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Grayson Automatic Flip Calendar Clock w/ Faulty Date

  1. Grayson Automatic Flip Calendar Clock w/ Faulty Date, cleaning the contacts: étape 1, image 1 de 3 Grayson Automatic Flip Calendar Clock w/ Faulty Date, cleaning the contacts: étape 1, image 2 de 3 Grayson Automatic Flip Calendar Clock w/ Faulty Date, cleaning the contacts: étape 1, image 3 de 3
    • 1st image just shows the top half of the clock with back removed (after undoing 12 screws). Note the silver motor at middle top.

    • 2nd image shows orange printed circuit board (pcb) for leap year correction. Spray or drip a few drops of contact cleaner on copper tracks of pcb so it dribbles into the gap. Note you can't see the contacts, but the cleaner will run into the gap if you turn the unit upside down. Turn the big cog around a few times to help the cleaning process.

    • 3rd image shows another orange printed circuit board for month adjustment. Again spray or drip a little contact cleaner onto the pcb copper tracks and let it drip into the gap. Again help the cleaning process by rolling through the months immediately after using the cleaning solvent. Dry up any excess cleaning fluid if necessary.

Conclusion

To reassemble, turn the front and back parts of the clock assembly upside down before putting them together, so that the three adjusment switches on the back drop into the right position. Then replace the 12 screws.

With the battery in, you can now test that it works by manually cycling though the days with the black switch at the back to ensure the dates are correct for the shorter months (Feb Apr Jun Sep and Nov).

Dave Empson

Membre depuis le 01/30/17

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