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Casio QW-2957, Руководство по обслуживанию и список запасных частей, Страница: 9 / 14

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— 7 —

3-2. CIRCUIT DIAGRAM

LSI

TOTAL 93PINS

BONDING 87PINS

LCD (4.5V 1/3b 1/5d)

✽ 

1. GND-KI6: Short (Soldering)

 

GND-KI7: Short (Soldering)

 

KC2-KI2: Open (No Soldering)

 

KC3-KI2: Open (No Soldering)

 

KC4-KI2: Open (No Soldering)

 

KC2-KI9: Open (No Soldering)

 

KC3-KI9: Open (No Soldering)

 

KC4-KI9: Open (No Soldering)

✽ 

2. Latch Type Key

✽ 

3. Short (Soldering) (N trimming)

✽ 

4. No bonding

✽ 

5. If the circuit is wired as same as the LED drive circuit as shown 

 

in dash line, LD3KC3 (Normal Low) pin is used as the LD pin. 

 

Therefore, LD3KD3 pin is not specified as a soldering pad. 

 

Also, all the parts shown in dash line are not mounted if LED is 

 not 

mounted.

✽ 

6. Normal High

✽ 

7. KC3 is used in this module.

✽ 

8. KC2 is used in this module.

IC

GND VDD2

BAT

VCH

VDD3 VC1 VC2

C3

C2

C4

XTB

Xtal

L3 - - - - - - L52

LC1 - - - LC5

CT

LD1

S1

S2

S3

VDD1

C1

BD

LL1

Tr1

XT

T1

T2

KI1

KI2

KI3

KI4

KI9

KI6

KI7

KI8

KI5

N1

S4

PZ

VOSC

C5

SDO

AC

✽

1

KC4

LD3KC3

LD2KC2

KC1

N2

N3

✽

3

✽

3

✽

2

N4

✽

3

Z

✽

2

✽

2

✽

2

CSB

✽

3

SA

C6

SK

KS

✽

2

SDI

SCK

✽

1

✽

2

L1

L2

CLF1

E'

Cel

EL

LL2

L+

VOUT

L–

GND

CLF2

V+

BACK

FRONT

✽

1

✽

4

✽

4

✽

4

✽

4

✽

1

✽

1

✽

1

✽

1

✽

1

✽

1

Tr2

R1

LED

✽

5

✽

5

✽

4

✽

4

Содержание QW-2957

Страница 1: ...SERVICE MANUAL PARTS LIST WITHOUT PRICE QW 2957 MODULE NO R REF NO S M 906 AUG 2005 G 7600 Ver 1 Sep 2005 ...

Страница 2: ...RAWINGS MODULE QW 2957 3 1 LCD DIAGRAM 6 3 2 CIRCUIT DIAGRAM 7 3 3 CHECKING TERMINALS AND COMPONENT 8 4 EXPLODED VIEW MODULE QW 2957 9 5 PARTS LIST MODULE QW 2957 10 6 PRECAUTIONS FOR REPAIR MODULE QW 2957 6 1 AC ALL CLEAR AND REMOVING OF MODULE 11 6 2 ACCURACY CHECKING 11 ...

Страница 3: ... data when there are 7 characters per record actual number of records depends on the number of characters per record Other Password World time 29 time zones 27 cities city code display daylight saving on off 1 100 sec stopwatch Measuring capacity 23 59 59 99 Measuring modes Elapsed time split time 1st 2nd place times Countdown timer Input range 1 min to 24 hr Unit 1 sec Other Auto repeat Multi ala...

Страница 4: ... the week is automatically displayed in accordance with the date year month and day settings Daylight Saving Time DST Daylight Saving Time summer time advances the time setting by one hour from Standard Time Remember that not all countries or even local areas use Daylight Saving Time To toggle the Timekeeping Mode time between DST and Standard Time 1 In the Timekeeping Mode hold down A until the s...

Страница 5: ...leted the Password Setting screen appears Current time in the zone of the selected city code Timekeeping Mode time City code World Time World Time shows the current time in 27 cities 29 time zones around the world All of the operations in this section are performed in the World Time Mode which you enter by pressing C To view the time in another city code In the World Time Mode press D to scroll th...

