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Your replying to a post from 2014:)

I think the dc and sound board can go bad on these? I remember something about power and sound on pismos.

Yeah me too. Was definitely weird. I could see the darkness around edges when i shut it off, but when it was on it still didnt look inverted like some of the 180’s i had. Could still see the little pixel squares etc even on the side darkness.

So my unicorn 540 was good for a long long time. I turned it on and forgot for hours today that it was on. Came back, and notice it looked like a little tunnel vision starting. Weird that one little area on side but corners werent bad. I shut it off for a few hours and now looks good again but...

I recapped my 13” high res monitors a long while back as well as my lc series computers (lc, lc2, lc 3 etc) the lc 3 works perfectly with the monitor but the lc and lcii dont show anything. They work fine with my 14” apple color display in other room. Why not with the high res?

Thanks for the info. Yeah i know the fragility of the 601’s. The paste was really gone and was hard to clean off with isopropyl so maybe it ran hot for awhile before i owned it? recapping went well so cant see it being caps. I will attach a video which may or may not blow your mind. Its a...

So another 7100, another problem. This board worked before recap. I put organic polymer caps on it, and repasted cpu. I just did the same thing to a 6100/66 bought in the same purchase and it works perfectly. I have tried different psu and no difference, just dead. Any idea on this one? These...

I just recapped a 7100 i just picked up and now no signs of life. I have done a ton of macs and only ones i seem to have issues with is the 601 boards. I just did 6100 in the same pick up and it works perfectly thank god

Sounds like possibly a broken trace. How are the simm holders themselves, are the little tabs plastic / broken, or the metal ones?

Most caps available except I couldnt locate the big cap at the correct height or diameter on mouser / digikey Thats a rifa / safety cap. Thats what they do when old. They blow and smell bad. Never experienced one personally thank god:) will have to check the value.. Macdat.net might have info...

I took off some ram chips and put on an expansion board. One works fine, the other one is giving me grief. See attached video. Do ram chips have to be a certain direction like the writing on the top? Sorry if dumb question but I can’t think of anything else? Will attach picture of both sides...

Would reflow the caps you did and clean board really well. Definitely needs good vram to display anything

Sweet. I have two untouched 180 displays that have tunnel vision. I just dont want to take apart a laptop to test them afterwards lol.. tempted though

The pins inside the 540 may need to be bent back out. Also, the 540 psu definitely needs recapping as well. Just bought another 540c and its power supply reaked of fish smell

Have you tried mode 32 and switch it on, restart and see what it says? Weird issue

Can you link the polarizer purchased? Interested as i have a spare 180c display to try on.

Excellent:) hope it resolves the issues!

Yup, cc analog boards hard to find. I was lucky and found one locally a few years back. I was sad that they are hard to find. The guy recapped part of analog so I finally finished that a few weeks back.

I have almost always have had to pull off the sound and egret on those boards due to cap leakage. I have had broken traces, or legs turn to powder so needed to cut into the actual chip etc etc.

Ok, so I have this Mac plus. I have like 4 external hard drives that all work. One is an ultra 45. I can’t seem to copy anything to it as it is “write protected”. Is this software or something on the drive itself?? Also, this system on this drive is system 6.1. It has a nifty little screen saver...