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— 5 —

3. DRAWINGS: QW-2461

3-1. LCD DIAGRAM

PM

AM

f5

a5

b5

g5

c5

e5

d5

d4

e4

g4

f4

a4

b4

c4

COL

e3

g3

f3

a3

b3

c3

d3

a2

b2

c2

g2

d2

e2

f2

e1

d1

c1

g1

b1

a1

f1

f0

a0

b0

g0

e0

d0

c0

DAYS

SIG

DST

ALM

b9

c9

f8

a8

b8

g8

c8

d8

e8

X0

Y0

Y12

d7

e7

f7

g7

a7

b7

c7

e6

d6

c6

g6

f6

a6

b6

K5

K6

K7

K8

K9

K0

K1

K2

K3

K4

L 3
L 4
L 5
L 6
L 7
L 8
L 9
L 1 0
L 1 1
L 1 2
L 1 3
L 1 4
L 1 5
L 1 6
L 1 7
L 1 8
L 1 9
L 2 0
L 2 1
L 2 2
L 2 3
L 2 4
L 2 5
L 2 6

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

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

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

L C 6

b9

f8

a8
b8

X6Y5
X7Y5
X8Y5
X9Y5

X10Y5
X11Y5
X12Y5
X13Y5
X14Y5
X15Y5
X16Y5
X17Y5
X18Y5
X19Y5
X20Y5
X21Y5
X22Y5

L C 7

K0

X0Y6
X1Y6
X2Y6
X3Y6
X4Y6
X5Y6
X6Y6
X7Y6
X8Y6
X9Y6

X10Y6
X11Y6
X12Y6
X13Y6
X14Y6
X15Y6
X16Y6
X17Y6
X18Y6
X19Y6
X20Y6
X21Y6
X22Y6

L C 8

K1

X0Y7
X1Y7
X2Y7
X3Y7
X4Y7
X5Y7
X6Y7
X7Y7
X8Y7
X9Y7

X10Y7
X11Y7
X12Y7
X13Y7
X14Y7
X15Y7
X16Y7
X17Y7
X18Y7
X19Y7
X20Y7
X21Y7
X22Y7

L 2 7
L 2 8
L 2 9
L 3 0
L 3 1
L 3 2
L 3 3
L 3 4
L 3 5
L 3 6
L 3 7
L 3 8
L 3 9
L 4 0
L 4 1
L 4 2
L 4 3
L 4 4
L 4 5
L 4 6
L 4 7
L 4 8
L 4 9
L 5 0

L C 1

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

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

L49

LC8

LC7

LC6

LC5

LC4

LC3

L29

L30

L31

L32

L33

L34

L35

L36

L37

L38

L39

L40

L41

L42

L43

L44

L45

L48

L46

L47

L50

L25

L24

L23

L17

L16

L15

L  3

L  4

L19

L20

L22

L21

L27

L18

LC1

LC2

L26

L28

L  5

L  6

L  7

L  8

L  9

L10

L11

L12

L13

L14

COM.

SEG.

COM.

SEG.

X28

Summary of Contents for QW-2461

Page 1: ...SERVICE MANUAL PARTS LIST WITHOUT PRICE QW 2461 MODULE NO R REF NO S M 757 NOV 2001 BGM 220LV ...

Page 2: ...T QW 2461 2 3 DRAWINGS QW 2461 3 1 LCD DIAGRAM 5 3 2 CIRCUIT DIAGRAM 6 3 3 CHECKING TERMINALS AND COMPONENT 7 4 EXPLODED VIEW QW 2461 8 5 PARTS LIST QW 2461 9 6 PRECAUTIONS FOR REPAIR QW 2461 6 1 AC ALL CLEAR AND REMOVING OF MODULE 10 6 2 ACCURACY CHECKING 10 ...

Page 3: ...r of text A mark appears on the display to let you know when a target date is reached Free memos 5 independent free memos up to 8 characters and 16 numerals Katakana display 1 100 second stopwatch Measuring capacity 23 59 59 99 Measuring modes Elapsed time split time 1st 2nd place times Musical alarms 5 independent daily alarms Melody presettable with a unique 2 part harmony and beep Two special m...

Page 4: ...ight Saving Time While the SOUND button tones setting is selected press D or B to turn the beep and musical tone on and off as shown below Changing the SOUND also changes the Hourly Time Signal tones Beep Musical tone Off Press Press While the VOL setting is selected press D or B to toggle it between loud and soft Loud Soft Press or DST indicator 2 DST indicator 1 With some models changing the vol...

