7
4. ADJUSTMENT OF BOARDS
Equipment is connected with boards to be inspected before adjustments. Refer to diagram
below.
A. Connection Method
1. R.G.B Signal Cable
2. DC Power Cable
3. Inverter Cable
4. Control Cable
5. LCD Lamp Cable
5. VL-531 DISPLAY CONTROL BOARD
A. Description
The VL-531 display control board is design to directly convert the R.G.B signals from VGA
Card D-sub port to optimum LCD timing signals so as to construct a high display quality LCD
monitor.
B. Features
•
On board sage chip to detect display timings and control user functions.
•
Using sage chip to convert R.G.B signals to digital timing
•
Using sage chip to offer full screen expansion function on non-XGA mode(Auto-Zoom).
•
Support VESA DPMS function.
•
Support DDC2B functions.
Summary of Contents for AL501
Page 23: ...23 10 TROUBLESHOOTING A Main Procedure ...
Page 24: ...24 A 1 Power Circuit Troubleshooting ...
Page 25: ...25 A 2 Backlights Troubleshooting ...
Page 26: ...26 A 3 Performance Troubleshooting ...
Page 27: ...27 A 4 Function Troubleshooting ...
Page 28: ...28 APPENDIX A PARTS LISTS ...
Page 29: ...29 A FRU BOM A 1 453A5730021 PCBA Inverter board A 2 454A6930011 PCBA Key Board ...