Xenon

Note: This page is a work in progress. Please help get it to a completed state by adding any useful information to it.

1 Introduction

Project Date: May 13, 1980

Date Of Manufacture: February, 1981

Production: 10,000 units (confirmed)

Theme: Fictional Characters

Notable Features: Flippers (3), Pop bumpers (3), 4-bank drop targets (1), 3-bank drop targets (1), 3-in-line drop targets, Single drop target (1), Rollunder spinners (2), 2-way kick-out hole (1). Split-level playfield. Speech. High intensity strobe light in backbox visible through clear area in backglass (this feature was not present on all games, or was obscured in some games by silkscreening covering the strobe area).

2 Technical Info

MPU: Bally MPU AS-2518-35

Type: Solid State Electronic (SS)

Audio: volcalizer module AS-2518-58

3 Paperwork

Manuals, schematics, coin cards...

Manual and Schematics - Internet Pinball Database

4 Photos

5 References

XENON - Internet Pinball Database

6 Repair Logs

Did you do a repair? Log it here as a possible solution for others.

PROBLEM: Center pop bumper fires randomly during game play and test mode but NOT during attract mode

SOLUTION: Issue was resolved by replacing the ceramic disk .047 mfd 50 capacitor located on the leaf switch of the pop bumper.

PROBLEM: Left Flipper is very weak

SOLUTION: Issue was resolved by replacing the flipper coil with the correct coil for starters. #AQ-25-500_34-45, Then adjusting and cleaning the End Of Stroke(EOS) leaf switch resolved the issue totally.

PROBLEM: Start button is not working

SOLUTION: Traced start button wire back to MPU board location. Found the .100 Trifurcon Terminal Pin to be mangled. Removed the .100 Trifurcon Terminal Pin from molox connector and replaced. Reinserted back into molox connector and start button now works.

PROBLEM: Certain words are garbled or missing

SOLUTION: Determine which sound ROM is causing the problem. Clean the ROM legs. If that doesn't work, replace the socket(s). If the problem still exists, one or more of the sound ROMS are bad or the data has become damaged. The original ROMs can be replaced with standard 2732 EPROMs, ans long as the jumpers below the ROM being replaced have jumpers only in the "A" and "C" positions. Additional info here: https://pinside.com/pinball/forum/topic/xenon-vocalizer-eprom-repair-vids-guide