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Pyramid - PS21KX 20 Amp Power Supply Car Audio Amplifier - Page 5 Questions & Answers
Amplifier Goes into protected mode when I connect the rca
jacks.
The wiring is bad on the plugs and shorting out, or whatever is on the end of the cable has an issue. Also look along the cable for rodent, cat, dog chewing.
Questions like this need 'make model (what is is) of every item involved. On a vehicle 'year make model' as well.
The bad ground causes the amplifier to go into the protect mode. So, make sure to check the grounding wire and overall connection to figure it out and set back the amplifier to its normal mode.
Feb 15, 2023
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MY AMPLIFIER DOESNT SWITCH ON BUT I CAN SEE THE RED LIGHTS
first check all the power connections verify every thing is hooked up correctly. check the fuses. and the amp has to have a separate wire called remote going to the back of the head unit. the head unit sends a signal to the amp to tell it to turn on when the head unit is powered on.
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