Countdown timer will not beep at end of countdown

There is single manual for all adidas watches. You can find procedure for your watch.

ADIDAS-ORIGINALS-TIMEPIECES_CARE-MANUALS_EN.pdf (adidaswatches.com)

The crown has 3 positions.

Normal screwed down.
First pull out position.
Second pull out position.

Setting the Time:
Pull out the crown to position 3.
Rotate the crown to set the exact time.
Ensure that you are in the daytime12 hour segment by allowing the hands to pass 12 o'clock and notice if the date moved on or not.
If the date changed, then you will need to advance at least 2 hours before moving on to set the date.
If you do not need to change the date, return the crown to position 1.


Setting the Date:
DO NOT DO THIS IF THE WATCH IS BETWEEN 8pm & 2am
Pull crown to position 2.
Rotate the crown clockwise to set to the correct date.
Return the crown to position 1.


Setting the Alarm [12 hour]
Pull the crown to position 2.
Rotate the crown anti clockwise to move the alarm hand to the desired time.
Return the crown to position 1.
To activate the alarm, press the 8 o'clock button. You will hear 2 beeps.
To deactivate the alarm, press the 8 o'clock button. You will hear 1 beep.
NB If the alarm is not cancelled while it sounds the first time, it will repeat again in 2 minutes time. The alarm sound last for 15 seconds. If the alarm time coincides with 1 beep of the countdown, the alarm function will be cancelled.


Battery EOL [End Of Life]
The Swiss ISA 8270 movement uses a 395 cell and will signify a low power state by advancing the small seconds hand 4 steps every 4 seconds.


Setting the Countdown
You can specify a countdown of between 1 and 10 minutes.
Press the 4 o'clock button to enter setting mode. You will hear 1 beep.
Press the 4 o'clock button to move the central timing hand successively to the desired countdown time.
Wait 3 seconds for the watch to automatically exit the setting mode.
You can change the duration of the countdown [except in the last minute] at any time.
e.g. If the countdown is set to 10minutes, and you now want to change the countdown to 9 minutes, press the 4 o'clock button. The hours/seconds counter sub-dial will perform one complete turn and then stop at 60, before continuing.


Activating the Countdown:
Press the 2 o'clock button to start the countdown. You will hear 2 beeps.
The hours/seconds counter sub-dial will perform one complete turn and then stop at 60, before continuing.
When the countdown begins, the hour/seconds counter sub-dial indicates the seconds with 1 step every 2 seconds, and the central timing hand indicates the minutes with 1 step being 2.4 seconds.


Countdown tone:
There are 2 beeps every minute.
in the last minute:
50 seconds=1 beep.
40 seconds=1 beep.
30 seconds=2 beeps.
20 seconds=2 beeps.
10 seconds and less=1 beep every second with zero being 1 second long beep. Timer function automatically starts.


Timer:
After countdown has finished the timer starts automatically.
The central timing hand indicates the minutes with 1 step every 12 seconds. The hour/minutes counter sub-dial indicates the hours up to a maximum of 96.
Press the 4 o'clock button to see the timer seconds [display lasts up to a minute].
Press the 4 o'clock button to see the timer hours.
The timer has a maximum time of 96 hours [4 days] after which the hour/seconds sub-dial counter will stay at 0 and the central timing hand will stay at 12.


Start/Stop Timer:
Press the 2 o'clock button to stop the timer. You will hear 1 beep.
Press the 2 o'clock button to resume the timer. You will hear 2 beeps.


Setting the Countdown & Timer:
Countdown reset:
Press the 2 o'clock button to stop the countdown. You will hear 1 beep.
Press the 4 o'clock button to reset.


Setting the Timer:
Press the 2 o'clock button to stop the timer. The hour/seconds counter sub-dial will show the elapsed hours and the central timing hand the elapsed minutes.
Press the 4 o'clock button to view the seconds elapsed on the hour/seconds counter sub-dial.
Press the 4 o'clock button to reset.


Resetting the Hands:
If the hands do not zero correctly, which might occur after a battery change or a violent shock, you can make adjustments by doing the following settings as long as the countdown is not in operation.
To correct the hour/seconds counter sub-dial, pull the crown out to position 2 and wait 1 second.
Press either the 2 or 4 o'clock button; the central timing hand will turn and stop [not necessarily at 12].
Press the 2 o'clock button to increment the hours/seconds counter sub-dial hand to position it at 60.
To correct the central timing hand, press the 4 o'clock button to increment the hand to the 12 position.
Return the crown to position 1.



If the battery had been replaced, the central timing hand defaults to the 10 minute position. If the battery had not been replaced, the central timing hand will return to the previously set position.

Thank you for contacting FixYa.

Setting the Time and Date
1. To set the time and date on your Armitron digital watch, begin by pressing the "A" button while in time-telling mode. The seconds place will begin to flash; press the "C" button to reset the seconds to "00". Press "B" to set the hour, and press the "C" button repeatedly until the desired hour is reached. Press "B" to set the minutes, pressing the "C" button until the desired minute is reached. Press the "B" button, followed by "C" to set the month, date and day of the week. When you are finished programming the time and date, press "A" to save and return to time-telling mode.
Using the Chronograph
2. To use the chronograph feature on your digital Armitron watch, press "B" while in time-telling mode to access chronograph mode. Press the "C" button to start the timing; press "C" a second time to stop the timing. To reset the chronograph, press the "A" button. Press the "B" button at any time to return to time-telling mode.
Using the Split Lap Chronograph Feature
3. To use the split lap feature on an Armitron digital watch, press the "C" button while in chronograph mode. Press the "A" button to measure splits or laps; at the end of the event, press the "C" button to stop the timing. Press "A" once to see the final split or lap time, press "A" twice to reset the chronograph to "0". Return to time-telling mode by pressing the "B" button.
Setting an Alarm
4. To set an alarm on your Armitron digital watch, press the "B" button twice to access the alarm mode. Press the "A" button and wait for the hours place to begin flashing, then press the "B" button twice. Press the "B" button, followed by the "C" button to set the hour and minute of your alarm. When you're finished, press the "A" button to save the alarm. Press the "B" button to return to time-telling mode.
Using the Countdown Timer
5. To use your Armitron digital watch as a stopwatch, begin by pressing the "B" button three times while in time-telling mode to access the countdown timer mode. Press the "A" button, followed by the "C" button to set the hour. Press the "B" button, followed by the "C" button to set the minutes and seconds. Once you've set your timer, press "A" to return to countdown timer mode. To stop the countdown timer, press the "C" button. When you are ready to reset the countdown timer, press the "A" button. To return to time-telling mode, press the "B" button.

