The neon lamp on the ramp is dark.
Cirqus Voltaire neon tube doesn't light
Cause: No 12 V reaching the neon transformer (blown fuse), a damaged tube, or most often a failed transformer. The transformer turns 12 V DC into about 1500 V at low current.
Checks
- Measure 12 V where it enters the transformer's Molex plug under the playfield, or at its source on the power driver board.
- The transformer case is riveted shut; drill the rivets out with a 1/8 inch bit or grind off their heads. On Star Wars Episode I don't try to remove the glued-on light sabre handle from the case.
- Check for about 1500 V output only with a meter rated for it; otherwise just replace the transformer.
- A neon tube can't be tested with a meter; use an inductive neon tester held near it.
Fix
- Fit a replacement 12 V DC neon transformer (original spec: 12 V DC in at up to 650 mA, 1500 V out at about 5 to 10 mA). A car licence plate neon transformer also works, mounted under the playfield if needed, with wire rated for at least 2000 V.
- Fit a Molex connector to the new transformer's output if needed, test with clip leads before reassembly, and close the case with small screws if you can't re-rivet it.
The neon transformer produces about 1500 V. Keep clear of the output and insulate every connection before powering up.
Systems
Games
Related tips
Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part Three, Clay Harrell (pinrepair.com)