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Title: Jamma Interchange Post by: xcaliber on March 01, 2015, 03:14:27 pm I have been looking for a Mortal Kombat one PCB and found one this weekend. Actually a friend of mine gave me a MK1 pcb (no audio board). He said he didn't think it worked, but I might get lucky if I pull and seat the chips. So I pulled, cleaned, and set the chips. Plugged it in to my Great 1000 Mile Rally cab and the screen is blank. I pulled the pcb and plugged my Time Killers in and got a blank screen. I know my Time Killers worked a couple of weeks ago, but I sold the cab that it was in and the MK1 cab I have is currently empty waiting for me to paint. Did I miss something? Shouldn't my Time Killers at least show a picture? Thanks in advance for any help.
Title: Re: Jamma Interchange Post by: iankellogg on March 01, 2015, 03:35:23 pm Jamma is interchangable. so if it isn't working then there is something else wrong.
Rule 1: Check power supplies. Title: Re: Jamma Interchange Post by: xcaliber on March 01, 2015, 03:47:13 pm Power supply giving 5.1 for +5 and 9.99 for +12
Title: Re: Jamma Interchange Post by: iankellogg on March 01, 2015, 03:49:00 pm that isn't good. is that with the game pcb plugged in.
Title: Re: Jamma Interchange Post by: xcaliber on March 01, 2015, 04:11:42 pm No.
Title: Re: Jamma Interchange Post by: xcaliber on March 01, 2015, 04:17:03 pm Checked while the game is running and 4.99 and 11.96
Title: Re: Jamma Interchange Post by: iankellogg on March 01, 2015, 04:45:26 pm sounds good to me. does the game play blind at least?
Title: Re: Jamma Interchange Post by: VertexGuy on March 02, 2015, 03:43:35 am try this.......
Does that Jamma harness/cab have neg 5 v >? Mk needs that voltage. Title: Re: Jamma Interchange Post by: xcaliber on March 02, 2015, 05:16:11 pm It does on the solder side, but not on the component side. No sound either Ian.
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