a MOSFET that connects that 5V to the main 5V, and its not being told to turn on. And this is handled in the GLU. So who knows.

I dont have a dock handy, and that isnt the issue. the screen comes up to a gray dithered screen. (like all macs do when you first turn them on). But it never shows the black mouse curser. it doesnt make it that far. But it shows the gray screen just before the mouse.

mp.ls