led light controller broken how to fix?

It depends on how it's broken. For example:

One, lack of color: can be remote control, press the remote control RGB key, one of the colors is not bright?

Detection process:

1. See whether the patch components and processing are defective.​

2. Determine whether the output line is bad, the controller state of electric remote key machine according to the first, in connection with forceps MOS tube feet 1 and 2 feet road to connect 3 MOS tube respectively, will see a three-way tweezers connection article lamp will be bright, if on the output line is good, I will, if the tweezers you have have a bad connection, bad way out of the way the output of the corresponding line, You can use a multimeter to measure both ends of the output line in ohms.

There is a sound for the pass, no sound for the pass.

3. Determine whether the MOS tube is bad: if the controller is not plugged in the power supply, use the multimeter to measure the diode file, and the multimeter will exchange the position of the pen to measure, and see the value of the MOS tube displayed in the multimeter.

With the value of good products to reference, the value can not differ more than dozens of.

4. Check whether the line associated with the MOS is normal and whether there is a short circuit or open circuit.

5. Determine whether the program IC is bad, and use the elimination method to better the new program IC.

Two, long bright, remote control press the shutdown button, light color tube, color has been bright?

Detection process:

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1. Look at MOS, program IC there is no patch fake welding.

Troubleshoot patch issues.

After welding whether the MOS tube, IC and tin problems.

2. Determine whether the MOS tube is bad, use a multimeter diode file, test the value of the MOS tube pin.

3. Check whether the line connected to the MOS tube is open or short circuit.

4 Determine the program IC, whether bad.

Use the exclusion method to better the new program IC, here it is recommended to use sp201e led controller.

Three, can not open the machine, plug in the power, the light bar does not light?

Detection process:

1. Check whether the circuit board patch element is wrong or false welded.

There is no solder wrong line with tin after welding.

2. Press R, G, B on the remote control first.

Check whether the light bar is on, and press the remote control power button to rule out whether it is considered shut down.

3. Determine whether the lower output line is bad, and clamp pins 1 and 2 of the MOS tube with tweezers.

Three-way light indicates that the output line is good, and the three-way light line is bad.

4. Use a multimeter to test whether the voltage of the 5V regulator tube is 5V.

If the multimeter has 5.1V, the regulator tube is normal.

At the same time, the program IC is tested, and there is no 5V voltage at the positive and negative terminals. It is indicated that the power supply to the IC is normal, so replace the program IC to eliminate the problem.

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