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Home Forums Quadra 840AV problems, need help — #20 Quadra 840AV problems, need help — #20
Post #20 by MacNostalgic
Source ForumQuadra 840AV problems, need help — #20
CategoryHardware
Post DateSun, 20 May 2012 - 16:45
Original URLhttps://68kmla.org/bb/threads/quadra-840av-problems-need-help.25420/
Post
Hmm,

it should be try, because after washing (at this moment the board was almost dry), I have put the board in the baking oven at 125°F for about 30 minutes. Then through the night I laid the board up side down til this morning.

Parameter RAM did work. I tried it four times a row.

Power on from keyboard works also.

The speaker connector I can only put in one direction.

Starting from CD doesn't work. No reaction.

Good thing is, the Mac recognize the disk (not CD), because he eject it and shows a "x" on the screen.

I think, now it's time for resoldering the capacitors and then to check the power supply with a multimeter, but for checking the voltages I need further instruction.

It can't be that much damaged, I think.

mp.ls