Recent content by marcocet

  1. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    Yea going to try it out at least for sure. I have a radius full page display card for SE I was hoping to try out buy ig that wont be happening with this one. Would need a way of getting output from it anyway.
  2. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    Hm alright. ill give that a shot. Yea I think that might be a bit more than worth for this machine unfortunately. My power supply and analog board are super clean and seem to work, i was able to hook up my plus logic board to the crt and got a clear image. The case for this machine is pretty...
  3. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    Yea there is a decent amount near the I/O. I was hoping the machine would still work sense its just I/O traces. I washed the board with soap and water but yea I can do that. Where do you see the broken traces and bad caps? Yea same schematics I found, they are quite bad unfortunately. I did...
  4. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    I dont seem to be getting anything on the CLK pin on the cpu so maybe that could be it?
  5. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    Alright well im getting the same reading from the crystal on my mac plus which is fully functional so. Not sure whats going on there
  6. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    Hey been a little while. I never had much luck looking for problems physically on the board, but I ended up getting a Zoyi ZT-703S starter scope for some other projects and hopefully it will be helpful here. I tried to measure the output of the oscillator crystal and output is shown in the...
  7. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    Yea sorry I meant I would check that out. I didn't realize the author had more books other than dead mac scrolls.
  8. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    Yea im not sure why it is that high. I didnt think it was that high when i measured previously Yea I will do that and look closer for traces Oh interesting i didnt realize there were books other than dead mac scrolls. I will take a look at the dead sets section! Thank you !
  9. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    Nothing seems to happen when i press it. The reset button shows 450 ohm not pressed and 0 when press so seems to be working? The Interrupt shows 3750 ohm when not pressed in though? Is 450 for the reset button too low? also interupt button may be broken as it doesnt change resistance when...
  10. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    the rom and IWM chips look fine the sockets are clean. I can try reflowing some of those rusted joints.
  11. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    When I removed the battery from the holder it didnt have any holes or anything where it could have leaked from but maybe I missed something. The bracket at the back is pretty rusty I will say though. I’ll take a look under battery holder.
  12. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    Yea im getting all the necessary voltages on the logic board from J12 and on the floppy connector. 12 volts is around 13.5 now which i didnt think was the case before. Is the 12 volt rail used for chips themselves or just HDD/FDD drive?
  13. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    J11 meaning the speaker connection? i dont see anything that looks cracked but i can try reflowing. I already reflowed J12, the main power/video connector to make sure there wasnt any cold joints there.
  14. M

    Mac SE no bong, no display. not getting anywhere with troubleshooting

    Dont have any other SE or SE/30 boards unfortunately. I did do some testing though, I posted it right before you responded so you might have missed it. If you notice the non-original ram, I tried it with original 256k sticks from my plus as well.
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