Kenwood TK-3170 User Manual

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T
RANSCEIVER
 B
ACKLIGHT
To turn the transceiver display backlight on, press the key
programmed as Lamp.
Pressing any key other than the PTT switch and the Power
switch/ Volume control while the backlight is on will reset the
lamp timer, allowing the backlight to remain lit for an additional
5 seconds.
To turn the display backlight off immediately, press the Lamp
key while the backlight is on.