Casio F91W battery change, AC if display not working

Поділитися
Вставка
  • Опубліковано 12 вер 2024
  • The AC procedure may apply to other similar Casio models.

КОМЕНТАРІ • 62

  • @Lancefrei
    @Lancefrei 2 роки тому +6

    Even after you reset and you don’t see any digits, it could be because the contacts on the back of the battery aren’t making a good enough connection. The old battery has probably been in there for several years and those contacts are flattened down. The remedy is to take the battery out and use a tweezer to pry them up just a little bit so they make a better connection. It may take a couple of tries. I also recommend putting a little silicone grease on the rubber gasket to try to maintain the water resistant rating for this watch. It doesn’t guarantee that, but it will help.

    • @gregross2541
      @gregross2541 2 роки тому

      I had the same issue. I bent the contacts like you said and it wasn't quite working still. I applied a lot of random brute finger pressure to various parts of the watch face and then it started working. May have pressed a button or two also.

    • @Merokh
      @Merokh 4 місяці тому

      this did it for me. removing the battery and bending the contacts on the bottom to look further up so they press harder against the new battery. In combination with the short-circuit that can be seen in the video I feel like a hacker now, lel. also It was necessary to bend the contact plates from the 3 buttons on the sides to make the buttons work again. probably because of me fumbling around too much. My display had some minutes tho show numbers but not fully. It came back fully readable after some 1-2 minutes, though.

  • @louvett77
    @louvett77 3 роки тому +8

    Thank u after Taking it to the watch repair shop they told me it was done for after watching the video I change the original battery for the 1st time after 10 years and Wala back to life

    • @Mattablox
      @Mattablox 2 роки тому +3

      Voila not wala :)

    • @Mattablox
      @Mattablox 2 роки тому

      Voila not wala :)

    • @tydshiin5783
      @tydshiin5783 Рік тому

      They want you to buy a new watch lmao

  • @lorenzodelotto9690
    @lorenzodelotto9690 4 роки тому +10

    Dude you saved my watch! Thank You so much!!!!

  • @williambracho5670
    @williambracho5670 Рік тому +4

    For anyone wondering with a Casio W-59 (very similar watch) on how to reset the CMOS (AC), I could only got it to by connecting the AC terminal directly with the + side of the battery

    • @martin.s7
      @martin.s7 Рік тому

      Thank you!! It works. :]

  • @Vivek-vq1um
    @Vivek-vq1um 2 місяці тому +1

    Thanks dude .. saved my 16 years old F91w

  • @Moefulify
    @Moefulify 7 місяців тому +1

    Thanks a lot - used a paper clip to do the 2.22 reset ;) So good to not just get another watch!!!

  • @GaborKoncz-i5s
    @GaborKoncz-i5s 9 місяців тому +1

    If the display shows random things, u have to RESET. Short circuit the AC (All Clear) point. This is a TINY hole, one from the many on the face (Top/North), a very hard to read sign indicates it. Try to move into the light to reflect for easier readability. Than use some metallish, thin tool to short the circuit. I used a clips, folded back to CONNECT THE BATTERY WITH THE AC POINT.

    • @Rek0rdsS
      @Rek0rdsS 5 місяців тому

      Thank you mate, it is working again.

  • @tirmikj5
    @tirmikj5 2 роки тому +3

    i didnt understand. what makes AC ? All clear??

  • @aghasamiei
    @aghasamiei 20 днів тому

    😂 thanks a lot,I wanted to throw the watch in the trash before this video

  • @AmarSingh-co1fq
    @AmarSingh-co1fq 3 роки тому +3

    It is a CR2016 Battery

  • @westerliesharbour7608
    @westerliesharbour7608 2 роки тому +2

    I removed the sticky piece of white paper, does it matters?

  • @teknolojidunyamz7184
    @teknolojidunyamz7184 6 місяців тому

    Did the beep sound go away after battery replacement?

  • @MrTomswanie
    @MrTomswanie 2 роки тому

    Thanks a bunch. Saved mea watch!

  • @childishprofessor4525
    @childishprofessor4525 2 роки тому

    My watch gets blinking the digits I used to watch your video and do like the way you does but it has a difference I just losses ah one screw here ?

  • @xcube132
    @xcube132 4 роки тому

    Buen trabajo,me ha salvado,muchas gracias!

  • @Ccarlos7
    @Ccarlos7 2 роки тому

    Thank you, it works

  • @typobad
    @typobad 4 роки тому +1

    i managed to do the AC thing, and i got results, the watch shows all the right things, but some of the segments just dont show at all. worried that the watch might just be broken, i just got the watch today, and the display was missing segments before i had even opened it. do you have any tips, or is this a lost cause?

    • @johne6081
      @johne6081 4 роки тому +1

      That is precisely my problem, as well. I replaced the battery, and now I can't get all segments to light.

