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(Topic ID: 200746)

Weak Upper Flipper on Dungeons and Dragons

By jedi42

6 years ago



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#1 6 years ago
OP
 
SEL

jedi42

Pinside member

CA Cornwall, PE

9y 45,300 401 6 25

Hi all, I am at a loss here. On my Bally (6803) Dungeons and Dragons, here's what I have so far:
- the bottom right flipper has lots of power
- the top right flipper is much weaker, especially near the tip of the flipper.
- replaced the bushing
- replaced the flipper spring
- replaced the EOS on both the upper and lower flipper
- I have adjusted the EOS until I am blue in the face
- the flipper is not jamming, it is very loose and free

I jumpered the lower switch so that the upper flipper gets power as soon as the flipper button is pressed (trying to take the lower switch out of play), same thing.

Any suggestions? Should I now be looking at boards and where the power originates? If so, where/how would I start that process?

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#2 6 years ago
 
EVN

EvanDickson

Pinside member

CA Charlottetown, PE

10y 91,550 2,679 5 49

He's also replaced the coil, and the coil spec is correct (A24-570/34-3600), and seems to be wired correctly based on http://www.pinrepair.com/6803/#flip

*** additionally the upper flipper flutters if you use your finger to block it when it is just beginning to extend (source: was at Jedi42's house playing all his games and failing to solve his flipper issue).

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#3 6 years ago
OP
 
SEL

jedi42

Pinside member

CA Cornwall, PE

9y 45,300 401 6 25

For some more background, here is a picture of the lower flipper and EOS switch.

IMG_20171020_072658 (resized).jpgIMG_20171020_072658 (resized).jpg

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#4 6 years ago
 
EVN

EvanDickson

Pinside member

CA Charlottetown, PE

10y 91,550 2,679 5 49

I just heard from jedi42. The lower flipper was wired incorrectly, with high and low swapped. He's corrected this and now the upper flipper is fine.

5 months later
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#5 6 years ago
 
???

ShadowFlame76

Pinside member

Unknown

6y 23,550 118 1

I would love to see a picture of how the bottom flipper is supposed to be wired, and the top right, As i am having the exact same problem with my D&D machine..

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