Monday, May 25, 2009

DW-6700 Clean up (modem burner)- Updated

One of my favourite Casio G-Shock is the DW-6700. This watch was issued in 1994 and is known as the Skyforce. As can be seen from the picture below, this watch too has suffered from water ingression. After my experience with my DW-8030G, I decided to clean this watch as well. It was not as easy as the DW-8030G as this watch has a temperature sensor. So I have to be more careful. Here it is. Be warned that this is long.



Cleaned the work area and got all the tools out. The first step, strap removal.



Straps.



Now to begin work on the watch. First lets remove the bezel. It is held by 4 screws at the 4 corners.



The bezel screws. Notice it is not threaded all the way to the head. This is to hold the bezel to the case.



The bezel. Inside view and outside.



The case. In the picture below, you can see the sensor. It is protected by a plate and is held by 2 screws.


Now to remove the case back. As usual, I tend to remove the case back screw with the case back pressed down and removing the screws in a cross formation, a few turns at a time. This is to prevent stress on the resin body if the case back were to 'pop' or warp.


The case back removed. We can see the rubber spacer. This is used to hold the module in place and also to provide additional shock proof capabilities.


The module 1230. I have no idea what the 'Do Not Turn' is for but I suspect it is some sort of temperature compensation adjustment. Anyone?


The case back. Again, I don't know the significance of the number '116'.


The next step is to remove the battery. This is to prevent any 'shocks' to the electrical circuit as I will need to remove the sensor from the module. Unlike other G-Shock that I have seen, the battery cover is actually screwed down. The battery is the standard CR2016.



Now to disconnect the sensor from the module. If the sensor is not disconnected, the module would not come out. I tried to remove the sensor from the case but could not, so this was the next logical step. The following photographs shows my attempt to remove the sensor from the case. The plate removed.


The sensor. We can see the o-ring around the sensor. We will see the o-ring later.


Now to remove the sensor. Before we do that, remove the 2 springs that are located near the sensor. We will see the springs in more detail during the assembly process. Unscrew the plate that holds the sensor circuit to the main circuit.


Pull the tab and slowly lift the PCB. It has 2 guide pins, top and bottom (grey colour pins).



The retainer plate for the sensor circuit.


The module removed. We can also see the retainer ring with its rubber sheath. This also provides the shock protection. The cut-outs at the 4 corners are for the buttons and the other cut-out is to locate the ring in the case. We will see this in more detail on assembly.


The sensor circuit tab in the case.



As usual, cleaning is by soft tooth brush and mild soap. Cleaning and drying using my Bergeon cloth and Rodico. Blow dry with a hair dryer set on low heat. We have to be careful not to damage the rubber dial. Careful to completely dry the sensor circuit.

Once dried, and cleaned, the assembly process can take place. The o-rings are lubricated. In the picture below, the smaller o-ring is the sensor o-ring.


The assembly process. Align the spacer ring to the case. Note the cut-out at the 6 o'clock position. Align it with the tab on the case.


Insert the module and align the sensor circuit to the main circuit. Note the grey alignment tabs. Screw down the circuit retainer. Remember the 2 springs? Well in the photograph below, we can see the 2 holes where the springs are suppose to go. I have no idea what are the functions of the springs.


The springs inserted.


The battery can now be inserted. We then check to make sure everything is working. Also check that the module is straight and align. Next the rubber spacer can be fitted.

Please note that the spacer is wrongly fitted. It should be as below. Thanks to our reader Raitis who spotted the mistake.



Install the case back. Press the case back against the case and screw the screws into the case. Again I cross the screw process to ensure the case back is fitted straight. This also prevents stress to the case. Once tighten, I then go around once more in a clockwise direction to give the screws a final tightening screw.


The straps are fitted and the final result?


A larger photograph.


23 comments:

  1. hi ivan,

    excellent job there :-)

    i just received the purple version of this watch.

    do you know where i can find the manual in pdf?

    the usual casio manual archive does not have.. perhaps this model is too old.

    cheers.

    dave (sg-shock)

    ReplyDelete
  2. Hi Dave,

    What is your module no? is it 1230 or 1231? The difference is that the 1231 is JDM which does not have the F for the temp. Try here:

    http://www.settinginstructions.com/ProductInfo.aspx?productid=922

    ReplyDelete
  3. cool! i believe mine is module 1230.

    you've been a great help ivan. :-)

    cheers.

    dave

    ReplyDelete
  4. Hi Dave,

    No problems, glad I was able to help.

