How to solve the partial black screen problem

Scenario-based maintenance of LED display screens (when a display screen fails, it is necessary to eliminate various possibilities according to different fault phenomena, and finally determine the final cause of the failure and repair it)

[@tofikizelililanian2765]

EXCELLENT WORK. PERFECT EXPLANATION THANK YOU

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Sou técnico em placas de led
A empresa que trabalho amanhã a dicolo
A empresa e LP PRODUÇÕES
DO BRASIL SERGIPE ARACAJU
SOU DIEGO