(WITHOUT PRICE)
SERVICE MANUAL
& PARTS LIST
REF. NO. S/M-572
OCTOBER 1997
QW-1634
QW-1635
MODULE NO.
R
CSN-001
(QW-1634)
CSN-001C
(QW-1635)
INDEX
- 1 -
CONTENTS
1. SPECIFICATIONS : QW-1634 / 1635
Function
· Electro-luminescent backlight
· World time
27 time zones (40 cities), city code display, daylight saving time on/off
· 30 peges of Telememo
8 letters and 12 numerals can be memorized.
· Other: Auto sort function, remaining memory display
· 1/100 sec. stopwatch
Measuring capacity: 59'59.99"
Measuring mode: Elapsed time, split time, 1st-2nd place times
· Regular timekeeping: Hr, min, sec, pm, mo, date, day
· Auto-calendar (pre-programmed until the year 2039)
· Daily alarm
· Hourly time signals
· 12/24-hour formats
· Auto display function
1. SPECIFICATIONS · · · · · · · · · · · · · · · · · · · · · · · · · · · 1
2. OPERATION CHART · · · · · · · · · · · · · · · · · · · · · · · · · 2
3. DRAWINGS
3-1. BLOCK DIAGRAM · · · · · · · · · · · · · · · · · · · · · · · · · 5
3-2. CHECKING TERMINALS AND COMPONENTS · · · · 6
3-3. N1~N4 PADS · · · · · · · · · · · · · · · · · · · · · · · · · · · · 6
4. EXPLODED VIEW · · · · · · · · · · · · · · · · · · · · · · · · · · · 7
5. PARTS LIST · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 8
6. PRECAUTIONS FOR REPAIR
6-1. AC (ALL CLEAR) AND REMOVING OF MODULE · · · 9
6-2. ACCURACY CHECKING · · · · · · · · · · · · · · · · · · · · 9
Item
Detail
Item
Detail
Battery
CR1220
Accuracy
±15sec./month
Battery life
QW-1634
Approx. 18 months
Accuracy setting system Trimmer capacitor
QW-1635
Approx. 15 months
Accuracy checking
See page 9
Current
QW-1634
2.665
µA maximum
Accuracy setting
+0.25~+0.35sec./day
consumption QW-1635
2.907
µA maximum
Alarm system
Piezo plate on Back cover
- 2 -
2. OPERATION CHART : QW-1634 / 1635
C
C
C
C
C
D
D
B
B
B
B
B
B
B
B
B
A
A
A
A
DST indicator
To select a city code
1. In the Timekeeping Mode, hold down
for about two seconds to display the Dual
Time screen.
The Dual Time screen is the one with the DUAL indicator.
If you want to change the Home Time city code, display the Home Time screen
instead of the Dual Time screen.
2. Hold down
until the city code starts to flash.
3. Use
and
to scroll through the city codes until you find the one you want to set.
scrolls forward, while
scrolls back through city codes. Holding down either
button scrolls through the city codes at high speed.
See the "CITY CODE TABLE" at the back of this manual for a complete list of
available codes.
4. After you select a city code, press
to return to the Timekeeping Mode.
To switch between standard time and daylight saving time
Daylight Saving Time (DST), which is also sometimes called "summer time," advanc-
es the time for one hour, as is the custom in some areas during the summer. Remem-
ber that not all countries or even local areas use Daylight Saving Time.
1. In the Timekeeping Mode, use
to display the time screen (Home Time or Dual
Time) whose Daylight Saving Time setting you want to change.
2. Hold down
until the city code starts to flash.
3. Use
to select the DST On/Off setting.
The DST indicator flashes along with the current on ( AN)/
off ( Af ) setting.
4. Press
to toggle Daylight Saving Time on and off.
5. After you are finished making the setting you want, press
to return to the Timekeeping Mode.
The DST indicator appears on the display to indicate
that daylight saving time is turned on.
The daylight saving time setting you make is applied
only to the time (Home Time or Dual Time) whose screen
is on the display when you start the above procedure.
You have to make separate settings for Home Time and
Dual Time.
About the backlight
In any mode, press
to illuminate the display for about two seconds.
The portion of the display illuminated by the backlight depends on the watch model.
With some models, smaller indicators may not be made visible by backlight illumina-
tion. Be especially careful when checking the Home Time and Dual Time indicators.
