Specifications - Casio JD-4000 Service Manual

2. SPECIFICATIONS

Telephone Directory Mode
Storage and recall of telephone directory data (name, telephone number, portrait). Includes secret
memory area and auto sort function.
Schedule Mode
Storage and recall of appointments (month/date/hour/minute, description). Includes secret memory
area and auto sort function.
Data Memo Mode
Storage and recall of memos (memo name, memo). Includes secret memory area and auto sort
function.
Timekeeping Mode
Average of accuracy ±3 seconds per day under normal temperatures: year/month/date, hour/minute/
second, AM/PM, day of the week, full automatic calendar, 12/24 hour timekeeping format
Alarm Mode
Daily Alarm (20-second electronic buzzer); Hourly Time Signal (beeps every hour on the hour)
Fortune Telling Mode
Fortune telling on any date from January 1, 1901 to December 31, 2099.
Match Maker Mode
Compatibility of any two people whose birthdays are from January 1, 1901 to December 31, 2099.
Triple Play Mode
Calculator Mode
10-digit arithmetic calculations; constant calculations; memory calculations; 20-digit approximations;
percentage calculations; square roots; sign changes; function command signs
Other functions
Contrast adjustment
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