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I took it off , cleaned the area with iso , checked the continuity between all the vias under the chip to their local pads ........ all seems fine just took off U5 and did the same , all seems fine ......... put it all back and still grey screen the video memory is seperate from the onboard...

went through everything in this thread , but it didnt help me might help someone else though https://68kmla.org/bb/threads/color-classic-no-power-issue-debunked.1285/#post-24248

aparently this is an unsolved problem for CC's reading this thread https://tinkerdifferent.com/threads/color-classic-motherboard-woes.2580/ same problem , except im getting a chime and the machine is booting ......... but screen is just grey , no mouse has ANYBODY !!!!! had this problem...

Got this color classic that i recapped and its giving problems ( previous posts) looking at upgrades. this guy put an Imac G3 logic board into a CC i have a 333mhz bondi blue imac with a damaged case seriously considering the mod does anyone know if this is possible - the guy talks...

still have the problem - hasnt given a display for last few hours - pram reset not making any difference now ive checked all the caps with other new caps , and soldering is clean and accurate the amount of cap goo that was on this board when i got it was unreal i used liquid hand soap ...

got a display with pram reset , by pressing command , option , P,R and power at the same time ........ but with artifacts on the display as the mouse moves i dont have a battery installed on logic board as i dont have a new one.......... machine powers with no battery installed - have read...

have read that the 256k vram is the 2 chips next to the vram expansion slot - ive checked and reflowed them - still the same - i guess this is why the machine is booting regardless of the video problem took the back cover off to have a look - machine is very clean inside - checked the big slot...

did you get this fixed as i just posted the same problem

Hi folks. Got a color classic recently - powered it on and it chimed and gave the display of the flashing disk icon the logic board was in a terrible state - amazed it even chimed. recapped the board with tants and gave the board a much needed clean put it back in and powered it on - chimed...

bad solder connections on A/B Bad connections from A/B

i had the same problem with an old SE recapped the analog board think it would fix it but it is exactly the same

cheers ymk

Im trying to fix a dodgy laptop - Looks like mosfet problem - Can anyone recommend a good forum for general electronics problems as this is not related to Apple products in any way

very nice - great find

the 400 and 800k floppy drives used varying speeds that cant be replicated on the usb floppy but I have ( only last night ) downloaded an 800k image of system 6.08, wrote it with transmac and my se booted from it - it comes up on the mac as an 800k disk Again its something like stuffit - a...

no idea porta something that really gets me is when you transfer something in a .sit to the mac - run stuffit on it and it wont work - then you try different versions of stuffit ....... i have spent hours trying to get my head around it - as far as i can see you need stuffit 1.51 all the way up...

I use a USB floppy drive on my PC and a small program called transmac. https://www.acutesystems.com/scrtm.htm Transmac can format floppys ( 1.4 mb ) it can create images of mac floppies on your PC it can also write 800k images to floppys i use it to quickly get software from the internet onto...

take out the floppy drive and clean it. The ejection is driven by a motor and small gearbox the gears in these gearbox's break or get seized with old dried up grease to remove the gearbox there are 2 screws and the connector for the motor the gearbox lid just clips together - carefully pull...

Remembered some more I used to have Apachie Strike Harrier Strike Mission

oh yay ...... more titles - thanks people - iver never heard of road racer or splaters - great stuff I notice there are very little utube vids of Macintosh games , just a few top 10's etc On SubBattle alone I could make a 30 min vid explaining how to play it and how the game works. Looking...