CASIO 5631 (02) PDF Document

The indicators on your CASIO 5631 watch face provide the following information:

• Displayed while an alarm is turned on.

• Displayed while the watch is indicating summer time.

• The second hand will point to [CONNECT] if the watch is connected with a phone.

• Displayed during p.m. times while 12-hour timekeeping is being used.

• The second hand will point to [READY] if the watch is standing by for connection with a phone.

• **Battery level:** In the Timekeeping Mode, the current charge level is indicated by the mode hand.

• Displayed while the hourly time signal is enabled.

• Displayed while the watch’s hands are shifted for easier reading.

• Displayed while Auto Light is enabled.

• In the World Time Mode, the mode hand points to [WT].

• In the Stopwatch Mode, the mode hand points to [ST].

• In the Timer Mode, the mode hand points to [TR].

• In the Alarm Mode, the mode hand points to [AL].

Each press of the (D) button cycles between the watch modes on your CASIO 5631. The sequence is as follows: Timekeeping Mode -> World Time Mode -> Stopwatch Mode -> Timer Mode -> Alarm Mode -> and back to Timekeeping Mode.

To return to the Timekeeping Mode from any other mode, hold down the (D) button for at least two seconds.

In the Timekeeping Mode on your CASIO 5631, each press of the (A) button toggles the digital display to show different information. You can cycle between:

• Hours, minutes, and seconds

• Month, day, and day of the week

Additionally, you can press the (E) button to display the currently selected Home City for a short while. After that, the screen you started from re-appears.

The Hand Shift feature moves the analog hands out of the way for an easier view of the digital display information on your CASIO 5631.

1. While holding down the (L) button, press the (D) button. This will shift the analog hands.

2. To return the hands to their normal timekeeping positions, hold down (L) as you press (D) again, or simply press (D) to change to another mode.

Note: If you leave the watch with its hands shifted and do not perform any operation for about one hour, the hands will automatically resume normal timekeeping.

Your CASIO 5631 runs on power from a rechargeable battery that is charged by a solar panel integrated into the watch face. Power is generated whenever the face is exposed to light.

Charging the Watch:

• When you are not wearing the watch, place it in a location where it is exposed to bright light.

• While wearing the watch, ensure its face is not blocked from light by the sleeve of your clothing. Power generation is reduced even when the face is only partially blocked.

Checking the Charge Level:

In the Timekeeping Mode, the mode hand indicates the current charge level:

• ① Good (high charge)

• ② Good (medium charge)

• ③ Low Battery

Low Battery and Dead Battery Indicators:

• **Low Battery Power:** The second hand jumps at two-second intervals.

• **Dead Battery:** All hands are stopped.

If the battery goes low or dead, expose the watch face to light as soon as possible. Exposing the watch face to light after the battery goes dead will cause the [CHARGE] indicator to appear and the second hand to rotate counterclockwise until it stops at second 57, indicating that charging has started.

The charging times for your CASIO 5631 vary depending on the light level. Actual charging time depends on the local charging environment.

Charging Times Required for 1 Day of Operation

Times Required to Achieve Next Charge Level

Under a sunny day, outdoors (50,000 lux):

• Dead battery → Medium charge: 2 hours

• Medium charge → High charge: 20 hours

• High charge → Full charge: 6 hours

Under a sunny day, near a window (10,000 lux):

• Dead battery → Medium charge: 6 hours

• Medium charge → High charge: 76 hours

• High charge → Full charge: 21 hours

On an overcast day, near a window (5,000 lux):

• Dead battery → Medium charge: 10 hours

• Medium charge → High charge: 123 hours

• High charge → Full charge: 33 hours

Under indoor fluorescent lighting (500 lux):

• Dead battery → Medium charge: 116 hours

The Power Saving function on your CASIO 5631 helps conserve battery by automatically entering a power-saving state when left in the dark.

• **Power Saving Level 1:** If the watch is left in a dark location for about one hour between 10 p.m. and 6 a.m., the digital display goes blank, and the second hand stops at 12 o’clock. The watch can still connect with a phone at this level.

