Denon AVR-2312CI Protocol Manual page 26

※Remote Lock/Panel Lock
COMMAND PARAMETER
SY REMOTE LOCK ON
REMOTE LOCK OFF
PANEL LOCK ON
PANEL+V LOCK ON
PANEL LOCK OFF
※UPGRADE ID Display
COMMAND PARAMETER
UG IDN
function
REMOTE CONTROL LOCK ON/OFF
PANEL BUTTON (Except MASTER VOL.)CONTROL LOCK ON
PANEL BUTTON & MASTER VOL. CONTROL LOCK ON
PANEL BUTTUM & MASTER VOL. CONTROL LOCK OFF
function
ID Number for UPGRADE is displayed on FL Display
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example
SYREMOTE LOCK ON<CR>
SYREMOTE LOCK OFF<CR>
SYPANEL LOCK ON<CR>
SYPANEL+V LOCK ON<CR>
SYPANEL LOCK OFF<CR>
example
UGIDN<CR>