DLP4710EVM-LC: I connected the power, then connected the USB. D57 is constantly on. After I pressed W21, D57 -> D56 flashes -> D57, but the projector still does not turn on. T

Part Number: DLP4710EVM-LC

EVM Status: Connected, Powered Off
Using a multimeter to measure, when SW21 is pressed, the 1.8V and 1.1V voltages reach a reasonable range, but they immediately drop to 0.