(WITHOUT PRICE)
SERVICE MANUAL
& PARTS LIST
REF. NO. S/M-583
DECEMBER 1997
QW-1625
QW-1626
MODULE NO.
R
PRL-30BVJ
INDEX
- 1 -
CONTENTS
1. SPECIFICATIONS : QW-1625 / 1626
1. SPECIFICATIONS · · · · · · · · · · · · · · · · · · · · · · · · · · · 1
2. OPERATION CHART · · · · · · · · · · · · · · · · · · · · · · · · · 2
3. DRAWINGS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 9
3-1. BLOCK DIAGRAM · · · · · · · · · · · · · · · · · · · · · · · · · 9
3-2. CHECKING TERMINALS AND COMPONENTS · · · · 10
3-3. N1~N4 PADS · · · · · · · · · · · · · · · · · · · · · · · · · · · · 10
4. EXPLODED VIEW · · · · · · · · · · · · · · · · · · · · · · · · · · · 11
5. PARTS LIST · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 12
6. PRECAUTIONS FOR REPAIR · · · · · · · · · · · · · · · · · · · 13
6-1. AC (ALL CLEAR) AND REMOVING OF MODULE · · · 13
6-2. ACCURACY CHECKING · · · · · · · · · · · · · · · · · · · · 13
Item
Detail
Item
Detail
Battery
CR2016
Accuracy
±15sec./month
Battery life
Approx. 24 months
Accuracy setting system Trimmer capacitor
Current consumption
1.00
µA maximum
Accuracy checking
See page 13
Alarm system
Piezo plate on Back cover
Accuracy setting
+0.25~+0.35sec./day
Function
· Electro-luminescent backlight
· Auto light switch
· Low temperature resistance (-20 C)
· Thermometer
Measuring range: -20 C to 60 C
Display unit: 0.1 C
· Sunrise and sunset data:
(Sunrise/sunset times based on input data)
· Trekking counter
Input data: Length of stride
Output data:
Measuring capacity (Up to 23:59'59)
Number of steps (Up to 99,999)
Distance (Up to 999 km)
· Countdown alarm
Input range: 1 min. to 60 min.
Unit: 1 sec.
· Daily alarm
· Hourly time signals
· Regular timekeeping: Hr, min, sec, am/pm, mo, date, day
· Auto-calendar (Pre-programmed until the year 2039)
· 12/24-hour formats
- 2 -
2. OPERATION CHART : MODULE QW-1625
GENERAL GUIDE
· Press
to change from mode to mode. After you perform an operation in any mode, pressing
returns to the Timekeeping Mode.
· In any mode (except when making settings) press
to illuminate the display for about two seconds.
Thermometer Mode
Alarm Mode
Timekeeping Mode
Countdown
Alarm Mode
Trekking
Counter Mode
TIMEKEEPING MODE
To set the time and date
1. Hold down
while in the Timekeeping Mode
until the seconds digits flash on the display
because they are selected.
2. Press
to change the selection in the following
sequence.
3. While the seconds digits are selected (flashing),
press
to reset the seconds to 00. If you press
while the seconds count is in the range of 30
to 59, the seconds are 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.
Month
and Day
Minutes
PM
indicator
Day of
week
Seconds
Day
Month
Year
Hour
Minutes
12/24-Hour
Format
Day of
week
Hour
Seconds
Temperature
graph
4. While any other digits (beside seconds) are selected (flashing), press
to increase
the number or
to decrease it. While the day of the week is selected, press
to
advance to the next day and
to move back. While the 12/24-hour format setting
is selected, press
to toggle it between 12 and 24.
· Except for when adjusting the seconds or setting the 12/24-hour format, holding
down a button changes the current selection at high speed.
· When the 12-hour format is selected, the indicator A appears on the display to
indicate "A.M." times or indicator P appears on the display to indicate "P.M." times.
Selecting the 24-hour format causes the indicator 24 to appear on the display.
5. After you set the time and date, press
to return to the Timekeeping Mode.
· 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 Backlight Function
When the auto backlight 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 backlight 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.
Parallel to
ground
· 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
backlight function. If the auto 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 turn the face of the watch towards you. This does not necessarily indicate
malfunction of the backlight.
Parallel to ground
More than 15 degrees
too high
More than 15 degrees
too low
To switch the auto backlight function on and off
In the Timekeeping Mode, hold down
for one or two seconds to turn the auto
backlight function on and off.
· The auto backlight indicator is shown on the display in all modes while the auto
backlight function is on.
· In order to protect against running down the battery, the auto backlight function is
automatically turned off approximately three hours after you turn it on. Repeat the
above procedure to turn the auto backlight function back on if you want.
· Pressing
at any time illuminates the display for about two seconds, regardless of
the auto backlight's on/off setting.
Holding down
OFF
ON
Auto backlight indicator
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 backligfht shortens the battery life.
· The watch emits an audible sound whenever the display is illuminated. This is because 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 on a roadside or in any other location
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 backlight 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 backlight can create a distraction,
which can result in a traffic accident and serious personal injury.
