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How to judge LCD DID connection screen failure?

TIME:2016-4-15 14:04:06  PV:1092

LCD DID connection screen failure diagnosis flow chart Failure phenomenon table failure cause and elimination


LCD DID connection screen failure diagnosis flow chart Failure phenomenon table Failure cause and elimination Optical change) Pre-existing signal processing equipment such as processor/rectifier Signal source failure No power supply system or control system power supply failure or control system failure LED light status on the screen display board STB indicator light (low power supply) 1. 2. Check power supply correct/not normal change power supply 2. Check if the power line is connected to the city or not. Check whether the power board inside the PDP is correct or not.Replace the power board normally4. Check the IP board is correct or not, change the IP board or not Check 232 connection line, ID number change line 2322. 1. No. 4 orange indicator light for MSCS license number 1. The number of screens for MSCS records and the order of the screens for X Y are incorrect. Newly installed MSCS equipment 2. The RS232 line is connected to own LCD. 232 lines can't be switched off, and MSCS can't be opened. Related MSCS issues 1. RS232 line connection between the control cable and the large screen. 重新接插232线·1.The COM port of the MSCS in the MSCS is the corresponding COM port and the connecting port. When moving MSCS, there is a color mismatch between the displayed image and the color of the screen displayed. Modified VGA line 2. 1. Passing through the MSCS file, the brightness ratio of the block screen is not the same. Grasp brightness and contrast heavy new color screen Y board screen change Y board screen screen corners with black spots Screen externally detected, LCD screen screen changed LCD screen single block screen unopenable, LCD screen unopenable 5 minutes after the power is cut off, etc., resend the power, the image is not re-started, and the image is not found due to failure, please refer to the corresponding MSCS and image processing device description for details.

 

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