Page 5: ...Alarm indicator 2 Alarm indicator 3 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 ...

Page 6: ...acter 1 Title Character 1 Data Character 16 Mode indicator Memo number Title 4 Use D or B to scroll through characters at the current location of the flashing Holding down either button scrolls at high speed Press Press Space A to Z Punctuation Japanese characters Hyphen Symbols Numbers See the CHARACTER LIST at the back of this manual for details Pressing D and B at the same time while inputting ...

Page 7: ...X16Y6 X17Y6 X18Y6 X19Y6 X20Y6 X21Y6 X22Y6 L C 8 K1 X0Y7 X1Y7 X2Y7 X3Y7 X4Y7 X5Y7 X6Y7 X7Y7 X8Y7 X9Y7 X10Y7 X11Y7 X12Y7 X13Y7 X14Y7 X15Y7 X16Y7 X17Y7 X18Y7 X19Y7 X20Y7 X21Y7 X22Y7 L 2 7 L 2 8 L 2 9 L 3 0 L 3 1 L 3 2 L 3 3 L 3 4 L 3 5 L 3 6 L 3 7 L 3 8 L 3 9 L 4 0 L 4 1 L 4 2 L 4 3 L 4 4 L 4 5 L 4 6 L 4 7 L 4 8 L 4 9 L 5 0 L C 1 e7 g7 c7 e6 g6 c6 X22Y3 X21Y3 X20Y3 X19Y3 X18Y3 X17Y3 X16Y3 X15Y3 X14Y3...

Page 8: ...D1 1 VDD2 GND VCH VDSP VDD1 VC1 VC2 VHF VC3 VC4 VDD3 C7 C8 C4 C3 C2 C6 C5 C1 LL1 C10 EL FRONT BACK BAT CT C9 C11 Xtal BD1 BD2 MIN ENV SDO SCK SCUT VCC Vcc C12 Vss A2 A1 A0 WP WP SCL SCL SDA SDA EEPROM L3 L50 LC1 LC8 KI1 KI2 KI3 KI4 KI5 KI8 KC5 1 S1 S2 S3 S4 F0 KI9 KC4 KC3 KC2 KI7 KI6 KC1 R2 Tr1 E CLF2 CLF1 V GND L VOUT L INV 1 No bonding 3 2 CIRCUIT DIAGRAM ...

Page 9: ...1 GND XT SCK VCH GND VC1 VC2 GND VHF GND VDSP GND KI5 L L VCH KI3 GND VDD2 GND GND SCK SDO WP GND GND GND GND C9 Capacitor Chip C1 Capacitor Chip C7 Capacitor Chip C8 Capacitor Chip 6 Cushion 506 Memory External 7211 9631 Resistor Chip 6 Cushion 506 7211 9631 Capacitor Tantalum Capacitor Tantalum Coil Diode 4 Oscillator Crystal 1004 1131 1001 0950 CT 3 Capacitor Trimmer Xtal Coil LL2 Capacitor Chi...

Page 10: ... 8 4 EXPLODED VIEW QW 2461 Battery Lithium CR1620 11 7233 2629 PCB Unrepairable 9 1002 1815 1 1006 5673 2 1006 5674 10 7229 0790 5 1002 7903 13 7230 0623 8 7231 1885 12 1006 5672 14 7230 0616 ...

Page 11: ...2 1006 5674 EL YEL 1564 A 91 ANG QW 2461YC 01TK 1 A 3 1001 0950 CAPACITOR TRIMMER CTZ2E 30C W2 P QW 2461YC 01TK 1 B 4 1004 1131 OSCILLATOR CRYSTAL DT 26SJ T QW 2461YC 01TK 1 B 5 1002 7903 CONTACT BATTERY Q39603B 1 QW 2461YC 01TK 1 C 6 7211 9631 CUSHION 506 Q49364 1 QW 2461YC 01TK 2 C 7 7211 0064 CUSHION 6 Q4914 1 QW 2461YC 01TK 1 C 8 7231 1885 HOLDER BATTERY Q360562 1 QW 2461YC 01TK 1 C 9 1002 181...

Page 12: ... 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 6 PRECAUTIONS FOR REPAIR QW 2461 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...

Page 13: ...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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