How to repair led flashing after turning on the light.P1.923 led screen modules

　　First, power supply problems

　　1. Check whether the power socket is firmly inserted. If it is firmly plugged in, unplug the power supply and wait a few minutes to try again.

　　2. Check whether the power cord is damaged or in poor contact. Pull out the power cord and check whether the wire is obviously worn or damaged. If yes, replace the power cord with a new one.

　　3. Check whether the power adapter works properly. You can use a multimeter to measure the output voltage and current of the adapter. If it is not within the standard range, you need to replace it with a new adapter.

　　Two, wiring problems

　　1. Check whether the wiring between the bulb and the power cord is firm. Open the lampshade, check whether the connector between the bulb and the power cord is loose, if loose, reinsert and fix;

　　2. Check whether the power cord is well connected to the bulb base. Tighten the screws at the joints to ensure good contact.

　　Three, LED lamp problem

　　1. Check whether the bulb is burned out. You can connect the light bulb to other power supplies for testing, if it does not flicker, you need to replace the new light bulb;

　　2. Check whether the light emitting diode of the bulb is normal. Observe the light part of the lamp in the dark to see if there is an obvious extinction point or damage, if there is, need to replace the new bulb.

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