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Now you can test LED Backligh on LED (Laptop) screen with
MS438EXT |
By analyst the 2nd generation of LST01 and the feedback from our customers, we had improved the following area of design:
- Able to test LED backlight on LED (Laptop) Screen
- Striking voltages
- Lamp Current Feedback Sense Input
- Open Lamp detect (Lamp Voltage Feedback)
MS438EXT is $22.99 ($3 shipping). To purchase it, please click here
To mail in your V1 & V2 LST01 for up grade, please read the instruction at the bottom of the page.
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To Purchase LST01 ($119.99), Please click BuyNow Button.
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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.
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The defective CCFL back light lamp usually had the following symptoms:*
- CCFL lamp flash on and goes off immediately
- CCFL lamp lights up in reddish or pinkish and goes off immediately
- CCFL lamp lights up in reddish or pinkish and gradually become normal
*The defective CCFL back light lamp usually has three possibilities or results when you turn on LST01
*In a rare case, you may had to let LST01 run for more then 10 minutes to see the problems
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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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Free Upgrade:
If you purchased LST01
between Jan 1, 2011 to May 14, 2011. you can mail it back for free upgrade.
There is no need to contact us for return RMA, please use your order number as a return RMA number
and mail it back to:
MoniServ, Inc
Attn: Free Upgrade
1600 Noriega Street
San Francisco CA 94122
It usually takes about 4 days and we will ship it back to you free of charge
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$15 fee for Upgrade:
If you purchased LST01 in 2010 or before, you can mail it back for upgrade.
There is a $15 charge for domestic customer and $20 for international customers.
We will contact oyu for the payment when it is completed.
There is no need to contact us for return RMA, please use your order number as a return RMA number
and mail it back to:
MoniServ, Inc
Attn: Free Upgrade
1600 Noriega Street
San Francisco CA 94122
It usually takes about 4 days and we will ship it back to you free of charge
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Note: If you want to purhcase MS438EXT at the time we are upgrading your LST01,
please let us know. MS438EXT is $22.99. No additionla shipping fee will be add
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