Is your back light dim? Does it start up with a red tint? Does the back light eventually just give out OR do you hear a high pitch hum sound coming from your screen? Well, here's part two of the laptop disassembly and repair. We're now moving away from exploratory surgery and into healthy repair.
WarningCCFL Tubes are small fluorescent bulbs. As such, they contain mercury. It is also likely that they are made with lead glass, which is very brittle and has a low melting point. Avoid shock and unnecessary stresses on the bulb including prolonged periods of high heat (soldering iron). Do not twist or bend your bulb and do not wrap wire around it.
Step 1: Parts and Supplies
You'll need everything you needed from part 1 to disassembly your machine. But you'll need the following too:
1. Replacement Bulb
2. High Temp Foil Tape (EMF Shielding)
3. Soldering Iron
4. Solder Wick
5. Wire Cutters
Step 3: Desolder Old Bulb
Pull back the silicone end covers to expose the old CCFL's solder joints. Desolder using solder wick and remove the wire. My wire happened to have a nice through hole end.
Step 4: Solder New Bulb
If your old bulb had plastic rings on it, like mine, be sure to transfer those over to the new bulb. Then, solder on the bulb's wires. Do not apply heat for more than 4 seconds. Additionally, place the wire at the base of the connection. These bulbs are not directional - so there is no "+" and "-" side ;)
Step 5: Trim Bulb
My bulb came with long leads - trim these with wire cutters. Then, replace the silicone end caps.
Step 6: Place Bulb into reflector assembly
Place the new bulb into the reflector assembly just as the old bulb was (in my case, wires pointing "up").