Operation Wolf Sound Issue

[Unit504]

I have this odd issue with the sound on my operation wolf.
All the sound works great except for the speech thats in the game.

All you get when it gets to the speech parts you just get a squeal type noise.

Is there anyway i can check something on the board or anything i could do to rectify it..?

donor sound board i have:

overall layout (needs alittle clean)

 

[Alpha1]

Hey,

Swap the sound boards over. Clean the other one up first.

 

[Unit504]

i know i know, did try the other one. But that doesn't seem to work at all.

How would i go about cleaning it..? being quite new to this..

Hey,

Swap the sound boards over. Clean the other one up first.

Unit5042011-01-21 09:15:03

 

[paulcan69]

Check which pins are the 12v going in, see if you actually have 12v going in (maybe 12.5v maybe 13v)

You can't adjust 12v so as long as you have that amount of power all good, as it could be a bad wire?

Next push down on the chips in sockets (on the sound board) to make sure they are home and seated ok.

Next check that ribbon cable, then maybe just steal the ribbon cable from you spare board and try just that?

Then pull all connectors away clean all contacts and try...

Then while game is running gently wiggle the wires to the sound board to see if the speech returns as it's running.

Lastly clean the spare sound board including cleaning all connectors and try that as Alpha said.

Let us know.

I can burn you a sound rom to try and also I have an op thunderbolt + loads of spare boards might have some op amps etc.. we can rob off of them?

Let me know how you get on.

 

[Unit504]

nice one, weekends here and ill be able to get a good look at it!

Will try all them thing you said, hopefully its just something loose!

on a plus note while i was taking the photos i thought id give the monitor a little adjustment as you could see them white lines through it, 5 mins later all sorted looks nice and clean/crisp now

Check which pins are the 12v going in, see if you actually have 12v going in (maybe 12.5v maybe 13v)

You can't adjust 12v so as long as you have that amount of power all good, as it could be a bad wire?

Next push down on the chips in sockets (on the sound board) to make sure they are home and seated ok.

Next check that ribbon cable, then maybe just steal the ribbon cable from you spare board and try just that?

Then pull all connectors away clean all contacts and try...

Then while game is running gently wiggle the wires to the sound board to see if the speech returns as it's running.

Lastly clean the spare sound board including cleaning all connectors and try that as Alpha said.

Let us know.

I can burn you a sound rom to try and also I have an op thunderbolt + loads of spare boards might have some op amps etc.. we can rob off of them?

Let me know how you get on.

 

[Alpha1]

I have a complete Op Wolf pcb somewhere if you're interested. In good nick, but I haven't tested it.

 

[Unit504]

yes would be interested

I have a complete Op Wolf pcb somewhere if you're interested. In good nick, but I haven't tested it.

 

[guddler]

Don't worry about checking the 12v. If it wasn't right you'd have no sound.

 

[paulcan69]

oh yeah!

 

[guddler]

The rest is probably relevant, I don't know the game in question. My gut feeling is that it's not going to be that simple but let's not jump to conclusions. We need to start somewhere and those are all valid things to start with

 

[Unit504]

thanks guys i will be checking tonight,
as i have also received back my monitor chassis for the GTi twin and can do them too