Page 1
SERVICE MANUAL
& PARTS LIST
REF. NO. S/M-700
JUL. 2000
MODULE NO.
QW-2171
GM-100
R
(WITHOUT PRICE)
Page 2
CONTENTS
1. SPECIFICATIONS: QW-2171..................................................................... 1
2. OPERATION CHART: QW-2171................................................................ 2
3. DRAWINGS: QW-2171
3-1. BLOCK DIAGRAMS ........................................................................... 5
3-2. CHECKING TERMINALS AND COMPONENT .................................. 7
4. EXPLODED VIEW: QW-2171..................................................................... 8
5. PARTS LIST: QW-2171.............................................................................. 9
6. PRECAUTIONS FOR REPAIR: QW-2171
6-1. AC (ALL CLEAR) AND REMOVING OF MODULE ........................... 10
6-2. ACCURACY CHECKING ................................................................... 10
1. SPECIFICATIONS: QW-2171
Item Detail
Page
Battery CR2016
Battery life Approx. 1.5 years
Current consumption 4.705 µA maximum
Alarm system Piezo plate on Back cover
Accuracy ±15 sec./month
Accuracy setting system Trimmer capacitor
Accuracy checking See page 10
Functions
•Shock resistant (G-SHOCK)
•Electro-luminescent backlight
Auto light switch, afterglow
•Day Countdown with 5 Memories
Automatically counts down the days from the current date to a target date.
A mark appears on the display to let you know when a target date is
reached.
• Free menos
5 independent free memos (up to 8 characters and 16 numerals)
• 1/100-second stopwatch
Measuring capacity: 23:59'59.99''
Measuring modes: Elapsed time, split time,1st-2nd place times
• Musical alarms
5 melodies (each presettable with a unique 2-part harmony) and beep
• Hourly time signal
• Auto-calender (to year 2039)
• 12/24-hour formats
• Regular timekeeping: Hour, min, sec, am/pm, month, date, day, daylight
saving on/off
— 1 —
Page 3
2
2. OPERATION CHART: QW-2171
CC
• Press
C to change from mode to mode.
CC
EE
• Pressing
E in any mode besides the Alarm Mode illuminates to the display for about three seconds. The backlight is disabled while a setting screen is on the display.
EE
• If you do not perform any operation for a few minutes while a setting screen (with flashing digits) is on the display, the watch automatically exits the setting screen.
• If you do not perform any operation for a few minutes in any mode besides stopwatch mode, the watch automatically reverts to the normal timekeeping screen.
Timekeeping Mode Day Counter Mode Alarm Mode Stopwatch Mode Memo Mode
CC
Press
C.
CC
GENERAL GUIDE
TIMEKEEPING MODE
Seconds
Minutes
DST indicator 2
DST indicator
Press . Press .
Beep
Loud
Day
DD
Press
D to toggle between 12-hour and 24-hour time-
DD
keeping.
• With 12-hour timekeeping, times between midnight and
noon are indicated by A (am), while times between noon
and midnight are indicated by P (pm).
• The A and P indicators do not appear for 24-hour time-
keeping.
BB
• Pressing
B plays a randomly selected melody. To stop
BB
a playing melody, press any button besides
EE
• Pressing
E while a melody is playing toggles the dis-
EE
play between an animated character and the name of
the melody.
∗
See the “MELODY LIST” for the names of melodies.
EE
• Press
E to illuminate the display for about three sec-
EE
onds. When 12-hour timekeeping is being used, press-
EE
ing
E also displays an animated character.
EE
AA
A until the seconds digits flash on the
AA
Volume
(VOL)
3.While the seconds setting is selected (flashing), press
• If you press
range of 30 to 59, the seconds are reset to 00 and 1 is
added to the minutes. If the seconds setting is in the
range of 00 to 29, the minutes count is unchanged.
• While the DST (Daylight Saving Time) setting is selected,
press
• DST indicator 1 is displayed in the Timekeeping Mode
setting screen only when the DST setting is selected. It
shows ON when the DST setting is on, and OFF when
the DST setting is off.
• DST indicator 2 is displayed in the Timekeeping Mode,
Day Counter Mode and Alarm Mode when the DST setting is turned on.
