2.5 Connect P3 to the Signal Generator (eg.Chroma2326) for verifying it after the
operation being completed.
2.6 Connect PC to the additional monitor.
3 Firmware Upgrade Procedure
Step 1. Let VA503/VA703/VA903 set to be connected with AC cable and VGA cable.
Step 2.Execute the MSstar ISP tool.
Step 3. Click “Config” button . Select the Port Type: LPT1 and the Base Addr : 0x378
on “Communication Setting” flame, and then the Speed: 47 on “E2PROM Device
Setting” flame
P2:to LPT Cable
JP1