Denon AVR-2311CI - Page 52

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(3) If connection is not good, then you can see the “Communication check NG” message.
Please confi rm the following
(a) Check the connection of the AV receiver/amplifi er and PC. (refer to “2.Connection of the AV receiver/amplifi er” )
(b) Check the operation mode of the AV receiver/amplifi er. (refer to “Turn on the AV receiver/amplifi er”)
(c) Check the selection of the RS-232C port number of PC.
6. Download the fi rmware
(1) Click the "Load" button.
(2) Download the fi rmware from the specifi ed download source to PC.