• **Power Saving Level 2:** If the watch is left in this condition for six or seven days, all hands stop, and the digital display goes blank. All functions are disabled.

Recovering from Power Saving Operation:

To exit power saving, perform one of the following operations:

• Press any button.

• Move the watch to a bright location.

• Trigger auto light by angling the watch towards your face.

The watch will not enter power saving while in the Alarm, Stopwatch, or Timer Mode. The watch may also enter power saving if its face is blocked from light by your sleeve while wearing it.

To use your CASIO 5631 watch with a phone, you first need to pair them. Follow these steps:

1. **Install the app on your phone:** In Google Play or the App Store, search for the CASIO “G-SHOCK Connected” app and install it on your phone.

2. **Configure Bluetooth settings:** Enable your phone’s Bluetooth. For details, see your phone’s documentation.

3. **Pair the watch with a phone:**

a. Move the phone to be paired with close to (within one meter of) the watch.

b. Tap the “G-SHOCK Connected” icon on your phone.

c. Perform the operation shown on the phone screen to be paired with. If prompted, follow the on-screen instructions.

If pairing fails, [ERR] will appear on the watch display momentarily. If this happens, perform the pairing procedure again from the beginning.

When in a hospital, on an aircraft, or any other location where connection with a phone may cause problems, you can disable auto time adjustment on your CASIO 5631. To re-enable it, perform the same operation again.

1. If the watch is in any mode besides the Timekeeping Mode, hold down (D) for at least two seconds to enter the Timekeeping Mode.

2. Hold down (A) for at least two seconds until the name of the currently selected Home City is displayed.

3. Press (D) 14 times. This displays [RCV].

4. Press (E) to toggle between the auto time adjustment settings:

• [OFF]: Auto time adjustment disabled.

• [ON]: Auto time adjustment enabled.

5. Press (A) to exit the setting screen.

Note: The auto time adjustment setting can be changed only while the watch is paired with a phone.

Your CASIO 5631 connects with your phone at preset times each day to adjust its time settings automatically. It adjusts four times a day according to a preset schedule. If you leave the watch in Timekeeping Mode, it will perform this adjustment automatically.

Triggering Immediate Time Adjustment:

If you want to trigger an immediate time adjustment, you can establish a connection with your phone.

1. Move the phone close to (within one meter of) the watch.

2. Press (C). [SET] will flash to indicate the connection operation has started. Once connected, [OK] will appear, and the watch will adjust its time setting based on information from the phone.

This operation can be performed from any watch mode. The connection terminates automatically after the time adjustment is complete. If it fails, [ERR] will appear.

You can use the G-SHOCK Connected app to select a World Time City and configure its summer time setting on your CASIO 5631.

Selecting a World Time City:

1. Tap the “G-SHOCK Connected” icon on your phone.

2. On the watch, hold down (C) for at least 1.5 seconds. Release the button when [CNCT] starts to flash. When a connection is established, [CNCT] will stop flashing and the second hand will move to [CONNECT].

3. Perform the operation shown on the phone screen. The selected World Time setting will be reflected on the watch.

Configuring the Summer Time Setting for World Time:

1. Tap the “G-SHOCK Connected” icon.

2. On the watch, hold down (C) for at least 1.5 seconds to connect.

3. Perform the operation on the phone screen to select a summer time setting:

• **”Auto”**: The watch switches between standard and summer time automatically.

• **”OFF”**: The watch always indicates standard time.

• **”ON”**: The watch always indicates summer time.

You can swap your Home Time and World Time on your CASIO 5631 using either the G-SHOCK Connected app or the watch buttons.

Using the G-SHOCK Connected App:

1. Tap the “G-SHOCK Connected” icon on your phone.

2. On the watch, hold down (C) for at least 1.5 seconds to establish a connection.

3. Perform the operation shown on the phone screen to swap your Home Time with your World Time.

Using the Watch Buttons:

1. In the World Time mode, press (A) and (L) at the same time to swap your Home City time with your World Time.

Note: Auto time adjustment does not work for 24 hours after swapping the Home Time and World Time. This function is useful when moving to another time zone.

