Common Repair Tools and Repair Methods for LED Modules

A comprehensive guide to the repair of LED modules, including the introduction and usage instructions of a series of maintenance tools. The document also specifically emphasizes the usage method of the flexible printed circuit board (FPC), and how to carry out the copper foil transplantation to repair the falling off copper foil, including the detailed steps of signal direction identification, cutting, cleaning, welding and testing. And so on.

Common Repair Tools for LED Repair:

Common Repair Tool – Soldering Station and Accessories
Model: HAKKO 937;
Soldering Station and Accessories
Chisel Soldering Iron Tip
Chisel Soldering Iron Tip
Pointed Soldering Iron Tip
Pointed Soldering Iron Tip
High-temperature Sponge
High-temperature Sponge
Common Repair Tool – Hot Air Gun
Hot Air Gun
Hot Air Gun
Common Repair Tool – Portable Hot Air Gun
Portable Hot Air Gun
Portable Hot Air Gun
Common Repair Tool – Solder Wire
Solder Wire
Solder Wire
Common Repair Tool – lead-free solder paste
lead-free solder paste
lead-free solder paste
Common Repair Tool – Flexible Circuit Board
Flexible Circuit Board
Flexible Circuit Board

Copper foil grafting:

Copper foil grafting—The function of copper foil
The function of copper foil
The function of copper foil
Copper Foil Grafting – Signal Direction of the Lamp Board
Signal Direction of the Lamp Board
Signal Direction of the Lamp Board
Copper Foil Grafting – Cutting
Cutting
Cutting
Copper Foil Grafting – Cleaning Lamp Tube Copper Foil
Cleaning Lamp Tube Copper Foil
Cleaning Lamp Tube Copper Foil
Copper Foil Grafting – Copper Foil Soldering
Copper Foil Grafting – Testing
Testing
Testing
Copper Foil Grafting – Lamp Tube Soldering
Lamp Tube Soldering
Lamp Tube Soldering
Copper Foil Grafting – Lamp Tube Soldering
Lamp Tube Soldering
Lamp Tube Soldering

Replacement Lamp Bead Precautions:

Figure 1
Figure 1
Figure 2
Figure 2
Figure 3
Figure 3

Adding Copper Foil Precautions:

Figure 1
Figure 1
Figure 2
Figure 2
Figure 3
Figure 3

Driver IC Replacement:

Driver IC Replacement:
Driver IC Replacement:

Single module presents the following fault phenomena:

Missing green
Missing green
Missing red
Missing red
Missing blue
Missing blue

Common fault phenomena:

Common fault phenomena:
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