Japan Radio Co. JLR-7900, Инструкция по эксплуатации

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4-10
4.2.2 Turning off the power
If the key and the key are pressed and held down simultaneously, the power will be
turned off and the screen display will turn off.
4.2.3 Adjusting the Backlight by using the kry
The brightness of display and operation panel backlight can be set to one of four levels (bright, medium,
dark, off).
Whenever is pressed, the level changes in the order of bright – medium – dark – off –dark –
medium – bright.
4.2.4 Adjusting contrast
Contrast can be adjusted over 13 levels.
Whenever is pressed, the contrast is reduced (or increased) from the current setting and after
the contrast reaches the lowest (or highest) level, the contrast increases (reduces) gradually.
The power may be turned on due to the release timing of your finger.
In this case, first release the and then release the .
Supplement

The brightness levels other than “off” can be set. See “4.9.2 Adjusting the back light"".

An external dimmer unit can also be used for adjusting brightness. See “4.15.3 Selecting a
dimmer unit”.
Supplement