Taking apart MVS cart - Questions

I was wondering if there is a standard layout for all the MVS carts in terms of the way the 2 boards are layed inside the cart. Im asking this because i dont want to screw up my carts when i open them up to clean them and put them back together the wrong way.

for example:

with ARROW piece of the case facing down:
All rom chips facing down
P and V rom board first then C,M and S rom board.

is that standard? correct?

Rom chips face the side of the case with the arrows, P and V rom board is closes to the arrow-side case and C,M and S rom board is furthest away.

is that right?

Just take a note of how they were in there just as you pull it out, and put it back the same way.

Yes its a standard lay out.
Also there are cutouts/keyways opposite the contacts on the boards, which are different on each board making it impossible to get the board in the wrong location (without brute force)

ttooddddyy said:

making it impossible to get the board in the wrong location (without brute force)

Click to expand...

HULK SMASH~!

Motw

Take the cart ..With the screw holes facing upwards..
With the PCB/board ends facing toward you

Take out the screws.

Lift up the top cover it'll open and go up towards the back of the case.
You'll see the chips facing up with the top board being the board with the two closer notches at the top
Notice there are two squares that fit into these notches or vise versa on the case.




When you lift up the top board you will see the bottom board also has it's Chips facing up but it has to further to the end notches that fill fit into the bottom case..



With the cart as it is ...the board separator (rectangle plastic piece)..
Has to be put in with the lower part of it on the bottom and the flat side goes towards the outside.


When you put the bottom board in it has to go in flush..Whereas the back of the boards height in the case matches the front in the board separator.

When I tighten the screws down..if they feel like they are getting tight(spongy) I stop because something just might not be lined up right...I'll open it up again and check.

Sorry about the big picks..I tried to make it into one big pick with smaller picks inside but I couldn't do it..
I started to make this before the topic was replied to/answered.


Please add to this anyone...

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This will be good for future searches

Nice post!
I think the time when you get screwed is with bootlegs.
I have a Puzzle Bobble which was rattling far too much, and I opened it to try to secure the PCBs better, but they just don't fit properly in the cart so it's going to rattle away - I assume it's a boot.

A bit off topis, but when you open a cart and there are the chips with holes you can see through (EPROMS????), should you always put some black tape over them to stop them losing data?

El Capitan said:

A bit off topis, but when you open a cart and there are the chips with holes you can see through (EPROMS????), should you always put some black tape over them to stop them losing data?

Click to expand...

No on the tape. Chips can only lose their info if they are introduced to a strong magnetic force or if the chip itself fries out from overheating.

Since you use an ultraviolet light to erase EPROMS (The ones with the windsows), it would be wise to cover the widnsows to keep sunlight from erasing them in exposed boards or clear carts.

norton9478 said:

Since you use an ultraviolet light to erase EPROMS (The ones with the windsows), it would be wise to cover the widnsows to keep sunlight from erasing them in exposed boards or clear carts.

Click to expand...

Agreed...100%

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I always put either a piece of black tape over them...or...I cut a piece off of one of the white label stickers sets that come with VCR tapes..

Nice pics, thanks.

Just as a sidenote, you may want to avoid flipping the upper part of the case at a 180 degrees angle to avoid breaking the label, especially with older ones.

I found out trying to keep it below 45 degrees would certainly not ease the operation (take out the 2 bords + spacer grouped in this case) but be safe for labels , should that be a concern to you

Happy MVS bootleg hunting !