LED Strip test points and testing?

[lmcancu]

Hi is there a guide in this forum on how to test the LED backlight TV strips? I purchased an LED tester on amazon, but I am a bit confused on the test points and how to test the individual LEDs? I took apart a RCA 43" TV Rlded4331b. Please see attached pictures. I understand that all the LEDs are in series, but on these strips I don't see any individual test points for each LED? Any tips or guides?
Thanks in advance

[howardc64]

Re: LED Strip test points and testing?

The 2 copper colored prints on both side of each LED lens (eg D6+ and -) are probably the anode cathodes test points of the LED. Try red tester probe on D*+ and black test probe on -

[lmcancu]

Re: LED Strip test points and testing?

Yes that's true but its quite confusing. I did figure it out and will try to explain in the photos below. This is with an LED tester, but you can also use a voltmeter on diode setting for the single LEDs.
Edit: Actually, you can test the left-most LED without removing the diffuser. Place the negative probe on the - test point next to it, and the positive probe on the - test point of the right most LED. i.e. the circuit from the TV starts first with the LED right of the connector, and to the next 2 LEDs on the right, and the right-most LED is then connected to the left most LED, and then so on until the LED just before the connector, and then to the connector

[lmcancu]

Re: LED Strip test points and testing?

Updated with corrected diagrams