Casio QW-3390 Troubleshooting guide

SERVICE MANUAL
& PARTS LIST
(WITHOUT PRICE)
QW-3390
MODULE NO.
R
REF. NO. S/M-891
APR. 2005
BGT-3010
Ver.1 : May. 2006

CONTENTS
Page
1. SPECIFICATIONS: MODULE QW-3390 .................................................... 1
2. OPERATION CHART: MODULE QW-3390 ............................................... 2
3. DRAWINGS: MODULE QW-3390
3-1. LCD DIAGRAM ............................................................................................. 8
3-2. CIRCUIT DIAGRAM ...................................................................................... 9
3-3. CHECKING TERMINALS AND COMPONENTS ......................................... 10
4. EXPLODED VIEW: MODULE QW-3390 ................................................... 11
5. PARTS LIST: MODULE QW-3390 ............................................................ 12
6. PRECAUTIONS FOR REPAIR: MODULE QW-3390
6-1. AC (ALL CLEAR) AND REMOVING OF MODULE .....................................13
6-2. ACCURACY CHECKING .............................................................................14
6-3. TIME CALIBRATION SIGNAL TEST MODE ...............................................14
7. TROUBLESHOOTING: MODULE QW-3390............................................. 15

— 1 —
1. SPECIFICATIONS: MODULE QW-3390
Battery CR1616
Battery life Approx. 2 years
Current consumption 0.5 µA maximum
Alarm system Piezo plate on Cover/Back
Accuracy ±15 sec./month
Accuracy setting system Trimmer capacitor
Accuracy checking See page 14
Functions • Time calibration signal reception
Auto receive
Manual receive
Last date/time received display
• Time Calibration Signal
Receivable Time Calibration Signals
Fukushima, Japan (Call Sign: JJY, Frequency: 40kHz)
Fukuoka/Saga, Japan (Call Sign: JJY, Frequency: 60kHz)
Fort Collins, Colorado (Call Sign: WWVB, Frequency: 60kHz)
• World Time
29 time zones (30 cities), daylight saving time on/off
• 1/100-sec. stopwatch
Measuring capacity: 59’59.99"
Measuring modes: Split time
• Daily alarms
1 independent daily alarms, hourly time signal
• LED light (with full auto light function)
• Auto-calendar
• 12/24-hour format
• Regular timekeeping: Hour, minutes, seconds, pm, month, date, day
Item Detail

— 2 —
2. OPERATION CHART: MODULE QW-3390
Each press of the CC
CC
Cbutton sounds a confirmation tone and cycles through available modes in the sequence shown below.
•The display will automatically revert to the Timekeeping screen if you leave the Alarm or Hand Setting screen displayed without performing
any operation for about two or three minutes.
World Time Mode Alarm Mode
Hand Setting Mode Stopwatch Mode
Current Time in Selected City
City Code Alarm
•
Alarm off
Hourly Time Signal
•
Hourly Time Signal off
Elapsed Time
Mode Indicator
Mode Indicator
Timekeeping Mode
(Light)(Screen Switching)
(Mode switching)
Month.Day Day of the Week
Seconds
Hour
PM indicator (no indicator for AM)
Minutes
Seconds ScreenCurrent Time Screen
Calendar Screen
2-second interval
Days of the Week SUN: Sunday MON: Monday TUE: Tuesday WED: Wednesday THU: Thursday FRI: Friday SAT: Saturday
Button Button Button Button
Changing Display Screen Contents Each press of the button cycles display contents in the following sequence: Calendar Screen Seconds Screen
Current Time Screen.
Modes and Display Screens
What is a radio-controlled watch? Your radio-controlled watch is designed to receive a time calibration signal that contains standard time data, and adjust its current time setting accordingly.
Signal data
Cesium
atomic
clock
Transmitter
Internally
Decode
Watch
Time data
Signal is received using built-in antenna.
Watch decodes received data and converts it to time data. Time is adjusted according to time data.
Long- wave time calibration signal
After the watch receives the Standard Time signal, it performs internal calculations to determine the current time. Because of this, there may be an error of up to one second in the displayed time.
Calibration Signal •The Japanese calibration signal (Call Sign: JJY) is maintained by
the National Institute of Information and Communications Technology (NICT). It is a long wave signal transmitted 24 hours a day from the Mt. Otakadoya transmitter (40kHz) located in Tamura-gun, Fukushima Prefecture, and from the Mt. Hagane transmitter (60kHz) located on the border between Saga Prefecture and Fukuoka Prefecture.
•The U.S. calibration signal (Call Sign: WWVB) is transmitted by
the National Institute of Standards and technology from Fort Collins, Colorado.
Note that transmission of the standard wave may be interrupted occasionally due to maintenance, lightening, etc.
How a Radio-controlled Watch Works
Reception Range This watch is designed to receive the standard time calibration signal of Japan (JJY) or of the United States (WWVB). The signal that is received depends on the current Home Time setting. •For information about selecting a Home City, see “Configuring Home Time Settings”. For information about city codes, see the “World Time
City Code List”.
Home City
TYO
LAX, DEN, CHI, NYC
Transmitter
Either the Mt. Otakadoya signal (40kHz) or the Mt. Hagane signal (60kHz) Fort Collins, Colorado signal
1000km
Mt. Hagane
(60kHz)
Mt. Otakadoya
(40kHz)
500km
1000km
500km
Japan Transmitter Locations
•Under optimum conditions, the calibration signal should be
receivable up to 1,000 kilometers from the transmitter. Note that the wave is relatively weak at distances greater than 500km, so reception may be poor at long distances.
U.S. Transmitter Location
3000km
1000km
Fort Collins
•Under optimum conditions, the calibration signal should be
receivable up to 3,000 kilometers from the transmitter. Note that the wave is relatively weak at distances greater than 1,000km, so reception may be poor at long distances.
•Geographic contours, nearby buildings, seasonal conditions, the time of day, can even make reception impossible even when you are within
range of the transmitter.
•Best reception is possible late at night.