Phone Finder allows you to trigger a tone on your phone to help you locate it. The tone is forced to sound even if the phone is in vibrate mode.

1. If the watch is connected with a phone, press any button to terminate the connection.

2. If the watch is not in Timekeeping Mode, hold down (D) for at least two seconds to enter it.

3. Hold down (E) for at least 1.5 seconds. Release the button when the second hand points to [READY]. The phone will sound a tone when it establishes a connection with the watch. It may take a few seconds before the tone sounds.

4. Press any button on the watch to stop the tone. You can only stop the tone within the first 30 seconds after it starts.

Here is how you can manage the Bluetooth connection for your CASIO 5631 watch.

Connecting with a Phone:

1. Move the phone close to (within one meter of) the watch.

2. Hold down (C) for at least 1.5 seconds. Release the button when [CNCT] starts to flash. When a connection is established, the second hand will move from [READY] to [CONNECT].

Disconnecting from a Phone:

Pressing any button while connected will terminate the Bluetooth connection and return the watch to the Timekeeping Mode.

Unpairing the Watch from a Phone:

This requires operations on both the G-SHOCK Connected app and the watch.

1. **From G-SHOCK Connected:**

a. If connected, press any button on the watch to terminate the connection.

b. Tap the “G-SHOCK Connected” icon.

c. Perform the operation shown on the phone screen to unpair.

2. **Deleting Pairing Information from the Watch:**

a. Hold down (D) for at least two seconds to enter the Timekeeping Mode.

b. Hold down (A) for at least two seconds until the Home City name appears.

c. Press (D) twice. This causes the seconds to flash.

d. Hold down (B) for at least two seconds. Release it when [CLR] stops flashing. This deletes the pairing information from the watch.

If you purchase a new phone, you need to perform the pairing operation to establish a Bluetooth connection between your new phone and your CASIO 5631 watch. Follow the standard procedure for pairing the watch with a phone.

You can manually check and configure the World Time City and its summer time setting directly on your CASIO 5631.

Checking World Time:

1. Enter the World Time Mode by pressing (D).

2. After the currently selected World Time City name appears, the watch will display the current time in that city. You can press (A) to toggle between viewing the city name and the time.

Setting a World Time City:

1. Enter the World Time Mode.

2. Use (B) and (E) to scroll through and display the city you want to specify.

3. To change the summer time setting, hold down (A) for at least two seconds until [AUTO] starts to flash.

4. Use (E) to cycle through the summer time settings:

• [AUTO]: The watch switches between standard and summer time automatically.

• [OFF]: The watch always indicates standard time.

• [ON]: The watch always indicates summer time.

5. Press (A) to exit the setting screen.

To select UTC (Coordinated Universal Time) as your World Time City, enter the World Time Mode and press (B) and (E) at the same time.

The stopwatch on your CASIO 5631 measures elapsed time in 1/1000-second units for the first hour, and in 1/10-second units after that, up to 24 hours.

Measuring Elapsed Time:

1. Enter the Stopwatch Mode by pressing (D).

2. Use the following button operations:

• (E) Start

• (E) Stop

• (E) Resume

• (E) Stop

3. Press (B) to reset the stopwatch to all zeros.

Measuring a Split Time:

1. Enter the Stopwatch Mode.

2. Use the following operations:

• (E) Start

• (B) Split (displays the elapsed time up to that point)

• (B) Split release (stopwatch continues measuring elapsed time in the background)

• (E) Stop

3. Press (B) to reset.

Timing the First and Second Place Finishers:

1. Enter the Stopwatch Mode.

2. Use the following operations:

• (E) Start

• (B) 1st Finisher (displays the time of the first finisher)

• (E) 2nd Finisher

3. Press (B) to display the time of the second place finisher.

4. Press (B) again to reset the stopwatch to all zeros.

The timer on your CASIO 5631 counts down from a start time you specify. A beeper sounds when the countdown ends.

