Tech. Sound board interface error ???

[H.O.P.]

Can anyone tell me what this is, I keep getting this mssg when I start up
the IJ.

Sound seems to work normal in the game.

Thanks

Koos

--
Welcome to The House of Pinball http://www.iae.nl/users/vlamings

[Ray Johnson]

H.O.P. wrote:
>
> Can anyone tell me what this is, I keep getting this mssg when I start up
> the IJ.
>
> Sound seems to work normal in the game.

Try removing and reseating all of the ribbon cables in the backbox.

Other than that, it may be a bad custom chip on the MPU board, or bad
connection to it- try pressing on the chip to make sure it is seated
well in its socket (this is the big square chip in center of board.)

Hope that helps!

--
Ray Johnson
Action Pinball & Amusement - Fully Restored Pinball Machines -
Salt Lake City, Utah - Sales, Parts, Service, Circuit Board Repair -
E-Mail: ray...@simsteel.com Finest quality, best service- guaranteed...

We're serious about pinball. Anything else is just for fun!

[Ray Johnson]

Joseph A. Dziedzic wrote:
>
> I received this message when I installed an update L-3 sound ROM in my game
> (to go along with the L-7 game ROM). I tried re-seating all the cables but
> nothing worked. I finally installed the original L-2 ROM and the message went
> away.

This same problem can occur in Twilight Zone when going up to 9.4H or
9.2 game ROM with L-2 sound ROM. Doesn't happen always, and often can
be cured by either reseating the PLCC chip on MPU board or power cycling
the game. Sometimes it won't go away though, and you have to revert
back to old ROM.

Wish WMS could shed some light on it, but I imagine it's a tough problem
to track down.

[Joseph A. Dziedzic]

I received this message when I installed an update L-3 sound ROM in my game
(to go along with the L-7 game ROM). I tried re-seating all the cables but
nothing worked. I finally installed the original L-2 ROM and the message went
away.

FYI.

Joseph Dziedzic
F-14, TZ, CFTBL, IJ

In article <7uq8os$68k$1...@news.IAEhv.nl>, "H.O.P." <vlam...@iae.nl> wrote:
>Can anyone tell me what this is, I keep getting this mssg when I start up
>the IJ.
>
>Sound seems to work normal in the game.
>

>Thanks
>
>Koos
>
>
>

[H.O.P.]

Problem is solved,

I Placed the new version L-7 of the IJ gamerom in and did this before I did
replace the soundrom L-3,
I searched and searchd, tought also the flatcables but nothing worked.
Then I dezide to place the old rom back and problem was solved. I replaced
both eproms again for L-7 and the sound L-3 and now it works fine.

Thanks for reply.

Koos