Vic 20 with almost no color

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eslapion
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Re: Vic 20 with almost no color

Post by eslapion »

Geronimo wrote:Yeah I know Q1 is for sound and I did check the pin order, seems ok.

I measured and got 2.976 Volts and 5.15 Volts across R9. Is guess this is normal?
Across ?

I assume you measure relative to ground. You're supposed to get close to 3.3v on one lead of R9 and close to 5V on the other lead - relative to ground.

If you get 5.15v on one lead then it means your power supply gives a bit too much power but that's another issue entirely.

IMHO, a scope is required to get this one diagnosed properly.
Be normal.
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