MonsterBash
Well-known member
Fustrated Robotron issue...last chance before I JROK it
I simply can out figure out this Robotron sound issue I'm having. I thought I finally got it yesterday then blame...gone again. I've spent sooo much time on this I could have easy wired in the JROK board a lot faster..sold my chit load of robo backup boards..and been way a head in both time and money. Here's the story...I've probably done more than list here to
The machine has a Bob Roberts switcher in it.
Yesterday I recapped and replaced the CPU (6208 i think) in 2 sound boards.
I stuck it in the machine and presto...sound..yaahhh. The next day..nothing. I just installed the second sound board..nothing. Board boards give me sound when I press the test sound button.
I've tried 3 different ROM boards (all had the pins re flowed). All 3 ROM boards play fine with no sound..all 3 used their own ribbon cable..thus 3 different ones
I tried 3 different CPU boards..again..all 3 play fine with no sound.
I have 5.05 volts at the sound board.
I've replaced the compete hardness (and tested it while it was out of the machine) minus the interface boards.
I tried another switcher (I have no idea why...just cuz I was out of ideas)
after every test and part swap I have sound VIA the test switch on the sound board...however..pressing the reset switch on the CPU resets the game but the sounds continues to play.
When the game boots on the ROM board the LED goes to 0...then will 'flick' to 3 (when the sound it suppose to fire I think) then back to 0
HELP!
I simply can out figure out this Robotron sound issue I'm having. I thought I finally got it yesterday then blame...gone again. I've spent sooo much time on this I could have easy wired in the JROK board a lot faster..sold my chit load of robo backup boards..and been way a head in both time and money. Here's the story...I've probably done more than list here to
The machine has a Bob Roberts switcher in it.
Yesterday I recapped and replaced the CPU (6208 i think) in 2 sound boards.
I stuck it in the machine and presto...sound..yaahhh. The next day..nothing. I just installed the second sound board..nothing. Board boards give me sound when I press the test sound button.
I've tried 3 different ROM boards (all had the pins re flowed). All 3 ROM boards play fine with no sound..all 3 used their own ribbon cable..thus 3 different ones
I tried 3 different CPU boards..again..all 3 play fine with no sound.
I have 5.05 volts at the sound board.
I've replaced the compete hardness (and tested it while it was out of the machine) minus the interface boards.
I tried another switcher (I have no idea why...just cuz I was out of ideas)
after every test and part swap I have sound VIA the test switch on the sound board...however..pressing the reset switch on the CPU resets the game but the sounds continues to play.
When the game boots on the ROM board the LED goes to 0...then will 'flick' to 3 (when the sound it suppose to fire I think) then back to 0
HELP!

