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4

TECHNICAL GUIDE

Cal. S140A, S143A

Remarks after installing the battery

After the battery is replaced with a new one, or after
the battery is re-installed following the repairing
procedures, be sure to short-circuit the AC terminal
of the circuit block and the circuit block cover with
conductive tweezers for more than 2 seconds as
illustrated  at right to reset the circuit.

III.

REMARKS ON DISASSEMBLING AND REASSEMBLING

Use the universal movement holder for disassembling and reassembling.

4

Module (Only for Cal. S143A)

How to remove

Unsolder them with a soldering iron, soak up the
melted solder completely with a solder wick or the
like, and then, remove the jack lead terminal.

How to install

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 jack is only available for supply with the nut.

How to install

To reassemble the jack, set the notch of the jack to the groove of the case.

9

Buzzer lead terminal

How to remove

Remove the buzzer lead terminal after detaching the circuit block case from
the circuit block.

How to install

To install the buzzer lead terminal, set the end portion of the buzzer lead
terminal to the groove of the circuit block case, and then, turn the buzzer lead
terminal slightly so that it does not come off.

Содержание S140A

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 10: ......

Страница 11: ......

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

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