Casio QW-2516 Service Manual Download Page 6

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3-2. CHECKING TERMINALS AND COMPONENTS : QW-2516

Top view of P.C.B. ass'y

Bottom view of P.C.B. ass'y

KI8

KI1

KI3

KI4

VDD

VSS2

BD1

VDD

VCC

VDD

VCH

VDD

VSS2

VSS1

VSS3

VDD

XTB

KI2

KI7

KC3

KC2

VDD

KI5

SF(TB)

PF(VDD)

3 .PCB ass'y
(7640 5308)

Resistor / Chip

Transistor

Tr2

Transistor

Tr3

Transfurmer

Tns1

Capacitor / Tantalum

Capacitor / Chip

4 .Capacitor / Trimmer

(1001 0950)

7 .Cushion 506

(7211 9631)

8 .Cushion 6

(7211 0064)

Xtal

5 .Oscillator / Crystal

(7110 6316)

Capacitor / Chip

LL1

Coil

Summary of Contents for QW-2516

Page 1: ... WITHOUT PRICE SERVICE MANUAL PARTS LIST REF NO S M 769 APRIL 2002 QW 2516 MODULE NO R BGR 250V ...

Page 2: ...0 25 0 35sec day Function Shock resistant Electro luminescent backlight Afterglow Memory Memory capacity Up to 20 sets of data each set including Name 8 characters and telephone number 12 digits World time 27 time zones 40 cities city code display daylight saving on off Day Counter Automatically counts down the days from the current date to a target date Memory capacity 5 records 8 characters each...

Page 3: ...display is illuminated This is due to vibration of the EL panel used for illumination and does not indicate malfunction The backlight automatically turns off whenever an alarm sounds Frequent use of the backlight shortens the battery life World Time Mode Hour Minutes Seconds Day Day of week Mode indicator City code Month Month day display DST on indicator The World Time Mode shows the current time...

Page 4: ...me split times and two finishes The display range of the stopwatch is 23 hours 59 minutes 59 99 seconds The stopwatch continues to run restarting from zero after it reaches its limit until you stop it The stopwatch measurement operation continues even if you exit the Stopwatch Mode Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns to elapsed t...

Page 5: ... X16Y2 X1Y5 X2Y5 X3Y5 X0Y5 X4Y5 X5Y5 X6Y5 X7Y5 X8Y5 X10Y5 X11Y5 X12Y5 X9Y5 X13Y5 X14Y5 X15Y5 X16Y5 c4 X1Y4 X2Y4 X3Y4 X0Y4 X4Y4 X5Y4 X6Y4 X7Y4 X8Y4 X10Y4 X11Y4 X12Y4 X9Y4 X13Y4 X14Y4 X15Y4 X16Y4 b4 g4 PM X4Y6 d4 X5Y6 X6Y6 X7Y6 X8Y6 X10Y6 X11Y6 X12Y6 X9Y6 ALM c4 f4 SIG f5 K0 e5 DAYS b5 DST b1 g1 d1 b2 f1 c5 c6 K2 b6 d5 a5 X12Y0 X11Y0 X11Y2 X10Y0 X9Y0 X8Y0 X8Y2 X7Y0 X6Y0 g5 e6 K1 b7 c7 d7 g7 a7 a9 d6...

Page 6: ...S1 VSS3 AC VDD VDD XT XT XTB KI2 KI2 KI7 KI7 KC3 KC2 N3 N2 N1 N4 VDD VDD VDD VDD VDD SE KI5 KI5 SF TB PF VDD 3 PCB ass y 7640 5308 Resistor Chip R Transistor Tr Transistor Tr2 Transistor Tr3 Transfurmer Tns1 Capacitor Tantalum C5 Capacitor Tantalum C7 Capacitor Chip C4 4 Capacitor Trimmer 1001 0950 CT 7 Cushion 506 7211 9631 8 Cushion 6 7211 0064 Xtal 5 Oscillator Crystal 7110 6316 C1 Capacitor Ch...

Page 7: ...0 5308 PCB ass y 2a 7020 6090 2b 1001 3459 2c 7020 6092 2d 7020 6144 2e 1002 4508 2f 1002 4507 12 7230 0378 Battery Lithium CR1616 1 1007 6114 11a 1007 6113 11b 1007 6115 11c 1007 6116 11d 1007 6117 4 EXPLODED VIEW QW 2516 6 1002 7903 10 7424 3212 ...

Page 8: ... Common 1 A 2a 7020 6090 EL YEL 1951 A 03 QW 2516AT 01TK 1 A 2b 1001 3459 EL YEL 1951 A 01 QW 2516AT 02TK 1 A 2c 7020 6092 EL YEL 1951 A 63 QW 2516AT 03TK 07TK 1 A 2d 7020 6144 EL YEL 1951 A 53 QW 2516AT 04TK 1 A 2e 1002 4508 EL YEL 1951 A 33 QW 2516AT 05TK 08TK 1 A 2f 1002 4507 EL YEL 1951 A 13 QW 2516AT 06TK 1 A 3 7640 5308 PCB ASS Y Q255515 1TK QW 2516AT Common 1 A 4 1001 0950 CAPACITOR TRIMMER...

Page 9: ...pointed by arrows 6 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 C button press the A and B buttons at the normal time keepingmode Then all the segments are displayed and the LCD drive signals are changed to the static drive sign...

Page 10: ...Nishi Shinjuku Kimuraya Bldg 1F 5 25 Nishi Shinjuku 7 Chome Shinjuku ku Tokyo 160 0023 Japan Printed in Japan Overseas Service Division CASIO TECHNO CO LTD EI0400621A ...

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Summary of Contents for QW-2516

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Casio QW-2516, Service Manual, Page: 6 / 10

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