LED display a board dark light how is it?
What is the board? P10 There are three reasons for that. 1, first check the power on the line to the board on the line whether the soup or not connected! (Change line), 2, check the board above the terminal. (That is, to the board of the black plastic wire, a screw fixed line) that is and the board with welding wire welding. There may be no welding good. You can remove the outside kit. (Next to a small screw, unscrew on the line) to get a welding torch from the welding. 3, the original board on the Weld it Need to return to the factory new. The You said the board made dark may also be because the outside of the package drums appear perspective reflection. LED normal viewing angle is 70-110 degrees, the hope of the answer can help you
Measure the power supply module voltage low, adjust the fine-tuning (power module close to the indicator light at the fine) to make the voltage to the standard.
With a multimeter to measure whether the normal voltage of the unit board, and then measure the power module voltage output is normal, if not, then determine the power module bad.
Visual power cable, unit board between the 26P cable and power module indicator light is normal. The following are the same as the "
