Dolby Laboratories RC2573GR - Manual (Page 8)

7
Symptoms Suggested steps
Remote
Control TV does not respond to
Guest Remote Control Change the batteries.
Aim the remote control directly at remote control sensor lens
on TV and press any button on the remote control.
Check if
YES is selected in the REMOTE CONTROL
LOCK feature in SECURITY menu (see Specifying the
security options on page 24 ). Select NO to deactivate lock
function.