How To Test Tv Led Backlight Strip With Multimeter. Video demonstrating how you can test your backlight leds without expensive test equipment.summarized versions of most projects: If you want the tool to test this, its on amazon cheap!
0300V Output LED Tester LED TV Backlight Testers MultiFunction LED Strip Bead Test Tool from www.walmart.com
A good led should light up and the bad one will not light up. Four sets of 14 leds, running in parallel at 12v(i think). See the three photos below:
The Display Window Should Indicate Either 0L Or Open.
As backlight failure is a very common issue, this is the first thing to test. You could try setting the current to 1 or 2ma and turn up the volts slowly. You want to choose an option higher than the voltage you are testing.
Video Demonstrating How You Can Test Your Backlight Leds Without Expensive Test Equipment.summarized Versions Of Most Projects:
We let the machine provide everything from the original cable. If you break it then the panel can consider useless unless if you know a way to fix it. You have to check each led in the diode mode.
Find The Terminals On Each Led Strip And Wire The Battery Pack To Them.
Unplug the tv and disconnect the backlight cable from the board. Best way is to turn the screen with the glass plate downwards on a big table. Leds on full intensity when using the tester, then next is to replace the power board and check if that fixed it.
These Are Normally Driven By 12V.
So my tv's backlight stopped working and when i checked the backlight led strip, i saw that it used a 310mm long strip with 56 leds; The image would be very dark,. Maybe first inspect the power board for any obvious component damage e.g.
Hook Up The Red And Black Test Leads.
In this video i demonstrated how to repair of led tv backlight strips / how to test led tv backlight strip with multimeter#repair #backlight #strips e469119. A good led should light up and the bad one will not light up. Heat stressed components or blown or bulging capacitors
