FM-Pac and Panasonic FS-A1FX

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Por rolins

Champion (418)

Imagen del rolins

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

Por Pentarou

Champion (394)

Imagen del Pentarou

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.

Por rolins

Champion (418)

Imagen del rolins

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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Por Pentarou

Champion (394)

Imagen del Pentarou

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}

Por rolins

Champion (418)

Imagen del rolins

06-01-2009, 21:00

Yes! It works! Smile I replaced the broken 78L12 and now +12v is restored. I'm getting msx-music from the FM-Pac. Yay! Smile

Major thanks to Erikie and Pentarou for guiding in the right direction. You guys are great!

Por Erikie

Champion (324)

Imagen del Erikie

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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