Pumpkin CN27 car stereo can not boot up
Posted: Tue Dec 22, 2020 7:40 am
Recently, some CN27 series' car stereo can not boot up normally, after discuss with our tech support, they offer some method to detect the problems.
1. Please measure the red and and black wire to check if there is 12v voltage, see image
2. Please measure the red and yellow wire to check if there is 12v voltage, see image
3.If there are 12v on red and yellow wires,maybe it is due the the cpu board is not touch totally with main board, then you need to open the car stereo and press the CPU board. About how to open the car stereo, pls refer this video
Notice: There are more pins in the main board, please check if CPU board connected perfect with the pins.
After pressing cpu board, if the car stereo still can not open normally, maybe it is a defective unit, pls contact customer service to get further support.
1. Please measure the red and and black wire to check if there is 12v voltage, see image
- measure the voltage of red and black wires .png (875.17 KiB) Viewed 14736 times
2. Please measure the red and yellow wire to check if there is 12v voltage, see image
- mesaure the voltage of yellow and black wires.png (891.68 KiB) Viewed 14736 times
3.If there are 12v on red and yellow wires,maybe it is due the the cpu board is not touch totally with main board, then you need to open the car stereo and press the CPU board. About how to open the car stereo, pls refer this video
- CPU Board.png (1.22 MiB) Viewed 14736 times
Notice: There are more pins in the main board, please check if CPU board connected perfect with the pins.
- Black Pin.png (1.99 MiB) Viewed 14736 times
After pressing cpu board, if the car stereo still can not open normally, maybe it is a defective unit, pls contact customer service to get further support.