The backlight of the watch employs an electro-luminescent (EL) light, which loses
illuminating power after very long use.
The illumination provided by the backlight may be hard to see when viewed under
direct sunlight.
The watch will emit an audible sound whenever the display is illuminated. This is
caused by a transistor that vibrates when the EL panel lights up. It does not indicate
malfunction of the watch.
The backlight automatically stops illuminating whenever an alarm sounds.
City Code
Hour
Seconds
DST
On/Off
Minutes
12/24-Hour format
Month
Date
Year
City Code
TIMEKEEPING MODE
In the Timekeeping Mode you can view the current time and current date for your
home time zone, as well as the current time in one other time zone.
You can separately specify one of 40 cities around the world for your Home Time
and Dual Time. See the "CITY CODE TABLE" at the back of this manual for a list of
available time zones.
To switch between the Home Time and Dual Time screens, hold down
for about
two seconds. The DUAL indicator remains on the display in all modes while the
Dual Time screen is selected.
Pressing
while the Home Time screen is on the display shows the city code of
the Dual Time, followed by the current time in that city. After a few moments, the
display changes back to the Home Time Screen. Pressing
while the Dual Time
screen is on the display momentarily shows the Home Time city code and then
time.
To display the Date screen, press
. The Home Time date appears if
is pressed
while the Home Time screen is displayed, while the Dual Time date appears if
is
pressed while the Dual Time screen is displayed. In either case, the display changes
back to the time screen after a few moments.
Whenever you enter the Timekeeping Mode, the display first shows the city code
(for either the Home Time or Dual Time, depending on what screen was on the
display the last time you left the Timekeeping Mode), and then the current time in
that city.
To set the time and date
Times and dates are linked, so changing the setting for any time zone (city) automat-
ically changes the setting for all other time zones. The following time and date setting
procedure is explained using the Home Time screen, but you can also change set-
tings using the Dual Time screen. See "To select a city code" for details on selecting
a time zone for the Home Time and Dual Time screens.
1. In the Timekeeping Mode, hold down
until the Home
Time Screen appears.
2. Hold down
until the city code starts to flash. The city
code flashes because it is
selected.
3. Use
and
to scroll through the city codes until you
find the one you want to set as your home city.
scrolls forward, while
scrolls back through city
codes. Holding down either button scrolls through the
city codes at high speed.
See the "CITY CODE TABLE" at the back of this manu-
al for a complete list of available codes.
4. Press
to change the selection in the sequence below.
See "To switch between standard time and daylight saving time" for details on DST
On/Off setting.
5. While the seconds digits are selected (flashing), press
to reset the seconds to AA. If you press
while the
seconds count is in the range of 30 to 59, the seconds
are reset to AA and 1 is added to the minutes. If the
seconds count is in the range of 00 to 29, the minutes
count is unchanged.
6. While hour, minutes, year, month, or date is selected (flashing), press
to in-
crease the number or
to decrease it. While the 12/24-hour setting is selected,
press
to switch between the two formats.
Holding down either button changes the current selection at high speed.
When the 12-hour format is selected, the BCL indicator appears on the display.
With the 12-hour format, the PM indicator appears on the display to indicate "p.m."
times. There is no indicator for "a.m." times. Selecting the 24-hour format causes
the CZL indicator to appear on the display.
7. After you set the time and date, press
to return to the Timekeeping Mode (Home
Time screen).
The day of the week is automatically set in accordance with the date.
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.
Home Time
Dual Time
Date
Hour : Minutes
City Code
DUAL indicator
Month - Date
DATE indicator
Seconds
Day of week
Timekeeping Mode
Data Bank Mode
Alarm Mode
Stopwatch Mode
GENERAL GUIDE
If the digital display of your watch is continually changing, see "AUTO DISPLAY FUNCTION" for information on how to stop it.
Press
to change from mode to mode.
In any mode, press
to illuminate the display for about two seconds.
Display text appears either as black-on-white or white-on-black, depending on the model of your watch. All sample displays in this manual are shown as black-on-white.
DATA BANK MODE
The Data Bank Mode lets you store up to 30 pairs of name
and telephone number data. Data is automatically sorted
based on the characters of the name. You can recall data
by scrolling through it on the display.