Setting the Countdown Start Time:

1. Enter the Timer Mode by pressing (D).

2. Hold down (A) for at least two seconds. Release the button when the hour digits start to flash.

3. Use (B) and (E) to change the timer hours setting.

4. Press (D). The minutes digits will flash.

5. Use (B) and (E) to change the minutes setting.

6. Press (D). The seconds digits will flash.

7. Use (B) and (E) to change the seconds setting.

8. Press (A) to exit the setting screen.

Using the Timer:

1. Enter the Timer Mode.

2. Use the following button operations:

• (E) Start

• (E) Pause

• (E) Resume

When the countdown ends (Time up), a beeper will sound for 10 seconds. You can press any button to stop the tone. You can also reset a paused countdown to its start time by pressing (B).

Your CASIO 5631 allows you to set up to five different alarms and an Hourly Time Signal.

Configuring a Daily or One-Time Alarm:

1. Enter the Alarm Mode by pressing (D).

2. Press (E) to scroll through alarm numbers ([AL1] to [AL5]) to select the one you want to configure.

3. Hold down (A) for at least two seconds until the hour digits flash.

4. Use (B) and (E) to change the hour. If using 12-hour timekeeping, [P] indicates p.m.

5. Press (D). The minutes digits will flash.

6. Use (B) and (E) to set the minute.

7. Press (D). The alarm type will flash.

8. Use (E) to specify an alarm type: [DAILY] for an alarm every day, or [1 TIME] for an alarm that sounds only once.

9. Press (A) to exit the setting screen.

Configuring a Schedule Alarm:

1. Follow steps 1-7 above.

2. At step 8, press (E) to display [SCH].

3. Press (A). This displays a screen for setting the year, month, and day.

4. Use (B) and (E) to change the flashing setting (year, month, or day). Use (D) to move the flashing between settings.

5. Press (A) to exit the setting screen.

Enabling/Disabling an Alarm or Hourly Time Signal:

1. Enter the Alarm Mode.

2. Use (E) to select the alarm ([AL1] to [AL5]) or the hourly time signal ([SIG]).

3. Press (B) to toggle the selected item between ON and OFF.

The [ALM] indicator is shown when any alarm is set, and [SIG] is shown when the hourly time signal is on. To stop an alarm while it is sounding, press any button.

When there is no phone communication available, you can adjust the time and date on your CASIO 5631 manually.

1. Enter the Timekeeping Mode.

2. Hold down (A) for at least two seconds until the name of the currently selected Home City is displayed.

3. Use (D) to cycle through the settings in the following sequence: Home City -> Summer time -> Seconds -> Hours -> Minutes -> Year -> Month -> Day -> 12/24-hour timekeeping -> Date display format -> Day of the week language -> Operation tone -> Auto Light -> Illumination duration -> Auto adjust -> Power Saving.

4. When the setting you want to change is flashing, use (B) and (E) to change it.

• **Home City:** Use (B) and (E) to select a city.

• **Summer Time:** Use (E) to select [AUTO], [OFF], or [ON].

• **Seconds:** Pressing (E) will reset them to 00.

• **Other settings:** Use (B) and (E) to adjust.

5. Repeat steps 3 and 4 to configure other settings.

6. Press (A) to exit the setting screen.

You can customize these display settings on your CASIO 5631 through the manual setting mode.

1. Enter the Timekeeping Mode and hold down (A) for at least two seconds until the Home City name is displayed.

To Switch between 12-hour and 24-hour Timekeeping:

1. After entering setting mode, press (D) eight times. [12H] or [24H] will flash.

2. Press (E) to select [12H] or [24H].

3. Press (A) to exit.

To Change the Date Display Format:

1. After entering setting mode, press (D) nine times. The date format screen appears.

2. Press (E) to select a date display format (M: Month, DD: Day).

3. Press (A) to exit.

To Specify the Day of the Week Language:

1. After entering setting mode, press (D) 10 times. The language setting will flash.

2. Press (E) to select a language: [ENG] (English), [ESP] (Spanish), [FRA] (French), [DEU] (German), [ITA] (Italian), [PyC] (Russian).

