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nanao MS-2933 in a windy 2 : maximum Horizontal size and degauss issue !!

Barth0lin0

Barth0lin0

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Hey ! got a working MS-2933 ( thx @kuze ) as a replacement for my beloved Windy 2 ( same Toshiba tube as my Nanao 2931 driven Blast City)

i knew it's a different Yoke and that i would need to calibrate everything. !

It boots ok but i can't get the H size to fill the screen. Everything is maxed out in the Service menu ( H size and H size limit)

tried to mess with the H drive pot on the chassis with zero improvement...

Didn't mess with b+ and flyback pot yet.

read the ms-2931 manual a few times ! Can't find the R-SHIFT ajustement in the service menu ...? Does it even exist ? :P

Any clue where to look at ?

thx !
 
When I was running a MS2933 in a Windy 2 it filled the screen but I had to max out the H size in service menu.

If that's not sufficient in your case, then I'd recommend checking with 'grantspain' on Arcade Otaku. He's pretty knowledgeable on this stuff and helps a lot in the Monitor tech section. I don't think he's here on A-P but other users may have tips as well.
 
kuze said:
When I was running a MS2933 in a Windy 2 it filled the screen but I had to max out the H size in service menu.

If that's not sufficient in your case, then I'd recommend checking with 'grantspain' on Arcade Otaku. He's pretty knowledgeable on this stuff and helps a lot in the Monitor tech section. I don't think he's here on A-P but other users may have tips as well.
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thanks! Also posted on AO !

i read that messing with the D drive pot was not a good idea ! I hope i didn't screw up :P
 
I had this issue on my ms2930 had my h pot maxed out on chassis and on the remote board ended up being the hv pot on the chassis . Just had to turn it down just a hair and I got all my adjustment back. There’s also a jumper on the ms2930 that switches from narrow to wide. I don’t have a clue if It’s the same for ms2933
 
Williamcritchfield said:
I had this issue on my ms2930 had my h pot maxed out on chassis and on the remote board ended up being the hv pot on the chassis . Just had to turn it down just a hair and I got all my adjustment back. There’s also a jumper on the ms2930 that switches from narrow to wide. I don’t have a clue if It’s the same for ms2933
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most ajustment on the 2931 and 2933 are made via the OSD. There isn't any adjustment pots on the chassis other than H drive , HV ajust , B+ and XPro. There is no jumper on the 2931 and 2933 unfortunately.

managed to get full screen with recalbox RGB jamma pbc, atomiswave PCB, some Mister arcade cores ( CPS2 CPS1 , Batrider) !!!!

I can't get full screen for PGM games and Mister Cave cores.

Will try adjusting b+ and flyback strenght /focus but i'm not really sure if it can really help for this issue.
 
Barth0lin0 said:
most ajustment on the 2931 and 2933 are made via the OSD. There isn't any adjustment pots on the chassis other than H drive , HV ajust , B+ and XPro. There is no jumper on the 2931 and 2933 unfortunately.

managed to get full screen with recalbox RGB jamma pbc, atomiswave PCB, some Mister arcade cores ( CPS2 CPS1 , Batrider) !!!!

I can't get full screen for PGM games and Mister Cave cores.

Will try adjusting b+ and flyback strenght /focus but i'm not really sure if it can really help for this issue.
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Let's see some pics of that cab back up and running in full glory!!
 
nem said:
You can turn down HV adjust for a bigger (and slightly more out of focus) picture.
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You mean the siliconed pot on the chassis ? High voltage adjust ?
I
kuze said:
Let's see some pics of that cab back up and running in full glory!!
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Not a great pic !! Calibration is way off ! (focus , Colors , etc) my friend @Mrhide will help me for final calibration
 

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New issue : managed to make an adaptor for the “so tiny” degauss switch connector on the 2933 ( same as 2932)
Degauss doesn’t work .
Tried to degauss via the OSD and nothing happens …

Any clue ?

Thx
 
I am sorry if I hijack the thread. MS-2933 chassis is it the latest tri freq rev about the blast tube? Is it more reliable than MS-2930 manual and MS-2931 auto? Does it leak from the little cube part?
 
nonosto said:
I am sorry if I hijack the thread. MS-2933 chassis is it the latest tri freq rev about the blast tube? Is it more reliable than MS-2930 manual and MS-2931 auto? Does it leak from the little cube part?
Click to expand...
MS-2933 is the updated MS-2931: almost the same. Not sure if it's more reliable. It does leak (black goop). My 2933 was cleaned before i bought it.
 
Small update: Geometry and color calibration was succesfully done with the help of the great @Mrhide .

b+ was ajusted to correct voltage,
We didn't mess with the High voltage ajustment. ( should we ? )

those 2 problems remain;

1) Maximum H size is not enough for most PCB i own, both 15 and 31khz PCB sources. H size for some Mister cores (example batrider) and my Recalbox RGB Jamma emulator pcb is ok ( does it output a wider image than Cave games ??? )

2) The CRT degauss is working on startup but it doesnt work throught both the service menu and the degauss button switch. Can it be a faulty relay on the Chassis. It's not a big deal but i would like to make it 100% fonctional .

Any Clue ? @nem suggested to turn down HV ajust but i dont have the tools to test high voltage stuff...
Is there any capacitor related to H size that could be replaced ?
Is there any Windy 2 owner with nanao 2931 or 2933 with the same issue ? @cruzlink2 ?

any help would be highly appreciated !

thx

Simon
 
Does anyone know if the plastic tray from the original Toshiba chassis is interchangeable with the Nanao MS29? I have a MS2933 ready for this but it is missing the plastic tray and metal frame.
 
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