First take the amp out. smell the amp youll smell a fried or not then test the sub even on home stereo i doubt its blown these set up are 250w max. i bet then you will realize that it is tmhe servo technology easy fix is to get a small external amp then you wont have another problem
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This type of problem is usually caused by a failure of the power supply board. The power supply puts out 5v and 12v to the electronics. If the power supply 5v side fails then the electronics does not get the right power but the back lights do so you get a white screen and no picture. The audio electronics are powered by a different power output. Here is a link to a repair guide for the Q19w that shows how to dis-assemble the unit and then which capacitors need to be replaced to revive the unit.
I own a 2002 Honda CRV. I bought it used and all owners manual was
provided with the purchase. I lost power to the car's system and the
radio set itself in an anti-theft mode requiring a code to get the radio
to function again. I tried pushing several buttons without succees. I need your help to put the right code!!
You Have constant power (yellow wire) but your Acc wire or switched power wire (RED WIRE) does not have power. Check the connection of this wire. You most likely have a blown fuse in your vehicles fuse panel.
You have a bad power plug on the unit. The solder connection are loose. The one have is doing the same thing. The power plug pins have came lose and need to be resolder. Working on how to take the unit apart to solder the connection.
You nered to clean the contacts on the main unit and the faceplate, evidently you have contamination keeping the power from getting from the main head unit to the faceplate.
You need to fine tune (to connect wirelessly) ur wireless mic to your wireless receiver unit. Put a fresh battery to ur Mic then power-up ur receiver unit, find the right channel for both unit.
Did you check that the bu is a working sub. Connected inside?
Are both the main power and remote power is hooked up to the amp?
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