Sound
(SOUND)
DD
BB
D or
B to reset it to 00.
DD
BB
DD
BB
D or
B while the seconds setting is in the
DD
BB
DD
BB
D or
B to toggle it on and off.
DD
BB
DD
BB
D or
B to turn the beep and musical
DD
BB
Musical tone Off
DD
BB
D or
B to toggle it between loud and soft.
DD
BB
Press or .
DD
D to make the display darker, or
DD
AA
A to exit the setting screen.
AA
Soft
DD
D to increase it or
DD
EE
E.
EE
EE
E to move the
EE
MonthDay
BB
B to
BB
BB
B to de-
BB
Month
Day of week
Hour
PM indicator
Timekeeping Mode Settings
In addition to settings for the current time and date, the Timekeeping Mode setting
screen also lets you turn button tones and melody play on and off, adjust tones and
melody volume, and adjust display contrast.
To make Timekeeping Mode settings
1.While in the Timekeeping Mode, hold down
display, indicating the setting screen.
CC
2.Press
C to move the flashing in the sequence shown below. Press
CC
flashing in the opposite direction.
Press . Press .
Seconds DST Hour Minutes Year
Contrast
(CNT)
DST indicator 1
• While the SOUND setting is selected, press
tone on and off, as shown below.
• While the VOL setting is selected, press
• While the CNT setting is selected, press
make it lighter.
• While any other setting is selected (flashing), press
crease it. Holding down either button changes the setting at high speed.
4.After you make the settings you want, press
• The day of the week is automatically set in accordance with the date.
• The date can be set within the range of January 1, 2000 to December 31, 2039.
• The watch's built-in full automatic calendar automatically makes allowances for dif-
ferent month lengths and leap years.
Once you set the date, there should be no reason to change it except after the
replacement of the watch's battery.
ABOUT THE BACKLIGHT
About the Auto Light Switch Function
When the auto light switch 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 light switch 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.
Parallel to ground
• Static electricity or magnetic force can interfere with proper operation of the auto
light switch 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 turning the face of the watch towards you. This does not necessarily indicate
malfunction of the backlight.
To switch the auto light switch function on and off
In the Timekeeping Mode, hold down
function on and off.
• The auto light switch indicator is shown on the display in all modes while the auto
light switch function is on.
• In order to protect against running down the battery, the auto light switch function is
automatically turned off approximately three hours after you turn it on. Repeat the
above procedure to turn the auto light switch function back on if you want.
EE
• Pressing
E in any mode besides the Alarm Mode illuminates the display for about
EE
three seconds, regardless of the auto light switch’s on/off setting.
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 backlight 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 where there is the danger of accidents, especially in locations 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 light switch 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 light switch can create a distraction, which can result in a traffic accident and serious personal injury.
More than 15 degrees
too high
DD
D for two seconds to turn the auto light switch
DD
Auto light switch
indicator
DD
Hold down
D.
DD
ON OFF
40
°
More than 15 degrees
too low
— 2 —
Page 4
DAY COUNTER MODE
Hourly Time Signal
indicator 1
Hourly Time Signal
indicator 2
Hourly Time Signal
indicator 3
Alarm indicator 1
Alarm indicator 2
Alarm indicator 3
Mode indicator
Text
ALARM MODE
Mode indicator
Melody name
Year
Month
Target Date
Day counter
record number
The Day Counter Mode lets you count the number of days from the Timekeeping
Mode’s current date to a specific target date.
• There are five Day Counter records, each of which can be assigned up to 12 characters of text and a target date.
• When a target date is reached, the DAYS indicator flashes on the display in the
Timekeeping Mode. The DAYS indicator also flashes in the Day Counter Mode
when the screen for the target date is on the display.
• The DAYS indicator flashes on the target date each year, regardless of the year
setting of the target date.
• The initial default date for a Day Counter record is 2001/1/1, and the text area
contains All spaces. (All spaces for the text display a series of hyphens “ – – – – – ”.)
Recalling Day Counter Data
In the Day Counter Mode, press
• The day count is a negative value whenever the target date comes before the current date.
• The display can show only five characters at a time. Longer text scrolls continuously from right to left. The symbol “
left is the last, and the character or digit to the right is the first.
