LS424 Theory of Operation

this section describes how specific components operate on the ls424 on board leds the ls424 has a single red led to indicate that the power is on the led will flash during the firmware update process it will also flash a certain number of times to indicate an error state the flash codes are described below true 330,331left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type left unhandled content type service button the service (svc) button provides a dedicated gpio button (gpio12) for the os pressing the svc button pulls the pin low conversely, releasing the button pulls the pin high reset button the reset button is connected to the reset circuit pressing down the reset button will send an initial signal to the system software, and holding the reset button low for approximately 4 seconds will cause a hard reset microsd slot the ls424 has one microsd slot, which supports transfer modes up to uhs 1 ddr50 (50mb/s) there is no inherent limit on the storage capacity of microsd cards used with the player wireless module the ls424 has an internal m 2 slot for installing a compatible wireless module the m 2 wireless module connects via cable to an external, attachable wireless antenna