THERMOMETER MODE
A built-in temperature sensor measures temperature and shows the measured value
on the display. The readout from the temperature sensor can also be switched
between Celsius (°C) and Fahrenheit (°F). The thermometer can be calibrated to
correct for errors.
Important!
Temperature measurements are affected by your body temperature (while you are
wearing the watch), direct sunlight, and moisture. To achieve a more accurate
temperature measurement, remove the watch from your wrist, place it in a well
ventilated location out of direct sunlight, and wipe off all moisture from the case. It
takes approximately 20 to 30 minutes for the case of the watch to reach the actual
surrounding temperature.
Accurate temperature measurements cannot be achieved while you are wearing the
watch. The following graph illustrated affects of body temperature on actual
temperature.
Temperature
Temperature measured when watch is worn on wrist
40 C
30 C
20 C
10 C
0 C
10 C20 C30 C
40 C
Approximate
Differences caused by
individual body
temperture or clothing
About Temperature Measurement
· A temperature graph which is automatically updated every five minutes, is shown on
the display in all modes (except when making settings). Measured temperature
values can be viewed in the Thermometer Mode only.
· Pressing
while in the Thermometer Mode
performs temperature measurement and causes
the measured value to appear on the display.
The display shows " . °C (or °F)" if a
measured value falls outside the range of 20°C
to 60°C (4°F to 140°F). The normal display will
return as soon as the temperature returns within
the allowable range.
Current
temperature
Mode
indicator
Temperature
graph
Switching between Celsius and Fahrenheit
1. Hold down
while in the Thermometer Mode
and the current temperature digits flash.
2. Press
to select either Celsius "°C" or
Fahrenheit "°F".
3. After you select the Celsius or Fahrenheit, press
to return to the Temperature Display.
· 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 Thermometer Mode
automatically.
Flashes
C
C
C
C
D
D
D
D
D
D
D
D
B
B
B
B
A
A
A
A
40°
- 3 -
Calibrating the Temperature Measurement
The temperature sensor of this watch is calibrated at the factory before shipment and
further adjustment is normally not required. If noticeable error is found in the
temperature readings produced by the watch, you can adjust it to correct the error.
Important!
Incorrectly calibrating the temperature measurement of this watch can result in
incorrect readings. Carefully read the following before doing anything.
· Compare the readings produced by the watch with those of another reliable,
accurate thermometer.
· If calibration is required, remove the watch from your wrist and wait for 20 or 30
minutes to give the temperature of the watch time to stabilize.
· Perform the temperature calibration before procedure as quickly as possible to avoid
the temperature of the watch being affected by your body temperature.
· You can also perform temperature calibration underwater, if the water temperature is
stable.
To calibrate the temperature
1. Hold down
while in the Thermometer Mode
and the current temperature digits flash.
2. Each press of
increase the displayed
temperature by 0.1°C, and pressing the
decrease it by 0.1°C.
· If you have selected Fahrenheit as your unit of
measurement, the above operations change the
reading by 0.2°F.
· You can calibrate the temperature within a range
of 9.9°C to +9.9°C (18.0°F to +18.0°F).
· Press
and
at the same time to reset the
temperature calibration to the factory setting.
3. After calibrating the temperature, press
to
return to the Temperature Display.
·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 Thermometer Mode
automatically.
Flashes
TREKKING COUNTER MODE
The Trekking Counter counts how many steps you
take and elapsed time while walking. After you input
the length of your stride, it also automatically
calculates and displays the distance you have
covered.
Important!
·The Trekking Counter cannot count the number of
steps you take if the watch is on your wrist. Be
sure to wear the watch on your waist as described
in "USING THE BAND CLIP".
·Note that the accuracy of data measured by the
Trekking Counter can be affected when you are
walking on sand or other soft ground, on a steep
upgrade, or on a steep downgrade.
· To improve the accuracy of measured data, be sure to turn off the Trekking Counter
whenever you are taking a break or stop walking for any other reason.
· Be sure to take care not to drop the watch while walking.
Mode
indicator
Steps
Distance
Elapsed time
To set your stride length
Important!
·If you plan on changing the measurement units,
be sure do so before setting your stride length.
Changing the measurement units automatically
clears the stride length setting, which means you
will have to re-input it.
1. In the Trekking Counter Mode, hold down
until
the stride length value flashes on the display.
2. Press
to increase the setting or
to decrease
it.
· Holding down either button changes the current
selection at high speed.
· You can set a stride length in the range of 10 cm
(4 inch) to 250 cm (98 inch).
Stride length
3. After you finish making the setting, press
to return to the normal Trekking
Counter Mode (no flashing on the display).
· If you do not operate any button for a few minutes while the stride length is flashing,
the flashing stops and the watch goes back to the normal Trekking Counter Mode
automatically.
Changing the Measurement Units
You can change the measurement units displayed by the watch between the
following.
Stride Length: Centimeters (cm)
Inches (inch)
Distance:
Kilometers (km)
Miles (mile)
To change the measurement units
While the stride length is flashing on the display as described under "To set your stride
length," press
to toggle between metric and inch/mile measurement units.
· Note that changing the measurement units automatically clears the stride length
setting. This means that if you want the Trekking Counter to calculate and display
the distance you cover, you must re-input your stride length whenever you change
the measurement units.