See the "CHARACTER LIST" at the back of this manual
for details on how the watch sorts data.
The Remaining Memory Screen appears when there is
no data stored in memory, or when you scroll to the lo-
cation between the last and the first data items stored in
memory.
The name screen of the data item on the display when
you exit the Data Bank Mode appears first the next time
you enter the Data Bank Mode.
If you do not operate any button for a few minutes while
in the Data Bank Mode, the watch automatically goes
back to the Timekeeping Mode.
To input new Data Bank data
1. In the Data Bank Mode, press
until the remaining
memory screen appears.
If the message
FUL L
appears on the display, it
means that memory is full. To store more data, you will
first have to delete some of the data stored in memory.
2. Hold down
until the flashing cursor appears on the
display.
A separator is input automatically between the last char-
acter and the first character of the data.
The NAME indicator appears when the cursor is cur-
rently located in the text field.
Mode indicator
Name
[Remaining Memory Screen]
NAME indicator
Separator
Cursor
C
C
C
C
C
D
B
B
B
B
B
B
B
A
A
A
- 3 -
AUTO DISPLAY FUNCTION
The Auto Display function of this watch continually chang-
es the contents of the digital display. Note that you can-
not use any of the watch's other functions (except for back-
light) while the Auto Display function is operating.
To turn the Auto Display off
Hold down
for about three seconds until the watch
beeps.
To turn Auto Display on
Hold down
for about three seconds until the watch
beeps.
Note
The Auto Display function cannot be performed while you are making settings (i.e.
while digits or other settings are flashing on the display).
About On-screen Button Labels
This watch features on-screen button labels that indicate the function of each button.
You can use the following procedure to turn these labels on and off.
To turn on-screen button labels on and off
While the Auto Display function is turned on, press
to toggle the on-screen button
labels on and off.
The on-screen button label setting you select remains in effect even when you turn
off the Auto Display function.
On-screen button labels
(a) Elapsed time measurement
Start
Stop
Re-start
Stop
Clear
Start
Split
Split release
Stop
Clear
Start
Split
Stop
Split release
Clear
(b) Split time measurement
(c) Split time and 1st-2nd place times
First runner
finishes.
Second runner
finishes.
Record time of
first runner.
Record time of
second runner.
Mode indicator
Minutes
Seconds
1/100 second
Hourly Time
Signal Only
Daily Alarm
Only
Both OFF
Both ON
Hour
Minutes
3. Use
and
to change the character at the cursor position in the text field. The
character changes in the following sequence.
Holding down either button changes the character at high speed.
4. When the character you want is at the cursor position, press
to move the cursor
to the right.
5. Repeat steps 3 and 4 until your text is complete.
You can input up to eight characters in the text field.
6. After you input a name, use
to move the cursor to the number field.
The NAME indicator is cleared and the TEL indicator appears when the cursor is in
the number input field.
You can input up to eight characters for the name. After you input the eighth char-
acter, pressing
causes the cursor to jump to the first digit of the number.
You can input up to 12 digits for the number. After input the twelfth digit, pressing
causes the cursor to jump back to the first character of the name.
7. Use
and
to change the character (space, number, or hyphen) at the cursor
position in the number field. The character changes in the following sequence.
Holding down either button changes the character at high speed.
8. When the character you want is at the cursor position, press
to move the cursor
to the right.
9. Repeat steps 7 and 8 until you complete number input.
You can input up to 12 digits in the number field.
10. After inputting your data, press
to store it.
When you press
to store data, the watch takes a few seconds to sort memory
data. After the sort operation is complete, the watch returns to the normal Data
Bank Mode (without the cursor).
Unused spaces at the end of the name and number fields are automatically filled in
with " t " whenever the number of characters you input in these fields is less than
the allowable maximum (8 characters for the name, 12 digits for the number). These
filler characters also appear on the display whenever you recall data.
If you do not perform any button operation for a few minutes while the cursor is on
the display, the watch automatically returns to the normal Data Bank Mode (without
the cursor).
To recall Data Bank data
1. In the Data Bank Mode, press
to scroll through stored data items.
Holding down
scrolls through the data at high speed.
Only name data appears when you are scrolling through stored data items.
2. Press
to toggle the screen between the name and number data.
The name and number scroll from right to left on the screen. A separator (< ) is
inserted between the last character and first character of the data.
