Half / some part of screen is blank OR some part of screen is flickering

            Step 1: Check if power is received at the cabinet from which screen is blank. If it is connected with power loop & power is not received, check if it has got burnt / damaged & change it using spare power loop cable if any. If it is powered with main power from Electrical Distribution Box, check if its respective MCB is tripped. If not, call clients electrician / vendor to resolve the power issue.

            Step 2: If power is received at the cabinet from which screen is blank then check if power is received on the receiver card of that cabinet (Red light must be ON & stable).  If not, check the SMPS from which receiver card is receiving power is ON or not. If NO, then change that SMPS.

            Step 3: If Red light on receiver card is ON, then check if data is received at receiver card (Green light must be ON & blinking). If not, then move to step 4

            Step 4: Check the continuity of data loop cable (cat6 from receiver card of working cabinet to receiver card of cabinet from which screen is blank). If found faulty, change it.

            Step 5: If SMPS is working fine, data loop cable is working fine and still the display of that cabinet is blank, bypass that cabinet with data loop & check if data is received at other cabinet. If received, change the receiver card of cabinet from which data was blank initially & reprogram the screen.
            Updated: 25 Jul 2018 01:51 AM
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