Casio GW-300J Service Manual & Parts List Download Page 28

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CHARGE

P

DST

E

6-3. 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 

D

 button, press 

A

 and 

B

 buttons 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 two seconds.

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

4) Check the display indicates as figure 3.

If "8888" is not appeared on the display, disassemble again the module and check the contact
spring between the Solar cell and PCB.

3.

To exit from TEST mode

Press any button.

6-4. HOW TO CHECK TILT SENSOR

1) Press 

A

B

 and 

C

 buttons at the normal timekeeping mode.

2) Check the display indicates as figure 4.

3) Tilt the watch towards you more than 40 degrees.
4) Check the display indicates as figure 5.

 Figure 4

 Figure 5

 Figure 3

 Figure 1

 Figure 2

Press 

D

A

 and 

B

 buttons

Tilt the watch towards you
more than 40

°

More than 40

°

D

B

C

A

Place the watch in a dark
room more than two seconds.

Appear "8888" on display.

Appear "TLT" on display.

Appear "8888" on display.

Summary of Contents for GW-300J

Page 1: ...SERVICE MANUAL PARTS LIST WITHOUT PRICE QW 2609 2637 2638 2639 MODULE NO R REF NO S M 803 MAR 2003 GW 300J MTG 900D MTG 900DA MTG 900DJ Ver 2 Nov 2003 Ver 1 Jun 2003...

Page 2: ...2 CIRCUIT DIAGRAM 16 3 3 CHECKING TERMINALS AND COMPONENTS 19 4 EXPLODED VIEW MODULE QW 2609 2637 2638 2639 20 5 PARTS LIST MODULE QW 2609 2637 2638 2639 21 6 PRECAUTIONS FOR REPAIR MODULE QW 2609 263...

Page 3: ...l Sign JJY Frequency 60kHz QW 2637 Receivable Time Calibration Signals Mainflingen Germany Call Sign DCF77 Frequency 77 5kHz QW 2638 Receivable Time Calibration Signals Fort Collins Colorado Call Sign...

Page 4: ...ion starts Ongoing reception is indicated by the icon and the receive indicator See Receive Icon and Indicator for more information To interrupt reception Press the D button All other buttons besides...

Page 5: ...er Home City Summer Time On Auto Japan transmitter select 40kHz 60kHz Tokyo Auto switching in accordance with signal data Troubleshooting Cannot perform manual reception Possible Cause The watch is no...

Page 6: ...watch s time calibration signal receiver if you want to enable auto time calibration See About Auto Receive for more information See Setting the Time and Date Manually for information about manual set...

Page 7: ...te as kept in the Timekeeping Mode at the time of signal reception When auto receive is turned on the watch receives the calibration signal for two to six minutes each day when the Timekeeping Mode ti...

Page 8: ...o cycle through the available settings in the sequence shown below Alarm Snooze on Alarm Snooze off The alarm on indicator or snooze on indicator SNZ is displayed for each alarm 1 through 4 snooze for...

Page 9: ...Time Outdoor Sunlight 50 000 lux 5 minutes Sunlight Through a Window 10 000 lux 24 minutes Daylight Through a Window on a Cloudy Day 5 000 lux 48 minutes Indoor Fluorescent Lighting 500 lux 8 hours Re...

Page 10: ...e watch into a sleep state whenever it is left in an area where it is dark for a certain period The table below shows how watch functions are affected by the Power Saving function Wearing watch inside...

Page 11: ...and Time Calibration Signal Reception Specify the city code for your Home City Select the auto summer time DST setting Perform the manual time calibration signal receive operation to set the current...

Page 12: ...y of the watch s buttons within six minutes prior to or following the calibration times Doing so can interfere with correct calibration Remember that reception of the calibration signal depends on the...

Page 13: ...o cycle through the available settings in the sequence shown below Alarm Snooze on Alarm Snooze off The alarm on indicator or snooze on indicator SNZ is displayed for each alarm 1 through 4 snooze for...

Page 14: ...me Outdoor Sunlight 50 000 lux 5 minutes Sunlight Through a Window 10 000 lux 24 minutes Daylight Through a Window on a Cloudy Day 5 000 lux 48 minutes Indoor Fluorescent Lighting 500 lux 8 hours Reco...

Page 15: ...reference point for UTC is Greenwich England 12 hour 24 hour Timekeeping Formats The 12 hour 24 hour timekeeping format you select in the Timekeeping Mode is also applied in all other modes With the 1...

Page 16: ...7 L31 L32 L33 L34 L35 L36 L37 L38 L39 L40 L41 L42 L43 L44 L45 L46 L47 L48 L49 L50 L51 L52 L53 L54 L55 L28 L29 LC1 LC2 LC3 LC4 LC5 L30 LC1 LC2 LC3 LC4 LC5 LCHARGE SLEEP b6 DST0 SPL SIG ALM SNZ AUTO EL...

