Tecsun PL-310ET - How to Change the Display Mode; Key-Lock Function; Working With Intelligent Light

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PL-310ET
HOW TO CHANGE THE DISPLAY MODE
With radio OFF: Repeat
pressing the [DISPLAY] button
to view temperature,
home/world time or alarm time
display.
With radio ON: Press the
[DISPLAY] button to view
home time, world time, alarm
time, temperature or signal
strength showing on the upper
right corner of the display.
KEY-LOCK FUNCTION
Press & hold the [ ] button until “ ” symbol appears
on the display to activate the key lock function.
Press & hold it again until “ ” symbol disappears to
deactivate the locking function.
WORKING WITH INTELLIGENT LIGHT
This radio has an intelligent lighting function with which the
backlight would be on for 5 seconds when operating any
keys or knobs.
You can use the following methods to turn on / off the
backlight:
TEMPORARY ILLUMINATION:
Press the [LIGHT/SNOOZE] button with a “B” sound to
illuminate the LCD for 5 seconds.
PERMANENT ILLUMINATION:
Press & hold the [LIGHT/SNOOZE] button until a prolonged
double beep (BB) sound heard for permanently illumination.
Press it again with a double beep (BB) sound to turn off the
backlight.
Temp.
Press