0-330V TV LED Backlight Tester Voltage Current Adjustable Smart-Fit Manual Constant Current Driver LED LCD TV Screen Lamp Bead

PRODUCT OVERVIEWS

· MODEL : KT4H · Vin: AC 85-265V · Vout: DC 0-330V (Automatic / Adjustable) · Accuracy : ＜ (±0.5 ± 1%Vout)V · Iout : 0-150mA (Automatic / Adjustble) · Constant Current Board Current : 0-999mA · Accuracy : ＜ (±2 ± 1%Iout)mA · Pin : 50VA (MAX) · Temperature : -20℃ - ＋40℃

PACKAGE LIST: 1x LED Tester 1x Test Probe(red * black) 1x Power Cord(US or EU or UK) 1x Constant Current Board Socket Cable 1x Connection Cl 1x ToolKits ( Colors) 1x User Manual

① Input Interface of Constant Current Board ② Power Switch ③ Power Supply ④ Banana Plug ⑤ Voltage and Current Adjustment Knob ⑥ Current Switch (1mA/Adjustment Current)

TESTING FLOWCHART

NOTICE: A normal LED str is working, but working LED str may be not always normal, it should combine with the voltage to determine the LED is normal or not.

WIRING DIAGRAM

TEST OF CONSTANT CURRENT BOARD

PRODUCT DEMONSTRATION

Note: Adjust the current in short circuit ; Adjust the Voltage in open Circuit as shown in the figures above.

Test Method of Constant Current Driver Board

Testing situation: The LED str of backlight is on with the tester, but it does not work with the constant current board; 1. Cut off the power of TV, unplug the interface sockets of the constant current board and light bar; 2. Connect the constant current board with the tester using the cables in the kits on right polarity. 3. Insert the Red and Black pens of the tester into the anode and cathode of the interface of the LED light bar. 4. Turn the power of TV on. 5. Testing voltage ＞30V, Current ＞30mA and keep stable, and the LED str working normal, then the Constant current board is normal.

PRODUCT DETAILS

ACCESSORIES

WARRANTY

1. This product is guaranteed up to one year from purchase. 2. If there are some performance problem, simply return it in its original condition within 30 days of receiving it. In the warranty period, we will repair it and sh you a good tester. 3. The warranty period will be extended for three months after repair. 4. During the warranty period, freight AA. 5. Please note that the guarantee policy does not apply to: A. Product has man-made damage or accidental damage such as exceive input voltage high temperature, water damage, drop and break, mechanical damage and corrosion. B. Unauthorized modification and tearing the product date mark.

About shping
Shping and Packaging 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.