AU335 Theory of Operation

this section describes how specific components operate on the au335, and which audio formats are supported on board leds (pwr) the au335 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 false 122false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type false left unhandled content type service button the service (svc) button can be used for a number of debugging tasks when it is pressed, a gpio pin is pulled low, and when it is released it normally sets the gpio pin to be pulled high reset button the reset button is connected to the reset circuit pressing the reset button will send an initial signal to the system software, and holding the reset button low for approximately four seconds will cause a hard reset microsd slot the au335 have 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 pdf version https //archbee doc uploads s3 amazonaws com/aiw58 3npddpglgjivvls mv2nchjggf8ffmbldc5ra 20250623 210956 pdf