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This section is dedicated to the repair, preservation, restoration and maintenance of Valley's [1].

1 Valley's Spectra IV

1.1 Introduction

This section is dedicated to the repair, preservation, restoration and maintenance of Valley's Spectra IV.

1.2 General Information

1.2.1 Value

1.2.2 History

1.3 Technical Information

1.4 Problems and Solutions

1.4.1 Summary of Issues

1.4.2 Getting your board to boot

1.4.2.1 Main Board

1.4.2.2 Motor Driver Board

1.4.3 Reset Circuit

1.4.4 Power Supply

1.4.5 Re-Pinning

1.4.6 Errata

1.4.7 Substitute Parts

1.4.8 First Time Power-Up

1.4.9 Troubleshooting (Electronic)

1.4.10 Troubleshooting (Mechanical)

1.4.11 Calibrating the Rotating Playfield

1.5 Repair Support

1.5.1 New Integrated Logic Board

1.5.2 New Display Boards

1.6 References

1.6.1 Boot and Attract Mode

1.6.2 Service Positions (first from SE then NW Coin Doors)

Valley Spectra IV

Contents