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(Topic ID: 304294)

Dealer's Choice Fuse Blowing

By Mr_Pinball

2 years ago



Topic Stats

  • 5 posts
  • 4 Pinsiders participating
  • Latest reply 2 years ago by hjh632
  • No one calls this topic a favorite

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#1 2 years ago
OP
 
PIN

Mr_Pinball

Gateway Pinball

3y 21,400 40

I'm trying to revive a Williams Dealer's Choice from the dead. I have a fuse that keeps blowing, labeled as fuse 3 in the picture attached. Would a rectifier keep blowing this fuse? I remember reading somewhere that Williams rectifiers of this era are prone to always go out. If it is not a rectifier, what else could it be?

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#2 2 years ago
 
???

bonzo71

Pinside member

US Boothwyn, PA

11y 57,300 1,248 32

Try to determine when it's happening. Is it blowing during reset or play? If during play, does i happen after you hit something specific on the playfield? I'd also recommend a visual inspection of all coils looking for one that appears browned or burned and different than he others.

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#3 2 years ago
 
LSW

Runbikeskilee

Pinside member

7y 43,150 722 10

I doubt it is being caused by a failed rectifier. When rectifiers go bad, typically the diodes in one or both legs will open circuit and either cause a reduction in DC voltage output or no voltage at all.

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#4 2 years ago
 
???

hjh632

Pinside member

5y 47,050 784

I can see in the picture that it's a 15A fuse. Where does that lead to on your schematic? I can't quite make out the wire colors but you should be able to from looking at your machine. The schematic is at the IPDB site,

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#5 2 years ago
 
???

hjh632

Pinside member

5y 47,050 784

I now notice fuse 1 & 2 are 6 volts, so they must be the ones on the left side of the diagram powering the lights.

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