Instruction Manual

Firmware Update for the TX-NR838
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How!to!upgrade!the!firmware!via!the!USB:!
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1. Turn!on!the!receiver!and!select!the!USB!input,!and!wait!for!the!“Now!Initializing…”!process!to!complete!
(35Z45!seconds).!!
!!!
2. Insert!the!USB!Memory!Device!containing!the!software!into!the!front!panel!USB!port!of!the!receiver!
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3. From!the!front!panel!press!and!hold!the!“USB”!input!button,!followed!by!the!“On/Standby”!button.!!
Unit!will!display!“Update'<Enter>".'Press!Enter!!
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4. Press!the!“Enter”!button!on!the!front!panel!to!begin!the!update.!!
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5. Do!not!shut!the!unit!off!until!“Complete”!is!shown!on!the!front!display!
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6. Once!the!update!has!completed!check!the!firmware!version!to!confirm!that!the!unit!is!fully!up!to!date.!!
If!it!is!not,!run!the!update!again.!
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To!check!the!firmware!version,!press!the!“Home”!button!on!the!front!panel!or!remote!control.!
Highlight!“Hardware!Setup”!and!press!enter.!Highlight!“Firmware!Update”!and!press!enter.!The!current!
firmware!version!will!be!displayed!on!the!Firmware!Update!page.!
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Current!firmware!version:!2031-0110-2001-0602-0203