Well - I think I'm actually fine with +20VAC reading because I'm getting
that reading from a DMM that's not true RMS (Root Mean Square). My
roommate gave me an equation that helped to clear things up. Take 6.3 and
multiply it by 2 * sqrt(2) and you'll get about 17.8. (Correct me if I'm
wrong). My DMM is showing between 19 and 20 so I feel safe. The other
alternative of course is using a scope, which I've also done.
So yes, the resister R932 should be .68 ohm 1 watt and not 68 ohm like the
Parts list says and 6.3 VAC is correct - not 63 VAC. If someone wanted to
explain the RMS issue in more detail - I think it would be a good thing to
add in to Mark Jenison's G08 document for those that are somewhat new to
troubleshooting.
Matt
> The quesiton I have is - In the G08-003 Schematics - the resistor R932 is
> shown as .68 ohm 1 watt resistor. In the Parts list, it's shown as a 68
> ohm resistor. ...and then on the schematics, pin 7 of the HV unit is
> showing +63VAC while Mark Jenison's description shows pin 7 as being just
> +6.3VAC.
>
> So - right now I'm getting +20VAC on that pin. I'm wondering if I've got
> the wrong resistor in at R932. Should it be .68ohms or 68 ohms? I'd love
> to have this game completely fixed by Christmas. :)
Received on Thu Dec 3 11:51:53 1998
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