    • @freedom55or95
      @freedom55or95 4 роки тому +2

      @@johne6081 Ensure one tweezer end pokes into the AC (all clear) hole, and other tweezer end should simultaneously touch the silver metal battery clip you just pressed on. That should reset it back to 1200 on Sunday 1. GL!

    • @johne6081
      @johne6081 4 роки тому

      @@freedom55or95 Typo and I have the problem of dark segments, which evidently is related to the conductive rubber strip that connects the LCD display to the circuit board.

  • @giankarlosps
    @giankarlosps Місяць тому

    GRACIAS!

  • @tingchan4770
    @tingchan4770 4 роки тому +3

    Saved my butt, I thought all was lost.

  • @quochuy2529
    @quochuy2529 3 роки тому

    thank you so much!

  • @fredericomontero6123
    @fredericomontero6123 2 роки тому

    Thank you so much

  • @sherajussalehin7881
    @sherajussalehin7881 3 роки тому +1

    What is the size of the screw used in that watch?

    • @raouloctav
      @raouloctav  3 роки тому +2

      It's a really small Philips, but i do not know the size. What i can tell you, it's standardized on lower ends Casio

    • @user-jq3mw4rj1k
      @user-jq3mw4rj1k 4 місяці тому

      It's the same which is normally used in eye glasses. I just got one from my local eye glasses shop and it was the perfect fit. Hope it helps.

  • @readytofish1
    @readytofish1 Рік тому

    Tks

  • @tirmikj5
    @tirmikj5 2 роки тому +1

    the VERY IMPORTANT part is not in video!!!!

  • @kitiorore6705
    @kitiorore6705 8 місяців тому

    2:23 after AC no display,why?

  • @WardyChannel
    @WardyChannel 3 роки тому

    What are the prongs called to reset the AC. I’m trying to find some but not sure what to search.

  • @millenniumedition
    @millenniumedition 2 роки тому +1

    I’m 7 and use this watch dayliy

  • @281
    @281 Рік тому

    I tried this but my LCD still doesnt work

  • @prakshob
    @prakshob 2 роки тому

    What happens if i use a cr2032 battery?

  • @Marian87
    @Marian87 2 роки тому

    My screen flickers after changing the battery, The AC reset doesn't fix it.

    • @raouloctav
      @raouloctav  2 роки тому

      Hy. Check if everything is seated correctly. Replace or reseat the battery

    • @Marian87
      @Marian87 2 роки тому

      @@raouloctav Thank you for the reply. I did that a few times. I fiddled with it for more than an hour with no success. It might just be a problem with the quartz oscillator or a bad solder joint somewhere. It's a used watch I received without the battery so I have no idea if the problem existed before.

  • @avada0
    @avada0 2 роки тому

    My watch remained dead... :(
    The old battery was certainly discharged: 0.3V So I don't know what happened.

    • @avada0
      @avada0 2 роки тому

      Well, after some adjustments it came back to life.

  • @gm2655
    @gm2655 4 роки тому

    Thanks..after i replace battery..alarm sound no longer work

    • @ranjankc121
      @ranjankc121 4 роки тому +3

      Hi ..remove the back cover and arrange it correctly, make sure the alarm pins are aligned with back cover speakers.

    • @raouloctav
      @raouloctav  4 роки тому +1

      @@ranjankc121, you are right, the piezoelectric speaker needs to have contact to work properly, this if it has not gone kaput.

    • @lorenzodelotto9690
      @lorenzodelotto9690 4 роки тому +1

      @@ranjankc121 thank you!!!

    • @ranjankc121
      @ranjankc121 4 роки тому

      @@lorenzodelotto9690 your welcome...

    • @tirmikj5
      @tirmikj5 2 роки тому

      after assmbling back cover (metal) then gonna work. try it before screwing. you ll see. ( i was terrifed same.. then i see)

  • @ady.cartier.1993
    @ady.cartier.1993 4 роки тому

    Sall de unde pot achizitiona palosul lui greuceanu

    • @raouloctav
      @raouloctav  4 роки тому

      :) a fost un proiect din perioada comunista a unui mester, am vazut ceva similar la Gerber , lansat acum in 2020. ceva tip maceta, nu am numele acum dar poti cauta Gerber shotshow 2020

    • @ady.cartier.1993
      @ady.cartier.1993 4 роки тому

      @@raouloctav mulțumesc

  • @yogijangid3262
    @yogijangid3262 3 роки тому

    I replaced battery my Casio watch but my watch was not working 😭😭
    Please do something

    • @trevhib
      @trevhib 9 місяців тому +1

      It's taken years for anyone to reply to you but rest assured, I have now done something.

  • @pramodpatil6041
    @pramodpatil6041 Рік тому

    Use gloves