    Regards,

    Ivan

    ReplyDelete
  5. Hi to all!

    Where can I buy a plastic cover ith the bracet? i'm in portugal. My Email is pinto.novo@gmail.com

    Thanks!

    Ricardo

    ReplyDelete
  6. Hi Ricardo,

    Welcome to the blog. I have sent you an email.

    Best regards,

    Ivan

    ReplyDelete
  7. Hi Ivan,

    I have same great Skyforce watch as you. Unfortunate it is pretty bad shape, bezel is broken and the watch band is missing parts. Is there any chance to find new bezel and bring this one to life? Here are the pics:
    http://img138.imageshack.us/gal.php?g=p2110076.jpg

    ReplyDelete
  8. Hi Pup,

    Apologies for the delay in response. I would try your local Casio Service center to see if they have stock of the bezel. Other options include posting a Want To Buy ad on popular watch websites.

    All the best with your hunt.

    Best regards,

    Ivan

    ReplyDelete
  9. Hi Ivan,
    question - how do you remove the straps from this one? the metallic parts holding them in place seem not to move at all...
    Thanks,
    Raitis

    ReplyDelete
  10. Hi Raitis,

    Welcome to the blog. With regards to your question, the straps are held by spring bars. You can gain access to the spring bars from the back of the watch.

    Hope that helps.

    Best regards,

    Ivan

    ReplyDelete
  11. Hi,
    thanks, 2 mins later I had figured it out, but your guide was very helpful.
    Though, the rubber spacer, I think you aligned it incorrect at the assembly. It seems my watch was never cleaned (just bought it for 20 bucks in your currency), an the spacer was aligned so, that the round cut in the middle fits to the round spot on the metal cover.
    Raitis

    ReplyDelete
  12. Hi Raitis,

    Thank for the information on the rubber spacer. I have corrected the rubber spacer with a new photograph.

    Great catch at USD 20.

    Best regards,

    Ivan

    ReplyDelete
  13. Ivan thank you for the write up!

    I just bought a DW-6700 used as a display. It still has the original battery and there is some discoloration/peeling on the black plastic frame dight under the glass. I was looking at picture 23 (the one before the two o-rings) and wonder if I can take that black frame out and clean the visible parts and the back of glass? I suppose it isn't possible as you haven't described it, but just wanted to make sure.

    Thanks again for sharing this awesome work!

    ReplyDelete
    Replies
    1. Hi BBL,

      Welcome to the blog. With regards to your question, I suspect it is possible, but I don't know how to. Maybe it can't, just not sure. I did not try as I was afraid to break the plastic pieces.

      All the best.

      Regards,

      Ivan

      Delete
    2. Thank you for your response, Ivan! All the best for the new 2014! Many new watches to fuel our passion!

      Delete
  14. Hi BBL,

    All the best to you and your family in 2014 as well. May the new year be a bountiful year for you and your family.

    Best regards,

    Ivan

    ReplyDelete
  15. Hello Ivan
    I'm form Brazil and I bought one DW 6700 some years ago, however the bezel gets broken.... It is been a long time that I'm trying to find one, but with no success... can you help me?
    Thanks a lot
    Fábio (fstremel@yahoo.com.br)

    ReplyDelete
    Replies
    1. Hi Fabio,

      Try your local Casio service center. All the best.

      Regards,

      Ivan

      Delete
  16. Hi Ivan
    thank you for the very useful information. I've the same problem of Fabio. Apart Casio service center, do you know any on-line sites where it's possible to buy a bezel for my old DW 6700?
    And, if I may, do you have any idea where I can find a guide for changing the battery of the Casio AW 340 (cod. 732) ?
    Thank you very much

    ReplyDelete
    Replies
    1. Hi from Istanbul. Could you find the type of battery for AW-340?

      Delete
  17. Hi I'm from Philippines is there a replacement of the cover of my DW-6700? Does Casio service center still have components of these? Coz I think its already outdated. Thanks

    ReplyDelete
  18. This comment has been removed by a blog administrator.

    ReplyDelete