Self Guide Repair For LED Panel Light with a Dead Group of Leds

Self Guide Repair For LED Panel Light with a Dead Group of Leds

Self Guide Repair For LED Panel Light with A Dead Group of LEDSLighting Source:SMD LED3014

Defect signs:Dark zones on the LED panel light when powered on

Precautions:
1.Please prepare a 2.5mx2.5m Square working platform and ensure that you clear it of any dust.

2.Cushion the work platform to protect the panels being serviced from any sudden scratches.

3.Have enough light in your service room.

4.Ensure that the works are done by a technical person who has prior knowledge of disassembling and reassembling electrical fittings.

Tools:
1.Pair of pliers. (Pair of pliers. (AA))  ((JJ))
2.Electrical star type screw driver. (B)
3.Electrical insulation tape. (C)
4.Wire stripper. (D)
5.Wire cutter. (E)
6.Cutter (F)
7.Soldering Iron (G)
8.Solder Wire (H)
9.Tweezers (I)
10.Electric Blower (J) (H) 

All the above can be bought in your nearest local electrical hardware shop

Construction of LED panel Light:
1.Aluminum frame.
2.Diffuser.
3.LGP
4.Cushioning ( Foam protection)
5.Aluminium back plate.

Instructions for repair guide. 1

Use a removable marker and mark out the side with the defective group of leds.

Gently sit the panel light on the clean, dust free, cushioned work platform already set out. Front face down.

Using your magnetic head star screw driver, gently remove all the back screws securing the back aluminum plate to the main frame. (A)

With all the back screws removed, gently rotate the aluminum back cover, please do not lift off the aluminum cover

please do not lift off the aluminum cover. ((BB))

At the point where the cable runs into the panel, gently lift the aluminum back plate and slowly unplug the rubber bush that secures the cable to the aluminum back plate. Then sit the aluminum back plate on a clean surface. (C)

Instructions for repair guide.2

With the panel open, you will notice a backing foam material, gently lift this off and rest it on the aluminum back plate. •With your pair of tweezers placed at one corner of the panel, gently lift out the LGP, and at an appropriate height, you may lift it with your hands and rest it on a clean surface. (B,C) A  C Foam backing

Instructions for repair guide. 3
After removing the LGP, proceed and remove the diffuser.

With maximum care, gently give the diffuser a soft push from the front face pushing it back. Please note that you have to start at one corner of the panel and work your way down be gentle otherwise the diffuser will be cracked. (B,C)

Direction of the gentle force to lift off the
diffuser

Instructions for repair guide. 4 Make sure you do not scratch the surface of the diffuser.

After removing the diffuser, rest it on a clean dust free surface. (A,B)

Instructions for repair guide. 5At the side marked previously with the dead leds, carefully separately strip from the frame using the cutter.(A,B,C)

Instructions for repair guide. 6 •After removing the defective faulty led strip, un solder it from the power cable.
(A) •Proceed and remove any residue glue that was left of the aluminum frame after removing the defective strip. (B,C)

Instructions for repair guide. 7
With the new supplied led strip, solder weld the power cable to the end of the strip, ensure that the polarity is right, red cable to the positive terminal and the black cable to the negative terminal. (A)
Ensure that the solder joint is sound and secure, to check this, gently pull on the cables after soldering them to ensure that they are securely welded. (B,C)  Instructions for repair guide. 8 After soldering the cables in the right order, place the led strip back in the same position as the defective strip. (A)
Peel off the back paper from the new led strip such that the glue on the back of the strip can help bond it to the aluminum frame. (B,C) 

 Instructions for repair guide. 9Gently place the diffuser back in place, sit one end of the diffuser on the aluminum frame and then proceed and fix the respective opposite side. (A)
With the diffuser fitted, carefully power the panel to ensure that all the leds are powered and give off light. Proceed and clean the diffuser with a dust roller or, use the electric blower to air/ blow out any dirt on the diffuser. Please ensure that the diffuser is 100% dirt free. (B,C)
Instructions for repair guide. 10Proceed and place the LGP back in position, please take maximum care not to damage the leds on the strips. (A, B)
After fitting the LGP in the right position and placing back the white PC reflector, now carefully run the cables to the side , between the LGP and the aluminum frame. (C)

Instructions for repair guide. 11
Place back the foam backing. (A)
Slide back the cable rubber bush in the same position on the aluminum back plate, then proceed and secure the aluminum back plate to the panel by use of the screws. Ensure that the back plate is tightly fitted to avoid any dust from penetrating into the panel. (B,C)

Instructions for repair.12Power the panel and all should be well now.