Replacement MV-2F memory card port?

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    • Replacement MV-2F memory card port?

      So it looks like my MV-2F has a missing/broken pin on the built in memory card reader. Anyone know of a source for a replacement part?

      Edit: Pulled the card slot from an old terminal server (same type of memory card). But, the space between the pins on the PCB is different (MVS on the right, pulled part on the left. Pulled part has a configuration where each row is closer together than the last). I know I need 1.27mm pitch, but I am unsure how to search for the PCB pin layout.

      The post was edited 2 times, last by Kujako ().

    • neo geo has a non-standard connector that I've never been able to find a replacement for (other then from parts boards). If you compare the location of pin 1 on the silk screen and the schematic you will note they aren't in the same position. Likewise if you compare how the rows of pins are offset from each other, they are backwards on the neo geo compared to normal connectors. You can see this in your first picture.
    • ack wrote:

      neo geo has a non-standard connector that I've never been able to find a replacement for (other then from parts boards). If you compare the location of pin 1 on the silk screen and the schematic you will note they aren't in the same position. Likewise if you compare how the rows of pins are offset from each other, they are backwards on the neo geo compared to normal connectors. You can see this in your first picture.
      The schematic for the one trmm and myself are looking at would seem to have the correct pin alignment (see attached). Guess I'll find out...
      Files
    • trmm wrote:

      Yes Ack was right the only other thing I can think off is making an adaptor board on cad and overlap it to match the pins cause 35 and 1 are close together and 2 and 36 are apart, this is reversed from comercial types but for any system the card will be or too out or almost all the way in.
      Yeah, I was reading the schematic wrong. I thought I was looking at the bottom layout but it was the top. So guess I'm SOL.

      The post was edited 2 times, last by Kujako ().

    • trmm wrote:

      Check the footprint on ultra librarian it matches

      also Kujako better if you just bridge those 2 points seems the trace lifted





      Edit: Ack is right don't buy it.
      Update: Just snagged a "non-working" MV-2F board off the eBays for cheap. Frankly I think it IS working. Seller says it has a calendar error, but I can see that someone added a coin cell battery (soldered in, no holder) which I bet is just dead. So I may just sway the boards depending on the condition. Otherwise I hopefully have a working part.

      And yeah, that's the trace I need to re-wire. But on the other side of the board (that's the parts side, need to run a new trace wire on the solder side). Should be easy enough if it comes to that.
    • Got the parts board in, it's fairly damaged. Someone wired in a CR2032 (soldered it directly on) without disabling the charging circuit, so system memory is kaput (weirdly I can still get it to work but it thinks the calendar date includes non-numeric characters). Got the memory card slot desoldered, so now just need to solder it into the other board and fix the damaged trace.
    • Well that was a major PITA... hard to get the solder to pull through from the "solder" side to the "component" side on the pins that have pads there. But, it passed the memory card test so I guess it's working? Will have to do some more in depth testing later, for now I'm tired and dirty (and my illustration of the pulled pin trace fix was wrong see attached for the correct one, confirmed on my parts board).