Glitchy sound with MVS carts

Hello again

I have to cartridges:

Supersidekicks ultimate 11

King of Fighters 94


Both have glitchy sound
When power on and NEO-GEO LOGO is showing there have not glitchy sound.It begins after the logo hide and the game begin

The pictures of the "King of fighters 94" :

http://www.picvalley.net/v.php?p=u/1545/208650908720304317141261849415xOiaLPAqtAKg6EsufsvV.JPG


The red ellipses means that it have missing peaces from the contact lines
Can be this the problem with the sound?
What can you recommend?
What else I must check-lines,chips etc



Thank you

Since you have 2 carts with the same problem you need to look at what they have in common which is the cart slot. Make sure you clean the slot as it could be very dirty.

Check both carts for any broken traces.

Yes I'll clean them on monday.
Which traces must check?

arakissun said:

Which traces must check?

Click to expand...

I would check all of them but you only need to check all the traces from the V chips and maybe the M1.

How many games do you own and are these the ONLY 2 that do this?

I have about 15 games,only these two have this problem
Can you give me some schematic of the connections?

After good cleaning the sound is OK

Thank you for the support

Christ.. Put that cart in the bin where it belongs, it's fucked.