How to disassemble the traditional light display?

According to the test of external lights, only one of the four lights is aging, so it is prudent to replace it with a two-lamp high-voltage board, cut off the high-voltage part of the original integrated board (which can also be used for other purposes), and fix the new board in its original position, because many brand-name machines now have two lights, which reduces the risk of changing lights, and the effect is good after replacement. It should be better than an external light.