To set the target date
1.In the Day Counter Mode, press
2.Hold down
This indicates the input screen.
3.Press
flashing in the opposite direction.
4. While the flashing is located within the text area, use
characters at the current location of the flashing. Holding down either button scrolls
through characters at high speed.
∗
See the “CHARACTER LIST” for details.
5. While any other setting is selected, press
Holding down either button changes the setting at high speed.
• Pressing
clears any input text and resets the date setting to the current date. At this time the
message “CLEAR” appears on the display.
• Pressing
area resets the date setting to the current date without affecting the text.
6.After you make the settings you want, press
• The date can be set within the range of January 1, 1940 to December 31, 2039.
Number of days
DD
D to scroll through the Day Counter record screens.
DD
” indicates that the character or digit to the
DD
D to display a record number you want to set.
AA
A until the first (leftmost) text character starts to flash on the display.
AA
CC
C to move the flashing in the sequence shown below. Press
CC
Press . Press .
Character 1
Press . Press .
Space A to Z Punctuation
Hyphen SymbolsNumbers
DD
BB
D and
B at the same time while the flashing is located within the text area
DD
BB
DD
BB
D and
B at the same time while the flashing is located within the date
DD
BB
DD
Day
Day
DAYS indicator
Character 12
YearMonth
DD
BB
D or
B to scroll through
DD
BB
DD
D to increase it or
DD
AA
A to exit the input screen.
AA
EE
E to move the
EE
Japanese
characters
BB
B to decrease it.
BB
Current time
Alarm number
Hour
You can set up to five melody alarms. When a Daily Alarm is turned on, its melody
alarm sounds for about 20 seconds at the preset time each day. Press any button
EE
(except
E) to stop the melody alarm after it starts to sound. Pressing
EE
melody is playing toggles the display between an animated character and the name
of the melody that is playing. When the Hourly Time Signal is turned on, the watch
beeps every hour on the hour.
To set the alarm time
1.While in the alarm Mode, press
DD
D to display the alarm number you want to set.
DD
Minutes
EE
E while a
EE
Alarm 1 Alarm 5Alarm 2 Alarm 3 Alarm 4
SIG: 00 (Hourly Time Signal)
2.Hold down
3.Press
4.While melody setting is selected, use
∗
∗
• While any other setting is selected, press
5.After you make the settings you want, press
• The format (12-hour and 24-hour) of the alarm time matches the format you select
• When setting the alarm time using the 12-hour format, take care to set the time
To stop a melody alarm
• Press any button (except
To turn a daily Alarm or the Hourly Time Signal on and off
1.Use
AA
A until the melody number starts to flash on the display, indicating the
AA
setting screen. The alarm is automatically turned on at this time.
CC
C to change the selection in the sequence shown below.
CC
Melody Name Hour Minutes
DD
BB
D or
B to scroll through melody names.
DD
BB
Setting Alarm Sound
– 0
Press .
Press .
See the “MELODY LIST” for the names of melodies.
Some melody alarms tune names may be displayed in abbreviated format.
Holding down either button changes the setting at high speed.
for normal timekeeping.
correctly as morning or afternoon.
DD
D to display the alarm you want to turn on or off, or the screen for turning the
DD
Hourly Time Signal on or off.
– 1
– 2
– 3
– 4
– 5
–
Ramdom play of melodies 1, 2, 3, 4 and 5
Melody 1
Melody 2
Melody 3
Melody 4
Melody 5
Beeper
DD
D to increase it or
DD
AA
A to exit the setting screen.
AA
EE
E) to stop a melody alarm after it starts to sound.
EE
BB
2.Press
B to toggle the displayed alarm or Hourly Time
BB
Signal on and off.
• Alarm indicator 1 is displayed in the alarm mode only. It
indicates the on/off status of the currently displayed
alarm only. Note that this indicator is used for different
purposes in other modes.
• Alarm indicator 2 is displayed in all modes when any of
the five alarms is turned on.
• Alarm indicator 3 is displayed in the Alarm Mode only.
It shows ON when the currently displayed alarm is on,
and OF when the currently displayed alarm is off.
BB
B to decrease it.
BB
— 3 —
• Hourly Time Signal indicator 1 is displayed in the Alarm
Mode only when the Hourly Time Signal is turned on.
Note that this indicator is used for different purposes in
other modes.
• Hourly Time Signal indicator 2 is displayed in all modes
when the Hourly Time Signal is turned on.
• Hourly Time Signal indicator 3 is displayed in the Alarm
Mode only. It shows ON when the Hourly Time Signal
is on, and OF when the Hourly Time Signal is off.
To test the alarm
In the Alarm Mode, display the alarm you want to sound,
and then press
also press
alarm time.
• To stop a playing melody or beep, press any button.
EE
E to play its melody or beep. You can
EE
EE
E to play an alarm’s melody while setting the
EE
Page 5
Mode indicator
Current time
Hours
Minutes
Seconds
1/100 second
Elapsed time measurement
Start
Split time measurement
Start
Split time and 1st-2nd place times
Start
The stopwatch Mode lets you measure elapsed time, split
times, and two finishes. The range of the stopwatch is 23
hours, 59 minutes, 59.99 seconds. You can use the EL
backlight by pressing
is operating.
Stop Re-start Stop Clear
Split Split release Stop Clear
Split Stop Split release Clear
First runner
finishes.
STOPWATCH MODE
EE
E at any time while the stopwatch
EE
Second runner
finishes.
Record time of
first runner.
Record time of
second runner.
CHARACTER LIST
MELODY LIST
1 Heartbreak hotel
2 (I can’t get no) Satisfaction
3 Walk this way
4 New year’s day
5 Smells like teen spirit
T-0030004
Mode indicator
Title
Memo number
To input a memo
1.In the Memo Mode, press
2.Hold down
3.Press
4.Use
∗
• Pressing
5.After you input the data you want, press
AA
A until the first (leftmost) character of the memo title starts to flash on
AA
the display. This indicates the input screen.
CC
C to move the flashing in the sequence shown below. Press
CC
flashing in the opposite direction.
Press . Press .
Title Character 1
Data Character 16
DD
BB
D or
B to scroll through characters at the current location of the flashing.
DD
BB
Holding down either button scrolls at high speed.
Press . Press .
Space A to Z Punctuation
Hyphen SymbolsNumbers
See the “CHARACTER LIST” for details.
DD
D and
DD
and data. At this time the message “CLEAR” appears on the display.
The Memo Mode lets you store up to five memos, each
with an eight-character title and 16 characters of data.
Recalling a Memo
In the Memo Mode, press
titles. When you find the title you want, press
screen alternates between the title and data.
• The display can show only five characters at a time.
Longer text scrolls continuously from right to left. The
” indicates that the character or digit to the
symbol “
left is the last, and the character or digit to the right is
the first.
• A series of hyphens “ – – – – – ” is displayed for a memo
that does not contain any data. The display can show
only five characters at a time.
DD
D to display the memo number you want to set.
DD
BB
B at the same time while inputting memo title or data clears all title
BB
DD
D to scroll through the Memo
DD
Title Character 8
Data Character 1
AA
A to exit the input screen.
AA
MEMO MODE
BB
B, and the
BB
EE
E to move the
EE
Japanese
characters
— 4 —
Page 6
3. DRAWINGS: QW-2171
3-1. BLOCK DIAGRAMS
PM
AM
LC1
L 3
L 6
L 5
L 4
K4
K3
L 7
Y12
L 9
L 8
L12
L11
L10
L15
L14
L13
L16
L17
L18
L19
L20
L21
L22
L23
L24
L25
L26
K9
K2
K1
K0
Y0
X0
a8 a6
f8
b9
c9
a5
f5
b5
g5
e5
c5
b8
g8
c8
e8
d8
a4
f4
g4
e4
d4
ALM
SIG
b4
c4
COL
DST
a3
f3
b3
g3
c3
e3
d3d5
a2
f2
g2
e2
d2
AUTO EL
b2
c2
X28
a7
f7
g7
e7
d7
a1
f1
g1
e1
d1
K8
LC2
L27
L28
K7
K6
K5
f6
b7
c7
b1
c1
b6
g6
c6
e6
d6
a0
f0
b0
g0
c0
e0
d0
COM.
