(Topic ID: 213300)

Frankenstein Head Servo Question


By Crash

1 year ago



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  • 9 posts
  • 4 Pinsiders participating
  • Latest reply 1 year ago by Crash
  • No one calls this topic a favorite

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#1 1 year ago

I'm helping someone with their Frankenstein, the head servo is not working. A new servo and aftermarket controller board have been installed. After trying this with the original plug configuration, I did some reading and determined the wiring is different on newer brand servos. Here is how I have it currently wired, which is not working. Is it possible I could have damaged the servo by wiring the motor and sensor wires up backwards? What is the correct wiring scheme for these colors?

image (resized).jpeg
image (resized).jpeg

#2 1 year ago

If you look at the manual that came with the aftermarket controller board, it will tell you.

I am not home right now to check, but I am pretty sure that black should be on black. And Blue/red on either side.

5 months later
#3 1 year ago

Bump if anyone has any advice.

#4 1 year ago
Quoted from Crash:

Bump if anyone has any advice.

I can take a picture for you tomorrow, and sort this out.

#5 1 year ago

That would be awesome, thanks. Please include the board and connector in the photo.

#6 1 year ago

I had a broken servo and was following that thread:

https://www.flippermarkt.de/community/forum/threads/frankenstein-problem-mit-kopf-servo-geloest.179035/#post-1526801

As mentioned in post #1 there, I swapped the black and red wire and it worked for me (using the original motor driver board)

seems there is different types and configs on servo connectors...
not sure why yours is not working..

#7 1 year ago

Thanks for that, I saw and read the below thread which was mentioned as well:

https://pinside.com/pinball/forum/topic/frustrated-with-frankenstein

Turns out the aftermarket board I have may very well be dead due to a bad chip. I have the black and red wires swapped and the blue wire connected straight through. Looks like the board will flash the LED regardless of if the servo is working or not. I need to rule that out.

#8 1 year ago

sometimes on ebay you'll find the original servo, it just a airtronics remote control car servo, I bought one about 2 yrs ago for like $10

#9 1 year ago
Quoted from Hazzard:

I can take a picture for you tomorrow, and sort this out.

Any chance on a picture of your board and how the servo is connected?

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