—3 —
Location Reception is difficult and may even be impossible in the locations described below. Avoid such locations when performing signal reception. •You should think of your watch operating like a radio or TV when it
is receiving the calibration signal.
If you are experiencing problems with reception, move away from the types of locations described above to a location with better reception, and try again.
Near high-voltage lines
Among or near buildings
Receiving the Calibration Signal There are two methods you can use to receive the time calibration signal.
•Auto receive (Reception is performed automatically at
midnight, 2:00, 3:00 and 4:00 each morning.)
•
Manual receive (You initiate reception using a button operation.)
•If reception is not successful for any of the normal auto receive
operations shown above, auto receive is performed one more time at 5:00 a.m.
•The watch is set up for auto receive at the factory, so all you need to
do is to place it in a location that allows good reception each night.
■
To position the watch for optimum reception
Remove the watch from your wrist and place it somewhere so its top (12 o’clock side, where the antenna is located) is facing approximately in the direction of the signal transmitter. Keep the watch away from metal objects.
Resin band
Metal band
•Orienting the watch so it is sideways to the transmitter makes it
more difficult to receive the signal.
•Do not move the watch while it is receiving the calibration signal.
Near mountains
Inside a vehicle
(automobile, train, plane, etc.)
In a location where there is radio interference (construction site, airport, etc.)
Next to a household appliance or office equipment (TV, speaker, fax, computer, cell phone, etc.)
■ Time Required for Reception A calibration signal receive operation takes anywhere from about two to six minutes. •Note that when “AUTO”(Auto Select) is specified as the
transmitter selection mode, signal reception can take up to 12 minutes.
•See “Configuring Auto Receive Settings”for more information. ■ To perform manual receive
In the Timekeeping Mode, hold down the DD
DD
Dbutton for about
two seconds.
•The watch will beep and
reception will start. An indicator will appear on the display to indicate reception conditions.
■ To interrupt reception
Press the DD
DD
Dbutton.
•All other buttons besides Dare disabled during signal reception.
When reception is successful The watch terminates reception and adjusts the current time. Next it beeps and then displays the date and time that the adjustment was performed. Reception Error (ERR Indicator) The watch does not adjust its current time setting, and displays “ERR”when signal reception is unsuccessful for some reason.
•The watch will return to the Timekeeping Mode automatically if
you do not perform any operation for about one or two minutes.
■ Receive Indicator The receive indicator cycles from “Unstable”through “Stable”as shown below while reception is in progress. How far it cycles depends on the signal strength. Keep the watch in a location where reception is stable while reception is in progress.
Unstable Stable
•Even under optimum reception conditions, it can take about 10
seconds for reception to stabilize.
•Use the receive indicator to check reception status and to
determine the best location for signal reception.
•Note that weather, the time of day, surroundings, and other
factors can all affect reception.
Receive Indicator
Configuring Auto Receive Settings Use the procedure below to turn auto receive of the time calibration signal on or off. When TYO (Tokyo) is selected as your Home City, you can also specify the transmitter selection mode, which controls which Japanese transmitter signal should be used for time calibration. •For information about selecting you Home City, see “Configuring
Home Time Settings”.
•The initial factory default settings for auto receive are Home City =
TYO (Tokyo); Auto Receive = On; Transmitter = AUTO
•The following procedure can be performed only when TYO, LAX,
DEN, CHI, or NYC is selected as the Home City.
■ To configure auto receive settings 1. In the Timekeeping Mode,
press the DD
DD
Dbutton.
•This will cause the display to
start cycling through the last reception date and time screens.
•The watch will return to the
Timekeeping Mode automatically if you do not perform any operation for about one or two minutes.
2. Hold down the AA
AA
Abutton
for about two seconds.
•This will cause the currently
auto receive setting to flash on the display.
■ To view the last reception date and time
In the Timekeeping Mode, press the DD
DD
Dbutton.
•This causes the display to start cycling through the “”
screen, last reception date screen, and last reception time screen at two-second intervals.
•To return to the Timekeeping Mode, press theDbutton again. •The watch will return to the Timekeeping Mode automatically if
you do not perform any operation for about one or two minutes.
Last Reception Date
Last Reception Time
Auto Receive Settings when the Home City is TYO
•AUTO Auto receive turned on with automatic selection of either the Mt. Otakadoya signal (40kHz) or the Mt. Hagane signal (60kHz), whichever is strongest. •40
Auto receive turned on for the Mt. Otakadoya signal (40kHz). •60 Auto receive turned on for the Mt. Hagane signal (60kHz). •OFF Auto receive turned off.
Auto Receive Settings when the Home City is NYC, CHI, DEN, or LAX
•ON
Auto receive turned on for the Ft. Collins, Colorado signal. •OFF Auto receive turned off.
3. Press the DD
DD
Dbutton to
cycle through the available auto receive settings.
4. When the setting is the
way you want, press the
AA AA
Abutton.
•This will exit the setting
screen and return to the last reception date and time screens.
•To return to the Timekeeping
Mode, press the Dbutton
again.
•The watch will return to the
Timekeeping Mode automatically if you do not perform any operation for about one or two minutes.

—4 —
(3 times) Seconds
Calibration Signal Reception Precautions •Auto reception can be performed while the watch is in the
Timekeeping Mode or World Time Mode only.
•When a time calibration signal is received, the watch corrects its
digital time setting first, and then adjusts the analog time setting accordingly. In order to ensure that the analog time matches the digital time, make sure you adjust the analog time to match the digital time before signal reception is performed.
•Pressing any button while auto reception is in progress will cause
the watch to beep and then exit the receive operation.
•Make sure you are within the range of the calibration signal
transmitter before performing the reception operation. Remember that geographic contours, nearby buildings, seasonal conditions, the time of day, can even make reception impossible even when you are within range of the transmitter.
•Proper reception may be impossible if there is something blocking
the signal. If reception is unsuccessful, try again.
•This watch is designed to adjust its current time setting in
accordance with the calibration signal transmitted in Japan and the United States only. It operates like a standard (non-radio controlled) watch outside of the range of the receivable time calibration signal transmitters.
•When the watch is unable to adjust its time signal using the
calibration signal for some reason, timekeeping accuracy is within ±15 seconds per month.
•Strong electrostatic charge can cause timekeeping error. •Signal reception is cancelled if an alarm starts to sound while it is
being performed.
•The watch’s calendar shows dates up to the year 2099.
Attempting a receive operation after that causes an error.
Troubleshooting The watch cannot receive the time calibration signal. •Is the signal being transmitted?
Though the Japanese calibration signal (Call Sign: JJY) is continually transmitted by the National Institute of Information and Communications Technology (NICT) in theory, it may sometimes be interrupted for periodic maintenance work, or because of lightening or other problems.
•Are you within the reception range of a transmitter?
See “Reception Range”for information about areas where the watch can receive the signal.
•Is there something in the immediate area that may be interfering
with reception? Even if you are within the reception range of a transmitter, objects between you and the transmitter or electrical noise can interfere with reception. Avoid such areas during signal reception. See “Location”for more information.
•Do you have the correct Home City code selected?
Remember that auto receive is not performed unless TYO (Japan), NYC (New York), CHI (Chicago), DEN (Denver), or LAX
(Los Angeles) is selected as the Home City. Select the correct Home City code using the procedure under “To configure home time settings”.
•Is auto receive turned off (OFF)?
Use the procedure under “Configuring Auto Receive Settings”to turn on auto receive.
•Is the watch in any mode other than the Timekeeping Mode or
World Time Mode during the auto receive times (midnight, 2:00 a.m., 3:00 a.m., 4:00 a.m., and 5:00 a.m.)? Auto receive is performed only when the watch is in the Timekeeping Mode or World Time Mode. It is not performed if the watch is in any other mode.
Time calibration signal reception is successful, but the hourly
time signal and current time are slightly off. •After the watch receives the time calibration signal, it performs an
internal decoding process before updating its time setting. Because of this, the time setting may be slightly off (within one second).
Time calibration signal reception is successful, but the current time is one hour fast. •Do you have summer time (DST) turned on (ON)?
Use the procedure under “To configure home time settings”to turn
off summer time.
Time calibration signal reception is successful, but the current time setting is wrong. •Is the correct city code selected for your Home City?
If you are in Japan, you should have TYO selected for your Home
City. For other areas, select the correct Home City code using the procedure under “To configure home time settings”.
The auto receive ON/OFF settings don’t appear when
configuring auto receive settings. •Auto receive ON/OFF settings do not appear on the display
unless TYO (Japan), NYC (New York), CHI (Chicago), DEN
(Denver), or LAX (Los Angeles) is selected as the Home City.
Use the procedure under “To configure home time settings”to
select your correct Home City.
The auto receive AUTO, 40, and 60 settings do not appear when configuring auto receive settings. •The AT, JP40, and JP60 transmitter selection mode options are
available only when TYO (Tokyo) is selected as the Home City code.
Use the procedure under “To configure home time settings”to
select your correct Home City.
What time is auto receive performed? •Auto receive is performed in the middle of the night, when
reception conditions are best.
Before going to bed at night, place the watch near a window, with
its 12 o’clock position facing in the general direction of the
transmitter.
How can I perform manual receive? •Hold down the lower right Dbutton for about two seconds.
The watch will beep to indicate that manual receive has started.
Place it near a window, with its 12 o’clock position facing in the
general direction of the transmitter.
How can I view the last reception date and time? •In the Timekeeping Mode, press the lower right Dbutton.
This will display the date and time that the time calibration signal
was last received successfully. To return to the Timekeeping Mode, press the Dbutton again.
Pressing the Bbutton in any mode (except when a flashing setting screen is displayed) illuminates the face of the watch for easy reading in the dark. •You can use the procedure under
“To specify the illumination duration”to configure the illumination duration as approximately 1.5 seconds or 3 seconds.
Important! •The light may be difficult to see if you turn it on under bright
sunlight.
•If you press a button that sounds a confirmation tone to sound or
if an alarm operation starts while the face is illuminated, illumination will turn off.
•Illumination is disabled while a manual time calibration signal
receive operation is in progress.
■ To specify the illumination duration 1.
In the Timekeeping Mode, hold down the AA
AA
Abutton
for about two seconds.
•This will cause your city code
to flash on the display.
Face Illumination
City Code
•Check the auto signal reception setting whenever you have
problems with signal reception or when the time setting produced by signal reception is incorrect. •The initial factory default configuration of the reception settings
are shown below. You do not need to change these settings if you use the watch in Japan.
Auto Receive Home City
Summer Time
Tokyo Auto Japan transmitter select (40kHz/ 60kHz) Auto switching in accordance with signal data
2.
Press the CC
CC
Cbutton three
times to display the flashing seconds count.
3.
Press the BB
BB
Bbutton to
toggle the illumination duration between about 1.5 seconds ( indicator)
and 3 seconds ( indicator).
4.
After the setting is the way you want, press the AA
AA
A
button to exit the setting screen.
•The watch will also exit the setting screen automatically if you
do not perform any operation for about two or three minutes.

—5 —
World time lets you display the current time in any one of 30 cities (29 time zones) around the world. •When you enter the World Time Mode, the screen for the city that
was displayed when you last exited the mode appears first.
•The seconds count in the World Time Mode is linked with the
Timekeeping Mode seconds count.
•The same 12-hour/24-hour format you select for the Timekeeping
Mode time is also applied in the World Time Mode.
Important! If the World Time Mode time is incorrect, correct the setting of the current time or change to another Home City in the Timekeeping Mode. •For information about configuring timekeeping settings, see “To
configure home time settings”.
■ To search for a city code
In the World Time Mode, press the DD
DD
Dbutton.
•This scrolls westward through the available city codes. Ashort
while after a city code appears, the display will change to show the current time in that city.
•Holding down the Dbutton scrolls at high speed.
(Scrolls westward)
City Code
Current Time in Selected City
•Pressing the Abutton in the World Time Mode displays the city
code of the currently selected city for about two seconds.
•Selecting a time zone that does not have a city code displays the
GMT time differential for that zone.
World Time Mode
Using Summer Time (DST) Summer time, or Daylight Saving Time (DST) as is it is known in some countries, calls for setting clocks ahead one hour during the summer season. Note that the use of summer time depends on the country and even the local area. ■ To turn summer time on or off 1.
In the World Time Mode, use the DD
DD
Dbutton to
display the screen for the city code whose summer time setting you want to change.
2.
Hold down the AA
AA
Abutton
for about two seconds.
•This toggles summer time on
and off.
•The “DST”indicator appears
on the display and timekeeping is advanced by one hour when summer time is turned on.
•You can turn summer time on
or off independently for each World Time Mode city. Note, however, that you cannot turn on summer time for the “GMT”
city code.
World Time City Code List
City
Code City Name
–––
HNL
ANC
LAX
DEN
CHI
NYC CCS
RIO
––– –––
GMT
LON
PAR
BER
ATH
CAI
Honolulu
Anchorage
Los Angeles
Denver
Chicago
New York
Caracas
Rio de Janeiro
Greenwich Mean Time
London
Paris
Berlin
Athens
Cairo
–11
–10
–9 –8 –7 –6 –5 –4 –3 –2 –1
+0 +0 +1 +1 +2 +2
GMT
Differential
City
Code City Name
GMT
Differential
JRS JED
THR
DXB
KBL
KHI
DEL
DAC
RGN
BKK
HKG
SEL
TYO
ADL
SYD
NOU
WLG
Jerusalem
Jeddah
Teheran
Dubai
Kabul
Karachi
Delhi
Dakar
Yangon
Bangkok
Hong Kong
Seoul
Tokyo
Adelaide
Sydney
Noumea
Wellington
+2 +3
+3.5
+4
+4.5
+5
+5.5
+6
+6.5
+7 +8 +9 +9
+9.5
+10
+11
+12
•The contents of the above table are current as of December 2003. •Time differentials in the above table are in accordance with
Universal Time Coordinated (UTC).
DST Indicator
The stopwatch measures elapsed time in units of 1/100 second up to 59 minutes, 59.99 seconds (60 minutes total). When the maximum limit is reached, the elapsed time automatically returns to zero and timing continues from there. ■ To perform elapsed time measurement
In the Stopwatch Mode, press the DD
DD
Dbutton to start and
stop elapsed time measurement.
(Split/Reset)
(Start/Stop)
■ Stopwatch Mode Display Screens •Elapsed Time Screen The display shows the minutes and seconds.
Minutes Seconds
•Paused Elapsed Time Measurement Screen When elapsed time measurement is paused, the display alternates between a minute/second screen and a 1/100 second screen at 2- second intervals.
Minutes Seconds
2-second interval
1/100 Second
Stopwatch Mode
■ Elapsed Time Measurement Start Stop Reset Pressing the Abutton while timing is stopped resets the stopwatch to all zeros. Cumulative Time Measurement Pressing the Dbutton to restart the stopwatch without resetting it to all zeros causes the elapsed time measurement to resume from where it was last stopped. ■ Split Time Measurement Start Record Split Clear Split Stop Reset Pressing the Abutton while timing is being performed displays the split time screen, but timing continues internally.
•Changing to another mode while a split time is displayed clears the split time operation.
■ 1st and 2nd Place Finishers Start 1st Finish
(Displays time of 1st finisher.) 2nd finish Displays time of 2nd finisher. Reset
Pressing the Dbutton while the split time screen is on the display stops elapsed time measurement, and leaves the split time screen on the display. Press the Abutton to exit the split time screen and display the elapsed time when the measurement was stopped.
Split Time Screen The split time screen cycles alternately cycle through the split indicator, a minute/second screen, and a 1/100 second screen.
Split Indicator Minutes Seconds 1/100 Second

—6 —
■ To turn the alarm on or off 1. In the Alarm Mode, use the DD
DD
Dbutton to display the
alarm screen.
2. Press the AA
AA
Abutton to toggle the alarm
on (“”displayed) or off (“ ” displayed).
Alarm Off
Alarm Time
Alarm On
■ To stop the alarm beeper Press any button. ■ To test the alarm In the Alarm Mode, hold down the Dbutton to sound the alarm.
■ To turn the hourly time signal on or off 1. In the Alarm Mode, use the DD
DD
Dbutton to display the
Hourly Time Signal screen.
2. Press the AA
AA
Abutton to toggle the Hourly Time Signal on
(“ ”) or off (“”).
Hourly Time Signal Off Hourly Time Signal On
Home time settings include your Home City (the city where you will normally use the watch), the current time and date in your Home City, and other settings. •Use the Timekeeping Mode to configure home time settings.
If you are planning to manually adjust both the digital and analog settings, be sure to adjust the digital setting first.
■ To configure home time settings 1. In the Timekeeping Mode,
hold down the AA
AA
Abutton
for about two seconds.
•This will cause the city code
currently selected as the Home City to flash on the display.
2. Press the DD
DD
Dbutton to
scroll through the city codes until the one you want to select is displayed.
•See the “World Time City
Code List”for information about city codes.
•Holding down either button
scrolls at high speed.
3. When the city code you
want is displayed, press the CC
CC
Cbutton.
•This will display the summer
time (DST) setting screen.
City Code
TYO=Tokyo (Forward)
Configuring Home Time Settings
You can set the daily alarms in 1-minute increments. The watch beeps for 10 seconds when the current time in the Timekeeping Mode reaches the alarm time you set. The Hourly Time signal causes the watch to beep every hour on the hour. ■ To display the alarm screen
In the Alarm Mode, press the DD
DD
Dbutton to toggle the display
between the alarm screen and the Hourly Time Signal screen.
When you enter the Alarm Mode, the screen that was displayed when you last exited the mode appears first.
Alarm Screen
•
Alarm off
Hourly Time Signal Screen
•
Hourly Time Signal off
■ To set the alarm time 1. In the Alarm Mode, press
the DD
DD
Dbutton to display
the alarm screen.
2. Hold down the AA
AA
Abutton
for about two seconds.
•This will cause the hour digits
of the displayed alarm time to flash.
•Displaying the setting screen
automatically turns on the alarm.
Hour
3. Use the DD
DD
D(+) and BB
BB
B(–)
buttons to change the hour setting.
•Holding down either button
changes the setting at high speed.
•When setting the hour, make
sure you specify AM (no indicator) or PM (P) correctly when using 12-hour timekeeping, or that you specify the correct 24-hour time.
•The same 12-hour/24-hour
format you select for the Timekeeping Mode home time is also applied in the Alarm Mode.
4. Press the CC
CC
Cbutton to
select the minute setting.
•This causes the minute digits
to flash.
5. Use the DD
DD
D(+) and BB
BB
B(–)
buttons to change the minute setting.
•Holding down either button
changes the setting at high speed.
6. When the setting is the way you want, press the AA
AA
A
button.
•This exits the setting screen. •The display also will exit the setting screen automatically if
you do not perform any operation for about two or three minutes.
(Forward)
(Back)
Minutes
(Forward)
(Back)
Using the Alarms and Hourly Time Signal

—7 —
6.
While the 12/24-hour timekeeping setting is flashing, press the DD
DD
D
button to toggle between 12-hour (“12H”) and 24-hour (“24H”) timekeeping.
7.
While the seconds are selected, press the DD
DD
D
button to reset them to 00 in accordance with the time signal on the radio, TV, etc.
•Pressing the Dbutton while
the seconds count is in the range of 30 to 59 resets it to 00 and also adds 1 to the minutes. Pressing the D button in the range of 00 to 29 resets the seconds count without changing the minutes.
•Pressing the Bbutton while
the seconds count is flashing changes the face illumination duration. See “Face
Ilumination”for more information.
8.
While the hour, minutes, year, month, or day setting is flashing, use the DD
DD
D(+)
button to change the setting.
•Holding down the Dbutton
changes the setting at high speed.
Use the CC
CC
Cbutton to select each of the settings and the
DD DD
Dbutton to change them.
•When setting the hour, make sure you specify AM (no indicator) or
PM (P) correctly, or that you specify the correct 24-hour time.
•You can set a year in the range of 2000 to 2099. The day of the
week is set automatically in accordance with the date you set.
•The watch automatically makes adjustments for leap years and
month lengths.
Indicates 12-hour or 24-hour timekeeping.
Seconds reset to 00.
MinutesHour (Forward)
4.
Press the DD
DD
Dbutton to
cycle through the available summer time (DST) settings until the one you want to select is displayed.
•AUTO This setting enables the auto summer time setting, which turns summer time on or off in accordance with the received time calibration signal. •This setting uses Japan summer time data when TYO is
selected as the Home City, and U.S. summer time data when NYC, CHI, DEN, or LAX is selected as the Home
City.
•Note that “AUTO”can be selected only when TYO, LAX,
DEN, CHI, or NYC is selected as the Home City.
•OFF This setting turns off summer time and returns to normal
timekeeping. •ON This setting turns on summer time and advances the current time by one hour. The DST indicator appears on the display when this setting is selected.
5.
When the summer time setting is the way you want, use the CC
CC
Cbutton to
cycle the display through the settings shown below.
Summer Time
Home City
Code 12/24-hour
Timekeeping
HourMinuteMonth Year
Day Seconds
High-speed Lock •While holding down the Dbutton to start high-speed clockwise
movement of the hands, press the Bbutton to lock the
high-speed hand movement. You can then release the buttons.
•High-speed hand movement will continue until it completes a
12-hour cycle, or until you press any button to stop it.
•High-speed hand movement will also stop momentarily if an alarm
starts to sound. High-speed movement will resume after the alarm stops.
3.
When the setting is the way you want, press the AA
AA
A
button.
•This exits the setting screen and automatically synchronizes
the minute hand with the current seconds count.
•The display also will exit the setting screen automatically if
you do not perform any operation for about two or three minutes.
9.
When all of the settings are the way you want, press the
AA AA
Abutton.
•This exits the setting screen. •The display also will exit the setting screen automatically if
you do not perform any operation for about two or three minutes.
Digital-Analog Synchronization After adjustment of the digital time, the watch automatically adjusts its analog setting to match. •When adjusting the analog time, the hands move clockwise. •Depending on how many hours different the digital and analog
time settings are, it may take some time for the analog hand setting procedure to be finished.
Adjusting the Analog Time Setting You can use the Hand Setting Mode to manually adjust the analog time when it does not match the digital time. 1.
In the Hand Setting Mode, hold down the AA
AA
Abutton
for about two seconds.
•This will cause the hour and
minute setting of the digital time to flash on the display.
2.
Use the DD
DD
D(+) button to
adjust the hour and minute hands so they match the digital time.
•Each press of the Dbutton
moves the hands 20 seconds clockwise.
•Holding down the Dbutton
moves the hands at high speed.
(Forward)