3. Press (A) to exit the setting screen.

Your CASIO 5631 has an LED light for viewing in the dark, which can be operated manually or automatically.

Illuminating the Display Manually:

Pressing (L) turns on the illumination. It will turn off automatically if an alarm starts to sound.

Configuring the Full Auto Light Setting:

When enabled, face illumination turns on automatically when the watch is positioned at an angle of 40 degrees or more.

1. Enter the Timekeeping Mode.

2. Hold down (A) for at least two seconds until the Home City is displayed.

3. Press (D) 12 times to display [AUTO].

4. Press (E) to toggle Full Auto Light between enabled ([ON]) and disabled ([OFF]).

5. Press (A) to exit the setting screen.

Specifying the Illumination Duration:

You can select an illumination duration of 1.5 or 3 seconds.

1. Enter the Timekeeping Mode.

2. Hold down (A) for at least two seconds until the Home City is displayed.

3. Press (D) 13 times to display [LIGHT].

4. Press (E) to select an illumination duration: [1] for 1.5 seconds, or [3] for 3 seconds.

5. Press (A) to exit the setting screen.

Strong magnetism or impact can cause the time indicated by the analog hands to become different from the digital display. If this occurs, you need to perform a hand alignment adjustment on your CASIO 5631.

1. Enter the Timekeeping Mode.

2. Hold down (A) for at least 5 seconds. Release the button when [00] starts to flash. This enables adjustment of the second hand.

3. If the second hand is not aligned with 12 o’clock, use (B) and (E) to align it.

4. Press (D). This enables adjustment of the mode hand.

5. If the mode hand is not aligned with 12 o’clock, use (B) and (E) to align it.

6. Press (D). This enables adjustment of the hour and minute hands.

7. If the hour and minute hands are not at 12 o’clock, use (B) and (E) to align them.

8. Press (A) to exit the setting screen.

You can turn the tone that sounds when you press a button on or off.

1. Enter the Timekeeping Mode.

2. Hold down (A) for at least two seconds until the currently selected Home City is displayed.

3. Press (D) 11 times. This will cause [KEY] or [MUTE] to flash on the display.

4. Press (E) to select [KEY] (operation tone enabled) or [MUTE] (operation tone muted).

5. Press (A) to exit the setting screen.

Note that alarm and timer tones will still sound even while the button operation tone is muted.

This procedure will return the Watch Settings, Stopwatch, Timer, and Alarm settings to their initial factory defaults. It will also delete pairing information and unpair the watch from any phone.

1. Enter the Timekeeping Mode.

2. Hold down (A) for at least two seconds until the name of the currently selected Home City is displayed.

3. Press (D) twice. This causes the seconds to flash.

4. Hold down (B) for at least five seconds. Release it when [RESET] stops flashing.

5. Press (A) to exit the setting screen.

To easily change the day and time settings on your CASIO 5631 when moving to a new time zone, follow this procedure:

Before Boarding:

1. Configure the watch’s World Time to the current time at your destination. You can do this using either the G-SHOCK Connected app or the watch’s manual operations.

2. Disable auto time adjustment, especially for air travel.

After Arriving:

1. Swap your origin time zone time (Home Time) with the destination time zone time (World Time). You can do this by entering World Time mode and pressing (A) and (L) at the same time.

2. Enable auto time adjustment again.

3. Adjust the time setting by triggering an immediate time adjustment connection with your phone.

The following table lists the cities and their UTC offsets available on the CASIO 5631. This information is current as of January 2020.

* Note: The watch uses an offset of +8.5 for PYONGYANG.

The CASIO 5631 emits radio waves whenever the second hand is pointing to [READY] or [CONNECT], and during automatic time adjustments. When in a hospital, on an aircraft, or in any area where radio wave use is not allowed, use the following operations to stop radio wave generation.

• **Stopping an Active Radio Wave Emission:** Press any button to terminate an active Bluetooth connection. This will stop the current emission.

• **Disabling Auto Time Adjustment:** To prevent the watch from connecting automatically, you must disable the auto time adjustment feature. You can do this through the watch’s setting mode or by configuring settings in the G-SHOCK Connected app.

