Jump to content
Have You Played Atari Today?
2600|5200|7800|Lynx|Jaguar|Forums|Store

kevincondrick@gmail.com

Members
 View Profile  See their activity

  • Posts

    220

  • Joined

  • Last visited

 Content Type 

Everything posted by kevincondrick@gmail.com

  1. kevincondrick@gmail.com
    Alright I have checked those and also the voltage on the that cap was like 23.1 today but I'll recheck the diodes I know the one diode was like 5.0 idk if that's good or not
  2. kevincondrick@gmail.com
    So pins 1and 3 I got 9.1 v Pins 2 and 3 got 9.1 v Pins 4 and 5 got 17.2 v So that's all with the limits
  3. kevincondrick@gmail.com
    Ok so I tested the cap and I get 20v
  4. kevincondrick@gmail.com
    Alright I'll try that tomorrow
  5. kevincondrick@gmail.com
    I don't have anything other then a multi matter
  6. kevincondrick@gmail.com
    So how should I go about testing it ?
  7. kevincondrick@gmail.com
    Witch is that one capacitor? The 2200uf one test the output?
  8. kevincondrick@gmail.com
    The one is 10.7 and the other one is 17.1
  9. kevincondrick@gmail.com
    I took out the HD7407P and it seams like the the transistors don't get as hot if it's put so I'm feeling its the problem
  10. kevincondrick@gmail.com
    Yah I did
  11. kevincondrick@gmail.com
    Well no it wasn't the ram chip I know it's not that. I swapped that out with my intv ii and it turns out thats what I need for it cuz it works on it. Those two smallr chips down by the sound chip was what I tapped on but I tryed it again and nothing happened. So I really don't know any I'm trying to replace the HD7407P chip hex buffer.
  12. kevincondrick@gmail.com
    It should say on the cap it's self but what model are you trying to fix. I believe the one you'd want is the 10000 uf
  13. kevincondrick@gmail.com
    Nevermind I see that biggest capacitor looks like its blown
  14. kevincondrick@gmail.com
    I can't load any of the photos you put up so idk what your seeing
  15. kevincondrick@gmail.com
    I know the transistors are both 2n3906 and there both brand new so thos arnt the problem. Also it seams like the top one closer to the CP chip is the one get hot. The bottom one get warm but not as hot as the other. Also I may just get one of those 7407 chips and try replacing it.
  16. kevincondrick@gmail.com
  17. kevincondrick@gmail.com
    Yah I did check that it was like .01 ohm. The only thing other then the chip. Or maybe the residters. You know we're I can get one of those chips? Also is there any way to check it in circuit?
  18. kevincondrick@gmail.com
    What's the 7407? Cuz there's a big white thing that looked like it had boils on it. Also I checked the diodes with my mm and I think they looked ok
  19. kevincondrick@gmail.com
    Hears what happens. The only noticeable thing that get hot are the 2 transistors and the transfer its self. I just thought that was all normal tho VID_20200426_145933.mp4 VID_20200426_145933.mp4
  20. kevincondrick@gmail.com
    Alright let us know what you find
  21. kevincondrick@gmail.com
    I had a similar problem the game starts up and plays for few minutes and then it stops and if let it cool down it works again like that. I noticed the 2 transistors looked like they were burnt out ... But I replaced the but still didn't fix the problem. Still in the search for the solution.
  22. kevincondrick@gmail.com
    Well I replaced both of the transistors and all the main capacitors on this bord but the problem still present here a video of what it dose VID_20200426_145933.mp4
  23. kevincondrick@gmail.com
    Also I changed all the capacitors and still dose it. I'm feeling like it's definitely heat related but the only thing I know that heats up is those transistors. That's normal as far as I know.
  24. kevincondrick@gmail.com
    I suspect one of these chips mainly the on chip closest to the sound chip cuz when I tap on it the screen will fliker for a second then stop. Also I taped on the bord there on accidentally aright around there then it stopped working like instently. And now it wolnt come on again like it was.
  25. kevincondrick@gmail.com
    Well I changed both of the transistors but it still dose that same thing I also changed the one rom chip that dose the graphics ... So I really don't know ? idk if it's cuz it's still hot but I'll try it in a bit and see.
AtariAge
Forums
Store
General
Follow AtariAge

Copyright ©1998-2023 AtariAge

×
×
  • Create New...