SEG.
L3
L4
L5
L6
L7
L8
L9
L10
L11
L12
L13
L14
L15
L16
L17
L18
L19
L20
L21
L22
L23
L24
L25
L26
L C 1
c9
e8
g8
c8
X6Y12
X7Y12
X8Y12
X9Y12
X10Y12
X11Y12
X12Y12
X13Y12
X14Y12
X15Y12
X16Y12
X17Y12
X18Y12
X19Y12
X20Y12
X21Y12
X22Y12
L C 2
d8
X6Y11
X7Y11
X8Y11
X9Y11
X10Y11
X11Y11
X12Y11
X13Y11
X14Y11
X15Y11
X16Y11
X17Y11
X18Y11
X19Y11
X20Y11
X21Y11
X22Y11
L C 3
K2
X0Y8
X1Y8
X2Y8
X3Y8
X4Y8
X5Y8
X6Y8
X7Y8
X8Y8
X9Y8
X10Y8
X11Y8
X12Y8
X13Y8
X14Y8
X15Y8
X16Y8
X17Y8
X18Y8
X19Y8
X20Y8
X21Y8
X22Y8
LC8
LC7
L C 4
K3
X0Y9
X1Y9
X2Y9
X3Y9
X4Y9
X5Y9
X6Y9
X7Y9
X8Y9
X9Y9
X10Y9
X11Y9
X12Y9
X13Y9
X14Y9
X15Y9
X16Y9
X17Y9
X18Y9
X19Y9
X20Y9
X21Y9
X22Y9
LC6
L49
L50
L C 5
K4
X0Y10
X1Y10
X2Y10
X3Y10
X4Y10
X5Y10
X6Y10
X7Y10
X8Y10
X9Y10
X10Y10
X11Y10
X12Y10
X13Y10
X14Y10
X15Y10
X16Y10
X17Y10
X18Y10
X19Y10
X20Y10
X21Y10
X22Y10
L48
L47
L C 6
b9
f8
a8
b8
X6Y5
X7Y5
X8Y5
X9Y5
X10Y5
X11Y5
X12Y5
X13Y5
X14Y5
X15Y5
X16Y5
X17Y5
X18Y5
X19Y5
X20Y5
X21Y5
X22Y5
DAYS
L40
L41
L42
L43
L44
L45
L46
L C 8
L C 7
K0
X0Y7
X0Y6
X1Y7
X1Y6
X2Y7
X2Y6
X3Y7
X3Y6
X4Y7
X4Y6
X5Y7
X5Y6
X6Y7
X6Y6
X7Y7
X7Y6
X8Y7
X8Y6
X9Y7
X9Y6
X10Y7
X10Y6
X11Y7
X11Y6
X12Y7
X12Y6
X13Y7
X13Y6
X14Y7
X14Y6
X15Y7
X15Y6
X16Y7
X16Y6
X17Y7
X17Y6
X18Y7
X18Y6
X19Y7
X19Y6
X20Y7
X20Y6
X21Y7
X21Y6
X22Y7
X22Y6
L39
L38
L37
L36
L35
L34
L33
L32
L31
L30
L29
LC5
LC4
LC3
COM.
L C 1
SEG.
