How to Use the panel tool as Below: 1. Please make sure your Panel Resoultion ,Power for the Panel and Backlight that you need to Test. such as LTN170X2-L02 we Need to Know the Resolution 1440x900 6bits ,30pin Double LVDS cable and the power is 3.3V supply 2. Connect the Power to the Panel tester ,the power input is 12V-3A or 12V-5A DC port 2.5MM and 5.5MM inner + outside - 3. Press S1 or S2 set The resolution ,such as the 1440*900 ,you need to set the display on 36 4. Choose the Panel supply Voltage ,press the Auto for 5 seconds .if you panel is 3.3V then you not need to Choose 5. Connect the LVDS cable and the Backlight Line. Press the power ,then the LED Light. Press the Up or Down test the Panel .After test finished,Power off<br><br>Detailed information about the LVDS cables: DF14-20Pin-Single8 DF14-20Pin-Single6 FIX-30Pin-Single8 (power on left) bit FIX-30Pin-Single8 (power on right) bit FIX-30Pin-Double6 (power on left) bit FIX-30Pin-Double8 (power on left) bit FIX-51Pin-Double8 (power on left) bit (Most universal LVDS cable for 32-65inch screen) FIX-51Pin-Double8 (power on right) bit (Most universal LVDS cable for 32-65inch screen) FIX-30Pin-Double8 (power on left) bit (for 17-42inch screen) FIX-30Pin-Double8 (power on right) bit (for 17-42inch screen) FPC-LVDS-30Pin-Single8 (power on left) bit FPC-LVDS-30Pin-Single8 (power on right) bit LP-40Pin-Double6(LED laptop HD) LP-40Pin-Single6(LED laptop SD) Totally 14 pcs LVDS/FPC cables for 12-65inch laptop/TV screen Colour:As Shown Material:PC+Metal<br><br>Package Contents: 1 * Screen Tester Kit<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.