(Topic ID: 209074)

Cyclone Switch Levels Test

By Kickout

6 years ago



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  • 2 posts
  • 2 Pinsiders participating
  • Latest reply 6 years ago by wayout440
  • No one calls this topic a favorite

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#1 6 years ago

Following “Repairing Williams System 11 Pinball Part 3”, I was doing the Switch Levels Test and am looking for a little advice.
On the first part of the test with a clip lead connected to 1J10 pin 9 and the other end of the lead with a 4N4004 diode connected to it I touched each of the pins on 1J8 and get the following read outs
P1 Plumb Tilt 06 01
P2 Playfield Tilt 06 09
P3 Ferris Wheel 06 17
P4 Shooter Lane o6 25
P5 not used 06 33
P6 key
P7 M Wheel H opto 06 41
P8 not used. 06. 49
P9 Left Flipper 06 57

Now doing part two of the test. Test lead clip on 1J8 pin1, then touching each pin on 1J10 I get no reading on the Display other than Switch Levels Test 06.

So witch readings should I be getting? Do I have a cpu issue? Any advice and guidance is appreciated.

Kickout

4E8AA6F9-E9FC-431A-9501-920182D8963D (resized).jpeg4E8AA6F9-E9FC-431A-9501-920182D8963D (resized).jpeg

#2 6 years ago

Did you flip the diode around for the second test (switch rows)?

Columns: On the other end of the alligator test lead, clip on a 1N4004 diode, with the banded end away from the alligator lead. Touch the banded end of the diode to pin 1 of 1J8. Again, pin 1 is the right most pin, as facing the board.

Rows:
On the other end of the alligator test lead, clip on a 1N4004 diode, with the banded end towards the alligator lead. Touch the non-banded end of the diode to pin 1 of 1J10. Again, pin 1 is the right most pin, as facing the board.
The display should show switch 1 is closed.

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