Description

12V Driver Board Replacement for NEJE A40640/N40630 Laser Module Driver Board Repair Kits

Packing List：

Driver Board(Main driver board + Switch Board) x 1

12V soldering iron x 1

500mm solder x 1

Flux x 1

NOTE:

 

When operating the soldering iron, please pay attention to the high temperature and don’t hurt yourself

High temperature of the soldering iron may damage the control board. Please ensure that the soldering iron does not heat the control board for more than 3 seconds

 

How to change control board for laser module?

First, disassemble your laser drive and heat up your iron(may take 3 minutes)

Add enough solder to make all 4 pins have solder, as shown in the figure below:

Heat the four pointsat the same time, and gently lift the control board with your left hand. If the method is correct, you can quickly separate the drive board and the main body(If you find it difficult to remove, try applying some flux to the soldering area)

When you successfully remove the driver board, a lot of solder may remain on the pins. You need to clean them.

How to clean the pins?

Step 1: Apply the flux to pins (Click on image to enlarge image)

Step 2: Tilt your laser module down, touch the soldering iron to the pins(make sure your iron is clean, clean it with napkin)

Put on new control board: