Operation Guide 4791 - Casio LWQ-160DE Service Manual & Parts List

MO0705-EA
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to read this manual carefully.
If all the analog hands are stopped at 12 o'clock...
General Guide
• This watch is designed so the function of a button is executed when you release the
button, not when you press it.
• Use A and B to change from mode to mode as shown below.
Manual Receive
Hold down A for about two
seconds.
Radio-controlled Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly.
The time calibration signal includes both Standard Time and Daylight Saving Time
(summer time) data.
• This watch switches automatically between Standard Time and Daylight Saving Time
in accordance with the time calibration signal it receives. There is no indicator
showing whether the time currently shown by the watch is Standard Time or Daylight
Saving Time.
• This watch is designed to pick up the time calibration signal transmitted in Germany
(Mainflingen) and England (Rugby).
• See the information under "Signal Reception Troubleshooting" if you experience
problems with time calibration signal reception.
Current Time Setting
This watch adjusts its time setting automatically in accordance with a time calibration
signal. You also can perform a manual procedure to set the time, when necessary.
• The first thing you should do after purchasing this watch is to specify a GMT
differential, which is the time differential between GMT and the location where
you normally will use the watch. For more information, see "To specify a GMT
differential" below.
• When using the watch outside the range of the Germany and England time signal
transmitters, you have to adjust the current time setting manually as required. See
"Timekeeping" for more information about manual time settings.
To specify a GMT differential
GMT GMT
differential differential
value (+0) value (+1)
GMT
differential
value (+2)
• Normally, your watch should show the correct time as soon as you select a GMT
differential. If it does not, it should adjust automatically after the next auto receive
operation (in the middle of the night). You can also perform manual receive or you
can set the time manually.
• Even if the time calibration signal is received correctly, there are some times when
the analog hands may not indicate the correct time. If this happens, use the
procedures under "Adjusting the Home Positions" to check the home positions of the
hands, and make adjustments as required.
• The watch will receive the time calibration signal automatically from the applicable
transmitter (in the middle of the night) and update its settings accordingly. For
information about the relationship between GMT differential values and transmitters,
see "Transmitters".
• See the maps under "Reception Ranges" for information about the reception ranges
of the watch.
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration signal:
auto receive and manual receive.
• Auto Receive
With auto receive, the watch receives the time calibration signal automatically up to six
times a day. When any auto receive is successful, the remaining auto receive
operations are not performed. For more information, see "About Auto Receive".
• Manual Receive
Manual receive lets you start a time calibration receive operation with the press of a
button. For more information, see "To perform manual receive".

Operation Guide 4791

To conserve battery power, the watch is shipped from the
factory with its functions disabled. All the watch's analog
hands are stopped at 12 o'clock. To activate the watch's
functions, press either of the two buttons. This will cause
the analog hands to move to the current time setting.
Timekeeping Mode
Press any
button.
Hold down A and B
for about five seconds.
Press A twice.
1. In the Timekeeping Mode, hold down B for about five
seconds until the second hand moves to the currently
selected GMT differential setting and stops. This is the
setting mode.
• The GMT differential value indicates the time
difference in hours from Greenwich Mean Time.
2. Use A to move the second hand to the GMT
differential setting you want to use.
GMT +0 (12 o'clock): London
GMT +1 (1 o'clock): Paris, Berlin, Milan, Rome,
Amsterdam, Hamburg, Frankfurt, Vienna,
Barcelona, Madrid
GMT +2 (2 o'clock): Athens
3. Press B to exit the setting mode.
• The watch also will return to the Timekeeping Mode if
you do not perform any operation for about two or three
minutes.
About This Manual
Minute hand
Hour hand
Second hand
Receive Result Mode
Press A.
Important!
• When getting ready to receive the time calibration signal, position the watch as
shown in the nearby illustration, with its 12 o'clock side facing towards a window.
Make sure there are no metal objects nearby.
• Make sure the watch is facing the right way.
• Proper signal reception can be difficult or even impossible under the conditions listed
below.
Inside or
among
buildings
• Signal reception normally is better at night than during the day.
• Time calibration signal reception takes from two to seven minutes, but in some
cases it can take as long as 14 minutes. Take care that you do not perform any
button operations or move the watch during this time.
• When within range of the applicable transmitter, this watch can receive either the
Germany (Mainflingen) or England (Rugby) time calibration signals. See
"Transmitters" for more information.
Reception Ranges
1,500 kilometers
Rugby
500 kilometers
• At distances further than about 500 kilometers from a transmitter, signal reception
may not be possible during certain times of year or times of day. Radio interference
also may cause problems with reception.
• Even when the watch is within the reception range of the transmitter, signal
reception will be impossible if the signal is blocked by mountains or other geological
formations between the watch and signal source.
• Signal reception is affected by weather, atmospheric conditions, and seasonal
changes.
• Button operations are indicated using the letters shown
in the illustration.
• Each section of this manual provides you with the
information you need to perform operations in each
mode. Further details and technical information can be
found in the "Reference" section.
12 o'clock
or
Inside a Near a Near high-
Near
vehicle household construction tension
appliances, site, airport, or power lines
office other sources
equipment, of electrical
or a mobile noise
phone
Home Position
Adjustment Mode
Among or
behind
mountains
Mainflingen
1