Instruction:

1, Confirm input and output wire are connected correctly then power on. Switch input input signal source(RGBS/YPBPR/RGBHV) by "SW" button, and you will see the game picture when switch to the right channel.
2, When it is RGBS (CGA, EGA) input, please click AUTO/DOWN button and the system will automatically scan signals, automatically adjust the frequency.At the same time, power indicator light flashes, then stop flashing after it have finished scanning.
3, If the picture is not displayed at full screen, first adjust position -> "horizontal position", adjust to the left edge by add(UP) or minus(DOWN) "horizontal position".

Then adjust position -> "horizontal size", adjust to the right edge by add(UP) or minus(DOWN) "horizontal size".

Then adjust position -> "vertical position", adjust to the top edge by add(UP) or minus(DOWN) "vertical position".

Then adjust position -> "vertical size", adjust to the bottom edge by add(UP) or minus(DOWN) "vertical size".
If the picture was adjusted over the screen edge, press and hold "AUTO/DOWN" button for 5 seconds to restore system default.
Note:If it is not full screen yet after adjustment, the display setting need be adjusted. For LCD display, set is as AUTO. 
For CRT or rear projection displays, please adjust displaying size.Each display has a optimum resolution. 
If the board output resolution is set as the optimum resolution of display, it will be more clear.