Re: Tech: EM Little Chief 10 pt not scoring

On Mar 9, 3:08 pm, "cody chunn" <cchu...@xxxxxxxxxxx> wrote:
Thanks for the reply Steve.

The usual cause of something like this is the EOS switch on a score
reel.  When you score 10 points, the 10 point relay should energize to
adavnce a 10 point score reel and sound the chime.  The 10 point relay
will stay energized until the EOS switch on a 10 point reel opens.  If
that switch does not open, the relay will stay energized and you can't
score 10 points anymore.

Is that the EOS for the reel step solenoid? Not the other three switches on
the reel that have the plastic actuator?


That's right. If you pull in the solenoid coil, the switch should
open at the end of the stroke.

You said the relay was previously locking on, so the 10 point reel EOS
switch probably needs adjusting.  Since the 10 point relay no longer
energizes at all, I'd guess the coil burned up the last time it locked
on.  Check the resistance of the coil, or try jumpering a wire to it's
terminals to see if it will fire.

I think the 10 pt relay coil is OK. It's not discolored and sometimes it
will score one time and chime once before it locks on. But, to test I jump
from where to the coil lug?


You can jumper a wire from the Green-Black wire on the coil to any
Yellow wire. There is a Yellow wire on switch 1C of the 10 point
relay if you can get at it. If it is still locking on sometimes then
the coil is fine. I thought you said it was locking on before but no
longer is energizing at all.

Another problem I forgot to add: The game is always in 4 player. Press start
once, you get 4 players. Nothing I could do would reset the 1-4 can play
display back to 1. I couldn't even find the unit that controlled those
lights. I was going to try to track that one down after the 10 point problem
but ran out of time.


The Coin unit is responsible for selecting the number of players. Try
pulling in the reset coil plunger and see if it springs back to the 1
player position. It's likely gummed up, but if it does reset you'll
need to trace the circuit to find out why the reset coil is not firing
when you hit the credit button.

Steve Yates
.

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