khabbi
New member
Just purchased a MK4 PCB, revison 3, and the board appeared to be in mint condition..
Fire it up, and everything check out.. then as I start to play, I notice a slight lag at the end of the screen before it goes to the next round, and a few other ever so slight lags in the video.. then once it got warmed up, it started to reset randomly... then as it stayed on, continuous.
When warmed up, it threw this code on boot up: Wave ram bank 0 error F9
The machine would then loop into a green screen, etc, then to the initial test.. and now it would not show the error... but would reset again to green screen, blue screen, etc.
I turned the machine off and let it sit for 15 minutes.. then it worked fine again until it got warmed up.. then it would randomly reset.
Here's a youtube vid of the screen and the board :
http://www.youtube.com/watch?v=hzQ4C12GecE
board installed in a z-cab that had a different MK4 board in it that worked fine, except that the color red as not present.. was determined to be in the board, the new board showed the red on the screen perfectly. A Ms. Pac man board installed into the cab worked fine (turned sideways though
Any ideas how to progress from here? Being new to collecting games, I must say this has been frustrating!
thanks for any help in advance!!
Fire it up, and everything check out.. then as I start to play, I notice a slight lag at the end of the screen before it goes to the next round, and a few other ever so slight lags in the video.. then once it got warmed up, it started to reset randomly... then as it stayed on, continuous.
When warmed up, it threw this code on boot up: Wave ram bank 0 error F9
The machine would then loop into a green screen, etc, then to the initial test.. and now it would not show the error... but would reset again to green screen, blue screen, etc.
I turned the machine off and let it sit for 15 minutes.. then it worked fine again until it got warmed up.. then it would randomly reset.
Here's a youtube vid of the screen and the board :
http://www.youtube.com/watch?v=hzQ4C12GecE
board installed in a z-cab that had a different MK4 board in it that worked fine, except that the color red as not present.. was determined to be in the board, the new board showed the red on the screen perfectly. A Ms. Pac man board installed into the cab worked fine (turned sideways though
Any ideas how to progress from here? Being new to collecting games, I must say this has been frustrating!
thanks for any help in advance!!
