(WITHOUT PRICE)
SERVICE MANUAL
& PARTS LIST
REF. NO. S/M-581
NOVEMBER 1997
QW-1819
MODULE NO.
R
BGC-100A
INDEX
- 1 -
CONTENTS
1. SPECIFICATIONS : QW-1819
1. SPECIFICATIONS · · · · · · · · · · · · · · · · · · · · · · · · · · · 1
2. OPERATION CHART · · · · · · · · · · · · · · · · · · · · · · · · · 2
3. DRAWINGS · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 5
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 · · · · · · · · · · · · · · · · · · · 9
6-1. AC (ALL CLEAR) AND REMOVING OF MODULE · · · 9
6-2. ACCURACY CHECKING · · · · · · · · · · · · · · · · · · · · 9
Function
· Shock resistant
· Electro-luminescent backlight
· World time
30 time zones, city code display, difference between
GMT display, daylight saving time on/off
· Memory function
Memory capacity: Up to 30 sets of data,
each set including name and telephone number
Other: Auto sort function
· 1/100 sec. stopwatch
Measuring capacity: 23:59'59.99"
Measuring mode: Elapsed time
· Regular timekeeping: Hr, min, sec, am/pm, mo, date, day
· Auto-calendar (pre-programmed until the year 2039)
· Daily alarm
· Hourly time signals
· 12/24-hour formats
· Auto display function
Item
Detail
Item
Detail
Battery
CR1616
Accuracy
±15sec./month
Battery life
Approx. 24 months
Accuracy setting system Trimmer capacitor
Current consumption
1.22
µA maximum
Accuracy checking
See page 9
Alarm system
Piezo plate on Back cover
Accuracy setting
+0.25~+0.35sec./day
- 2 -
2. OPERATION CHART : QW-1819
GENERAL GUIDE
P
SIG
ALM
Timekeeping Mode
Animation area
A
SIG
ALM
Alarm Mode
v
v
Telememo Mode
v
World Time Mode
Stopwatch Mode
SIG
ALM
v
v
SIG
ALM
A
SIG
ALM
Press
TIMEKEEPING MODE
This section provides information on setting the time, using
the backlight, and the various animated figures that appear.
In the Timekeeping Mode, press
to illuminate the display
for about two seconds.
To set the time and date
1. Press
while in the Timekeeping Mode. The seconds
digits flash on the display because they are
selected.
2. Press
to change the selection in the following
sequence.
P
SIG
ALM
Day
Animation area
Seconds
Day of week
PM indicator
Hour : Minutes
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.
4. While hour, minutes, year, month, or day is selected (flashing), press
to increase
the number. The 12/24-hour setting is selected (flashing), press
to switch between
the 12-hour ( 12H ) and 24-hour (
) formats.
Holding down
changes the current selection at high speed.
With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for
times in the range of noon to 11:59 pm and the A (AM) indicator appears to the left of
the hour digits for times in the range of midnight to 11:59 am.
With the 24-hour format, times are indicated in the range of 00:00 to 23:59, without any
indicator.
5. After you set the time and date, press
to return to the Timekeeping Mode.
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.
About the backlight
In the Timekeeping Mode and World Time Mode, press
to illuminate the display for
about two seconds.
The backlight may not turn on when you press
under certain conditions in the
World Time Mode. See "To view the time in another zone" for details.
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 turns off whenever an alarm sounds.
About animated figures
The following are the animated figures that appear in each mode.
G (G-SHOCK) mark
This mark appears briefly in the Timekeeping Mode at the 00, 20, and 40
second point of each minute.
Rotating Globe
This rotating globe appears in the World Time Mode.
Leopard
The leopard appears in the Stopwatch Mode. It runs while a stopwatch
timing operation is in progress.
Seconds
Hour
Minutes
Day
Month
Year
12/24-Hour
Format
WORLD TIME MODE
The World Time Mode shows the current time in 29
time zones (28 cities) around the world.
The time settings of the Timekeeping Mode and
the World Time Mode are independent, so you must
make separate settings for each. Note, however,
that the seconds counts for both modes are
synchronized with each other.
Whenever you change the time setting for any city
in the World Time Mode, the settings of all other
cities are changed accordingly.
The GMT differentials used by this watch are based
on Universal Time Coordinated (UTC) data.
The time zone that is displayed when you leave
the World Time Mode will still be displayed when
you enter the World Time Mode again.
A rotating globe is normally in the animation area of the display while in the World Time
Mode. The rotating globe is replaced by the city code for the currently displayed time
at the 00, 20, and 40 second point of each minute. The city code remains displayed for
about two seconds.
To view the time in another zone
1. While in the World Time Mode, press
to display the city code for the time currently
shown on the display.
Pressing
also turns on the backlight for about two seconds.
2. Press
again to scroll forward through the city codes (time zones).
Each press of
advances to the next sequential city code.
Holding down
scrolls at high speed.
If you want to press
more than once to scroll through city codes, note that you
should not let more than about three seconds pass between
button operations.
