No more guess works! This custom built LCD Screen Tester can help you isolate
problem between CCFL Backlight Lamp and Inverter in seconds. It also comes with
a new 12V AC Power adapter. Must have it tool for people who offer Laptop
computer repair service. Save Time! Save money!
Please Click here to buy
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Although LST01 is custom build for Laptop screen repair,
it also can test other type of LCD screens. Please click here for detail procedures.
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Self Test:
Before you use LST01. Please perform the following test:
Step 1: Connect Inverter Tester male to CCFL Tester female.
Step 2: Connect 12V DC Power adapter to LST01.
Step 3: Turn on power switch. Both Indicate light should be lit (Red LED and CCFL) |
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Testing your Laptop screen CCFL (Back light Lamp)
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Step 1:
Connect CCFL Tester (female Connector) to your Laptop Screen CCFL connector.
Connect Grounding wire clip to any metal part on Laptop screen assembly. |
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Step 2: Connect 12V DC adapter to LST01
Step 3: Turn on power switch.
If the Laptop screen is still dim and dark(Same sypmtom as before). Then your
need a new repalcement CCFL. Please click here
to find your new replacement CCFL.
If the Laptop screen lights up, then your CCFL back light is working fine (You
could also confirm by turning on the laptop computer, you should see all
contents on the screen). Then the problem may cause by the defective inverter. |
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Testing your Laptop screen Inverter: |
To test your laptop inverter. you do not need connect 12V DC adapter to LST01
and also you do not need to turn on the power switch. either. Please following
the below procedures:
Step 1: Connect Inverter tester connector to Laptop inverter
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Step 2: Turn on your Laptop computer.
If CCFL lights up (In side LST01, as shown picture below), then the Laptop
inverter is working.
If CCFL does not light (In side LST01, as shown picture below). Then your need a repalcement
inverter. Please click here
to find your replacement inverter. |
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Note:
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In a rare case, If CCFL does not light (In side LST01, as shown picture
above). the problem may cuase by the following components:
- Defective toggle switch
- Bad inverter cable
- Missing enable vlotage from motherboard's video chip
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How to test CCFL on other type of LCD Screen.
Click here
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