Elvira weak flippers

Angry_Radish

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Posting here as I have more of a chance for a pinhead to see this rather over in repair, sorry.

I'm working on an Elvira pin with weak flippers.
I started by looking at the flipper assy's, EOS, etc.. but then popped the aux power board in my Big Guns and get the exact same symptoms. ~35something VDC to the coils rather than the 50 I should see. Input AC volts are fine.

Elvira isn't mine and is an unknown since the owner picked it up at a super auctions before they bit the dust. It's hacked and duct-taped together like nothing I've ever seen and I can only imagine how bad he got screwed buying this thing for it's game-room.

Is it possible they put in an Aux board rated for something different? I can't get a clear answer from him if the flippers always did that so I'm not sure if I should be looking at the board components or something bigger like the entire board. BR2 checks good and I even changed it for the hell of it since I wasn't getting reliable test results in circuit, though it tested just fine once removed.


Thoughts?
 
I would definitely look at all the connectors in the flipper and solenoid circuits. Check for mis-wiring and smashed/pinched wires too.

The manual should spell out the correct part number for the power supply.
 
Thanks Ken, looks like I have the right Aux PS board and I'm looking at the pins on the board now. It's bugging me that I can isolate it to the board by swapping into my big guns but can't seem to get any further. From looking at the schematics the 50v flipper part of the circuit should be the simplest part to troubleshoot on the board too! The only other components I see that I can't rule out/test are the 2 smaller caps, is it theoretically possible one of them could be dragging things down? I swapped the varistor and resistor from my known good board hoping the varistor was bad but no luck.



***EDIT***

Nevermind, I didn't get good solder coverage on the parts-side pad on R9, good to go now!
 
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