![Huges Aircraft HLCD0488 Datecode 8041 - 1980 41st week - Oct 12-18th](https://i0.wp.com/staging.voiceofthemummy.com/wp-content/uploads/2022/04/20220416_221143.jpg?resize=1024%2C705&ssl=1)
Replacement LCD display driver chips are available $25 each.
If your having problems with your Microvision and the LCD displays random blocks on power up. A faulty display chip could be the cause. I would recommend sending in your MV for diagnosis.