(Topic ID: 151143)

RFM: Lamp Matrix A out, Blowing Fuses

By Rustyck

8 years ago



Topic Stats

  • 6 posts
  • 4 Pinsiders participating
  • Latest reply 8 years ago by Rustyck
  • Topic is favorited by 1 Pinsider

You

Linked Games

#1 8 years ago

I just got around to working on the RFM I picked up awhile ago and managed to get everything fixed up on it, except for the lights on lamp matrix A. I changed the bulbs, changed the fuse and upon startup, it keeps blowing the F111 fuse. I'm thinking there is a short somewhere, but this is new territory for me.

My kids really love the game, but with half the lights off, you really lose alot of excitement.

Any guidance on helping to diagnose and fix the game would really be appreciated!!

#2 8 years ago

UPDATE: Pulled all the PF lamp connections from the board yesterday and am still blowing F111 fuse on boot up.

#3 8 years ago

Check the large diodes in the Upper Right of the Driver Board. they are basically the Bridge Rectifiers. Mine was doing something similar. Pinball Ninja has a great video on this.

#4 8 years ago

If your diodes check out good make sure there isn't a light tab against a coil lug anywhere.

#5 8 years ago

Pull the lamp matrix connections from the board and then see if the fuse blows. This isolates board vs wiring.

#6 8 years ago

Thanks for the help guys~!
I already disconnected all the lamp connections from the board and it's still blowing fuses on startup, so it's definitely a board issue. Planning to check the large diodes out this weekend, will update soon~

Promoted items from Pinside Marketplace and Pinside Shops!
$ 95.00
Cabinet - Sound/Speakers
Pinball Mod Co.
 
4,000 (OBO)
Machine - For Sale
Milan, PA
$ 46.99
Lighting - Interactive
Lee's Parts
 
$ 11.95
Playfield - Toys/Add-ons
ULEKstore
 
From: $ 45.00
Boards
KAHR.US Circuits
 
From: $ 1.00
Playfield - Other
Rocket City Pinball
 
$ 79.99
Cabinet - Armor And Blades
PinGraffix Pinside Shop
 
$ 79.00
Boards
PinballReplacementParts
 
$ 85.00
$ 8.99
Cabinet - Other
Inscribed Solutions
 
$ 84.99
Playfield - Decals
FlyLand Designs
 
$ 1.00
Pinball Machine
Pinball Alley
 
$ 5.00
Playfield - Protection
UpKick Pinball
 
4,500
Machine - For Sale
Bethlehem, PA
Hey modders!
Your shop name here

Reply

Wanna join the discussion? Please sign in to reply to this topic.

Hey there! Welcome to Pinside!

Donate to Pinside

Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!


This page was printed from https://pinside.com/pinball/forum/topic/rfm-lamp-matrix-a-out-blowing-fuses and we tried optimising it for printing. Some page elements may have been deliberately hidden.

Scan the QR code on the left to jump to the URL this document was printed from.