32
4.5 Switch definition
Location Definition
S1, S2
Power ON/OFF
S3
Auto Adjusting and Input Mode selection
S5
Function selection Enable
S6
Function select and Adjust UP
S4
Function select and Adjust Down
4.6 LED definition
Location Definition
D5
Blue for ON mode; Yellow for OFF mode; yellow for Power Saving
mode; Dark for DC power OFF mode.
Summary of Contents for AL1931
Page 27: ...26 3 3 BLOCK DIAGRAM ...
Page 34: ...33 5 TROUBLESHOOTING 5 1 Main Procedure ...
Page 35: ...34 5 1 1 Power Circuit Troubleshooting ...
Page 36: ...35 5 1 2 Backlights Troubleshooting ...
Page 37: ...36 5 1 3 Performance Troubleshooting ...
Page 38: ...37 5 1 4 Function Troubleshooting ...
Page 44: ...43 WAVESHAPE ...
Page 50: ...49 APPENDIX A PARTS LISTS ...
Page 51: ...50 A FRU Board A 1 454AA030001 PCBA Key Board VK 903 ...
Page 52: ...51 A 2 461AA030001 Firmware CTRL Board VL 903 ...
Page 53: ...52 A 3 455AA030001 PCBA D D INV Board Vp 903 ...
Page 54: ...53 Appendix B DISPLAY Assembly ...
Page 55: ...54 ...
Page 58: ...57 ...
Page 60: ...60 Appendix C PCBA Assembly ...
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