4 slot video issue (where to start with fixing traces etc???)

NGT · Oct 24, 2009

EDIT: update with picture at the way bottom (post 18)

4 slot video issue (where to start with fixing traces etc???)

thanks

just turned on the cab today for the first time in a while. It worked fine last time I played it, a few months back. Now it looks like this.

grantspain · Oct 24, 2009

reseat carts and check +5 volts

NGT · Oct 24, 2009

grantspain said:
reseat carts and check +5 volts

I reset all of the carts a few time, tried just one cart, used different carts...no change.

As for the 5v. It's all of the way up. This psu is running a neo system and a naomi system, but has always worked fine like this. I unplugged the naomi system completely and the neo system still has the graphical errors. The only thing I can think off with this mobo is that the battery has been gone for a while. I have to swap the system to free game choice every time I boot it up, after a week of waiting or so. Maybe it leaked?

Xian Xi · Oct 24, 2009

Could be it leaked on some traces. Snap some pics.

NGT · Oct 24, 2009

I don't see much, little dark spot around the bottom, but not much. I have those red foam pads under it, glued on, so it I didn't get that underside shot. I can tear them off I guess, unless you can tell if it's leaking from these pics.

Anything else that could cause this issue?

I tried it on another 4 slot cab and got the same results on the image.

Xian Xi · Oct 24, 2009

In the bottom pic it looks like it's leaking from the bottom side. I would remove the battery anyway and just do the battery mod in the future. There could be some nasty stuff under it.

NGT · Oct 24, 2009

Xian Xi said:
In the bottom pic it looks like it's leaking from the bottom side. I would remove the battery anyway and just do the battery mod in the future. There could be some nasty stuff under it.

Any tips on removing the pad? blow dryer? or just rip it off?

Xian Xi · Oct 24, 2009

I just tear it off. I sometimes use a stiff eraser to get the black stuff off.

NGT · Oct 24, 2009

Xian Xi said:
I just tear it off. I sometimes use a stiff eraser to get the black stuff off.

cool...

also, the toshiba chip right next to it looks to be corroded on the battery side. white crystal looking stuff and some greenish goop on the metal pins. Time to buy a new mobo? or is it fixable? Looks like it got under the green film on the board too. I see some separating in one spot. Looks bad huh...

Xian Xi · Oct 24, 2009

It's fixable.

NGT · Oct 24, 2009

Xian Xi said:
It's fixable.

cool. so, step one, swap battery.

Step 2...?

clean chip? replace chip? something else?

thanks by the way

Xian Xi · Oct 25, 2009

I think it's more like:

Remove battery
Clean area
Fix traces
Test Board

If you want to put another rechargeable one use one that has some clearance from the board so that if it starts to leak you can see it.

NGT · Oct 25, 2009

Xian Xi said:
I think it's more like:

Remove battery
Clean area
Fix traces
Test Board

If you want to put another rechargeable one use one that has some clearance from the board so that if it starts to leak you can see it.

thanks for the tips. I'll get on that today.

what's the best battery?

chris1 · Oct 26, 2009

Watches Thread >..

I know tis is going to Hit me one of these days bro

Xian Xi · Oct 26, 2009

NGT said:
thanks for the tips. I'll get on that today.

what's the best battery?

Rechargeable?

NGT · Oct 28, 2009

finally got a minute to get the battery and again wasn't sure what battery to get. I figured rechargable, but many said they needed to be charged before use etc...

can someone link me straight to one that would work so I at least know what to weed out.

thanks

Xian Xi · Oct 28, 2009

You can use a 3.6v with at least 50mAh capacity. Most people use cordless phone batteries. Just remember that you only have so much space because of the upper board. If you put one on thats too thick it's better to mount it inverted under the board so you have enough room.

NGT · Oct 28, 2009

Xian Xi said:
You can use a 3.6v with at least 50mAh capacity. Most people use cordless phone batteries. Just remember that you only have so much space because of the upper board. If you put one on thats too thick it's better to mount it inverted under the board so you have enough room.

thanks! I was thinking of mounting it somewhere else using wires. Is there any problem with that? issues?

NGT · Nov 8, 2009

still think it's fixable? Where would you start...?

Xian Xi · Nov 8, 2009

I would first wash that board. Use a multimeter and check continuity for all the traces surrounding the area. Also check under the board, too.

SSS · Nov 8, 2009

MKL is the shit, and all you 4 slot owners better bookmark the following thread:

http://www.neo-geo.com/forums/showthread.php?t=131636

norton9478 · Nov 8, 2009

If you are still stuck, Channelmaniac can solve it. And cheaply.

NGT · Nov 8, 2009

I am having a hard time knowing what to look for. I have two pins on a chip near the battery leakage that the pins were completely green and after removing the green stuff, showed no solder connecting those two end pins....except on the bottom of the board where the pics go through. The green stuff seems to have worked it's way into those holes. The actual chip had some green on it where the metal goes down the middle of the chip too. I have multiple traces near the battery where the trace is black. time to pull out the multimeter...

norton9478 said:
If you are still stuck, Channelmaniac can solve it. And cheaply.

That would be nice. Thanks for the heads up.

4 slot video issue (where to start with fixing traces etc???)

J. M Club, ,

Crazed MVS Addict

J. M Club, ,

JammaNationX,

J. M Club, ,

JammaNationX,

J. M Club, ,

JammaNationX,

J. M Club, ,

JammaNationX,

J. M Club, ,

JammaNationX,

J. M Club, ,

POCKETBIKE NUT,

JammaNationX,

J. M Club, ,

JammaNationX,

J. M Club, ,

J. M Club, ,

JammaNationX,

neo retired

So Many PostsNo TimeFor Games.

J. M Club, ,

So Many Posts
No Time
For Games.