Casio QW-2983 Manuale utente

SERVICE MANUAL

& PARTS LIST

(WITHOUT PRICE)

QW-2983

MODULE NO.

REF. NO. S/M-976

NOV. 2006

BGT-2601JBGT-2600J

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 —

1. SPECIFICATIONS: MODULE QW-2983

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)

Item Detail

—2 —

L28

L 3

L 4

L 5

L 6

L 7

L 8

L 2

L 1 g1

CHARGE

L29 PSAVE

COM

SEG COM

SEG

L 9 c5

L10 g5

L11 x16y2

L12 x15y2

L13 x14y2

L14 x13y2

L15 x12y2

L16 x11y2

L17 x10y2

SEG COM L30

c1 f1

x16y1

x15y1

x14y1

x13y1

x12y1

x11y1

x10y1

b1 a1

sec

min

col hyp

x16y0

x15y0

x14y0

x13y0

x12y0

x11y0

x10y0

MUTE RECOVER

anta0

anta2

SNZ

anta1

ALM

SIG

x16y4

x15y4

x14y4

x13y4

x12y4

x11y4

x10y4

LOW e1

x16y3

x15y3

x14y3

x13y3

x12y3

x11y3

x10y3

LC1 LC2 LC3 LC4 LC5 LC2 LC3 LC4 LC5LC1

L19 x8y2

L20 x7y2 x8y1

x7y1 x8y0

x7y0 x8y4

x7y4 x8y3

x7y3

L23

L24

L25

L26

L27

L22

L21

L31

L32

L33

L34

x6y2

x4y2

x3y2

x5y2

x2y2

x0y2

x1y2

x6y1

x4y1

x3y1

x5y1

x2y1

x0y1

x1y1

x6y0

x4y0

x3y0

x5y0

x2y0

x0y0

DST

x1y0

x6y4

x4y4

x3y4

x5y4

x2y4

x0y4

MID

x1y4

HIGH

x6y3

x4y3

x3y3

x5y3

x2y3

x0y3

x1y3

L18 x9y2 x9y1 x9y0 x9y4 x9y3

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

L19

L20

L21

L22

L23

L24

L25

L26

L27

L28

L29

L30

L32

L31

LC3

LC2

LC1

LC4

LC5

x16

HIGHLOW

f1 b1

g5 g4

f4 b4

e4 e3

CHARGE

RECOVER

PSAVE

SIG

hyp

anta1

anta2

anta0

MID

ALM

SNZ

DST

f2 b2

e0 c0

g0 b0f0

sec

col

min

MUTE

2. DRAWINGS: MODULE QW-2983

2-1. LCD DIAGRAM

—3 —

2-2. CHECKING TERMINALS AND COMPONENTS

Short pad for R trimming

Short pad for N trimming

CAPACITOR/TRIMMER

2. PCB ASS'Y

(76409253)

Short pad for switching modules

KI7-GND: Short (Soldering)

KI6-KC3: Open (No Soldering)

KI6-KC1: Open (No Soldering)

TAPE/ADHESIVE 2306

OSCILLATOR/CRYSTAL

CUSHION 466-A

VSC

VDD2

P13 P12

VCC

GND

VDD2

VCH

VCC

VC1

GND

VDD2

P14

KI5 Kl1

Kl4

KI3

VDSP

FET-D P2

VC1VC2

VSC VDD2

LL1

GND

GND Rcp

GND

FET-S P2

VCH

VDSPGND

VDD1

VDD2

GND

Rxt3

Rxt2

GND Rcp

VDD2

Rxt3

VDD3

GND

VDD2

XTB

LL1

SCIN

GND R2

GND R1

CLF2

GND

VC4

VC3

KI9

KI6

SCIN

GND

VHF GND

KI7 GND

SCINSCR

GND

VSC

GND

KI6

GND

L-

L+

GNDB

GND

LL1

CLF2

VOUT

L-

CLF1

LD1

VDD2

L+

GND

LL1 GND

KI8 GND

CLF1

VOUT

KI5

KI3KI4

KI1

VSC

GND

KI8GND

Rxt2

GND

KC3

KC1

K18

K12

—4 —

3. EXPLODED VIEW: MODULE QW-2983

1 (10207640)

8 (10209260)

12 (10209257)

7 (72311777)

15 (72019249)

4 (10168959)

2 (76409253)

PCB ass'y

6 (10209258)

14 (72301045)

9 (10209261)

3 (10065657)

Battery storage (CTL1616)

10 (10065664)

13 (72301036)

5 (72311913)

11 (10123230)

4. PARTS LIST: MODULE QW-2983

QW-2983AT-01TK

1 QW-2983AT-01TK

Note: 1. Prices and s

ecifications are sub

ect to chan

e without

rior notice.