L27
K1
L28
L29
L30
L31
L32
L33
L34
L35
L36
L37
L38
L39
L40
L41
L42
L43
L44
L45
L46
L47
L48
L49
L50
e7
g7
c7
e6
g6
c6
X22Y3
X21Y3
X20Y3
X19Y3
X18Y3
X17Y3
X16Y3
X15Y3
X14Y3
X13Y3
X12Y3
X11Y3
X10Y3
X9Y3
X8Y3
X7Y3
X6Y3
L C 2
d7
d6
X22Y2
X21Y2
X20Y2
X19Y2
X18Y2
X17Y2
X16Y2
X15Y2
X14Y2
X13Y2
X12Y2
X11Y2
X10Y2
X9Y2
X8Y2
X7Y2
X6Y2
L C 3
X23Y8
X24Y8
X25Y8
X26Y8
X27Y8
X28Y8
K7
b0
a0
f0
b1
a1
b2
a2
AUTO EL
DST
a3
SIG
ALM
b4
a4
a5
f5
PM
LC 4
X23Y9
X24Y9
X25Y9
X26Y9
X27Y9
X28Y9
K8
c0
g0
c1
g1
f1
c2
g2
f2
b3
g3
f3
COL
g4
f4
b5
g5
AM
L C 5
X23Y10
X24Y10
X25Y10
X26Y10
X27Y10
X28Y10
K9
d0
e0
DAYS
d1
e1
d2
e2
c3
d3
e3
c4
d4
e4
c5
d5
e5
L C 6
f7
a7
b7
f6
a6
b6
X22Y4
X21Y4
X20Y4
X19Y4
X18Y4
X17Y4
X16Y4
X15Y4
X14Y4
X13Y4
X12Y4
X11Y4
X10Y4
X9Y4
X8Y4
X7Y4
X6Y4
L C 7
X23Y6
X24Y6
X25Y6
X26Y6
X27Y6
X28Y6
K5
X22Y1
X21Y1
X20Y1
X19Y1
X18Y1
X17Y1
X16Y1
X15Y1
X14Y1
X13Y1
X12Y1
X11Y1
X10Y1
X9Y1
X8Y1
X7Y1
X6Y1
L C 8
X23Y7
X24Y7
X25Y7
X26Y7
X27Y7
X28Y7
K6
X22Y0
X21Y0
X20Y0
X19Y0
X18Y0
X17Y0
X16Y0
X15Y0
X14Y0
X13Y0
X12Y0
X11Y0
X10Y0
X9Y0
X8Y0
X7Y0
X6Y0
— 5 —
Page 7
LCD
VCC
WPWPSCL
SDA
Vss A2 A1 A0
EEPROM
Vcc
SCL
LL2
Di2
PZ
SDA
R2
C12
Tr1
Xtal
CT
C9
+
BACK
FRONT
L3 L50 LC1 LC8
XTB
L1 , L2 * 1
XT
L51 ~ L52 * 1
AC
T1
T2
T3
VREF1
GNDA
VREF
C11
VDD2A
LD1*1 VDD2 GND VCH VDSP VDD1 VC1 VC2 VHF VC3 VC4VDD3
+
BAT
C6
EL
LL1
C5
GND
L-
VOUT
L+
SDI*1
CSB*1
TOTAL 107 PINS
BONDING 98 PINS
Display 60
Others 47
C4
E'
CLF2
INV
CLF1
V+
LD2*1
EMP*1
LSI
C3
C10
BD1 BD2 MIN
C1
C2
ENV SDOSCK SCUT
C8
KI1
KI2
KI3
KI4
KI5
KI8
KC5
KI9
KC4
KC3
KC2
KI7
KI6
KC1
C7
✽ 1. No bonding
S1
S2
S3
S4
F0
SK *2
— 6 —
Page 8
3-2. CHECKING TERMINALS AND COMPONENT
8. Cushion/6
(7211 0064)
4. Oscillator/Crystal
Xtal
(7110 6302)
GND
VOUT
Di2
XTB
XT
PCB WITH LSI
VDD2
GND
VCC
SCUT
WP
VCC
VCC
C9 Capacitor/Chip C4 Capacitor/Chip
C3 Capacitor/Chip
GND
GND
XT
VDD2
KC5
KI8
L-
GND
L+
LVOUT
L+
C2 Capacitor/Chip
GND
L
Diode
GND
KI9
KC4
KC3
KC2
KI7 KC2
7. Cushion/506
(7211 9631)
CT 3.