—8 —
3. DRAWINGS: MODULE QW-3390
3-1. LCD DIAGRAM
L 9 L 8 L10 L11 L12 L13 L14 L15 L16 L17 L18 L19 L20 L21 L22 L23 L24 L28 L29 L30 LC4 LC2 L 7 LC5 LC3 L 6 LC1
PM
X0
Y0
Y4
DST0 X16
DST0
L30
X9Y4
X10Y4
X11Y4
X16Y4
X15Y4
X14Y4
X13Y4
X12Y4
X4Y4
X3Y4
X2Y4
X1Y4
X0Y4
X5Y4
X6Y4
X7Y4
X8Y4
PM
SEG COM LC1 LC5LC4LC3LC2
L26
L22
L25
L24
L23
L21
L20
L19
L18
L17
L16
L15
L14
L13
L12
L11
L10
L 9
L 8
L 7
L 6 L29
L28
L27
X9Y3
X10Y3
X11Y3
X16Y3
X15Y3
X14Y3
X13Y3
X12Y3
X4Y3
X3Y3
X2Y3
X1Y3
X0Y3
X5Y3
X6Y3
X7Y3
X8Y3 X9Y2
X10Y2
X11Y2
X16Y2
X15Y2
X14Y2
X13Y2
X12Y2
X4Y2
X3Y2
X2Y2
X1Y2
X0Y2
X5Y2
X6Y2
X7Y2
X8Y2 X9Y1
X10Y1
X11Y1
X16Y1
X15Y1
X14Y1
X13Y1
X12Y1
X4Y1
X3Y1
X2Y1
X1Y1
X0Y1
X5Y1
X6Y1
X7Y1
X8Y1 X9Y0
X10Y0
X11Y0
X16Y0
X15Y0
X14Y0
X13Y0
X12Y0
X4Y0
X3Y0
X2Y0
X1Y0
X0Y0
X5Y0
X6Y0
X7Y0
X8Y0 SEG COM

— 9 —
3-2. CIRCUIT DIAGRAM
BAT
L6 - - - L30 LC1 - - - LC5
C8
LL1
Tr1
SCR SCIN
RP1RP2
Cp
PZ
SDO SCK CSB
KC4 KC3 KC2 KC1
Z
VPM
Di2 R1
SDI
Cxt
Rxt2
Ccp
Cbat
Rbat
Xtal2
ISB
ANT
Rcp
Rxt3
Xtal3
An.B1
L3 - - L5
Cc
FET-S
GND4
Asel Pon P3-2 Hold
P14
FET-D
P1 P2
GND3 GND2 P3-1
P4 P5
GND5
P12 P13
GND1
TCO VCC
P9 P7
Crh1 Crh2 Crh3 Crl1 Crl2 Crl3
Rpd
LED1 LED2
Rld2 Rld1
LED3
Rld3
Tr2
✽16
L32 - - L36
L31, L37 - - - L55
LCD ( 2.8V 1/3b 1/5d )
LSI
TOTAL 106PINS
BONDING 76PINS
Di LL2
Cld1
XTB
LD1
XT T1 T2 T3
KI1 KI2 KI3 KI4 KI7 KI5 KI6 KI8 KI9
AC T4 R1 R2
VSC
R3 N1 N2
L1 L2
✽9✽1
✽3 ✽3 ✽3 ✽3 ✽3 ✽3 ✽3
✽8✽8
✽3 ✽3
OP1 OP2
✽15 ✽17
VOUT0
COILB
LED
DRIVER
5ENABLE 4(N.C.)
3GND
2(N.C.)
1LEDOUT (N.C.)A
(N.C.)9
VDD8
CE27
6CE1
Cld2
Rb
GNDB
✽6
S2 S1 S4 S3
KS
✽18
✽2 ✽2
✽2
✽19
Xtal
CT
✽4 ✽5 ✽5 ✽4 ✽4
Di1
SC
C9
✽19 GND VDD2
VCH
VDD3
VC1 VC2
C3
C2C5
VDD1
C1
BD
VDSP
C4
VC3 VC4
VHF
C6
C7
✽1✽1✽1✽1✽1✽1✽1
✽1✽13
✽13 ✽13
✽14
✽13
✽13
✽13
✽12
✽10
✽11
✽7
✽19
✽ 1. No bonding ✽ 2. GND-Kl5: Open (No Soldering) GND-Kl6: Open (No Soldering) GND-Kl7: Open (No Soldering) ✽ 3. Latch type key ✽ 4. Short (Soldering) (R trimming) ✽ 5. Short (Soldering) (N trimming) ✽ 6. GNDB is used for the bias on the back of the tip. ✽ 7. L28~L30 are used as the static drive pins. ✽ 8. Motor drive pins (01 and 02) are used in this module. ✽ 9. Normal Low ✽ 10. LD2 (Normal Low) is used in this module.
✽ 11. LD3 (Normal High) is used in this module. ✽ 12. Cxt is not mounted in the specification for dual translmitters. ✽ 13. Cc, Crl1, Crl2, Crl3, Rxt3 and Xtal3 are not mounted in the specification for single transmitter. ✽ 14. Rpd is not mounted in the specification which includes signal reception. ✽ 15. Short here with a soldering short pad when three LEDs are mounted. ✽ 16. Mount Tr2 only when one LED is mounted. ✽ 17. Short here with a soldering short pad only when one LED is mounted. ✽ 18. Inclination sensor ✽ 19. Not mounted in this module. ✽ 20. No parts except Rdp are mounted within the area of the dotted line in modules without signal reception function.

