Operation Guide 5230

3.Press D to toggle the illumination duration between three seconds (LT3 displayed) and 1.5 seconds (LT1 displayed).

4.After all of the settings are the way you want, press A to exit the setting mode.

ξExiting a setting mode will normally cause the hands to return to regular timekeeping automatically. However, if you manually move the hands (page E-79) and then enter a setting mode, they will not return to regular timekeeping automatically when you exit the setting mode. In this case, you will need to return the hands to their normal positions manually (page E-80).

About the Auto Light Switch

 

Turning on the auto light switch causes illumination

 

to turn on, whenever you position your wrist as

More than

described below in any mode.

40°

Moving the watch to a position that is parallel to

 

the ground and then tilting it towards you more

Wear the watch on the

than 40 degrees causes illumination to turn on.

 

outside of your wrist

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Warning!

ξAlways make sure you are in a safe place whenever you are reading the face of the watch using the auto light switch. Be especially careful when running or engaged in any other activity that can result in accident or injury. Also take care that sudden illumination by the auto light switch does not startle or distract others around you.

ξWhen you are wearing the watch, make sure that its auto light switch 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 distraction, which can result in a traffic accident and serious personal injury.

Note

ξThis watch features a “LED”, so the auto light switch operates only when available light is below a certain level. It does not illuminate the face under bright light.

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ξThe auto light switch is always disabled, regardless of its on/off setting, when any one of the following conditions exists.

While an alarm is sounding

While a receive operation is in progress

To turn the auto light switch on and off

In the Timekeeping Mode, hold down B for about three seconds to toggle the auto light switch on (indicator displayed in the right digital dial) and off (indicator not displayed).

ξ The auto light switch on indicator appears in all modes while the auto light switch is turned on.

ξ The auto light switch turns off automatically whenever battery power drops to Level 4 (page E-15).

Auto light switch on indicator

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Illumination Precautions

ξLED panel that provides illumination loses power after very long use.

ξIllumination may be hard to see when viewed under direct sunlight.

ξIllumination turns off automatically whenever an alarm sounds.

ξFrequent use of illumination runs down the battery.

Auto light switch precautions

ξWearing the watch on the inside of your wrist, movement of your arm, or vibration of your arm can cause frequent activation of the auto light switch and illumination of the face. To avoid running down the battery, turn off the auto light switch whenever engaging in activities that might cause frequent illumination of the face.

ξNote that wearing the watch under your sleeve while the auto light switch is turned on can cause frequent illumination of the face and can run down the battery.

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ξIllumination may not turn on if the face of the watch is more than

15 degrees above or below parallel. Make sure that the back of your hand is parallel to the ground.

ξ Illumination turns off after the preset illumination duration (page E-69), even if you keep the watch pointed towards your face.

ξStatic electricity or magnetic force can interfere with proper operation of the auto light switch. If illumination does not turn on, try moving the watch back to the starting position (parallel with the ground) and then tilt it back towards your face 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.

ξYou may notice a very faint clicking sound coming from the watch when it is shaken back and forth. This sound is caused by mechanical operation of the auto light switch, and does not indicate a problem with the watch.

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Hand Home Position Adjustment

Strong magnetism or impact can cause the hands of the watch to be off, even if the watch is able to perform the signal receive operation.

ξHome position adjustment is not necessary when the analog time and digital time are the same time in the Timekeeping Mode.

To adjust home positions manually

1.In the Timekeeping Mode, hold down A and keep it depressed for about five seconds until H.SET appears in the right digital dial.

ξThe hour and minute hands should all move to 12 o’clock, which is their home position.

ξThough ADJ will appear in the right digital dial about two seconds after you hold down A, do not release the button yet. Keep it depressed until H.SET appears. When H.SET appears in the right digital dial, release the A button. This will cause the hour and minute hands to move to 12 o’clock.

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ξThe watch will return to regular timekeeping automatically if you do not perform any operation for about two or three minutes. Any changes you have made to settings up to that point will be saved.

If the hour and minute hands are all at 12 o’clock, which is their home position, jump to step 3.

2.Use D (+) and B (–) to adjust the hour and minute hand positions.

ξHolding down either button will cause the hand to move at high speed. Once started, high-speed hand movement will continue even if you release the button. To stop high-speed hand movement, press any button.

ξHigh-speed hand movement started with the D (+) button will stop automatically after 12 revolutions of the minute hand. If started with the B (–) button, it will stop after one revolution of the minute hand.

3.Press A to exit home position correction and return to regular timekeeping.

Note

After performing home position adjustment, enter the Timekeeping Mode and check to make sure that the analog hands and the digital dial indicate the same time. If they do not, perform home position adjustment again.

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Moving the Hands for Easy Viewing of the Digital Dials

You can use the procedure below to move the analog hands in order to better view a digital dial.

Note

ξThe analog hands will not move while battery power is low.

ξTime calibration signal reception is disabled while the hands are in positions to allow easier viewing of the digital dials (page E-79).

To move the hands to view a digital dial

Hold down C for about two seconds until HAND appears.

Releasing C will cause the HANDS indicator to flash and the hands will move away from the digital dial.

Hold down C.

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