(Topic ID: 234799)

EBD - Keeps awarding credits


By DesertPinhead

9 months ago



Topic Stats

  • 17 posts
  • 7 Pinsiders participating
  • Latest reply 9 months ago by DesertPinhead
  • No one calls this topic a favorite

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#1 9 months ago

I LOVE EBD (Eight Ball Deluxe) - my fave game since I was a kid. Lately, when I shut it off for more than a few minutes, it shows 25 credits when I turn it back on. Then, when I start playing it, the game awards a credit on the first ball when the ball rolls through either the A or B lane at the top of the game. Any suggestions on what's gone haywire?

#2 9 months ago

My guess is credit threshold is set very low to implement "freeplay"

#3 9 months ago

Good thought! Thank you. But that wouldn't explain why 25 credits appear after the game's been off for a little while.

#4 9 months ago

Do you play several games and ever see it go below 25 credits?

#5 9 months ago

Yes. I can knock it down to 21 credits by starting four players. Then I shut it down...wait....power it up and I have 25 credits.

#6 9 months ago

I have a similar issue with my Stern Quicksilver, but sometimes it randomly assigns a different number of credits at start up. Stern copied the Bally boards so it’s probably a design flaw in the boards, not a problem with your game

#7 9 months ago

Update. Now the game isn't powering up. MPU LED flashes twice, then nothing.

#8 9 months ago

Do you have a battery on the MPU or NVRAM? I would go to NVRAM if you have not already. This seems like the start of an issue around the battery and U8.

#9 9 months ago

Look at the 5101 U8 I think. Garbage in there. Go into test mode and clear all your audits. But if you only have two flashes it’s probably bad or it’s socket. Any corrosion on the board?

#10 9 months ago
Quoted from Skidave:

Do you have a battery on the MPU or NVRAM? I would go to NVRAM if you have not already. This seems like the start of an issue around the battery and U8.

I have a battery holder attached to the floor of the backbox with leads running to the MPU. I made that mod several years ago and it's worked great since 2008.

#11 9 months ago
Quoted from jj44114:

Look at the 5101 U8 I think. Garbage in there. Go into test mode and clear all your audits. But if you only have two flashes it’s probably bad or it’s socket. Any corrosion on the board?

Board is clean - no corrosion. I moved the battery off the board when I rebuilt the machine more than a dozen years ago. When you say "it's probably bad or it's socket," can you expand on that, please?

#12 9 months ago
Quoted from bluespin:

I have a similar issue with my Stern Quicksilver, but sometimes it randomly assigns a different number of credits at start up. Stern copied the Bally boards so it’s probably a design flaw in the boards, not a problem with your game

Not by design it doesn't. One thing the manufacturers were extremely anal about when moving to solid state was ensuring that free credits don't just magically "appear".

You either have a corrupted set of 5101's at u8 and 13 in your quicksilver, have not cleared out garbage from the audits after a dead battery replaced, or you are starting it up without batteries in it (or the 5101's are losing their memory for some other reason). Ditto with the OP with the EBD but it's just going to be u8 only.

Time to swap old 5101's for some nice new NVram.

#13 9 months ago

I pulled the U8 chip, straightened the pins, and replaced it. Still no love. You said, "Time to swap old 5101's for some nice new NVram." What does that mean and where do I order the parts? Thanks, slochar!

#14 9 months ago

Pinitech sells NV ram, as do several others. Look at the ads at the top or bottom of pages you view, and you will likely see somebody's ad for the NV Ram.

#15 9 months ago

OK, I've been researching 5101 NVRAM. It looks like there are a couple folks who sell an adapter gizmo that plugs into U8. Looks like I'm looking at about $20. Am I on the right track?

#16 9 months ago
Quoted from DesertPinhead:

OK, I've been researching 5101 NVRAM. It looks like there are a couple folks who sell an adapter gizmo that plugs into U8. Looks like I'm looking at about $20. Am I on the right track?

http://techniek.flipperwinkel.nl/ballyss/rep/index2.htm#flash yeah looks like no 3'rd flash is the 5101 , inspect the socket as well probably replace it if your comfortable with the soldering

yeah those NVRAM things are great and your on the right track

#17 9 months ago

Hey, everyone, thanks for your advice and support. Wayne Eggert at Pinitech.com set me up with a 5101 NVRAM replacement chip and it works great. It arrived yesterday and I installed it while i was home for lunch...and I was late getting back to the office. EBD lives again! My boys and I are so pleased that we decided not to put the game back together right away. We're going to shop it on Saturday afternoon. Parts will be here later today.

I've been a pinball nut since I as a tyke. I'm 57 now. This hobby wouldn't be near as much fun without the Internet and people like you willing to help out your brother pinheads. I'm proud to be a member of this fraternity.

Next up for repair and shop service...Six Million Dollar Man! There's a tech issue with that game, too, so you'll be hearing from me. This is going to be an important repair because my older son wants this game in his apartment at college next fall.

Thanks again!

Bruce
Scottsdale, AZ

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