Radio Shack 420 - Manual (Page 16)

16
ADJUSTING THE DISPLAY CONTRAST
1. Repeatedly press MODE until the system displays
CALLER ID MODE .
2. Press either REVIEW button. The system displays the
total number of stored calls.
3. Press and hold READ for about 6 seconds. The system
shows CONTRAST : XX .
4. Press REVIEW to increase the contrast (up to 15) or
REVIEW to decrease it (down to 00).
5. Press READ to store the setting.
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