(Topic ID: 283003)

judge dredd, lamp issues

By Preacher

3 years ago



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  • 6 posts
  • 3 Pinsiders participating
  • Latest reply 3 years ago by zaza
  • No one calls this topic a favorite

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the lamp matrix (resized).png

#1 3 years ago

Hi!

New to the site and new to the wonderful world of pinball and nostalgia!

Got myself a Judge Dredd a couple of weeks ago as my first pinball machine! it was awesome! Played "till my fingers bled"!

But when i started to realize that there is more to pinball than just hit the ball with the flippers I noticed some of the lamps was kinda weird. 3 lamps didn´t work at all (but I thought the lamp was just fried.). Then I realized that some lamps who that aren´t supposed to light sometimes do just that (weakly though).
I started to scour the internet and started reading up on lamp matrixes and realized that perhaps some diods are fried? yesterday I checked all the lamps in the settings and there were a lot of them! almost every lamp I tested had others light to.

So my question is really, is there an easy fix to this? perhaps one fried diod is making a lot of others go nuts? The game works and brings joy but I´m concerned of its value if i want to sell it futher on. I have zero knowledge and skill in this but my father loves this stuff (bonding opportunities!) so I´m willing to at least try.

I also has an issue with the deadworld diverter. It works when tested, but the diverter dont divert the third ball (unmodded machine).

I did a matrix summary (hope it works):
The small numbers are the other lamps that lights (weakly) when the main is tested

I am grateful if someone can advice or help me.

the lamp matrix (resized).pngthe lamp matrix (resized).png
#2 3 years ago

I thought initially that it was limited to a 6 lamps rectangle but then I notice that many rows/colums have the problem. I doubt that diode is the culprit or they are multiple diodes failing.

Have you tried the lamp test mode, to see whether you get the same problem ?

It might be the IC that order the lamps that has a problem.

Also you could check that wires are not shorted, by taking the continuity between the lights that are lit. The voltage on the lugs as well.

#3 3 years ago

Judge Dredd has this odd connector close to J136 that works as a magnet.
Plugging this connector onto J136 does this kind of lamp matrix mess up.

https://pinside.com/pinball/forum/topic/can-someone-explain-the-j136-connector-judge-dredd-lamp-matrix-issue#post-3158828

#4 3 years ago
Quoted from zaza:

Judge Dredd has this odd connector close to J136 that works as a magnet.
Plugging this connector onto J136 does this kind of lamp matrix mess up.
https://pinside.com/pinball/forum/topic/can-someone-explain-the-j136-connector-judge-dredd-lamp-matrix-issue#post-3158828

This looks really promising! Can´t wait to go home and test!

#5 3 years ago
Quoted from zaza:

Judge Dredd has this odd connector close to J136 that works as a magnet.
Plugging this connector onto J136 does this kind of lamp matrix mess up.
https://pinside.com/pinball/forum/topic/can-someone-explain-the-j136-connector-judge-dredd-lamp-matrix-issue#post-3158828

It worked!!! all the glitching lamps stopped!!! thank you very much!
And you to jimy_speedt for taking your time to write!

Now I only have to figure out how to get the diverter working properly.

#6 3 years ago
Quoted from Preacher:

It worked!!! all the glitching lamps stopped!!! thank you very much!

Great, I love easy fixes

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