- Joined
- Aug 30, 2001
- Posts
- 349
Hi guys,
I have an MV-1B that has these vertical graphic glitches:
It's pretty much the same as what RyuX experienced:
http://www.neo-geo.com/forums/showthread.php?275958-Bad-Luck-with-my-MV-1FZ-Mainboards&p=4327633&viewfull=1#post4327633
But the specific resolution was not pinned down by him.
I've isolated the problem to the smaller board by testing with another functional smaller board.
And I've performed continuity checks between the ZMC2 and the edge connections and they all check out.
https://wiki.neogeodev.org/index.php?title=NEO-ZMC2
https://wiki.neogeodev.org/index.php?title=MVS_cartridge_pinout
Particularly the ones bounded by the red boxes here. And also made sure they weren't shorting out against each other or GND or Vcc.
Cleaned the cart slots, the interboard connectors, basically washed it with electronic cleaner but it's the same.
Also checked the NEO-BUF bypass thingabob on the left and it too checks out.
The traces on the bottom of the ZMC2 also have continuity. And the fix layer graphics are fine so it shouldn't be anything related to the SFIX chip.
Might anyone have a clue what could be the issue? Quite stumped.
Thanks!
I have an MV-1B that has these vertical graphic glitches:
It's pretty much the same as what RyuX experienced:
http://www.neo-geo.com/forums/showthread.php?275958-Bad-Luck-with-my-MV-1FZ-Mainboards&p=4327633&viewfull=1#post4327633
But the specific resolution was not pinned down by him.
I've isolated the problem to the smaller board by testing with another functional smaller board.
And I've performed continuity checks between the ZMC2 and the edge connections and they all check out.
https://wiki.neogeodev.org/index.php?title=NEO-ZMC2
https://wiki.neogeodev.org/index.php?title=MVS_cartridge_pinout
Particularly the ones bounded by the red boxes here. And also made sure they weren't shorting out against each other or GND or Vcc.
Cleaned the cart slots, the interboard connectors, basically washed it with electronic cleaner but it's the same.
Also checked the NEO-BUF bypass thingabob on the left and it too checks out.
The traces on the bottom of the ZMC2 also have continuity. And the fix layer graphics are fine so it shouldn't be anything related to the SFIX chip.
Might anyone have a clue what could be the issue? Quite stumped.
Thanks!
Last edited: