| Additional application: | |||
|
Attention:The output voltage of the CCFL tester is up to 1500V.
In order to prevent electric shock,don’t touch any metal part which is connected with the output terminal.
1.Power on ,if the ammeter reading is under 20, the CCFL tester works great.Then power off.
Connect the CCFL tester with CCFL lamp interface sockets by extra-sharp probes.Then power on and begin to test.
If you want to test CCFL lamp without tube socket,you can connect the CCFL tester with CCFL lamp by crocodile clip.Power on and start to work.
(Attention:When the screen is not removed,the LCD screen should work normally,otherwize we don’t know whether the lamp is lit.)
2.CCFL lamp working principle:The CCFL lamp working principle is as below: Activated inert gases inde the tube by high voltage and maintain
continuous light at low voltage,which is same as energy-saving lamps and fluorescent lamps.
3.How to know the CCFL lamps’ problem:We can’t know whether there is something wrong with CCFL lamp only by multimeter
because there are inert gases inside the lamp tude.But with the help of CCFL tester,we can know the CCFL lamps’ problem clearly.
How can we know CCFL lamps’ problem with the help of CCFL tester?
a.Lamp rupture:
If the CCFL lamp reptures,the ammeter reading of CCFL tester is less than 200mA and no change.
b.Lamp ignition:
If there is a virtual connection of lamp lead or damage of rubber insulation layer at both ends of the CCFL lamp,
The ammeter reading will change continuously.Or when the lamp is lit, the ammeter reading will be same or similar to the normal lamp, but as time goes by,
The current will increase gradually and even can be up to 1 A.
c.Lamp aging:
Generally if the lamp is ageing,the working current will decrease.Then we can know the exact problem with the help of CCFL tester.In general,when we test CCFL lamp,
the CCFL tester ammeter reading is proportional to the length of CCFL lamp.When testing,the LCD panel lamp are in pairs.If one ammeter reading is different from three others,
then we know there is something wrong with this CCFL lamp,you just replace it.
When testing,don’t touch any metal part of the LCD panel, you will get a current value.Then touch any metal parts of the LCD panel, you will get a current value again.
The less difference between the two values, the better,which means that the insulation effect of the lamp is better.
If the difference between the two current values are more than 100mA,the lamp insulation layer is damaged or there is ignition point inside the lamp tube.
Attention:Without hand touch,the CCFL inverter working current will increase.When there is big deviation from the normal value,don’t touch any metal part of the LCD panel,
cause there will be a sense of electric shock.
Warrning:
High Voltage Output, Please do not tuch the output side. contact output side and make sure it safe. then turn on the power switch.
When not in use, please put it in a safe place, do not let the child close to it.
We only accept Paypal .
Payment is expected within 2 days from the end of the auction.
We send all the items are based on your paypal address.
Therefore, please make sure your paypal address is valid.
* International Buyers Please Note: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check your country’s custom office to determine whether these additional costs will be prior to bidding / buying.
Credit or debit card through PayPal
Delivery details
We ship this item to United States !
1. We ship to your eBay adress. Each package will be shipped to USA by USPS or Fedex/DHL with tracking number.
2. Please check your shipping address carefully before checkout, it can't be changed if order completed.
3. Ship within 3 business day once payment completed. Orders placed on weekend will be shipped within 2 days.
4. Seriously promise: Refund or resend will be offered if item still not arrive in 7-10 business days. Just send us an email ,we will give you a satisfied solution as soon as possible.
Terms of sales
It's highly appreciated you leave us positive feedback and 5 star rating comments if you are satisfied with our service!
andall
Your comment is very important in our business success.
If you are dissatisfied with item or have not received the items over 35 days(US 9 DAYS),please contact us for solution,we will try our best to solve it.We must give you a satisfactory solution.
Please feel free to contact us first before leave indifferent feedback or 1-3 star good feedback and open Case. we will try our best to solve your problem.Because we believe Anything can be resolved through communication.Thank you!
About us
If you send email to us,In our working hours will be resumed within 48 hours.
Please feel free to contact us if you have any questions:
Dear my friend,we appreciate your support.And our goal is service you well and give you a pleasant shopping time in our store.
(1)Not receive in time;
(2)Item broken;
(3)Not satisfied with the item...
we will try our best to handle it well within 24hours,
our working time is 8:00-12:00am,14:00-18:00pm(Beijing Time),
from Monday to Saturday,except International Holiday.
Contact us
We stand behind every product we sell. If you're not pleased with your purchase,
please kindly contact our customer service representatives via email,we will solve for you asap.
Buyer is responsible for return costs. Shipping and handling fees are not refundable.
We do not accept the returns repairing or checking by buyer’s side without our authorization