To edit Data Bank data items
1. In the Data Bank Mode, scroll through the data items and display the one you want
to edit.
2. Hold down
until the first character of the name starts to flash on the display.
3. Use
to move the flashing to the character you want to change.
4. Use
and
to change character.
For details on inputting characters, see "To input new Data Bank data" (steps 3 for
name input and 7 for number).
5. After making the changes that you want, press
to store them and return to the
Data Bank Mode.
To delete Data Bank data
1. In the Data Bank Mode, scroll through the data items and display the one you want
to delete.
2. Hold down
until the first character of the name starts to flash on the display.
3. Press
and
at the same time to delete the data item.
At this time the cursor appears on the display, ready for input.
4. Input data or press
to return to the Data Bank Mode.
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.
The alarm sounds whenever the time displayed in the
Timekeeping Mode reaches the alarm time and the Hour-
ly Time Signal sounds at the top of each hour, regard-
less of whether you are using the Home Time screen or
Dual Time screen.
Note that switching between the Home Time and Dual
Time screen in the Timekeeping Mode has no effect on
the Daily Alarm time setting. If you set an alarm time of
4:00 pm for your Home Time and then change to the
Dual Time screen, the Daily Alarm will start to sound
when the Dual Time reaches 4:00 pm.
to
(space)
Press
Press
to
to
(space)
Press
Press
Hour : Minutes
Mode indicator
Alarm on indicator
Hourly time signal
on indicator
[Name Screen]
[Number Screen]
Press
NAME indicator
TEL indicator
To set the alarm time
1. Hold down
while in the Alarm Mode until the hour digits start to flash on the
display. The hour digits flash because they are
selected.
This operation will turn the Daily Alarm on automatically.
2. Press
to change the selection in the following sequence.
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 (no indicator) or afternoon (PM).
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 turn 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.
[Alarm ON Indicator/Hourly Time Signal ON Indicator]
To test the alarm
Hold down
while in the Alarm Mode to sound the alarm.
STOPWATCH MODE
The Stopwatch Mode lets you measure elapsed time, split
times, and two finishes. The range of the stopwatch is 59
minutes, 59.99 seconds.
C
C
C
C
C
C
C
C
C
C
C
D
D
D
D
D
D
D
D
D
B
B
B
B
B
B
B
B
B
B
B
A
A
A
A
A
A
A
- 4 -
ADL
ADELAIDE
+9.5
ANC
ANCHORAGE
09
BER
BERLIN
+01
BKK
BANGKOK
+07
CAI
CAIRO
+02
CCS
CARACAS
04
CHI
CHICAGO
06
DAC
DHAKA
+06
DEL
DELHI
+5.5
DEN
DENVER
07
DXB
DUBAI
+04
GUM
GUAM
+10
HKG
HONG KONG
+08
HNL
HONOLULU
10
IST
ISTANBUL
+02
JED
JEDDAH
+03
JRS
JERUSALEM
+02
KBL
KABUL
+4.5
KHI
KARACHI
+05
LAX
LOS ANGELES
08
LON
LONDON
+00
MEX
MEXICO CITY
06
MIA
MIAMI
05
MIL
MILAN
+01
MLE
MALE
+05
NOU
NOUMEA
+11
NYC
NEW YORK
05
PAR
PARIS
+01
PPG
PAGO PAGO
11
RGN
YANGON
+6.5
RIO
RIO DE JANEIRO
03
ROM
ROME
+01
SEL
SEOUL
+09
SFO
SAN FRANCISCO
08
SIN
SINGAPORE
+08
SYD
SYDNEY
+10
THR
TEHRAN
+3.5
TYO
TOKYO
+09
WLG
WELLINGTON
+12
YVR
VANCOUVER
08
CITY CODE TABLE
CHARACTER LIST
1
(space)
11
J
21
T
31
3
2
A
12
k
22
U
32
4
3
B
13
L
23
V
33
5
4
C
14
M
24
W
34
6
5
D
15
N
25
X
35
7
6
E
16
O
26
Y
36
8
7
F
17
P
27
Z
37
9
8
G
18
Q
28
^
38
t
9
H
19
R
29
1
39
-
10
I
20
S
30
2
*
Based on data as of December 1996.
City
City
GMT
Code
differential