Important!
· The Trekking Counter is not intended for use as an all-day pedometer. Trekking
Counter operation requires considerable battery power, so be sure to press
to
stop its operation after you are through using it. Next, press
to return to the
Timekeeping Mode.
· To protect against prematurely running down the battery, Trekking Counter operation
turns off automatically and the watch emits a 2-second beep to alert you if the
Trekking Counter is left on for more than 24 hours. Note that measured values up to
the point that the Trekking Counter turns off are retained, so you can start the next
operation from the displayed values.
To use the Trekking Counter
1. Press
to start Trekking Counter operation.
· Elapsed time, number of steps, and distance covered are all shown on the display
while the Trekking Counter is operating.
2. Press
to temporarily stop Trekking Counter Operation.
· You can use
to stop and re-start Trekking Counter operation as many times as
you like. Each time you press
to re-start, the elapsed time, number of steps and
distance values start from point they were at when you pressed
to stop Trekking
Counter operation.
3. After you are finished using the Trekking Counter, press
to stop operation and
then press
to clear all of the values to zero.
COUNTDOWN ALARM MODE
The countdown timer can be set within a range of
1 minute to 60 minutes. When the countdown
reaches zero, an alarm sounds for 10 seconds or
until you press any button.
To set the countdown time
1. Hold down
while in the Countdown Alarm
Mode. The minutes digits flash on the display
because they are selected.
2. Press
to increase the minutes digits or
to
decrease them. Holding down either button
changes the setting at high speed.
3. After you set the countdown time, press
to
return to the Countdown Alarm Mode.
·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 Countdown Alarm
Mode automatically.
Mode
indicator
Current
time
Minutes
Seconds
To use the countdown timer
1. Press
while in the Countdown Alarm Mode to start the countdown timer.
2. Press
again to stop the countdown timer.
· You can resume countdown timer operation by pressing
.
3. Stop the timer and then press
to reset the countdown time to its starting value.
ALARM MODE
When the Daily Alarm is turned on, the alarm
sounds for 20 seconds at the preset time each day.
Press any button to stop the alarm after it starts to
sound. When the Hourly Time Signal is turned on,
the watch beeps every hour on the hour.
To set the alarm time
1. Hold down
while in the Alarm Mode. The hour
digits flash on the display because they are
selected. At this time the Daily Alarm is turned on
automatically.
2. Press
to change the selection in the following
sequence.
Mode
indicator
Current
time
Minutes
Alarm on
indicator
Hourly time
signal on
indicator
Hour
Hour
Minutes
3. Press
to increase the selected digits or
to decrease them. Holding down
either button changes the selection at high speed.
· The format (12-hour and 24-hour) of the alarm time matches the format you select
for normal timekeeping.
· When setting the alarm time using the 12-hour format, take care to set the time
correctly as morning (A) or afternoon (P).
4. After you set the alarm time, press
to return to the Alarm Mode.
· 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 Alarm Mode automatically.
To switch the daily alarm and hourly time signal on and off
Press
while in the Alarm Mode to change the status of the daily alarm and hourly
time signal in the following sequence.
To test the alarm
Hold down
while in the Alarm Mode to sound the alarm.
Both ON
Both OFF
Daily Alarm
only
Hourly Time
Signal only
Alarm on indicator
Hourly time signal on indicator
C
C
C
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
B
B
B
B
B
A
A
A
A
A
A
A
A
A
A
- 4 -
USING THE BAND CLIP
To attach the band clip
1. Remove the band from the watch.
2. Insert the band clip into band attachment at
the bottom (6 o'clock position) of the watch,
and fasten the button to secure it in place.
How to wear the watch during Trekking Counter operation
Note that the Trekking Counter cannot take
measurements correctly while the watch is on
your wrist. When using the Trekking Counter,
be sure to use the band clip to attach the
watch to your belt. Your belt must pass
through the metal part of the band clip for
proper operation. If you are not wearing a belt,
attach the watch to a belt loop.
Trekking Counter Precautions
Be sure to turn off the Trekking Counter in the following cases. If you don't the Trekking
Counter may interpret your movements as steps and produce incorrect measurements.
· Any activity involving jumping, bending, stretching, etc.
· Resting
· Riding on a bicycle, train, bus, or any other vehicle that generates vibration
Any of the following conditions can cause Trekking Counter measurements to lose accuracy.
· Walking on loose ground, or steep up slopes or down slopes
· Running
· Shuffling your feet while walking
· Uneven stride
· Walking in sandals, shower shoes or similar footwear
· Walking up or down stairs
Trekking Counter measurements may become inaccurate or even fail entirely if the watch is
exposed to strong magnetic force.
Always be sure to fasten the band clip to the bottom (6 o'clock position) of the watch, and not
to the top (12 o'clock position).
Take care to avoid dropping the watch while walking.
When using the Trekking Counter, make sure the watch is not resting against your clothing or
waist pack. If the watch is not hanging loosely, the Trekking Counter will not be able to count
your steps correctly.
Band
Attachment
Top of watch
(12 o'clock position faces down)
Band Clip