Graphic problem with MV2F
- Thread starter paoloMVS
- Start date
Jonap
Mega Shock!!
- Joined
- Oct 10, 2006
- Posts
- 100
Hello !
It can be many things, let's start by trying the basics, it has worked for me on more than one occasion.
-You try with other games? do it
-Try moving or slightly passing the slot cartridge with the console running, it may be a bad contact due to too much pressure when inserting it or the other way around.
You can also see immediately if the image improves or remains the same.
-Do a good clean of game cart pins and board slot pins ( i use credit card under a 100% cotton shirt with alcohol on it ) you insert like a game in slot and that clean it a little )
-Try to press slightly with the game ON the big chips of the MVS board to se if the image is better ( maybe cold joints or without solder doing bad contact ).
Its important you try more games can be a problem of Mslug2, a cold solder joints maybe with reflow of some memory chips like P, M and C's...
It can be many things, let's start by trying the basics, it has worked for me on more than one occasion.
-You try with other games? do it
-Try moving or slightly passing the slot cartridge with the console running, it may be a bad contact due to too much pressure when inserting it or the other way around.
You can also see immediately if the image improves or remains the same.
-Do a good clean of game cart pins and board slot pins ( i use credit card under a 100% cotton shirt with alcohol on it ) you insert like a game in slot and that clean it a little )
-Try to press slightly with the game ON the big chips of the MVS board to se if the image is better ( maybe cold joints or without solder doing bad contact ).
Its important you try more games can be a problem of Mslug2, a cold solder joints maybe with reflow of some memory chips like P, M and C's...
Last edited:
tried few cards with same results...all cart contacts are cleaned....
I already tried to chenge the ZMC2 and LO ROm bu I think the problem is elsware..
Neo Wiky suggest a similar problem ( 4 coulumns mirrored) as an A4 address (https://wiki.neogeodev.org/index.php?title=Graphic_glitches) but the MV2F board don't have NEO-273 chip.. so wich is the chip who is used insted..
Thanks
I already tried to chenge the ZMC2 and LO ROm bu I think the problem is elsware..
Neo Wiky suggest a similar problem ( 4 coulumns mirrored) as an A4 address (https://wiki.neogeodev.org/index.php?title=Graphic_glitches) but the MV2F board don't have NEO-273 chip.. so wich is the chip who is used insted..
Thanks
I suspected one of the 257...but usually when I have found one with problems was not impicted both the overlay text and background... that was why I cahanged first the ZMC2...
Usually when one of the 3 x 257 is compromised I have only vertical lines in
-background ( the one top left)
-sprites ( the one down left)
-or the non on the right that is for overlay graphics..
right...
thanks
Usually when one of the 3 x 257 is compromised I have only vertical lines in
-background ( the one top left)
-sprites ( the one down left)
-or the non on the right that is for overlay graphics..
right...
thanks
- Joined
- Apr 9, 2009
- Posts
- 574
Since the issue is happening with both C/S ROMs I would suggest looking in to the P0-P23 address lines used for accessing those roms.
The P0-P23 address lines start at the NEO-B1, go to the NEO-E0 @ 4F and then onto both CHA board slots.
The P0-P23 address lines start at the NEO-B1, go to the NEO-E0 @ 4F and then onto both CHA board slots.