Who works on Super Cobra PCBs

gsrogers

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I have 2 Super Cobra PCBs that have no sound but working otherwise.,
Looking for some help getting them 100%
Thanks
Garry
 
I have 2 Super Cobra PCBs that have no sound but working otherwise.,
Looking for some help getting them 100%
Thanks
Garry
I would love to fix them for you, but shipping both ways over the pond makes it not worth it.
Check your -5v voltage. Super Cobra uses -5 in the sound output for the preamp opamp at location 3A.
 
I have a 3rd board set that is working so I can confirm power supply and wiring are working.
 
The sound issue will almost certainly be on the top CPU board. Check the AY sound chip first. I've fixed a number of Stern/URL/Konami boardsets over the years.

Scott C.
 
Still looking for a repair tech that cost is less than value of board.
Not trying to be cheap, just does not make sense to repair with higher cost than just buying a working board.
Thanks
 
With the Scramble/Super Cobra boards the sound issues are often just the amp. Save yourself a bunch of shipping and repair fees and just shotgun the amp.

 
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