HD5 Theory of Operation

this section describes how specific components operate on the hd225 and hd1025 on board leds the four on board leds have the following indicators true false 213false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type false unhandled content type on board switch / svc button the on board switch is connected to the gpio02, which is pulled low when the service (svc) button is pressed conversely, a pull up on the button normally sets the gpio02 to be pulled high reset switch / gpio button the on board switch 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 hd225 and hd1025 have one microsd slot there is a 2tb limit on the storage capacity of microsd cards used with the player wireless module the hd225 and hd1025 both have a dual antenna connection this allows users to install a compatible wireless module without disassembling the unit this connection has a bluetooth option pdf version https //archbee doc uploads s3 amazonaws com/aiw58 3npddpglgjivvls abpdglffbgcljmqxiibif 20250623 203102 pdf