Altered Beast Sega 16 Sound Suicide

noisuf

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Hi Everyone, I have on my way a working Altered Beast Sega 16 pcb.

I have read that Sega 16s had suicide batteries on the Z80s or the 68000s. Luckily, from what I've read is Altered Beast was on the Z80s and if battery died, only the sound is gone.

I've read that it's a simple eeprom recode to bring back the sound.

Is what I've read correct?

Thanks in advance.

Michael.
 
That's right, but isn't it the case that there is no battery as such in the encrypted Z80, therefore no need to replace it with a Z80B (and the sound ROMs/EPROMs) unless it has died?
 
Yes it is common for the z80's on theose AB's to die..
replace that with regular z80 and if i remember correctly reburn location a10 with correct mame file.
 
That's right, but isn't it the case that there is no battery as such in the encrypted Z80, therefore no need to replace it with a Z80B (and the sound ROMs/EPROMs) unless it has died?

No, you still need to replace it with a Z80B.
 
After re-reading...I understand. Not well today and it shows....

Z80A for Capcom CPS1s... I have a CPS1 board...is it a matter of if it aint broke, don't fix it? Or should I pre-empt and change z80 for z80a? When the Z80s go on CPS1 boards, is the symptom also lost sound?

Z80B for Altered Beast with ROM burn. Same question - is it a matter of if it aint broke, don't fix it? or pre-empt?

I'm asking these should I pre-empt questions due to someone near me having the tools to do these things and is willing to help. Not sure if he'll be available in the intermediate future if they start breaking....
 
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CPS 1, if it ain't broke, don't fix it.

Suicide games? Some folks are purists and hate to see a game modified. I don't like to modify games by rigging repairs, but phoenixing a suicided game isn't the same in my book.

If it were my board and I was going to keep it or if it was one I was fixing to resell I'd phoenix it in a heartbeat.

RJ
 
Thanks for the reply.

I'm a bit of a hoarder in general...haha

So I plan to keep all my games. Thanks for the advice on the CPS1 board and Altered Beast.

Altered Beast isn't going to arrive til late next month anyway...
 
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