Thank you for the dump but I can't convert the file to iso, hdiutil keeps saying attach of disk image failed: 112
Could you redump the disc on a proper burning utility like ImgBurn? https://www.imgburn.com/
As bin/cue would be best. Thanks.
So I have some update to this issue. I could aquire another dead 840av, I have measured its 5V to GND and this time it was again 16Ohm. Therefore I came to the conclusion, that the problem is NOT a short, despite my multimeter is beeping. On my first board then I resoldered all 5v rail tantalum...
I have read that the non pro variant have low ir resolution and is on finer pitch pretty blurry. The Pro variant is really good it seems but 400€ is too much for my budget. I hope it will be usefull.
I have washed the board through the dishwasher, removed all shorted/5V rail black and yellow tantalum caps. The short is still there. Between GND and 5V the multimeter shows between 16-17 and it beeps, I think the value is in mOhm? Should I start to remove those tiny ceramic caps too? They also...
I have read the pinout in reverse, not the -12V is short to GND, it is the 5V rail. The board is in the dishwasher now without soap. Should I put the board completely in isopropal 99% before drying?
I need some help regarding my Quadra 840AV. I have got this Macintosh stock. The behavior was at power on: Very dim Power LED, black screen and only FANs were spinning. 2 days later I have powered it on again and the power LED wasn't powering on any more but FANs were spinning. After longer...