Seiko S140A Parts Catalogue /Technical Manual Download Page 2

2

PARTS CATALOGUE

Cal. S140A, S143A

Disassembling procedures Figs. :

1

17

Reassembling procedures Figs. :

17

1

Lubricating:

Types of oil

Oil quantity

SEIKO Watch Oil S-6

Normal quantity

Silicone oil 500,000

Please see the remarks on the following pages.
(Lubricating of some parts is shown in “III. REMARKS ON DISASSEMBLING AND REASSEMBLING”)

1

Case back screw

2

Case back

Piezoelectric element

3

Case back
gasket

4

Module

5

7504 620
Jack
(only for Cal. S143A)

Jack nut
(only for Cal. S143A)

Button B

Button C

Button A

Button D

Button spring clip

Button spring

7

0022 922
Circuit block
cover screw

6

Battery
(See the
 front page.)

8

4457 753
(for Cal. S140A)
4457 754
(for Cal. S143A)
Circuit block
cover

9

4246 825
Buzzer lead
terminal

10

0353 503
Spring for
switch
conductivity

11

4410 779
Circuit block
case

12

4450 851
Switch lever

13

4000 875
(for Cal. S140A)
4000 872
(for Cal. S143A)
Circuit block

14

4313 825
Connector

15

Liquid crystal
panel

16

4313 826
Switch connector

17

4512 850
Liquid crystal
panel frame

Summary of Contents for S140A

Page 1: ... lap time measurement Total time measurement lap time measurement in progress Time calendar display Stroke display Only for Cal S140A Additional mechanism Memory function Up to 300 measurements Memory capacity indicator Confirmation sound for watch operation Contrast adjustment function Battery life indicator Printout function Only for Cal S143A Regulation system Nil Measuring gate by quartz teste...

Page 2: ...k gasket 4 Module 5 7504 620 Jack only for Cal S143A Jack nut only for Cal S143A Button B Button C Button A Button D Button spring clip Button spring 7 0022 922 Circuit block cover screw 6 Battery See the front page 8 4457 753 for Cal S140A 4457 754 for Cal S143A Circuit block cover 9 4246 825 Buzzer lead terminal 10 0353 503 Spring for switch conductivity 11 4410 779 Circuit block case 12 4450 85...

Page 3: ...umber and refer to SEIKO Casing Parts Catalogue to choose a corresponding liquid crystal panel Cal S140A Cal S143A C MOS LSI Input terminal Input terminal Crystal unit C MOS LSI Input terminal Input terminal Jack lead terminal Remarks on installing the battery Keep the battery level while installing it lest it should touch the circuit block cover Be careful not to short circuit the battery connect...

Page 4: ...nstall Set the jack lead terminal to the jack pin taking care not to set it upside down Then re solder them with the soldering iron The jack and the jack lead terminal are soldered together Note When using the soldering iron take utmost care not to deform or damage the case and other parts by the heat of the soldering iron Case Liquid crystal panel Jack lead terminal Soldered portion 5 Jack The ja...

Page 5: ...own in the illustration at right Set the stopper of the liquid crystal panel to the groove of the liquid crystal panel frame Set the switch connector with the conductive portion black up IV VALUE CHECKING Current consumption For the whole module Less than 12 µA with voltage of 3 0 V supplied from a battery For the circuit block alone Less than 10 µA with voltage of 3 0 V supplied from a battery Ho...

Page 6: ...lit up it will automatically return to the TIME CALENDAR mode in 1 to 2 minutes To return to the TIME CALENDAR mode manually press button D To measure the time accuracy with the quartz tester light up all the segments of the display Button B Button A Button D Button B Button A Button D Connection with the System Printer SP12 Only for Cal S143A How to connect In inserting the plug of the connecting...

Page 7: ... batteries of the printer have run down replace them with new ones 3 Check if the soldered portion of the jack lead terminal of the stopwatch is damaged to cause short circuit If the printer will not operate properly after correcting the above conditions take both the printer and the stopwatch to a SEIKO SERVICE CENTER for repair Please be informed that the repairs of the System Printer SP12 will ...

Page 8: ...OF MODES Button A START STOP Restart and stop of the stroke measure ment is repeated by pressing the button Button C MEMORY RECALL STROKE mode indicator Memory number Number of stokes per minute Button B LAP SPLIT RESET With each press of the button after the measurement is started split time and lap time are measured By pressing the button to end the measurement the new block number for the next ...

Page 9: ...ONTRAST Activation deactivation of the contrast adjustment function Button B LAP SPLIT RESET With each press of the button after the measurement is started split time and lap time are measured By pressing the button to end the measurement the new block number for the next measurement is displayed Memory capacity indicator Indication of the available memory STOPWATCH mode indicator Split lap number...

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Page 12: ...2000 4 Printed in Japan ...

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