c64 power supply question about the 9V

[lief138]

OK, so I am at the point of building my mb-6582 that I need to test the power before I plug it in. I looked at the pinout information and see that all three of my psus have pins 2(gnd),4(5V),6(9V),7(9V).

I tested the first one and got 5V as expects but I got 0 on pins 6 and 7.

I tried the other ones and got the same.

I read around and discovered that I needed to change the setting on multimeter to AC for the 9V pins so I tried that on all three of them but still got 0.

I know that at least one of these supplies worked fine before I messed with it.

I read a couple of other posts around here saying that this means the power supply is bad.

Is it possible that i broke then testing the AC pins with the DC setting on my multimeter?

Is there any other way I could check. My multimeter is old and cheap, perhaps its retarded?

It seems hard to believe that they are all broken in exactly the same way.

Any ideas?

Thanks, Lief

[lief138]

forget about all that I just said. My man Nils set me straight. I just wasnt testing the 9V pins the right way. I was trying each one with the ground pin instead of touching both the 9V pins...

Thanks Nils!