(Topic ID: 159923)

Indiana Jones '93: game acts erratically


By pinballOsp

3 years ago



Topic Stats

  • 21 posts
  • 10 Pinsiders participating
  • Latest reply 3 years ago by pincredible
  • Topic is favorited by 2 Pinsiders

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#1 3 years ago

[just got the game so this is a real bummer]

1. started with shadow digits flickering on the display during gameplay [fine before]
2. game reboots
3. pressing the diagnostics test button resets game
4. pressing starts will play music from random scenes, e.g., multi ball. Ball won't launch
5. more random digits displayed on the screen when a game is started

Obviously (?) looks like an electronic problem but my question is: what should I start replacing to get this game going ?

I do have a RoadShow which I think has some compatible boards.

Any hints on what to try would be super-duper appreciated -- it just sucks not to be able to play the game at all --- thank you !!

#2 3 years ago

Just a shot in the dark but it couldn't hurt to reseat all of your ribbon cables.

#3 3 years ago

Look to see if there is any battery corrosion on the CPU board.

#4 3 years ago

Please post a high resolution picture of the lower section of the CPU from the batteries to the connectors.

#5 3 years ago

Test your voltages.

#6 3 years ago

Thanks so much everyone -- I will do when I find time.

YeOldPinPlayer: "test your voltages" -- which ones do you mean, specifically ?

#7 3 years ago

-- Cpu pics attached (pinside kept failing with "could not get upload ID" for high res, I'll need to look into it; med-res attached)
-- reseated many of the connections, now in test mode the entire display is strobing and has some extra characters
-- the game now starts with jackpots lit, doesn't launch ball, display still weird
-- when the game starts up display + animation are perfect
-- sound is unaffected
-- when I start-up there is an error, I think it's with the drop targets but I can't tell since going to test mode strobes so you can't read anything

IMG_0151_(resized).JPG

IMG_0152_(resized).JPG

#8 3 years ago

WOW! This is one of the cleanest WPC boards I've ever seen ... you may want to consider replacing the alkaline batteries with lithium ones. They cost a lot more, but they will last for at least 5 years and are a lot less likely to leak.

Your ribbon cable on J211 is on upside down, but this is fine as long as its backwards on both sides.

#9 3 years ago
Quoted from pinballOsp:

Thanks so much everyone -- I will do when I find time.
YeOldPinPlayer: "test your voltages" -- which ones do you mean, specifically ?

Look at your schematic and find the voltage feeding your CPU or MPU. Does your power supply output the correct voltage? Is that voltage dropping by the time it gets to a specific component due to high resistance somewhere along the path?
If your DMM doesn't show anything amiss my next step would be a logic probe testing individual chips.

#10 3 years ago

Check under the path of adventure towards the bottom, there is a diode there, and it gets bent in a way that it makes contact with metal, and causes all kind of problems, I would check there first.

#11 3 years ago

That board looks brand new

#12 3 years ago

Thanks everyone -- I realized I should have been more clear -- this game has been working 100% on the east coast (certified by a tech). It was transported here by STI and other transport this bullshit started happening.

So it's not leakage, or that sort of thing.

#13 3 years ago
Quoted from balboarules:

Check under the path of adventure towards the bottom, there is a diode there, and it gets bent in a way that it makes contact with metal, and causes all kind of problems, I would check there first.

Yes check that out. Mine was adding another player to the game via the Narrow Escape outlane switch.

Switch matrix freaks out.

#14 3 years ago

Checked out the diodes (great tip) but they are good. Just in case, disconnected the entire path of adventure board (4 cables); no change.

When inspecting wires, I noticed some are old and crumbly. Two 'super ball' connections crumbled in my hand. I am assuming this is not the problem, but it is disconcerting.

In the meantime the issue is slightly worse. After the initial "Indiana Jones" screen things are now blank with an occasional blink of gibberish. Same for test mode -- things are mostly blank with an occasional blink of gibberish (initially the display was on most of the time).

Maybe a short somewhere, looks like it may be a matter of tracing all the cables 1 by 1 to figure it out -- unless someone has a better idea ?

#15 3 years ago

Do you have another WPC game to try swapping the ribbon cables ?

#16 3 years ago

I do not -- I didn't realize Red & Ted's was WPC-S.
I caved and asked a local tech to take a look. I will update when I have the answer -- by now I just really want to know and play the game

#17 3 years ago

Mike the local tech stopped by today (shout out to Mike!) and here's what we found

- the wires that came off the Super Ball make a circuit with the Start button; once they were soldered back on, the game was starting again
- display was totally jumbled/non-existant today
- test buttons stopped responding

The 5V voltage on the main board was only about 4.82V, low. Shout-out to YeOldPinPlayer as he suggested that really early on.
We plugged and unplugged some stuff, no effect.

[then a miracle happened]

Game started working fine, voltage went up to 4.88. Still low. Perhaps the extra 0.06V was enough to make the difference, we don't know. The plan is to install a daughter board to get the voltage closer to 5V.

I played the game for almost 1.5 hours today, no problems whatsoever: everything works. WTF. Welcome to mechanical devices!

#18 3 years ago

Congrats!

#19 3 years ago

If I can make a suggestion, try one of these instead of the daughter board, there is a very tiny pot screw on the unit that allows you to adjust the voltage, I replaced all my daughter boards with these and every game is now adjusted to 5.10 in case several games are running, and it works perfect.

http://www.ezsbc.com/index.php/featured-products-list-home-page/psu5.html#.V0CLd74giUk

Just be careful with the pot screw, it is very tiny and if you turn it too far you will lose it, and make sure you turn the game off each time you adjust it. And a tiny turn is all it takes for an adjustment.

#20 3 years ago
Quoted from pinballOsp:

Game started working fine, voltage went up to 4.88. Still low. Perhaps the extra 0.06V was enough to make the difference, we don't know. The plan is to install a daughter board to get the voltage closer to 5V

This is your game and it's entirely up to you on the avenue you want to take to fix it, but this game was engineered to provide 5V to the CPU and if it isn't, something is not working properly. I personally tend to shy away from these type of quick fixes as they have a tendency to mask the problem in the short term, but they usually come back and bite you in the ass later on.

#21 3 years ago

Sounded like ribbon cable was off a row.

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