(Topic ID: 94736)

Idol constantly triggering on RBION


By akm

5 years ago



Topic Stats

  • 20 posts
  • 11 Pinsiders participating
  • Latest reply 2 years ago by PinballT
  • Topic is favorited by 2 Pinsiders

You

Linked Games

#1 5 years ago

I'm trying to figure out why my idol is constantly triggering on its own on my RBION. I have read old threads about the topic, and it seems the most common cause is the window the optos shoot through gets dirty. I took the under playfield magnet and opto off, cleaned the window and opto, and it's still giving me the same problem. How common is it for the the idol/opto board to go bad? I can't think of much else that would be wrong, when I try to cut the opto connection manually (by hand) it seems like they register properly. Here's a video of the issue in action:

#2 5 years ago

If you haven't already, take some Novus 1 and clean the opto thoroughly on the playfield side (not under the playfield). This has happened on mine a few times.

#3 5 years ago
Quoted from akm:

How common is it for the the idol/opto board to go bad?

Could be the board, but try replacing the optos if you haven't already. They do wear out and all the lights around the idol area will trigger phantom hits. If the other optos in the game may be factory, best to change them too. The super ramp pair are more hidden, but the shrunken head optos will act up when they get old.

#4 5 years ago

Thanks for the tips guys. I'll see what optos cost, and depending, I might try to replace those first. I've been playing with the wires disconnected and fortunately the game knows to compensate for it (the far left, lower tombstone will count as an idol hit and activate the magnet).

Since it's been mentioned, I do actually have an issue with the head opto. Although, I'm not sure if it's the opto or not--sometimes the ball will get stuck up there after hitting a lit head mode (the magnet doesn't activate and the ball sits up there). Not a huge deal, a quick slap on the side of the machine fixes it. Still, it wouldn't hurt to fix that too.

#5 5 years ago

Replace the optos. It's time. Technically, you only need to do the send (lit) side. For kicks, you can swap the send and receive sides. Assuming this hasnt been done yet, the opto that was receiving will now glow much brighter, but it looks cooler to have the lit one under the playfield.

Your magnet post has a flat spot. Replace it or if you are neat enough you can remove it, file it and reinstall it. These issues are very common to routed Ripleys.

-Jeff

1 month later
#6 5 years ago

Lifting up an older thread. Did this get solved? The reason Im asking is that Im about to get a RBION with same kind of failure.

#7 5 years ago

If the optos are intermittent, that implies they are working fine from a component standpoint. This usually is a result of cracked solder joints for the opto, or on sterns/segas with the narrow beam of light, misalignment.

First, get a white piece of paper and hold it over the receiver side (you can tell as one side is the one obviously shining a light). Hold this over the other opto that receives the light, and you can see if the bean lines up with the opto on the other side. If not, adjust.

If this is not the issue, then I would be removing both opto boards and reflowing the opto solder pads and the connections to the boards.

#8 5 years ago

This is likely a long (very), but check your tombstone and sling leaf switches. One of mine wasn't gapped right and it was awarding points on ball launch. Also, what else is on the circuit of the idol? Check them.

2 weeks later
#9 5 years ago
Quoted from RoadRunner:

Lifting up an older thread. Did this get solved? The reason Im asking is that Im about to get a RBION with same kind of failure.

Not yet. I ended up blowing my flipper transistors about a month and a half ago and so my game has been out of commission since (hopefully should be back up soon once I order some new flipper coils). The tombstone was compensating for the Idol area when I disconnected the opto boards. Doing some of the recommendations posted earlier in the thread didn't help my situation. I am probably going to take the route of picking up a new opto board, they don't seem to be too expensive. Although, I am going to give that paper trick a shot to make sure the opto beams are lining up properly.

1 year later
#10 4 years ago

Bump for same issue.

Time for a super noob question: How do I properly adjust the optos? When I use my finger to push the receiving opto off to the side to line up with the bottom opto, the problem resolves itself. How do I adjust the alignment of the optos?

I know it's likely insanely easy, but I'm still learning

#11 4 years ago

bad opto/board in video just replace both very cheap had the same issue now its perfect as far as adjustment when put back together it should be lined up unless somthings way off..... hmmmmm

#12 4 years ago

Sounds good. I'll buy a new opto set and if that doesn't work I'll trouble shoot it from there.

1 month later
#13 4 years ago

Sorry I never got back to this. I ended up replacing the opto board as well as the opto under the magnet (I didn't touch the one above the playfield, too hard to get to). It ended up fixing the issue.

The problem may have even just been the opto itself, but I replaced it and the board at the same time since it was cheap. The opto glowed much, much brighter after replacing it.

1 year later
#14 2 years ago

Help! I am having same problem. My question is that it checks fine in test mode for switch. I look at the board and it is lit very dimly and in test mode it is lit really bright. I switched the boards with the shrunken head and same result and the board works on the shrunken head. When it's not in test mode, the light on the board kind goes with GI lights when blinking. Also both lights are very dim. Could it be a ground issue?

#15 2 years ago

If you changed the board then I'd look into changing out the opto. This very issue happened on mine, I ordered the 7 Dollars opto with the leads and swapped it out. No issues since.

#16 2 years ago

Thanks for info! I thought it would not be the opto's because they work great during test mode. I wonder why the difference? Where did you order the opto with the leads? Marco's is sold out.
Thanks!

#18 2 years ago

AWESOME! Hopefully this will do the trick

#19 2 years ago
Quoted from PinballT:

Thanks for info! I thought it would not be the opto's because they work great during test mode. I wonder why the difference? Where did you order the opto with the leads? Marco's is sold out.
Thanks!

The opto will still test fine, but start screwing up during gameplay. I had a second RBION recently and it had the same problem. Opto replacement fixed it just like on my first machine. I'm not sure if it has anything to do with a dim opto beam (it was like that on both my machines before replacing), but when you put in a new one it will shine nice and bright under the idol.

#20 2 years ago

Thanks so much!

Promoted items from the Pinside Marketplace
From: $ 18.00
Apparel - Men
Pinside Shop
Trade
From: $ 149.00
Playfield - Toys/Add-ons
Sparky Pinball
3,800 (OBO)
Machine - For Sale
Jacksonville , FL
$ 49.95
Lighting - Led
Pin Stadium Pinball LEDs
From: $ 40.00
Cabinet - Other
Rock Custom Pinball
From: $ 42.00
Cabinet - Shooter Rods
ModFather Pinball Mods
$ 16.50
Lighting - Led
Lermods

Hey there! Got a moment?

Great to see you're enjoying Pinside! Did you know Pinside is able to run thanks to donations from our visitors? Please donate to Pinside, support the site and get anext to your username to show for it! Donate to Pinside