Super Nova/Hyper 64 Problems

[artoffighting]

I have a Super Nova and two Hyper 64 (generation 1).
Whenever there is a loud sound in game, the screen flickers.
Happens on both boards.
Any ideas on what's going on?

Your help is appreciated,

AOF

 

[chris1]

I have a Super Nova and two Hyper 64 (generation 1).
Whenever there is a loud sound in game, the screen flickers.
Happens on both boards.
Any ideas on what's going on?

Your help is appreciated,

AOF

I'm going to say:..Somehow when that loud sound occurs it's creating a slight power surge taking away from your power supply causing a flicker on screen..

Maybe tweaking the power supply a tad high could fix the problem..
I'd take a voltage reading of the 12V to see if it dips,jumps at all when this occurs..

Also:make sure the Harness and edge connectors are super clean mmaking good contact..
If harness pins are not tight on the edge connector it may be cause a bad/weak connection..

 

[artoffighting]

Makes sense.
I'll check it out.

Thanks,

AOF

 

[ttooddddyy]

As chris said measure the voltages from the PSU, see if they are dropping significantly, the 12 volts dipping should not effect the video (unless supanovas require 12 volts which I dont know of ?) unless its really being dragged down causing the psu 5 volts to become unregulated.

What are the max current ratings of the 5 and 12 volt supplies. Should be marked on the PSU.

 

[Charles Franklin Fernandez]

Since you have rev. 1 boards, did also you attach that extra harness to the +5V and GND?

Charles