Страница 6: ...ime is frozen on the display clears the split time and returns to elapsed time measurement All of the operations in this section are performed in the Stopwatch Mode which you enter by pressing C To measure times with the stopwatch Elapsed Time Start Stop Re start Stop Clear Start Split displayed Split release Stop Clear Start Split Stop Split release Clear Split Time Two Finishes First runner fini...

Страница 7: ...erforming any operation it automatically changes to the Timekeeping Mode If you leave a screen with flashing digits or a cursor on the display for two or three minutes without performing any operation the watch automatically exits the setting screen Except for password input any settings you have made up to that point are saved automatically Scrolling The B and D buttons are used in various modes ...

Страница 8: ...1 U0 A1 P1 A0 REP P0 f9 e9 DST0 f5 e5 a5 g5 d5 a9 g9 d9 b5 c5 DST1 b9 c9 f4 e4 f8 e8 a4 g4 d4 d8 b4 c4 b8 g8 a8 c8 MIN COL0 HYP COL1 f3 e3 f7 e7 a3 g3 d3 g7 d7 b3 c3 b7 c7 f2 e2 a2 g2 d2 SEC b2 c2 PER AUTO f1 e1 a1 g1 d1 ALM0 c1 b1 e0 SIG f0 a0 g0 d0 b0 SNZ1 c0 a7 e6 f6 a6 d6 g6 b6 c6 L40 L39 L34 L35 L36 L37 L41 L42 L43 L44 LC5 LC1 LC2 LC3 LC4 L38 L52 L51 L50 L49 L48 COM SEG X0 L3 L4 L5 L6 L7 L8 L...

Страница 9: ...in dash line LD3KC3 Normal Low pin is used as the LD pin Therefore LD3KD3 pin is not specified as a soldering pad Also all the parts shown in dash line are not mounted if LED is not mounted 6 Normal High 7 KC3 is used in this module 8 KC2 is used in this module IC GND VDD2 BAT VCH VDD3 VC1 VC2 C3 C2 C4 XTB Xtal L3 L52 LC1 LC5 CT LD1 S1 S2 S3 VDD1 C1 BD LL1 Tr1 XT T1 T2 KI1 KI2 KI3 KI4 KI9 KI6 KI7 ...

Страница 10: ...I9 KI9 KC4 KC4 KC4 N4 N4 N3 N3 N2 N2 N1 N1 T2 T1 KI7 KI7 KI6 KI6 XT KI8 KI4 KI5 KI3 KI1 VOUT GND GND GND KI8 BD LD2KC2 LD2KC2 LD2KC2 XTB KI2 VDD1 VOSC VCH L LD1 AC CLF1 CLF2 L VC1 VDD3 VC2 KC1 LED1 R1 VDD2 GND LD3KC3 LL1 KI5 VOSC VCH KI1 KI3 L L KI4 VOUT VC1 VDD2 KI2 XT XTB VC2 VC1 CLF1 CLF2 GND VDD2 GND XT LL1 GND VDD2 LL1 LL1 BD GND VOSC VCH GND LD3KC3 LED1 GND VDD2 R1 LD1 GND AC VDD2 KI8 KC1 KI...

Страница 11: ...LODED VIEW MODULE QW 2957 10a 10193878 10b 10193879 8 10201005 6 10201012 17 10208889 12 76409012 PCB ass y 15 72019599 7 10076070 5 10097687 9 10201006 16 10201009 2 72360283 14 72330952 Battery Lithium CR2016 ...

Страница 12: ...72110064 CUSHION 6 Q4914 1 QW 2957 Common 1 C 4 72119631 CUSHION 506 Q49364 1 QW 506C01 QW 2957 Common 2 C 5 10097687 CUSHION 2549 Q470646 1 QW 2957 Common 1 C 6 10201012 EL YEL 2957 A 01 QW 2957 Common 1 A 7 10076070 HOLDER BATTERY 2709 Q255451 1 QW 2957 Common 1 C 8 10201005 INTERCONNECTOR 2957 1 RJQ525786 001V01 QW 2957 Common 1 C 9 10201006 INTERCONNECTOR 2957 2 RJQ525787 001V01 QW 2957 Common...

Страница 13: ...ck 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 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...

Страница 14: ...Ver 1 Sep 2005 Addition of the operation chart page 2 to 5 Correction of page 11 CASIO COMPUTER CO LTD Overseas Service Division 6 2 Hon machi 1 Chome Shibuya ku Tokyo 151 8543 Japan ...

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