Best regards. Jewel

Try getting instructions from Casio.
Go to the casio web site "casio.com".

Select "support" and the "manuals", watches;

Accept terms

Select "watch manual archive"

Read the number of the back of your watch and enter it into the search box

Click on "search" and the download your instructions.

If you can't find anything useful, try their technical support.

Get into programming then enter # 197. If you get a zero and a beep, enter *1971 then get out of programming. This will work on vista-15p, vista-15psia, vista-20p, and vista-20psia panels

All Casio manuals are available for download at Casio.com under the support tab.

Thanks!

ANALOG TIME
Pull CROWN and turn to set HOUR and MINUTE hands. TIME AND DATE A. Press and hold SET. SECONDS digits will flash. B. Press SPLIT/RESET to set SECONDS to zero. C. Press MODE to select HOURS. D. Press SPLIT/RESET to advance hours digits. Go through 12 hours for AM or PM. E. Press MODE to select MINUTES, press SPLIT/RESET to advance. F. Repeat to set MONTH, DATE, DAY, 12- or 24-hour time display. G. Press SET when done. BASIC OPERATIONS Press MODE to cycle through CHRONO, TIMER, and ALARM modes. Press INDIGLO to illuminate watch face. In any mode, press MODE to view time display. Press any button to stop alarm or timer beeps. INDIGLO INDIGLO CHRONOGRAPH A. Press MODE until CHRONO appears. B. Press START/STOP to start. C. Press SPLIT/RESET to record lap time. Display pauses. D. Press MODE to resume display of lap and split time (automatic after 10 seconds). E. Press START/STOP to pause chrono. F. Press START/STOP to resume. G. Press START/STOP to stop. H. When timing is stopped, press SPLIT/RESET repeatedly to recall last eight lap and split times. I. Press and hold SPLIT/RESET to reset chrono. MODE MODE START/ STOP START/ STOP SPLIT/ RESET SPLIT/ RESET SET SET CROWN COUNTDOWN TIMER A. Press MODE until TIMER appears. B. Press SPLIT/RESET to select timer operation (Countdown and Stop; Countdown and Repeat; Countdown and Start chrono). C. Press SET. HOURS digits will flash. Press SPLIT/RESET to advance digits. D. Press MODE to select TENS of MINUTES. Press SPLIT/RESET to advance. E. Repeat to set MINUTES, TENS of SECONDS, and SECONDS. F. Press SET when done. G. Press START/STOP to start timer. H. Press START/STOP to pause, press again to resume. I. When timer is stopped, press SPLIT/RESET to reset timer. Watch will beep when countdown reaches zero. ALARM AND CHIME A. Press MODE until ALARM appears. B. Press SET to select HOURS. Digits will flash. C. Press SPLIT/RESET to advance digits. Go through 12 hours for AM or PM. D. Press MODE to select TENS of MINUTES. E. Press SPLIT/RESET to advance. Repeat for MINUTES. F. Press SET when done. G. Press START/STOP to turn alarm on or off. H. Press SPLIT/RESET to turn chime on or off. When alarm time is reached, watch will beep for 20 seconds, or until any button is pushed. Alarm will repeat every 24 hours until deactivated. INDIGLO® NIGHT-LIGHT WITH NIGHT-MODE® FEATURE A. Press INDIGLO to activate light. Patented (U.S. Patent Numbers 4,527,096 and 4,775,964) electroluminescent technology used in the INDIGLO® night-light illuminates watch face at night and in low light conditions. B. Press and hold INDIGLO for three seconds (beep will sound) to activate or de-activate NIGHT-MODE® feature. C. While in NIGHT-MODE® feature, press any button to illuminate watch face for 3 seconds. Chime on Alarm on If your watch is water-resistant, meter marking or ( ) is indicated. Water-Resistance Depth p.s.i.a.* Water Pressure Below Surface 30m/98ft 60 50m/164ft 86 100m/328ft 160 *pounds per square inch absolute WATER AND SHOCK RESISTANCE WARNING: TO MAINTAIN WATER-RESISTANCE, DO NOT PRESS ANY BUTTONS UNDER WATER. 1. Watch is water-resistant only as long as lens, push buttons and case remain intact. 2. Watch is not a diver watch and should not be used for diving. 3. Rinse watch with fresh water after exposure to salt water. 4. Shock resistance will be indicated on the watch face or caseback. Watches are designed to pass ISO test for shock resistance. However, care whould be taken to avoid damaging crystal.

There is this little spring which fits in one of the small holes in the watch. When I tested my watch without the spring, there was no beep. With the spring in place the sound worked nice again. So (IMO) apparently the little spring is used as contact between the watch en the "speaker" placed at the back of the watch.

regards,
Pieter

Hi Johny

You can get the instruction manual for your watch from here

regards
robotek