GND
VREF
GND
GND
BD2
BD1
A4
KI6
BD1
BD2 VDD2
VDD2
KI6
KI6
VREF
KI8
KC5
Capacitor/Trimmer
(1001 0950)
KI4
GND
BD1
L
KI1
BD2
KC1
CLF2
CLF1
VDD2
Capacitor/Tantalum
C6
VDD2
GND
SD0
CLF2
SCK
CLF1
KI5
VDD2
VDD2
SCK
VCH
SD0
WP
VCC
WP
VCC
GND
AC
KI2
GND
GND
VDD1
GND
VDD3
VDD3
VDSP
VC1
VCH
GND
GND
GND
GND
GND
VDSP
GND
VHF
VC1
VC2
VC3VC4
KI3
GND
Capacitor/Chip
C12
Top view of P.C.B. ass'y
Tr1
R2
Resistor/Chip
Capacitor/Chip
C11
Transistor
CoilLL2
5. Sensor/Tilt
SK
(7105 5275)
— 7 —
INV
CoilLL1
7. Cushion/506
(7211 9631)
Capacitor/Chip
C10
Bottom view of P.C.B. ass'y
Inverter
C7 Capacitor/Chip
Capacitor/Tantalum
C5
Memory/External
C8 Capacitor/Chip
C1 Capacitor/Chip
Page 9
4. EXPLODED VIEW: QW-2171
2 (1001 6311)
13 (7230 0616)
1a (1001 6312)
1b (1001 6313)
12 (1001 6310)
14 (7230 0441)
11 (7233 0952)
10 (1001 6309)10 (1001 6309)
PCB (Unrepairable)
6 (7236 2086)
9 (7231 1952)
Battery/Lithium
(CR2016)
— 8 —
Page 10
5. PARTS LIST: QW-2171
-
-
-
p
p
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 ---------------------------------------------B Rank ---------------------------------------------C Rank ----------------------------------------------
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".
Very Important
Important
Less important
Item Code No. Parts Name S
7640 3253 MODULE/WITHOUT MOVEMENT QW-2171YC-02TK GM-100-1A 1 A
7640 3254 MODULE/WITHOUT MOVEMENT QW-2171YC-03TK GM-100-2/8 1 A
1a 1001 6312 LCD C2171-02P QW-2171YC-02TK 1 A
1b 1001 6313 LCD C2171-03P QW-2171YC-03TK 1 A
2 1001 6311 EL YEL-2171-A-01 QW-2171YC-02TK/03TK 1 A
3 1001 0950 CAPACITOR/TRIMMER CTZ2E-30C-W2-P QW-2171YC-02TK/03TK 1 B
4 7110 6302 OSCILLATOR/CRYSTAL DT-26S10 QW-2171YC-02TK/03TK 1 B
5 7105 5275 SENSOR/TILT TS-2418-P QW-2171YC-02TK/03TK 1 B
6 7236 0286 CONTACT/BATTERY (–) 1650 Q357954C-1 QW-2171YC-02TK/03TK 1 C
7 7211 9631 CUSHION/506 Q49364-1 QW-2171YC-02TK/03TK 2 C
8 7211 0064 CUSHION/6 Q4914-1 QW-2171YC-02TK/03TK 1 C
9 7231 1952 HOLDER/BATTERY 2058 Q253743-1 QW-2171YC-02TK/03TK 1 C
10 1001 6309 INTERCONNECTOR/2171 Q466259-1 QW-2171YC-02TK/03TK 2 C
11 7233 0952 SHEET/INSULATION 1028 Q434476-1 QW-2171YC-02TK/03TK 1 C
12 1001 6310 SPACER/PRINTED 2171-1 Q466298-1 QW-2171YC-02TK/03TK 1 C
13 7230 0616 SPRING/COIL 1199-1 Q437728B-1 QW-2171YC-02TK/03TK 2 B
14 7230 0441 SPRING/COIL 1199-3 Q437730-1 QW-2171YC-02TK/03TK 2 B
BATTERY/LITHIUM CR2016 QW-2171YC-02TK/03TK 1
For the
rices and minimum order/supply quantities of the above parts, refer to the Parts Price List P.P.L.-560.
ecification Applicable Q R
Notes: Q – Used quantity
R – Rank
— 9 —
Page 11
6. PRECAUTIONS FOR REPAIR: QW-2171
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 negative (–) side of 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.
Metallic tweezers
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 D button, press A and C buttons at the normal time keeping 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”
Push any button except for D 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.
AB
CD
E
QW-2171
— 10 —
Page 12
CASIO TECHNO CO.,LTD.
Overseas Service Division
Nishi-Shinjuku Kimuraya Bldg. 1F
5-25, Nishi-Shinjuku 7-Chome
Shinjuku-ku, Tokyo 160-0023, Japan
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