Accidetally locked my jurisdiction during saferam clear.
SilverFerret:
I was changing some games on my game maker for the first time but had watched a friend do his on an older model game maker. I guess mine as a newer model asked different questions during set up and as I was trying to key through the jurisdiction setting I landed on jurisdiction 2 and keyed it. I had seen a posting on this site about jurisdictions and now wish I had paid more attention. Long story short is that my coin comparitor doesn't work and now I can't seem to change any of the saferam settings anymore. It doesn't let me. It just tells me... please keyswitch to continue but didn't let me change anything such as jurisdiction or coin accepter or the like.
Any help is appreciated.
Thanks, Jim
AnotherTech:
Just RAM clear it again and start over. :61-
SilverFerret:
I believe that is what I did twice. P-10 clear chip with #7 & 8 dip switch in the up position unless you're reffering to something different.
Thanks, Jim
ricker:
Hey Jim,
Don't know if you have manual or not, but complete ram clear requires all switches ( #1 thru #8 to off) to be turned. Most of us just use #7 & #8 for unlocked jurisdictions, to change games, mains, graphics etc. etc. Worth a try.
Richard
# 1 Autoplay
# 2 Ignore Checksum
# 3 Show State Status
# 4 Host Override
# 5 Printer/Hopper Overide
# 6 Watchdog Overide
# 7 EEPROM Clear
# 8 Ram clear (tm here)
If all goes well you shoud be able to make your choices(buttons or touch screen), before turning key for next choice.
StatFreak:
The chip that stores the jurisdiction is the small 96C56 EEPROM in socket U3. (See attached picture.) A normal full SafeRam clear will not affect it.
If you have locked your jurisdiction, you have two choices:
1. If you own an EPROM burner, you can simply pull the chip and erase it electrically, using the burner's electrical erase command*. This takes just a fraction of a second.
These chips don't have a UV window, so an EPROM UV eraser won't work or be needed here.
Once you've erased the chip, simply turn on SW1 switches 7 & 8, put the clear chip in P10, power up, and perform a full clear. You'll be able to choose a new
jurisdiction during the setup.
Note: Once you've cleared the EEPROM, the machine will not boot in normal mode and you will get a BSOD. This is normal. Just setup the clear and complete it.
2. Buy a "deep blue" clear chip from Jim (Blueridge slots) to clear the jurisdiction. This "special" clear chip resets the data in the above chip.
Personally, I recommend option 1, even if you don't already own a burner, because you will then be able to use the EPROM burner to back up all of your game chips, mains, and graphics. Of course, if you don't already own a burner, option 2 is less expensive in the short-term, but short sighted IMHO.
*When setting up the burner, choose chip 96C56B (16 bit) no matter what the last letter displayed on the chip is.
Here is a link to a prior discussion about this problem. We have since confirmed that erasing the chip allows a successful full clear and jurisdiction reset.
Here is a picture of the chip in question.
StatFreak :31-
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