Drop target opto triggered by flipper

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SteveTheGeek
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Drop target opto triggered by flipper

Post by SteveTheGeek »

Hi everyone,

I seem to have a new issue with my Flintstones.

When I use the right flippers (and sometime the left flipper), one of the drop targets opto (3rd for the 4 drop targets bank) triggers as if the target just dropped. This is easily reproducible in test mode.

Have you ever seen such an issue ? Any hint as to what could cause the issue ?

Thanks !

Steve

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sylvain
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Re: Drop target opto triggered by flipper

Post by sylvain »

The first thing I would check for are for any cold solder joints on that opto, and reflow header pins as necessary, as it appears sensitive to vibrations currently...

Bonne chance!
- Sylvain.
Looking for Bally Star-Jet, Capersville or The Wiggler, Williams Magic City, Grand Lizard, Swords of Fury, 1986 Pinstar Gamatron, and a few others.
Collecting & repairing electro-mechanical and solid state pinball machines with quality and care for over 35 years.
Serious and fun hobby, powerful nostalgia !

SteveTheGeek
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Re: Drop target opto triggered by flipper

Post by SteveTheGeek »

Thanks, I'll take a look at that, appreciate the feedback.

SteveTheGeek
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Re: Drop target opto triggered by flipper

Post by SteveTheGeek »

Looking online, I found a post on Caitlyn's blog about the same exact issue with a Flintstones and indeed it was a problem with the flow on the opto pins, I'll test this as soon as I can !

SteveTheGeek
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Joined: Tue Jan 21, 2014 3:53 am
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Re: Drop target opto triggered by flipper

Post by SteveTheGeek »

I just wanted to follow up on this, for documentation purposes. The 4 drop target bank opto board was repaired by one of the previous owner and the board work was just terrible. Broken flows, replaced by a wire, etc. Replacing the board fixed the initial issue 100%.

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