No Sound El Dorado

A problem that I saw heard when working on the El Dorado pinball was none of the chimes were working.  I manually scored 10, 100, and 1000 points and nothing happened.

Troubleshooting steps that I took:

  1. I took a quick glance at the schematics and noticed there is one switch in the 10s score reel to make the chimes work.  I checked this switch and it was closing and contacts looked good when 10 points were scored.
  2. Check for continuity at the coil to the switch, and it was fine.
  3. Measured the ohms at the coil and got 12.2 ohms.
  4. Moved the plunger in the coil to see if it was moving freely, and this is when I noticed the problem.  The plunger was “glued” to the foam tape.  I took the unit apart, polished the plungers, and added new foam tape.
  5. Chimes are now working on 10, 100, and 1000 points!

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