Sony rdr-hx720 tray won't open and says traylocked?
The disc tray does not open and you cannot remove the disc after you press Z (open/close). ,Turn off the recorder. Once the clock appears in the front panel display, disconnect the mains lead. (If the recorder does not turn off or if the clock does not appear in the front panel display, disconnect the mains lead anyway.) Connect the mains lead again while pressing down A on the recorder, and release the button when the disc tray opens. Then, keep [/1 on the recorder pressed for about ten seconds until "WELCOME" appears in the front panel display
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