Virtua Fighter 2 issue

[Gaming Heaven]

My Virtua Fighter 2 doing funny things

I checked the psu and seems to hold 5.1v on load on the pcb

it has weird glitches like eg tiny playfield, wrong colours [very red] in image...then reinitiase through test menu and it's all fixed no issues

turn cab off...
then on and issues usually appear again

thanks in advance

 

[Gaming Heaven]

 

[bones]

Hmm, just out of interest, if you put credits on it and turn it off and on again are the credits still there ?

 

[Gaming Heaven]

Hmm, just out of interest, if you put credits on it and turn it off and on again are the credits still there ?

yes credits seem to be still there!

 

[2huwman]

Could try lowering the voltage a bit, as some of my model 2 stuff plays up if voltage is anything over 5v.

 

[gunblade]

the red issue looks like a chassis fault, is it a nanao ms8-26?

 

[Gaming Heaven]

Could try lowering the voltage a bit, as some of my model 2 stuff plays up if voltage is anything over 5v.

cheers good tip ill try it, did cross my mind thanks

 

[Gaming Heaven]

I tried to set to 5v under load and sadly didn't work

I noticed the credits don't store when switched off

any ideas? swop rom board first then try one-of the main boards?

cheers

 

[bones]

Only asked about credits because it sounded like your settings were being reset every time you turn the machine off, as if a battery or super capacitor had expired. But honestly I am not familiar with what you have so no idea if it even has any of that but it could be food for thought if the credits are not being remembered. Didn't know if it stores data either, might be worth checking if anything like games played,game duration, paid credits etc and see if that's all zero'd basically the stuff that used to be reset when doing a backup data clear in the old menus. Hope you get it sorted.

 

[Gaming Heaven]

the red issue looks like a chassis fault, is it a nanao ms8-26?

yes I believe it is...but why would initialise fix it?

 

[gunblade]

looks like a zener breaking down and would be extremely odd for a game board rgb signal to cause a cut off to go high and yet gain to be normal
only way to really prove is try a different game board

 

[Gaming Heaven]

perfect cheers

 

[Gaming Heaven]

swopped for another rom board.....same thing happened ...perfect operation a few attempts on and off,leave few hours....then faults back on colour and random weirdness...check screen..unlimited playfield!

I'll try to swop cpu or vid board?

 

[Gaming Heaven]