Chapter 5 Jumper Settings and Connectors 535.6 VGA InterfaceThe panel PC's AGP VGA interface can drive conventional CRTdisplays. It is also capable of driving a wide range of flat paneldisplays, including electroluminescent (EL), gas plasma, passive LCDand active LCD displays. The board has two connectors to supportthese displays simultaneously: one for standard CRT VGA monitors,and one for flat panel displays.CRT display port information can be found in Section 3.9 this manual.Pin assignments for the flat panel display connector, backlightconnector and other related connectors are shown in Appendix D.5.6.1 LCD panel power settingThe panel PC's AGP SVGA interface supports 5 V and 3.3 V LCDdisplays. The LCD cable already has a built-in default setting. You donot need to adjust any jumper or switch to select the panel power.5.6.2 Panel type select (SW1)SW1 is a 4-pin dip switch for selecting panel type and display mode.A 800 x 600 TFT LCD is used in the PPC-123, so the switch is presetaccording to the table below. The switch is already defaulted for thePPC-123's LCD, so it should not be modified. If you require modifica-tion for a special purpose, we recommend that you consult yourdistributor or our sales repreentative for detailed information.Table 5-10: Panel type select (SW1)Panel type Pin 1 Pin 2 Pin 3 Pin 4TFT 800 x 600 ON OFF ON ON
