(Topic ID: 358273)

Surf Champ schematic differences

By MarkG

23 days ago



Topic Stats

  • 4 posts
  • 4 Pinsiders participating
  • Latest reply 21 days ago by mojonitro
  • Topic is favorited by 2 Pinsiders

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#1 23 days ago

A participant at a recent online repair clinic asked me about a variation he discovered in two versions of the Surf Champ schematic. He has an original schematic that came with his game, and a recently purchased schematic copy. But they're not the same. He found that only the original schematic matched the wiring in his game, and helped him resolve the issue he was having.

I'm curious which version matches the wiring in your game.

Here are some of the differences in the two versions:
Surf Champ schematic differences (resized).jpgSurf Champ schematic differences (resized).jpg
The highlighted differences have to do with how the F/Extra Ball relay is cleared or released. I think both versions clear the Extra Ball as the ball is returned to the shooter lane. Version A uses a Score Motor switch at 3B and a switch on the P/Add Player Unit relay to release the F/Extra Ball relay in a pretty standard lock in circuit configuration. Version B instead uses a trip relay (7B) in the Sequence Bank that resets at about the same time - a clever if unconventional alternative.

If you have a Surf Champ, which version (A or B) matches your game? The easiest way to check might be to count the switches on the F/Extra Ball relay. Version A has two normally open switches and two normally closed switches. Version B has one normally open, one normally closed, and one make/break switch. Alternatively you could check to see if there is a normally closed switch at Motor 3B with a red-green wire.

Since there are different numbers of switches on the F/Extra Ball relay between the two versions, there must also be other schematic differences where those switches are used. I don't have full schematics to compare.

I suspect that most (all?) Surf Champs are version A with four switches on the F/Extra Ball relay. What do you have?

/Mark

#2 23 days ago

My Surf Champ is “A”.

Surf Champ is the four player version. Surfer is the two player version. I wonder if the two versions were wired differently and the problem is that the schematic name is simply wrong?

#3 21 days ago

Hi,

This was my issue. Thanks Mark for sharing.

I've attached two snips from the "B" schematic that shows the four-player reset circuit along with lights for a four-player game.

Cheers,

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#4 21 days ago

I have the A version. 4 switches, two NO and two NC. But, I have the "revised" schematics from PBR, that shows the M/B switch.
Jim

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