(Topic ID: 191886)

Stern Spider-Man (SAM) Firing (nearly?) All Switches at Once


By MikeCP

2 years ago



Topic Stats

  • 14 posts
  • 7 Pinsiders participating
  • Latest reply 2 years ago by michiganpinball
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#1 2 years ago

Hey all,

I have two separate problems that I'm thinking/hoping are related with my Spider-Man.

The first is simpler to explain. I have trouble booting the game up, occasionally. There doesn't seem to be a rhyme or reason to the why/when. But I'll flip the game on. Lights will come on, lights will cut out, reboot begins, repeat. Only way I've been able to stop it (and get it to actually fire up for good) is to remove backglass and hit the reset button a few times.

2nd problem is that every once in awhile, while I'm playing, something happens and a bunch of switches fire at the same time. Feels like all coils fire. Multiballs start (if they were a shot away), and the game sometimes kicks out a ball (if MB doesn't start). I haven't been quick enough to notice if this was happening as a result of some switch firing. If I recall correctly, it's happened when the ball has been floating around (not hitting any switches).

I bought it 2nd hand, and it works great otherwise.

Can anyone give me any ideas as to where I should start?

#2 2 years ago

Go into switch test and see if switches are triggering on their own.

#3 2 years ago

They are not.

And I've gone through and fired individual switches/coils and I haven't yet seen that cause the issue.

3 weeks later
#4 2 years ago

Gonna bump this once more.

I just shopped the game. LEDs, cleaned and waxed, rebuilt flippers. Looks and plays great.

Except my original problem seems to have gotten worse.

Let me try and simplify my question:

What could cause all (maybe not all, perhaps it’s just a single row/column) switches to close randomly during gameplay? It seems to happen most during multiball up in the pops, but I swear it also has happened when the ball is free floating.

#5 2 years ago

Everything tests just fine in switch matrix.

I can pretty confidently say that this is not a single switch causing others to close, but some weird combo (or none at all? See my free floating comment). Is there something I can check/test in the power? I’m not much of an electrician.

#6 2 years ago

Tap the mpu lightly (rattle it but don't break) with the backside of your screwdriver. Look for corrosion below the batter holder.

#7 2 years ago
Quoted from cougtv:

Tap the mpu lightly (rattle it but don't break) with the backside of your screwdriver. Look for corrosion below the batter holder.

Forgive my ignorance, but I'm not sure which component is the MPU on the cpu/sound board. That said, I inspected it pretty damn closely (including removing the battery) and it all looks pretty fine to me.

#8 2 years ago
Quoted from MikeCP:

and a bunch of switches fire at the same time. Feels like all coils fire. Multiballs start (if they were a shot away), and the game sometimes kicks out a ball (if MB doesn't start). I haven't been quick enough to notice if this was happening as a result of some switch firing. If I recall correctly, it's happened when the ball has been floating around (not hitting any switches).

This is the ball search. When no switch hit is detected for a time the machine thinks the ball is stuck somewhere and fires all the coils to try and free it.

#9 2 years ago
Quoted from TimeBandit:

This is the ball search. When no switch hit is detected for a time the machine thinks the ball is stuck somewhere and fires all the coils to try and free it.

Oh no, haha. That's not what I'm describing.

This is not just coils firing to free a ball. Many switches actuate/close, impacting gameplay. New modes start, multi balls start, and yes, some coils fire. I only point out that it seems to sometime happen when the ball is free floating to rule out that possibility that a single switch is causing a short that makes other switches close. It'd be a lot easier to diagnose if that were the case.

#10 2 years ago

You should start by taking notes as to which switches and coils are registering/firing.
Knowing which switches are triggering could help understand if it is a switch matrix problem.

#11 2 years ago

How easy is it to reproduce? If fairly easy just go into switch test and kick a ball onto the p Layfield and close the coin door. Then play for a while watching the dmd and see if some particular switches are triggering multiple switches.

#12 2 years ago

It's not very easy at all. And it happens really fast. It's been hard for me to see what switches fire. I think there are at least two groups that fire on two separate occasions. One that includes the slingshots (they both fire) and others, and one that includes (I think) all of the green goblin standups (cause the mode starts). It's like I need to film the game so I can go back and look.

#13 2 years ago

get your phone out and video it in slow motion...

Neil.

#14 2 years ago

I have seen something similar on STLE. Occasionally a whole bunch of switches fire at once. I think it is ALL the opto switches. It is very intermittent but it has happened when the game is in switch test. But the switches activate so quickly you cant possibly read them because they scroll so fast. The problem will go away for a couple weeks them come back. Tried changing opto boards and checking connections. If the 12v to the switch matrix drops then all the optos would probably fire but the 12v seems to be steady. Frustrating - haven't been able to figure it out.

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