—10 —
3-3. CHECKING TERMINALS AND COMPONENTS
Short pad for R trimming
Short pad for N trimming
Short pad for switching modules
OSCILLATOR/CRYSTAL
(7110 6336)
CUSHION 466-A
(7211 9576)
TAPE/ADHESIVE
(1000 6652)
CUSHION 506
(7211 9631)
CUSHION 506
(7211 9631)
CAPACITOR/TRIMMER
(1009 7666)
16. PCB ASS'Y
(7640 7974)
R3
R2
R1
P9
Ccp
Ccp
GND
AC
L1
GND
GND
KI5
KI6
GND
KI7
GND
VC1
KI8
KI8
VDSP
P13
P1
P2
VSC
GNDB
GND
VCC
KI9
GND
VCC
GND
XT
XT
P2
GND
LL1
VDD2
GND
LL1
TR1
GND
N2
GND
GND
VDSP
VC2VC1
GND
VDD1
N1
GND
GND
GND
GND
FET-D
XTB
LL1
TR1
BD
VDD2
GND
TR1
LL1
VDD2
GND
VCH
VDD2
P14P12
FET-S
KI3
VDD2
KI2
GND
KI2
KI4
KI3 KI1
KI4
KI1
VHF
GND
VDD2 OP
LEDOUT
OP
KI8
KI1
VOUT
GND
LED2
LEDOUT
VOUT
COIL
LEDOUT
LED1
SCIN
SCR
SCIN
VSC
VDD2
COIL
GND
VOUT
GND
VDD2
GND
LEDOUT
GND
GND
LD1
CE1 CE2
VSC
L 9 L 8 L10 L11 L12 L13 L14 L15 L16 L17 L18 L19 L20 L21 L22 L23 L24 L25 L26 L27 L28 L29 L30
LED2
VOUT
LED1
VDD2
VOUT
COIL
P4P5P7
GND
SCIN
GND
GND
X3 X2P5
CE2CE1 GND VOUT
OP
LED3
LEDOUT
GND LD1
GND
VC4
VDD3
VC3
LC4 LC2 L 7
VSC
LC5 LC3 L 6 LC1
X2
P7
P7
X3 L1
L2
KI4 KI2
KI3
GND
LED3

— 11 —
4. EXPLODED VIEW: MODULE QW-3390
21 (1005 3572)
21 (1005 3572)
20 (7230 1025)
24 (7224 0652)
25 (1015 5787)
17 (7228 0511)
11 (1015 5789)
Battery
(CR1616)
14 (1015 1988)
9 (1015 5782)
Casing parts: DIAL
SPACER
4 (1001 6598)
16 (7640 7974)
PCB Ass'y
7 (1001 4042)
19 (7201 9249)
12 (1015 5784)
7 (1001 4042)
8 (7231 1777)
13 (7229 0790)
7 (1001 4042)
1 (7640 7573)
3 (1013 0977)
17 (7228 0511)
10 (1001 6591)
22 (1015 5788)
7 (1001 4042)
18 (1012 3230)
18 (1012 3230)
18 (1012 3230)

