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Exactly.. yeah a few pins are different unfortunately. Only other thing I have that uses a 6502 is the 1541 disk drive. I could test it in there possibly
Scratch all that, mines not socketed like a lot of the 1541 drives are. Don't want to desolder it, just to test.. probably different anyways...
Don't have anything to really test with till I get the oscilloscope unfortunately.. Is there really any other way to test it?
Unless I can put it in my c64.. but that was a 6510 which is just a modified 6502
Well for anyone in the future. I took the liberty of making a spreadsheet, with names from page 330/331 here in the reference manual
Comparing it to my board and trying to find every replaceable IC.
Includes where to buy them, colored ones that have multiples and price.
If I were to buy...
Question for you on this, the main one I found that had no voltage was right in the middle of the row. Basically every ram chip was 4.52, 4.52, etc etc then .1, then everything was 4.52 after
I replaced that chip and everything came to 4.52
Or are you referring to these chips only getting 4.52...
You make a compelling argument!
There's been a trend of this thread of someone suggests something and it happens ;)
I'm easily convinced.
While getting my fiance to help me earlier she even hit me with the "can you desolder some of these so I can clean them better"
Fun fact. My keyboard...
They can! I was surprised and relieved!
I've considered honestly doing a hail mary and replacing every damn chip except for the ROM/PROM chips
See page 330 for a big ol list . It's mostly ti IC chips that are still all around and I can get em for a buck a piece from the standard places.
Okay so my oscilloscope should be here tomorrow.
I went through and measured all the voltages on the logic board.
Reseated every chip, and also sanded almost all of them.. Full of corrosion/rust I should have done first time around.
Most items in the center of the board (where the rust was)...
Thanks!
It was a good change of pace from the ///. Just a little here and there left.
Happy to have all 3 form factors of the compact line.
Yeah.. it won't be used till I get all that fixed. Well it won't even boot to system I am dumb with mode32. Just bombs with bus error 9. I assume it's...
While waiting for my mini oscilloscope to come in the mail to continue on my ///... I decided to take a different route and fix some of my other machines!
512k, SE/30, Classic ii.
512k:
Was the classic startup bong but no screen. I opened it up, cleaned everything, reflowed the solder on a...
Thank you for the info @lisa2 !
I'll check tomorrow afternoon with all the chips. New tools should be here Friday also to troubleshoot more. Excited to finally dive into using tools that always interested me but I never had a use for. Time to learn now!
Bought! Please note I am new, but willing to entirely learn. I know will sound stupid.. but what am I specifically looking for with this? I know that it is for looking at signals. But where would I be placing the probes / clips to look? Specifically looking for?
I know it's someone fixing color...
Okay a little update here, took the night off last night and didn't do anything with it.
But I worked a bit on it before going into work this morning.
The floppy motor kicks on when plugged in (floppy still not assembled entirely yet).
The speaker didn't work yesterday but magically started...
This little light of mine, I'm going to let it shine.
I got 3 lights and no video output.
The keyboard light works, I have a red light on the logic board and my new power supply is clean and working sharp.
Time to start down the rabbit hole of "why don't I get anything from video.."
Does...
Power supply will be here today according to USPS.
Anything I need to test or do besides plug in new power supply into freshly cleaned board and see if I get anything out of it?
Going to see if I can get my floppy together today too and test that (might not be possible, slowly moving!). If not...
Floppy progress is being made, slowly but surely. One at a time.
There was a crack in the plastic on the internal plastic.
It currently has a dab of super glue and the piece back on there.
Cleaned vs just taken out of case:
The one on the left if the cleanest I can get the damn thing. I...
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