RGB LED Strip - Red Light not working after connecting the 2nd strip with Amplifier

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sashtaneja
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RGB LED Strip - Red Light not working after connecting the 2nd strip with Amplifier

Hi there!

Okay so I have 2 RGB LED Strips connected with a portable RGB LED Amplifier but I cannot get the red light to work on the second strip. The Blue and Green ones do work flawlessly on the 2nd strip.

Things to note:
- I’ve used 2 power supplies (12V, 2A) – one for the first strip, and another for the LED amplifier.
- I’ve tried with not 1, not 2, but 3 separate amplifiers but the red light on the 2nd strip NEVER works when connected with the Amplifier.
- The Red light on the 2nd strip DOES work when I connect the 2 strips without the amplifier (and yes the brightness does reduce in the 2nd strip).

I’m using the following LED amplifier and the connection diagram is as follows.

Any ideas why this is happening or how can I fix it?

Much appreciated!

LED Amp
Circuit Diagram

Sash

Edited by: sashtaneja on 11/23/2020 - 19:28
AguassissiM
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Just use one 12v-5A power supply in the middle of the strips without the amplifier, that is how i wired mine.

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sashtaneja
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Location: india

That’s a great solution, but unfortunately won’t work for me. I need to connect 5 strips together with one controller (so I can make sure all strips display the same color/dance in sync) when I give a command from the remote. The controller doesn’t support more than 2 strips in parallel so I’ve gotta use amplifiers.

Trying to build something like this:
https://www.dropbox.com/s/zx1dqzzc8j7l21f/Screenshot%202020-11-24%20at%2...

Sash

AguassissiM
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I`m sure someone with more experience will be able to give you a hand. Big Smile

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