What's wrong with my supergun/4-slot setup?

Circa2113

Circa2113

Duck King's DJ
10 Year Member
Joined
Oct 15, 2006
Posts
1,886
Well, I ordered a 4-slot and supergun, and when I get everything connected and power up the supergun, I get this mess on the screen:

img0175qw1.jpg


Any help would be greatly appreciated.

Oh, and go ahead and laugh at the composite video cable, I know it sucks.
 
Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,762
That looks bios related, correct me if I am wrong. If its a socket pull it out and put it back in.
 
Circa2113

Circa2113

Duck King's DJ
10 Year Member
Joined
Oct 15, 2006
Posts
1,886
Xian Xi said:
That looks bios related, correct me if I am wrong. If its a socket pull it out and put it back in.
Click to expand...

No luck, thanks for the tip though.

Anyone else know what the issue could be?
 
Circa2113

Circa2113

Duck King's DJ
10 Year Member
Joined
Oct 15, 2006
Posts
1,886
channelmaniac said:
Have you checked the 5v line to see if it's not too low?
Click to expand...

With a voltmeter, you mean? If so, where would I find this wire? If it is reading too low, how would I fix it?

Sorry for nothing but questions...
 
Rengoku

Rengoku

Duck King's DJ
Joined
May 20, 2005
Posts
1,885
i have the same problem..

it can't be bios related 'cause myself can play that 4 slot in the cabinet perfectly..is the supergun that give me that problem..
i tried either unibios or the original one

mkl told me that maybe the +5V line have a too thin cable i changed it from the jamma harness to the PSU but nothing changed..
i realized that my SG have others thin cables inside i want to change them one by one


wait for him like me :P

btw can you post a pic of your SG?
 
Rengoku

Rengoku

Duck King's DJ
Joined
May 20, 2005
Posts
1,885
ok, MKL told me that is a connection problem, cable-wise

check the diameter of the +5V and ground cable they have not to be too thin
check also the PSU line to the SGfor the same problem..i have some fuse on that line that *can* give problems i'll try bypassing

another question that comes in my mind is how much current does the 4 slot absorb..i think is higher than a normal 1 slot but how much?
and the PSU how much current can provide?
 
Rengoku

Rengoku

Duck King's DJ
Joined
May 20, 2005
Posts
1,885
fixed..my problem were the cable from the PSU to the SG that was interrupted by 2 fuses (+5 and +12)
i linked the cable directly and now it works
 
werejag

werejag

Galford's Poppy Trainer
Joined
May 3, 2005
Posts
2,626
that shouldn't have caused a problem. thx for telling us
 
ttooddddyy

ttooddddyy

PNG FTW,
Joined
Nov 29, 2001
Posts
8,335
Always measure the 5 volts at the boards edge connect not the psu as there will be voltage dropped in the harness. 5 volts at the psu could end up being 4.5 at the board wich is way low.

If the 5 volts is low it would usually cause a full green with a few gtx glitches towards thew LHS, like you see when the systen boots under normal circumstances prior to the Neo Geo start up jingle.

I agree the effect looked to be more bios related than low 5 volt supply.
 
Circa2113

Circa2113

Duck King's DJ
10 Year Member
Joined
Oct 15, 2006
Posts
1,886
ttooddddyy said:
Always measure the 5 volts at the boards edge connect not the psu as there will be voltage dropped in the harness. 5 volts at the psu could end up being 4.5 at the board wich is way low.
Click to expand...

Could you explain exactly what you mean? :help:

Sorry, I'm clueless when it comes to PCB/supergun stuff.
 
Dean

Dean

Choi's Clawmaker
Joined
Jan 26, 2003
Posts
4,821
Not enough power on the +5V. That supergun has an SC200 power supply with it. Only some 4-slots will power up with that power supply.

When I get the chance to get the workshop put together (hopefully soon) I will be working on a simple adapter to use computer PSUs with these superguns to avoid these problems.
 
Circa2113

Circa2113

Duck King's DJ
10 Year Member
Joined
Oct 15, 2006
Posts
1,886
D-Lite said:
Not enough power on the +5V. That supergun has an SC200 power supply with it. Only some 4-slots will power up with that power supply.

When I get the chance to get the workshop put together (hopefully soon) I will be working on a simple adapter to use computer PSUs with these superguns to avoid these problems.
Click to expand...

:D :D :D :D

D-Lite FTW!
 
You must log in or register to reply here.
Top