2. S

are

arts are classified as follows accordin

to their im

ortance in after-sales service.

A Rank ---------------------------------------- Im

ortant

C Rank ---------------------------------------

Not Im

ortant

3. Batteries in Bulk

ack on the tra

will be su

lied from our Overseas S

are Parts Section under char

e ba

Batteries in Blister

ack will be su

lied from our Sales De

artment.

4. As for order/su

of s

are

arts, refer to the se

arate

ublication "GUIDE BOOK for s

are

arts su

Attention to order

1The most of normal repair or initial repair within 1year since released month can be done by main parts.

2Minor parts should be ordered carefully in consideration of the actual usage of your repair and your technical skills.

3Main parts should be ordered and stocked appropriately in consideration of your parts usage anre repair usage for

similar models.

MAIN PARTS

Item Code No. Parts Name S

ecification Q'TY R

76409223 MODULE/WITHOUT MOVEMENT QW-2983AT-01TK 1 A

1 10207640 LCD K2983-01THP 1A

2 76409253 PCB A ’Y RJQ527615*001V01TK 1 A

MINOR PARTS

Item Code No. Parts Name S

ecification Q'TY R

3 10065657 BATTERY/ TORAGE CTL1616 1 C

4 10168959 CONTACT/BATTERY 2730 Q255819-2V05 1 C

5 72311913 CONTACT/BATTERY(-) 1828 Q359948B-2 1 C

6 10209258 EL YEL-2983-A-60 1 C

7 72311777 HOLDER 1381 Q456843-1 1 C

8 10209260 INTERCONNECTOR 2983-1 RJQ526558-001V01 1 C

9 10209261 INTERCONNECTOR 2983-2 RJQ526559-001V01 1 C

10 10065664 LABEL/ 2368 Q468543A-1 1 C

11 10123230 CREW/FLAT2730 RJQ513792-001V01 1 C

12 10209257 PACER 2983-2 RJQ526556-001V01 1 C

13 72301036 PRING/COIL 1604-2 Q461742A-1 2 C

14 72301045 PRING/COIL 2017-1 Q462959-1 2 C

15 72019249 PRING/COIL 675-3 Q413389A-1 1 C

For the

rices and minimum order/su

uantities of the above

arts, refer to the Parts Price List P.P.L.-636.

Notes: Q - Used quantity

R - Rank

A : Important

C: Not Important — 5 —

—6 —

5. PRECAUTIONS FOR REPAIR: MODULE QW-2983

5-1. 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 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.

5-2. 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 the A button, press Cand Dbuttons at the normal timekeeping 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”

Press any 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.

QW-2983

—7 —

5-3. SOLAR CELL-PCB ASS'Y CONTACT CHECKING

Check a Solar cell and PCB ass'y are contacted correctly by contact spring, when a module is

disassembled.

1. To enter TEST mode.

1) While pressing Abutton, press Band Dbuttons at the normal timekeeping mode.

2. Check a Solar cell and PCB ass'y contact in the following order.

1) Display side up and place the watch on the desk.

2) Check the display indicates as figure 2.

3) Display side down and place the watch on the desk more than 3 seconds.

Or go to a dark room and place the watch more than 3 seconds.

4) Check the display indicates as figure 3.

If“8888”isnot appearedonthe display, disassemble againthemodule and check thecontactspring

between the Solar cell and PCB.

Figure 3

Figure 1 Figure 2

Press A, Band Dbuttons

Place the watch in a dark

room more than 3 seconds.

3. To exit from TEST mode

Press any button.

5-4. TIME CALIBRATION SIGNAL TEST MODE

1) Press B, Cand Dbutton at the same time to enter the test mode.

2) Press Dbutton to switch from one signal source to another.

U60: Fort Collins, Colorado (Call Sign: WWVB, Frequency: 60kHz)

J40: Fukushima, Japan (Call Sign: JJY, Frequency: 40kHz)

J60: Fukuoka/Saga, Japan (Call Sign: JJY, Frequency: 60kHz)

3) Press Bbutton to start signal reception.

Appear “8888”on display.

—8 —

6.TROUBLESHOOTING FOR TIME RECEPTION: MODULE QW-2983

Yes

START

Check whether the Home City

code is selected correctly.

Perform MANUAL time

calibration signal reception

There is a possibility of the bad location for reception.

Perform AUTO time

calibration signal reception

Replace the PCB ass'y

Signal

reception OK?

Signal

reception OK?

Signal

reception OK?

Replace the Case center

ass'y with antenna

Signal

reception OK?

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