Sound board beep codes at power-on (pre-DCS)

Count the sound board's beeps at power-on. One: board passed. Two: bad RAM at U9. Three: bad ROM at U18. Four: bad ROM at U15. Five: bad ROM at U14.

Systems

• WPC Alpha-Numeric
• WPC Dot Matrix
• WPC Fliptronics

Related tips

• Pre-DCS sound board faults by symptom
• WPC sound board silent, no power-up bong: try the RAM first
• Sound board beep codes before DCS
• WPC sound board versions
• WPC-89 sound board layout
• The WPC sound board runs on its own
• Sound board RAM error at U9, wrong call-outs or no sound: replace the U9 RAM
• Random stray sounds in attract mode after changing the CPU board

Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part One, Clay Harrell (pinrepair.com)