(Topic ID: 51643)

Tech: T3 sound issues

By Elfman

10 years ago


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#2 10 years ago

Strange. I doubt you'll find much posted about similar issues.
Which fuses blew, and what power circuits do they fuse (check your manual)?
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The Place to go for Pinball Repair Info

#14 10 years ago
Quoted from Elfman:

Rats! Just played again and it came back. Not as bad as in the video, but it was there.
So I am going to blame the Whitestar Sound OS on this one as referenced by this service bulletin: http://www.sternpinball.com/SB/ServiceBulletin_157.html
I checked my LED1 flashes at it looks like I am version 2 of the sound OS. They have since released up to version 8.
Now my problem is that I don't have an EPROM burner to burn this version of the bootFLASH to a 512K chip. Not sure I am confident enough to go down the path.
Does anyone know where I might obtain this bootFLASH chip? Could I even possibly borrow one from someone who might have one?

Uh-oh.
Do you have the WhiteStar MPU, or the modified (Atmel based) WhiteStar MPU.
Backward compatibility between the two is dicey.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The Place to go for Pinball Repair Info

#17 10 years ago
Quoted from markmon:

The 5300 is the newer of the two. You could try swapping the mpu board and roms with your Independence Day and see if the problem moves, goes away entirely, or stays.

Bingo! Good idea.

In reading SB157, it says that T3 was the first to use the new CPU board. I was under the impression that it still used the older board. Stern may have transitioned during the run, but I don't have a way to know that with certainty. Curiously, T3 isn't listed in the game/OS version list contained in SB157. Hmmm.

My prior comment about backward compatibility was in the context of using the newer MPU in an older game. The newer board will work, but the sounds may be "off". I do know that you can't use an older MPU in a game designed to use the newer MPU. I know that for NASCAR in particular, the old board will produce no sound at all.

There are backward compatibility issues with the new board too, but only with respect to the OS, as the service bulletin indicates.

Your ID used/uses the older Sega branded MPU. It will be interesting to know if the T3 ROMs work correctly in it, and as markmon says, if the problem follows.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The new place for pinball repair info

#19 10 years ago

One more thought after watching the video you posted. Did you recently swap sound ROMs?

I've heard sounds like that from games where the sound ROMs were correct, but inserted into the wrong sockets. Although in the pic you posted, they look to be in the right order.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The new place for pinball repair info

#21 10 years ago
Quoted from Elfman:

I guess I may have to invest in a new Whitestar board or at least an EPROM burner to try and see if the Sound OS ver.8 helps.

If you need ROMs, contact our bud John Wart Jr. who posts here and is very helpful. Reputable seller.

His web site is...
http://www.thatpinballplace.com/eproms/index.htm

You may have to contact him directly for that specific ROM.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The Place to go for Pinball Repair Info

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