Par rolins
Champion (418)
02-01-2009, 03:08
I found a 78L12 at Digikey, is this the correct one? I want to make sure before I place an order.
search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=MC78L12BP-APMSCT-ND
Par Pentarou
Hero (513)
02-01-2009, 03:56
The one you linked is rated for just 100mA, to be sure compare it against the ratings of the part that your are going to replace.
02-01-2009, 05:49
I'm unsure of the mA rating. The only markings it has is this...
78L12 ACP [Motorola symbol] 818
I'm thinking this might be the MC78L12ACP search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=MC78L12ACPFS-ND
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02-01-2009, 08:17
Yeah, it's probably the 78L12ACP (Datasheet : here ). So it's a 100mA part and the replacement you found on digikey should be OK.
{mod: fixed link to pdf}
06-01-2009, 21:00
Yes! It works! I replaced the broken 78L12 and now +12v is restored. I'm getting msx-music from the FM-Pac. Yay!
Major thanks to Erikie and Pentarou for guiding in the right direction. You guys are great!
Par Erikie
Champion (324)
06-01-2009, 21:33
I am glad it was something simple as replacing the power converter. Had a simular thing with my 3rd slot I created in 8250. Forgot to add the 12V and got no sounds but the rom worked fine. So that is why I pointed you in that direction.
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I replaced the broken 78L12 and now +12v is restored. I'm getting msx-music from the FM-Pac. Yay! 