If you have never been able to establish a pairing connection between your CASIO 5631 watch and phone, please check the following:

• **Supported Phone Model:** Check if your phone model and its operating system are supported by the watch.

• **G-SHOCK Connected App:** Ensure you have installed the “G-SHOCK Connected” app on your phone. The app is required to connect with the watch.

• **Bluetooth Settings:** Check that your phone’s Bluetooth settings are configured correctly. For iPhone users, ensure Bluetooth is On (“Settings” -> “Bluetooth”) and Bluetooth Sharing is enabled for the app (“Settings” -> “Privacy” -> “Bluetooth Sharing” -> “G-SHOCK Connected”). For Android users, enable Bluetooth.

• **BT Smart (Other Phones):** Some phones may require BT Smart to be disabled to use G-SHOCK Connected. Check your phone’s documentation for details. (Example path: “Menu” -> “Settings” -> “Bluetooth” -> “Menu” -> “BT Smart settings” -> “Disable”).

If you are having trouble reconnecting your CASIO 5631 with your phone, try these troubleshooting steps:

• **Check if G-SHOCK Connected is running:** The watch cannot reconnect unless the G-SHOCK Connected app is running on your phone. On your phone’s Home Screen, tap the “G-SHOCK Connected” icon to launch it. Then, on the watch, hold down (C) for at least 1.5 seconds to initiate a connection.

• **Restart your phone:** Try turning your phone off and then back on again. After it restarts, tap the “G-SHOCK Connected” icon. Then, on the watch, hold down (C) for at least 1.5 seconds.

• **Disable Airplane Mode:** Connection is not possible while the phone is in Airplane Mode. Disable Airplane Mode, then go to your phone’s Home Screen, tap the “G-SHOCK Connected” icon, and try connecting again by holding down (C) on the watch.

• **Check Bluetooth settings:** If you changed your phone’s Bluetooth from enabled to disabled, you will not be able to connect. Re-enable Bluetooth on your phone, open the G-SHOCK Connected app, and then try connecting with the watch.

If basic steps like restarting the phone and checking app status do not work, you may need to re-pair the watch and phone. This involves deleting the existing pairing information first.

1. **Delete Pairing Information:** First, delete the pairing information from the G-SHOCK Connected app. Then, delete the pairing information from the watch itself using the following steps:

a. Hold down (D) for at least two seconds to enter the Timekeeping Mode.

b. Hold down (A) for at least two seconds until the name of the currently selected Home City is displayed.

c. Press (D) twice to cause the seconds digits to flash.

d. Hold down (B) for at least two seconds. Release it when [CLR] stops flashing. This deletes the pairing information from the watch.

2. **Re-pair the watch and phone:** After deleting the old information, perform the pairing procedure again as if it were the first time.

If the automatic time adjustment on your CASIO 5631 is not performed at the scheduled times (around 12:30 a.m., 6:30 a.m., 12:30 p.m., and 6:30 p.m.), check for the following conditions:

• **Recent Manual Adjustment or Time Swap:** Auto time adjustment is not performed for 24 hours after swapping the Home Time and World Time, or after the time setting is adjusted manually on the watch. It will resume 24 hours after either of these operations.

• **Stopwatch or Timer in Use:** Auto time adjustment will not start if a stopwatch or timer operation is in progress. Stop the ongoing operation to allow for time adjustment.

• **Auto Time Adjustment Disabled:** The feature will not work unless it is enabled. Ensure auto time adjustment is turned on in the watch settings.

If an alarm or the hourly time signal on your CASIO 5631 does not sound, check the following:

• **Is the watch’s battery charged?** The alarm sound is muted when battery power is low. Keep the watch exposed to light until it recharges sufficiently.

• **Is the alarm/signal enabled?** Make sure the specific alarm and/or the hourly time signal is enabled (set to ON) in the Alarm Mode. The [ALM] indicator should be displayed for an active alarm, and the [SIG] indicator for the hourly time signal.