Panasonic KX-TG5776S Service Manual page 62

KX-TG5776S/KX-TG5777S/KX-TGA571S
8.1.9. LCD Contrast Adjustment for Handset
While pressing [ 1 ], [ 9 ] and [
simultaneously, install the battery.
(Cancel)
Press TALK
<<Remove the battery.>>
POWER OFF
]
LCD/LED Check
LCD: Test Pattern is displayed.
LED: Three colors are turned on in turn.
Press TALK
LCD Contrast
Adjustment
LCD: Test Pattern has been displayed.
LED: Turns Off.
Push Up/Down the joystick to adjust the
contrast.
Up: Increases the contrast.
Down: Decreases the contrast.
To set the contrast you adjusted,
press
A confirmation tone (long beep) sounds.
Key Check∗
LCD: Turns Off.
∗ Key Check is not necessary.
It is recommended to power off after
setting the LCD contrast.
Power OFF
SP .
62
1.5 inch Color LCD