Otherwise, the scrolling operation will be cancelled, and the next press of
will simply
display the current city code and turn on the backlight, as in step 1 of the above
procedure.
For full information on city codes, see the "CITY CODE TABLE".
Animation area
A
SIG
ALM
City code
GMT differential
Current time in
the selected city
To set the World Time
1. In the World Time Mode, use
to scroll through the
time zones and find the one you want.
2. Press
. The DST On/Off setting flashes on the display
because it is
selected.
The DST indicator flashes along with the current on/off
setting.
3. Press
to change the selection in the following
sequence.
4. While DST On/Off setting is selected (flashing), press
toggle Daylight Saving Time
on (ON) and off (OF ). While the hour or minutes digits are selected, press
to
increase the setting.
Holding down
while the hour or minutes digits are selected changes the setting at
high speed.
The 12-hour/24-hour format of the World Time matches the format you select in the
Timekeeping Mode.
5. After you set the time, press
to return to the World Time 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 World Time Mode automatically.
To switch between standard time and daylight saving time
Daylight saving time (DST), which is also sometimes called "summer time," advances
the time for one hour, as is the custom in some areas during the summer. Remember
that not all countries or even local areas use Daylight Saving Time.
1. In the World Time Mode, display the time zone whose standard/daylight saving time
setting you want to change.
You can make separate daylight saving time settings for each individual city.
2. Press
. The DST On/Off setting flashes on the display because it is
selected.
The DST indicator flashes along with the current on/ off setting.
3. Press
to toggle Daylight Saving Time on (ON) and off (OF ).
4. After you are finished making the setting you want, press
to return to the World
Time Mode.
The DST indicator is on the display whenever you display a city for which daylight
saving time is turned on.
DST
A
SIG
ALM
DST indicator
DST On/Off
Hour
Minutes
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.
The animation area shows different animated characters and graphics, depending on
the mode and the operation being performed.
M
M
M
M
M
M
M
M
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
A
A
A
A
A
A
A
A
A
A
- 3 -
TELEMEMO MODE
The Telememo 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" for details on
how the watch sorts data.
The new data screen appears when there is
no data stored in memory, or when you scroll
to the location between the last and the first
data items stored in memory.
The data item on the display when you exit
the Telememo Mode appears first the next
time you enter the Telememo Mode.
If you do not operate any button for a few
minutes while in the Telememo Mode, the
watch automatically goes back to the
Timekeeping Mode.
SIG
ALM
SIG
ALM
Remaining memory
Name
Telephone
number
SIG
ALM
[New Data Screen]
To edit Telememo data items
1. In the Telememo Mode, scroll through the data items and display the one you want to
edit.
2. Press
and a cursor appears in the animation area.
3. Use
to move the flashing to the character you want to change.
4. Use
to change the character.
For details on inputting characters, see "To input new Telememo 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
Telememo Mode data screen.
To delete Telememo data
1. In the Telememo Mode, scroll through the data items and display the one you want to
delete.
2. Press
and a cursor appears in the animation area.
3. Hold down
and
at the same time until the message CLR (clear) appears in the
animation area.
At this time the cursor appears in the animation area, ready for input.
4. Input data or press
to return to the Telememo Mode data screen.
STOPWATCH MODE
The Stopwatch Mode measures elapsed time and
cumulative elapsed time. The range of the stopwatch is 23
hours, 59 minutes, 59.99 seconds.
To measure elapsed time
1. Press
to start the stopwatch.
2. Press
to stop the stopwatch.
3. Press
to clear the stopwatch to all zeros.
Instead of pressing
, you can also clear the stopwatch
by holding down
for a few seconds.
1/100 second
SIG
ALM
Hours
Seconds
Minutes
To measure cumulative elapsed time
1. Press
to start the stopwatch.
2. Press
to stop the stopwatch.
3. Press
again to resume timing from the time shown on the display.
You can repeat steps 2 and 3 as many times as you like.
4. Press
to clear the stopwatch to all zeros.
Instead of pressing
, you can also clear the stopwatch by holding down
for a few
seconds.
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. Press
while in the Alarm Mode. The hour digits flash
on the display because they are
selected.
· This operation automatically turns on the Daily Alarm.
2. Press
to change the selection in the following
sequence.
A
SIG
ALM
AM indicator
Hour : Minutes
Hourly time signal
on indicator
Alarm on
indicator
Hour
Minutes
3. Press
to increase the selected digits. Holding down
increases 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 a.m. ( A indicator) or p.m. ( P indicator).
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.
J
SIG ALMH
SIG ALM
SIG ALMH
J
SIG ALM
Daily Alarm
Only
Hourly Time
Signal Only
Both ON
Both OFF
To input new Telememo data
1. In the Telememo Mode, press
until the new data screen
appears.
In the Telememo Mode, the animation area of the display
is used for name input and display.
If the message FULL appears in the number area of 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. Press
and a cursor appears in the animation area.
3. Use
to change the character at the cursor position in
the animation area. The character changes in the following
sequence.
SIG
ALM
Number area
Animation area
Cursor
(space)
A to Z
to 9
.