5. PARTS LIST: MODULE QW-3390
Note: 1. Prices and specifications are subject to change without prior notice.
2. Spare parts are classified as follows according to their importance in after-sales service.
A Rank ---------------------------------------- Very Important
B Rank ---------------------------------------- Important
C Rank ---------------------------------------
-
Less important
3. Batteries in Bulk pack on the tray will be supplied from our Overseas Spare Parts Section under charge basis.
Batteries in Blister pack will be supplied from our Sales Department.
4. As for order/supply of spare parts, refer to the separate publication "GUIDE BOOK for spare parts supply".
Item Code No. Parts Name S
p
ecification A
pp
licable Q R
7640 7918 MODULE/WITH MOVEMENT QW-3390YC-02TK BGT-3010-8A 1 A
17640 7573 ANALOG BLOCK QW-3329MV-82TK QW-3390YC-02TK 1 B
21009 7666 CAPACITOR/TRIMMER CTZ2E-25C-W2-P QW-3390YC-02TK 1 B
31013 0977 COIL ASS'Y RJQ513694*001V01 QW-3390YC-02TK 1 C
41001 6598 CONTACT/BATTERY(-) Q366836-1 QW-3390YC-02TK 1 C
57211 9576 CUSHION 466-A Q48342A-1 QW-3390YC-02TK 1 C
67211 9631 CUSHION 506 Q49364-1 QW-3390YC-02TK 2 C
71001 4042 CUSHION 2306-1 Q466421-1 QW-3390YC-02TK 2 C
87231 1777 HOLDER 1381 Q456843-1 QW-3390YC-02TK 1 C
91015 5782 HOLDER 3329 RJQ518016-001V01 QW-3390YC-02TK 1 C
10 1001 6591 HOLDER/BATTERY Q366808-1 QW-3390YC-02TK 1 C
11 1015 5789 HOLER/HOUR WHEEL RJQ517854-001V01 QW-3390YC-02TK 1 C
12 1015 5784 INTERCONNECTOR/3329 RJQ518251-001V01 QW-3390YC-02TK 1 C
13 7229 0790 LABEL/1856 Q461569-1 QW-3390YC-02TK 1 C
14 1015 1988 LCD K3329-01TH QW-3390YC-02TK 1 A
15 7110 6336 OSCILLATOR/CRYSTAL CFS-145LM07 QW-3390YC-02TK 1 B
16 7640 7974 PCB ASS'Y RJQ519620*002V01TK QW-3390YC-02TK 1 A
17 7228 0511 SCREW/FLAT 388 Q422638-1 QW-3390YC-02TK 2 B
18 1012 3230 SCREW/FLAT2730 RJQ513792-001V01 QW-3390YC-02TK 4 B
19 7201 9249 SPRING/COIL 675-3 Q413389A-1 QW-3390YC-02TK 1 B
20 7230 1025 SPRING/COIL 1510-1 Q459238-1 QW-3390YC-02TK 1 B
21 1005 3572 SPRING/COIL 2735-1 Q468078-1 QW-3390YC-02TK 4 B
22 1015 5788 SUPPORTER/PCB ASSY 3329 RJQ517852-001V01 QW-3390YC-02TK 1 C
23 1000 6652 TAPE/ADHESIVE Q465964-1 QW-3390YC-02TK 1 C
24 7224 0652 WASHER Q421691-1 QW-3390YC-02TK 1 C
25 1015 5787 WHEEL/HOUR 3329 RJQ517619-001V01 QW-3390YC-02TK 1 C
For the
p
rices and minimum order/su
pp
l
y
q
uantities of the above
p
arts, refer to the Parts Price List P.P.L.-617.
Notes: Q - Used quantity
R - Rank — 12 —

—13 —
6. PRECAUTIONS FOR REPAIR: MODULE QW-3390
6-1. AC (ALL CLEAR) AND REMOVING OF MODULE
1. Perform AC (ALL CLEAR) when inserting a new battery, or else the memories and/ or counters may give
erratic displays.
Touch the AC contact and the main plate with the metallic tweezers.
The contact should be made for about two seconds.
2. On removing of the module from the case, please insert the precision screw driver between the module and
the case pointed by arrows.

— 14 —
6-2. ACCURACY CHECKING
Check the accuracy of the module with the quartz timer after switching the module to “ACCURACY CHECKING
MODE”.
The operations are shown below:
A) SWITCHING TO “ACCURACY CHECKING MODE”
While pressing the D button, press Aand Cbuttons at the normal timekeeping mode.
Then all the segments are displayed and the LCD drive signals are changed to the static drive signal of “32
Hz” so that you can check the accuracy with the quartz timer.
B) CANCELLATION OF THE “ACCURACY CHECKING MODE”
Press any button.
Then the display is returned to its original state.
NOTE: The “ACCURACY CHECKING MODE” will
automatically return to the regular mode
in 1 ~ 2 hour(s) without any operation.
6-3. TIME CALIBRATION SIGNAL TEST MODE
1) Press B, Cand Dbutton at the same time to enter the test mode.
2) Press Abutton to switch from one signal source to another.
J4: Fukushima, Japan (Call Sign: JJY, Frequency: 40kHz)
J6: Fukuoka/Saga, Japan (Call Sign: JJY, Frequency: 60kHz)
U6: Fort Collins, Colorado (Call Sign: WWVB, Frequency: 60kHz)
3) Press Dbutton to start signal reception.
QW-3390
A
C
B
D

—15 —
7. TROUBLESHOOTING: MODULE QW-3390
This is a flow chart about signal reception.
Yes
No
Yes
No
Yes
No
Yes
No
START
Check whether the Home City
code is selected correctly.
To perform MANUAL time
calibration signal reception
OK
There is a possibility of location bad.
To perform AUTO time
calibration signal reception
Replace the PCB ass'y
Signal
reception OK?
Signal
reception OK?
Signal
reception OK?
Replace the Case center
ass'y with antenna
Signal
reception OK?
OK
OK
OK

Ver. 1 : May. 2006
Correction of pages 11 and 12
CASIO COMPUTER CO.,LTD.
Overseas Service Division
6-2, Hon-machi 1-Chome
Shibuya-ku, Tokyo 151-8543, Japan