Page 17: ...1 x5y1 x6y1 x7y1 x8y1 x9y1 x10y1 x11y1 x12y1 x13y1 x14y1 x15y1 x16y1 LC3 x0y0 x1y0 x2y0 x3y0 x4y0 x5y0 x6y0 x7y0 x8y0 x9y0 x10y0 x11y0 x12y0 x13y0 x14y0 x15y0 x16y0 LC4 x0y4 x1y4 x2y4 x3y4 x4y4 x5y4 x...

Page 18: ...C 1 2 3 16 15 14 4 5 6 7 8 13 12 11 10 9 Cxt Crl1 Rxt2 Ccp9 Cf12 Cagc Cbat Rbat Xtal2 IC ANT Rant2 Cf13 Rcp Rxt3 Xtal3 Crl2 Crl3 Crh3 Crh2 Crh1 Rant1 Rs Rd Cc FET Rpd Rant3 12 DEC2 SK KS 2 2 6 6 4 4 4...

Page 19: ...al2 IC ANT Rant2 Cf13 Rcp Rxt3 Xtal3 Crl2 Crl3 Crh3 Crh2 Crh1 Rant1 Rs Rd Cc FET Rpd Rant3 12 DEC2 SK KS 2 2 6 6 4 4 4 3 3 3 3 3 5 3 9 10 11 3 2 12 12 12 12 12 12 12 INV LL2 VCC Rel ENB GND RT1 RT2 NC...

Page 20: ...al2 IC ANT Rant2 Cf13 Rcp Rxt3 Xtal3 Crl2 Crl3 Crh3 Crh2 Crh1 Rant1 Rs Rd Cc FET Rpd Rant3 12 DEC2 SK KS 2 2 6 6 4 4 4 3 3 3 3 3 5 3 9 10 11 3 2 12 12 12 12 12 12 12 INV LL2 VCC Rel ENB GND RT1 RT2 NC...

Page 21: ...2 KC2 KI6 KC1 GND KI4 KI1 KI5 Xtal2 4 Xtal3 4 GND Inverter INV 5 Oscillator Crystal 7110 6323 Xtal2 Resistor Chip Rxt2 Capacitor Chip Creg Capacitor Chip Cbat Resistor Chip Rcp Resistor Chip Rp2 Capa...

Page 22: ...1777 17 7207 8852 16 1006 5664 QW2609 1a 1009 2583 1b 1009 6265 1c 1009 6263 QW2637 2638 1a 1009 8048 1b 1009 8049 QW2639 1 1009 8048 QW2609 2639 3 7640 5852 QW2637 3 7640 5966 QW2638 3 7640 5962 QW2...

Page 23: ...1 B 5 7110 6323 OSCILLATOR CRYSTAL DT 26S11 QW 2609YCSA Common 1 B 6 7105 5275 SENSOR TILT TS 2418 P QW 2609YCSA Common 1 B 7 7640 6009 ANTENNA ASS Y Q372271 1TK QW 2609YCSA Common 1 B 8 1006 5657 BAT...

Page 24: ...mon 1 B 6 7105 5275 SENSOR TILT TS 2418 P QW 2637ATSA Common 1 B 7 7640 6026 ANTENNA ASS Y Q372420 1ATTK QW 2637ATSA Common 1 B 8 1006 5657 BATTERY STORAGE CTL1616 QW 2637ATSA Common 1 B 9 1008 3365 C...

Page 25: ...mmon 1 B 6 7105 5275 SENSOR TILT TS 2418 P QW 2638ATSA Common 1 B 7 7640 6025 ANTENNA ASS Y Q372115 1ATTK QW 2637ATSA Common 1 B 8 1006 5657 BATTERY STORAGE CTL1616 QW 2638ATSA Common 1 B 9 1008 3365...

Page 26: ...75 SENSOR TILT TS 2418 P QW 2639YCSA Common 1 B 7 7640 6009 ANTENNA ASS Y Q372271 1TK QW 2639YCSA Common 1 B 8 1006 5657 BATTERY STORAGE CTL1616 QW 2639YCSA Common 1 B 9 1008 3365 CONTACT BATTERY 1673...

Page 27: ...acy 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 D button press A an...

Page 28: ...place the watch more than two seconds 4 Check the display indicates as figure 3 If 8888 is not appeared on the display disassemble again the module and check the contact spring between the Solar cell...

Page 29: ...code is selected correctly To perform MANUAL time calibration signal reception OK There is a possibility of location bad Check your location refer to the operation manual To perform AUTO time calibrat...

Page 30: ...CASIO TECHNO CO LTD Overseas Service Division 6 2 Hon machi 1 Chome Shibuya ku Tokyo 151 8543 Japan Ver 1 Correction of page 22 Ver 2 Correction of page 20 21 22 23 and 24...

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