Kaige car dvd can only display blue and yellow.

I want to ask why Kaige car dvd can only display blue and yellow. The display screen is damaged. According to the inquiry of official website Pacific Love Automobile. Kaige car dvd can only display blue and yellow because the display screen is damaged, the background light bulb is burnt out, and the main board LED power chip is damaged, so it needs to be sent to the store or garage for repair in time. Kaige Auto Service Co., Ltd. (formerly known as Guangzhou Kaige Auto Beauty Service Co., Ltd.), established in 2009, is located in Guangzhou, Guangdong Province, and is a wholesale-oriented enterprise.