-
Holding down
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 the steps 3 and 4 until your text is complete.
You can input up to eight characters for the name.
6. After you input a name, use
to move the cursor to the number area.
There are eight spaces provided for input of characters of each name, though only
three characters are visible at a time in the animation area. If the name you input has
less than eight characters, use
to move the cursor to the eighth space (which
means you would press
three times after inputting a 5-character name, for example).
Pressing
again while the cursor is at the eighth space causes it to jump down to the
first digit in the number area. When the cursor is at the 12th digit of the number area,
pressing
causes it to jump back up to the first character of the name.
7. Use
to change the character (hyphen, number, or space) at the cursor position in
the number area. The character changes in the following sequence.
Holding down
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 for the number.
10. After inputting your data, press
to store it and return to the Telememo Mode data
screen (without the cursor).
If you do not perform any button operation for few minutes while the cursor is on the
display, the watch automatically returns to the Telememo Mode data screen.
The animation area of the display can show only three characters at a time, so longer
text scrolls continuously from right to left.
The number area can show up to six digits at one time. If a number has more than six
digits, the display automatically switched between the first six digits (counting forward
from the first digit) and the last six digits (counting backward from the last digit) of the
number. This means that if a number is 12 digits long, the number area switches
between the first six digits and the last six digits. If a number is seven digits long, the
number area switches between digits 1 through 6, and digits 2 through 7.
Animation Area
Number Area
03-3347-4811
Last letter of text
Separator
(inserted automatically)
SIG
ALM
SIG
ALM
03-123-45
SIG
ALM
SIG
ALM
To recall Telememo data
In the Telememo Mode, press
to scroll forward through stored data items.
Holding down
scrolls through the data at high speed.
(space)
0 to 9
-
M
M
M
M
M
M
M
M
M
M
M
M
M
M
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
- 4 -
AUTO DISPLAY FUNCTION
The Auto Display function of this watch continually changes
the contents of the digital display. Note that you cannot use
any of the watch's other functions (except for backlight) 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 the 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).
P
SIG
ALM
CITY CODE TABLE
City
Code
PPG
HNL
ANC
LAX
DEN
CHI
NYC
CCS
RIO
City
PAGO PAGO
HONOLULU
ANCHORAGE
LOS ANGELES
DENVER
CHICAGO
NEW YORK
CARACAS
RIO DE
JANEIRO
GMT
Differential
11
10
09
08
07
06
05
04
03
02
01
Other major cities in same time zone
PAPEETE
NOME
SAN FRANCISCO, LAS VEGAS,
VANCOUVER, SEATTLE, DAWSON CITY
EL PASO, EDMONTON
HOUSTON, DALLAS/FORT WORTH, NEW
ORLEANS, MEXICO CITY, WINNIPEG
MONTREAL, DETROIT, MIAMI, BOSTON,
PANAMA CITY, HAVANA, LIMA, BOGOTA
LA PAZ, SANTIAGO, PORT OF SPAIN
SAO PAULO, BUENOS AIRES, BRASILIA,
MONTEVIDEO
AZORES, PRAIA
City
Code
LON
PAR
CAI
JRS
JED
THR
DXB
KBL
KHI
DEL
DAC
RGN
City
LONDON
PARIS
CAIRO
JERUSALEM
JEDDAH
TEHRAN
DUBAI
KABUL
KARACHI
DELHI
DHAKA
YANGON
GMT
Differential
+00
+01
+02
+03
+3.5
+04
+4.5
+05
+5.5
+06
+6.5
Other major cities in same time zone
DUBLIN, LISBON, CASABLANCA, DAKAR,
ABIDJAN
MILAN, ROME, MADRID, AMSTERDAM,
ALGIERS, HAMBURG, FRANKFURT,
VIENNA, STOCKHOLM, BERLIN
ATHENS, HELSINKI, ISTANBUL, BEIRUT,
DAMASCUS, CAPE TOWN
KUWAIT, RIYADH, ADEN, ADDIS ABABA,
NAIROBI
SHIRAZ
ABU DHABI, MUSCAT
MUMBAI, CALCUTTA
COLOMBO
City
Code
BKK
HKG
TYO
ADL
SYD
NOU
WLG
* Based on data as of September 1997.
City
BANGKOK
HONG KONG
TOKYO
ADELAIDE
SYDNEY
NOUMEA
WELLINGTON
GMT
Differential
+07
+08
+09
+9.5
+10
+11
+12
Other major cities in same time zone
JAKARTA, PHNOM PENH, HANOI,
VIENTIANE
SINGAPORE, KUALA LUMPUR, BEIJING,
TAIPEI, MANILA, PERTH, ULAANBAATAR
SEOUL, PYONGYANG
DARWIN
MELBOURNE, GUAM, RABAUL
PORT VILA
CHRISTCHURCH, NADI, NAURU ISLAND
CHARACTER LIST
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
I
J
L
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
1
2
3
5
6
8
(space)
A
B
C
D
E
F
H
37
38
39
9
.
-
M
M
M
B
A