LED Lamp Bead and Backlight no Need Disemble LCD Screen All LED Strs Lights Repair Test Output 0-300V

TKDMR LED Lamp Bead and Backlight no Need Disaemble LCD Screen All LED Strs Lights Repair Test Output 0-300V

Send 20pcs lamp beads randomly.

We are the only manufacturer. Please identify our brand. If you find something wrong, or someone else uses our brand. please contact us!! thank you!

PLEASE NOTE: THE INPUT VOLTAGE VOLTAGE IS:85-265V INTERNATIONAL GENERAL

SO IT CAN ALSO BE 110V-220V!!

1.Overview

TD2B LED TV Backlight is a light source power supply that consist ofisolating switch power supply , constants-current circuit , current control circuit and LED digital voltage display system .

2.Characteristics

1) Voltage Output: 0-300VDC ( TD2B )

2) Current Output: 0.15mA (starting curren)0-30mA ( TD2B )

3) Voltage Input: 85V-245V AC 50/60HZ

4) PowerInput:＜20VA

5) Temperature:20-40℃

3. Instructions

1) Plug the power supply,Voltage shows around 156V(TD2B)and rising to around 300V(TD2B) after few seconds.

2)When testing,use the red and black pen totouch the anode and cathode of the LED ight respectively.The light will automatically change from slight brightne to high lightne gradually(3-5s) and then stabilize.The voltage display is the operating voltage of the light at that time

4.Test method without disaembling the screen

To lighting the screen must meet at least three requirements:A.backlight is on,B.power supply to the screen,C.signal supply to the screen.Otherwise,we cannot see the light from the screen or it is very dark.

(1)Unplug the interface sockets of the constant current plate and light bar.

(2)Insert the Red and Black pens of the into the anode and cathode of the interface of the LED light bar.

(3)Turn on the TV power supply and power the TV up normally(except for the constant current plate),at this time,if the light bar,LCD,main board and logic board all work normally,normal images can be seen from the screen.The brightne may be lower than the normal brightne of the TV set.The output current of the shall adapt to the LED backlight bars of all sizes of TV sets,thus the brightne is relatively lower compared to the one -to-one constant current plate of the TV set,which is a normal phenomenon.

5.Testing Ts

1) For the TV has more than one groups of backlight,compare the voltages of each group,if the voltage difference more than 3V or 3%,it means the light bar has some probl.

2) For the TV only has one groups of backlight,it can also be compared with the good light bar of the same model,judging whether the light bar is good or not by comparing the voltage.

3) Testing the steady voltage value of the stabilivolt tube:connect the red pen with the cathode of the diode and the black pen with the anode,the voltage value displayed in the is the steady voltage value of the stabilivolt tube.(the voltage error is normal within 5%)Control the testing time within 3S to avoid the severe heating of the stabilivolt tube of above 20v.

4) The voltage display should be around 300V(TD2B)in open circuit,if the voltage display not change when testing,it means the LED we test is in open circuit or the probes in poor contact.

5)When testing,the voltage displayed =00.0, indicating that the tested light bar or the lamp bead short-circuits,It also will display 00.0V when touch the two probes each other.

6)When testing the single LED beads,the voltage display lower than 2V and the LED beads not working,the electric leakage of the LED beads may exist.

7)When testing two subjects without electrical connection,if the voltage displayed is lower than the open circuit voltage,it indicates that there is electric leakage between the two subjects tested.

WARRANTY

1. This product is guaranteed up to one year from purchase,power cord and probe can be replaced In one month.

2. If there are some performance probl,simply return it in its condition within 30 days of receiving it.In the warranty period,we will repair and sh you an good .

3.The warranty period will be extended for three months after we repair the bad products.

4. Postage fee p by buyer.

5. Please note that the guarantee policy does not apply to.

1)Products has man-made damage or accidental damage such as exceive voltage applied to the input,high temperature,water damage drop and break,mechanical damage and corrosion.

2)Destroy the label of the products.

3)The warranty period or maintenance period has expired.

If you need to customize the product, we can also meet your requirements.

The customer has made the 12V DC input, and also has the 50VDC output.

Please contact us .We can ODM/OEM if you need.

PACKAGE INCLUDE:

1x

1x 20A probe

1x Power line

HT02

Product descrtion Name: LED Remover PTC Heating Ch Remove Welding Station Split Plate Specifications: Color: Sier Power: 300W Input Voltage: 110/220V, Material: Aluminum + PTC Size: (L)X(W) 120x70mm / 4.72''x2.76''(appr.) Features: ● Automatic constant temperature. ● High performance and high power. ● Can also be used for BGA solder ball. ● Can be used to disaemble the LED light bead and FPC board. ● PTC heating plate and heat diating aluminum sheet construction. ● 30 seconds will be reach about 250℃ (±10℃) ≈482℉.No thermostat needed. Package Included: 1 x LED Remover Split Plate 1 x Power line 4 x High Temperature Resistant Silica Pad

Order descrtion Shping: 1.We guarantee to sh goods out within 24-72 hour after payment confirmation except holiday. 2.We sh by China post,HKpost ,,,according to your choice when placing orders . 3.If you didn't receive the item after 45 days,please feel free to contact us.We will make all our effort to resoe the problem. 4.We are not responsible for delays causedby the customs, duties,taxes or other customscharges. Warranty: 1.All it have 1 year guarantee.IF your purchase do not meet merchantable quality, fitne for purpose or match the descrtion, We can make sure your iues are resoed . 2.For wrongly-shped it, Please contact us in 48 hours after delivery.We will arrange to deliver the correct it or return all your payment. 3.For defective or faulty products,please take photos or videos,we would resend or after confirmation.

About shping
Shping and Pack All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resoe the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.