action76
Active member
Does anyone have a document or know of one for troubleshooting and repairing the reset section of a MK2 type sound board? If not, any advice would also be appreciated.
Thanks.
Thanks.
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Does anyone have a document or know of one for troubleshooting and repairing the reset section of a MK2 type sound board? If not, any advice would also be appreciated.
Thanks.
Other then the manual (http://www.crazykong.com/manuals/MortalKombat2.man.pdf), I could take a whack at helping you. What's the problem with it? Perused the schematics, PDF Page 72 has the sound board's main overview. RST is hooked up to.. Two Flipflops.
Oh, wait. Page 76 details the reset circuits themselves. User Reset and Power-On Reset. Looks really simple. Hex Inverter and Schmitt Trigger on Poweron Reset line, User has NAND Gate and Schmitt Trigger. 4.7k Pull-up for biasing.
Sorry, rambling. So describe your problem, what's the thing doing?