Quantcast

Search:

Type: Posts; User: majinga

Page 1 of 7 1 2 3 4

Search: Search took 0.02 seconds.

  1. Replies
    4
    Views
    357

    Of course you can. You need a stepdown to match...

    Of course you can.
    You need a stepdown to match the voltage input of the transformer.
    But the output still the same.

    You can't use a UK psu in US without a step down converter.
    But you can...
  2. That's true, there are a lot of people at their...

    That's true, there are a lot of people at their first work, with money to spend and no other expenses, no kids, no rents.
    About younger people, who knows, is just too soon.
    Generally they don't...
  3. Sure this is a bubble, and sure someone is...

    Sure this is a bubble, and sure someone is speculating on this. And probably this will not end tomorrow.
    I'm not sure this is only a piloted bubble, probably there is really a lot of request for...
  4. If you don't trust kits buy thm from a well known...

    If you don't trust kits buy thm from a well known reseller.

    Smt or tht is your choiche.
    Tht are easier to solder, the pads still visibile for inspection. If you have to replace them again you can...
  5. Replies
    764
    Views
    320,939

    Check a capacitor in circuit Is tricky, even with...

    Check a capacitor in circuit Is tricky, even with a professional tool. And you can't just probe them around if you don't have a clue of how they are placed in the circuit and what theyr function is....
  6. Replies
    764
    Views
    320,939

    You can test the capacitors in circuit, only if...

    You can test the capacitors in circuit, only if you are sure they are not in parallel with other capacitors.

    For the voltage, unfortunately yes. The MCD1 Is not easy to diagnose
  7. Replies
    764
    Views
    320,939

    I have one of those. They are really handy, but...

    I have one of those. They are really handy, but they are not so accurate especially in things like the esr. So you can't rely on it ti check if a capacitor Is good or not.
    And, again, once you...
  8. Replies
    764
    Views
    320,939

    Personally, i would only replace the fuse and...

    Personally, i would only replace the fuse and tr4. And check the tracks around tr4. Then i would Probably power it by my bech psu, to limit the current, just in case.

    If there are no shorts, but...
  9. Replies
    764
    Views
    320,939

    Nope, when the ESR increase the capacitance still...

    Nope, when the ESR increase the capacitance still the same. Multimeters can only read the capacitance, so they are not good to check if a capacitor is good.
    They can be useful for short capacitors,...
  10. Replies
    764
    Views
    320,939

    @demonseed Sorry, I didn't take any picture when...

    @demonseed
    Sorry, I didn't take any picture when i repaired mine. Once the tray completely removed, is not so easy to put it back in the correct way. I remember when i fixed mine, i made several...
  11. No. When an MD game use the pad, the game itself...

    No. When an MD game use the pad, the game itself must control the state of the pin.
    It must work in a way like this:

    The game set the pin HIGH, then he read the values of the B and C buttons,...
  12. Replies
    22
    Views
    4,423

    Check the belt

    Check the belt
  13. Replies
    764
    Views
    320,939

    The helix screw is engaged only on the last part...

    The helix screw is engaged only on the last part of the movement, when the tray is totally in.
    Is not easy to move it by hand. Most of the time it appear to be very hard. Or the tray seem to be...
  14. Replies
    764
    Views
    320,939

    Did you tried to replace the BIOS?

    Did you tried to replace the BIOS?
  15. Replies
    3
    Views
    305

    Wow, I don't recall all this stuff. I always just...

    Wow, I don't recall all this stuff. I always just burned them
  16. Replies
    5
    Views
    471

    That's odd. I never seen a tv which don't let you...

    That's odd. I never seen a tv which don't let you to force the aspect ratio.
    Check the scart, to allow the TV to be auto set in 4:3 you need to feed about 12v on the scart PIN 8.

    Most of the time...
  17. With the fix you will be able to do the IGR in...

    With the fix you will be able to do the IGR in SMS mode, by holding B+C+DOWN for few seconds.
  18. Sensing the pin 7 make the fix available for...

    Sensing the pin 7 make the fix available for everyone who already have the mod, without the need to solder anything else.
  19. Replies
    764
    Views
    320,939

    No, still not able to see the attachment. Some...

    No, still not able to see the attachment.

    Some progress in the repair?
  20. At the moment the plan is to check the value on...

    At the moment the plan is to check the value on pin 7, if is stuck high then the MD is in SMS mode.

    Allow the micro to control the pin in such situation is not so easy. You can't just feed a...
  21. This is exactly what the SMS++ do. On the MD++...

    This is exactly what the SMS++ do. On the MD++ the micro is already capable to read the 3/6 pad buttons. This is easy.
    The complicated part here is to allow the micro to handle the pad only when the...
  22. Here some info about how the 6 buttons pad work:...

    Here some info about how the 6 buttons pad work:
    https://retroramblings.net/?p=835
    https://github.com/jonthysell/SegaController/wiki/How-To-Read-Sega-Controllers
  23. PIN 7 Is not suppose to stay fixed at one level,...

    PIN 7 Is not suppose to stay fixed at one level, vcc or ground. To allow the pad to work in 3 or 6 button mode PIN 7 must act like a clock. It continuously go high and low.
  24. It can but only in the menu. Once the game is...

    It can but only in the menu. Once the game is loaded it's up to the game to handle the pad.
  25. Replies
    764
    Views
    320,939

    Again, no attachment. You must melt the solder...

    Again, no attachment.
    You must melt the solder on each PIN together. Try to bend the single PIN is risky, you can apply too much force on the central pad.
Results 1 to 25 of 161
Page 1 of 7 1 2 3 4