Casio QW-2983 Service Manual
SERVICE MANUAL
& PARTS LIST
REF. NO. S/M-976
NOV. 2006
MODULE NO.
QW-2983
BGT-2601JBGT-2600J
R
(WITHOUT PRICE)
CONTENTS
Page
1. SPECIFICATIONS: MODULE QW-2983 .................................................... 1
2. DRAWINGS: MODULE QW-2983
2-1. LCD DIAGRAM ............................................................................................. 2
2-2. CHECKING TERMINALS AND COMPONENTS ..........................................3
3. EXPLODED VIEW: MODULE QW-2983 .................................................... 4
4. PARTS LIST: MODULE QW-2983 ............................................................. 5
5. PRECAUTIONS FOR REPAIR: MODULE QW-2983
5-1. AC (ALL CLEAR) AND REMOVING OF MODULE ...................................... 6
5-2. ACCURACY CHECKING ..............................................................................6
5-3. SOLAR CELL-PCB ASS'Y CONTACT CHECKING.....................................7
5-4. TIME CALIBRATION SIGNAL TEST MODE ................................................7
6. TROUBLESHOOTING FOR TIME RECEPTION:
MODULE QW-2983 .................................................................................... 8
1. SPECIFICATIONS: MODULE QW-2983
Item Detail
Battery CTL1616 (Storage battery)
Note: Use CTL1616 only. Other storage battery or CR1616 can cause
damage to the watch.
Battery life Approx. 11 months
Current consumption 1.01 µA maximum
Alarm system Piezo plate on Cover/Back
Accuracy ±15 sec./month
Accuracy setting system Trimmer capacitor
Accuracy checking See page 6
Functions • Electro-luminescent backlight
Aferglow
• Solar powered
• Battery power indicator
• Power Saving (Turns off the display when the watch is left in the dark)
• Time calibration signal reception
Auto receive
Manual receive
Last date/time received display
• ReceivableTime Calibration Signals
Fort Collins, Colorado (Call Sign: WWVB, Frequency: 60kHz)
Fukushima, Japan (Call Sign: JJY, Frequency: 40kHz)
Fukuoka/Saga, Japan (Call Sign: JJY, Frequency: 60kHz)
• World Time
29 time zones (48 cities), daylight saving time on/off
• 1/100-sec.stopwatch
Measuring capacity: 59'59.99"
Measuring modes: Elapsed time, split time, 1st-2nd place times
• Daily alarms
5 independent daily alarms(4 one-time alarms and 1 snooze alarm)
• Hourly alarms
• Auto-calendar (to year 2039)
• 12/24-hr format
• Regular timekeeping:
hr, min, sec, pm, month, date, day
• Countdown timer
Measuring unit: 1/10 second
Countdown range: 60 minutes
Countdown start time setting range: 1 to 60 minutes (1-minutes increments)
— 1 —
2. DRAWINGS: MODULE QW-2983
2-1. LCD DIAGRAM
LC1
LC4
LC5
L32
L31
LC3
LC2
PM
ALM
SNZ
anta0
f5
e5
d5
a5
g5
c5
PSAVE
anta1
anta2
a4
b5
f4
b4
g4
e4 e3
c4
d4
SIG
y4
y0
x0
min
hyp
col
RECOVER
a3
f3
g3
d3
x16
MID
b3
c3
a1
f1 b1
g1
e1
d1
CHARGE
a2
f2
g2
e2
d2
e0 c0
c1
HIGHLOW
sec
b2
MUTE
c2
DST
a0
b0f0
g0
d0
SEG
L 1
L 2
L 3
L 4
L 5
L 6
L 7
L 8
L 9
L10
L11
L12
L13
L14
L15
L16
L17
L18
L16
L17
L18
L19
L20
L21
L22
L23
L24
L25
L26
L27
L28
L29
L30
COM
LC1 LC2 LC3 LC4 LC5 LC2 LC3 LC4 LC5LC1
c1
g1
g2
e2
c3
g3
g4
e4
c5
g5
x16y2
x15y2
x14y2
x13y2
x12y2
x11y2
x10y2
x9y2 x9y1 x9y0 x9y4 x9y3
b1
f1
b2
f2
b3
f3
b4
f4
b5
f5
x16y1
x15y1
x14y1
x13y1
x12y1
x11y1
x10y1
MUTE
a1
sec
a2
a3
col hyp
min
a4
a5
PM
x16y0
x15y0
x14y0
x13y0
x12y0
x11y0
x10y0
LOW
RECOVER
anta0
anta1
anta2
SNZ
ALM
SIG
x16y4
x15y4
x14y4
x13y4
x12y4
x11y4
x10y4
d1
e1
c2
d2
d3
e3
c4
d4
d5
e5
x16y3
x15y3
x14y3
x13y3
x12y3
x11y3
x10y3
L13
L14
L15
COM
SEG
L19 x8y2
L20 x7y2
L21
L22
L23
L24
L25
L26
L27
L31
L32
L33
L34
COM
SEG
L28
L29
L12
L10
L11
x6y2
x5y2
x4y2
x3y2
x2y2
x1y2
x0y2
e0
g0
L30
CHARGE
PSAVE
L 1
L 2
L 3
L 4
L 5
L 6
L 7
L 8
L 9
x8y1
x7y1
x6y1
x5y1
x4y1
x3y1
x2y1
x1y1
x0y1
f0
b0
x8y0
x7y0
x6y0
x5y0
x4y0
x3y0
x2y0
x1y0
x0y0
DST
a0
x8y4
x7y4
x6y4
x5y4
x4y4
x3y4
x2y4
x1y4
x0y4
MID
HIGH
x8y3
x7y3
x6y3
x5y3
x4y3
x3y3
x2y3
x1y3
x0y3
d0
c0
— 2 —
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