- Joined: 06 Nov 2018
- Posts: 1
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SMS Mark2 no output
Posted: Tue Nov 06, 2018 8:47 pm
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Hi All,
I have recently dug out my very old Mark 2. Visually it looks OK but there is no output. I have checked the voltage regulator - 7805. It seems fine, 10v input and 5v output. Any help or suggestions welcome. Are there any fuses on this model I need to check ?
Many thanks
Gerry
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- Joined: 14 Mar 2013
- Posts: 62
- Location: Belgium
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Posted: Wed Nov 07, 2018 10:32 pm
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On the mega drive, the fuse is before the 7805 so I'm guessing that if you get 5V out that the voltage is ok.
Maybe capacitors ? You could check voltage on all ICs just to be sure.
Or maybe it's just your cable ?
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