, outdoor full color screen is unavoidable in the process of using a series of bright line, what reason be cause?
How should check out the problem?
Read the following content you will understand!
In the process of using the 'bright line' reasons: 1, product quality closes nevertheless, do not covet is cheap to buy when buy low price low quality products.
2, voltage instability, resulting in leakage phenomenon.
3, improper operation method, by human operation error, influence the effect of the screen.
In the process of using the 'bright line' failure problem of how to check out?
First, determine the power if there is any damage, still can normal use.
Because of a power unit controls a few board at the same time.
Whether can measure the output voltage in 4.
9 to 5.
Between 5 v.
Is beyond the scope of the word, is likely to be the power supply is broken.
Second, check the control card is normal use.
Turn on the power supply first, look at the control card whether indicating light;
If not bright, inspect whether there is 5 v voltage power supply, LED electronic screen can display content, if we can display content, control card display function is good;
Then search control card with control card software, if we can find the words, explain the function of the control card to send content good;
If not find, have to check the communication lines connected, if ok, it is likely to be card is out of question.
As long as the two function is good, the control card is ok, otherwise will replace the control card.
Third, check the unit board is good.
LED display of the signal from one plate to another board input.
So there is a plate out of the question, will affect the back of the plate.
So one by one to check whether the unit board is normal.
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