Hi all from Italy!
My TI-99/4A suddenly doesn't power up!
So I've disassembled the machine to isolate the internal power supply.
Now I have, as from the photos, the power supply and the external original transformer.
How can I test the voltage with my multimeter?
Where have I to insert the red probe and the ground probe to measure the voltage for the transformer and for the power supply?
You'll find all the photos attached...
Many thanks in advance!
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