User manual

1641-1

Module No.1641

GENERAL GUIDE

• If the contents of the display seem to be continually changing, see “AUTO DISPLAY FUNCTION” for information on how to stop it.

• Press

C to change from mode to mode. After you perform an operation in any mode, pressing

C returns to the Timekeeping Mode.

• In the Timekeeping, Stopwatch, or Countdown Alarm Mode, press

D to illuminate the display for about two seconds.

TIMEKEEPING MODE

To set the time and date

1. Hold down

A until the seconds digits start to flash

on the display. The seconds digits flash because

they are

selected

2. Press

C to change the selection in the following

sequence.

3. While the seconds digits are selected (flashing), press

B to reset the seconds to

“00”. If you press

B while the seconds count is in the range of 30 to 59, it is reset

to “00” and 1 is added to the minutes. If the seconds count is in the range of 00 to

29, the minutes count is unchanged.

4. While any other digits (besides seconds), are selected (flashing), press

B to in-

crease the number or

D to decrease it. Holding down either button changes the

current number at high speed.

• While the 12/24-hour setting is selected, press

B to switch between the two for-

mats.

5. After you set the time and date, press

A to return to the Timekeeping Mode.

• The day of the week is automatically set in accordance with the date.

• The date can be set within the range of January 1, 1995 to December 31, 2039.

• If you do not operate any button for a few minutes while a selection is flashing, the

flashing stops and the watch goes back to the Timekeeping Mode automatically.

ABOUT THE BACKLIGHT

About the Auto Light Switch Function

When the auto light switch function is turned on, the backlight automatically turns on

for two seconds under the conditions described below. Avoid wearing the watch on

the inside of your wrist. Doing so causes the auto light switch to operate when not

needed, which shortens battery life.

Moving the watch to a position that is parallel to the ground and then tilting it

towards you approximately 40 degrees causes the backlight to illuminate.

Hour

Seconds

Minutes

Month

Day

Year

12/24-Hour Format

Press

Seconds

Minutes

Hour

PM indicator

Day of week

Month – Day

• The backlight may not illuminate if the face of the watch is more than 15 degrees off

parallel to the left or right. Make sure that the back of your hand is parallel to the

ground.

• Static electricity or magnetic force can interfere with proper operation of the auto

light switch function. If the backlight does not illuminate, try moving the watch back

to the starting position (parallel with the ground) and then tilt it back toward you

again. If this does not work, drop your arm all the way down so it hangs at your side,

and then bring it back up again.

• Under certain conditions the backlight may not light until about one second or less

after turning the face of the watch towards you. This does not necessarily indicate

malfunction of the backlight.

To switch the auto light switch function on and off

In the Timekeeping Mode, hold down

B for one or two seconds to turn the auto light

switch function on and off.

• The auto light switch indicator is shown on the display in all modes while the auto

light switch function is on.

• In order to protect against running down the battery, the auto light switch function is

automatically turned off approximately three hours after you turn it on. Repeat the

above procedure to turn the auto light switch function back on if you want.

• Pressing

D while in the Timekeeping Mode illuminates the display, regardless of

the auto light switch’s on/off setting.

Caution

• The backlight of this watch employs an electro-luminescent (EL) light, which loses

its illuminating power after very long term use.

• Frequent use of the backlight shortens the battery life.

• The watch emits an audible sound whenever the display is illuminated. This is be-

cause the EL light vibrates slightly when lit. It does not indicate malfunction of the

watch.

Warning!

• Never try to read your watch when mountain climbing or hiking in areas that

are dark or in areas with poor footing. Doing so is dangerous and can result

in serious personal injury.

• Never try to read your watch when running where there is the danger of acci-

dents, especially in locations where there might be vehicular or pedestrian

traffic. Doing so is dangerous and can result in serious personal injury.

• Never try to read your watch when riding on a bicycle or when operating a

motorcycle or any other motor vehicle. Doing so is dangerous and can result

in a traffic accident and serious personal injury.

• When you are wearing the watch, make sure that its auto light switch function

is turned off before riding on a bicycle or operating a motorcycle or any other

motor vehicle.

Sudden and unintended operation of the auto light switch can create a dis-

traction, which can result in a traffic accident and serious personal injury.

TELEMEMO MODE

Caution

The following causes all data stored in memory to be deleted. Be sure to

always keep separate written copies of all important data.

• Malfunction or repairs

• Dead battery

• Battery replacement

In no event will CASIO be liable for loss of data or any damages arising out of

such loss.

The Telememo Mode lets you store up to 30 pairs

of name and telephone number data. The name

can be up to 8 characters long and the number up

to 12 digits. Data is automatically sorted into al-

phabetical order based on the name data. You can

recall data by scrolling through it on the display.

To input Telememo data

1. In the Telememo Mode, press

B or

D until the

new data display appears.

• If the message “FULL” appears on the display, it

means that memory is full. To store more data,

you will first have to delete some of the data.

2. Hold down

A until the flashing cursor appears

on the name area.

3. Use

B or

D to input a character at the cursor

position. The character changes in the follow-

ing sequence. Holding down either button chang-

es the character at high speed.

4. After you select the character you want, press

C to advance the cursor to the right.

• Repeat steps 3 and 4 until you complete name input.

• You can input up to 8 characters in the name area.

5. After the name input is through, use

C to move the cursor to the number area.

6. While the cursor is in the number area, use

B or

D to input a number you want.

The character changes in the following sequence. Holding down either button

changes the character at high speed.

• Note that you must input at least one character in the name area. You can skip

input of telephone number.

7. After you select the character you want, press

C to advance the cursor to the right.

• Repeat steps 6 and 7 until you complete number input.

A to Z

0 to 9

(Space)

–

••

•

Press

– (Hyphen)

0 to 9

(Space)

Press

Timekeeping Mode

Telememo Mode

Alarm Mode Stopwatch Mode

Countdown Alarm Mode

Press

Parallel to ground

More than 15 degrees

too high

More than 15 degrees

too low

Auto light switch

indicator

Hold down

ON OFF

Name area

Number area

Summary of content (2 pages)

PAGE 1
Module No.1641 1641-1 GENERAL GUIDE • If the contents of the display seem to be continually changing, see “AUTO DISPLAY FUNCTION” for information on how to stop it. • Press C to change from mode to mode. After you perform an operation in any mode, pressing C returns to the Timekeeping Mode. • In the Timekeeping, Stopwatch, or Countdown Alarm Mode, press D to illuminate the display for about two seconds.
PAGE 2
1641-2 8. After inputting the data you want, press A to store it into memory. • The name area shows only 5 characters, but automatically scrolls from right to left to show all of the characters that make up the text. STOPWATCH MODE Mode indicator 1/100 second To scroll through Telememo data In the normal Telememo Mode (when the display is not flashing), press B to scroll forward or D to scroll backward through stored data.