Notes To Release Demo Mode - LG SJ4R Owner's Manual

36 Troubleshooting

NOTES to release Demo mode

Can not change input source with F button such as BT
(Bluetooth), HDMI etc. and All the function LEDs are
Remote Control does not work. (No response)
4
PROBLEM
turned on.
CAUSE & CORRECTION
y Unplug the power cord and plug it in again. If that
doesn't work, press and hold F button (About 15
seconds) on the main unit until the function LED
indicates current selected function.