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A. LED screen is not working and green light on sending card is flickering

Recently, Gaoke Huaye Group has earned an overseas trademark in the EU, Russia, Uzbekistan, Kazakhstan, and Vietnam.

GKGD’s R&D team has developed a market-leading fine-pitch LED display with a pixel pitch of 0.833mm, the finest in LED display industry.

In order to adapt to the new channel development in the changing business environment and to establish a broader and suitable sales channel,

When speaking of maintenance of LED screens, we usually refer to the front and rear maintenance method.
Front Maintenance
One distinctive character of front maintenance is its being space-saving. For most indoor LED displays and inlaying-installed LED displays, saving space means everything. And front maintenance type screen has an ultra slim structure. This type of display usually has very high requirement in heat dissipation ability.
Rear Maintenance
LED displays produced are usually designed with back doors. That's what we called rear maintenance type. Rear maintenance is convenient to outdoor spectaculars and some other installations. Usually there will be a back-end passage for technicians to check and fix the LED display.