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> Refitting Cf Card For Sl-c3000, pics, English text, and comments
iamasmith
post May 31 2006, 10:26 AM
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This is a walkthrough of the process.

Do NOT try this unless all of the following criteria are met.

1. You don't care about the Warranty of either the device or the card.
2. You have a single screwdriver that will fit the screws of the Zaurus (they are all pretty much the same).
3. You have a soldering iron and skills necessary to use it.
4. You are really so driven to do it that you have to do it.

Do NOT complain to me, Sharp, your vendor or anyone if you break it badly.

Quite probable pitfalls..

1. You have chosen a card that has slightly higher power requirements than the Microdrive.. will cause failures immediately. Note, a working card in the CF slot does NOT mean a working card inside the Zaurus.
2. Your card may fail much quicker than the Microdrive - Trisoft had a card fail within 1 week of fitting it.
3. You may well strip the screws on the PCB of the Zaurus when removing it.. those robots at Sharp screw em in hard and you MUST have a screwdriver that fits exactly.
4. If you are particularly 'cack-handed' or have a screw driver that doesn't fit then the screw driver may slip and gouge a fairly important part of the unit.
5. You could crack the board.
6. You could zap components with static off your body.
7. You could seriously frustrate yourself tongue.gif

OK.. enough of the warnings, here is the nitty gritty.

Remove all obvious components from the base unit..

* CF Blank, Battery Cover, Battery, Stylus, SD Card Blank an Service Console Gromit from the back of the unit

Attached File  componentsout.jpg ( 93.57K ) Number of downloads: 394


Remove all the screws. Be particularly careful not to lose the screws at the base of the battery compartment inside the unit.

Note all screws are exactly the same so there is no need to ensure that you have them noted for replacement in the same holes.

With the utmost care remove the back housing.. it may seem to come free from the side nearest the SD slot first. Once it is free like this lift the side nearest the battery compartment (the other side is anchored by the earphone socket) and the back should come free without undue force.

Attached File  1stglipseinside.jpg ( 219.85K ) Number of downloads: 483


Take a close look at the main board. The two Marked A hold the board onto the mount. The two Marked B hold the CF housing onto the other side of the board. At some point you need to take them all out, if they will easily unscrew at this point then do it. If not I will suggest a tactic after removing this board.

Now note the area marked C, this varies from Zaurus to Zaurus. some may have a wire soldered here with enough slack to allow removal of the board. If as in this case there is a Copper Foil strip soldered to the unit then you must unsolder it before removing the board.

Attached File  offendingfoil.jpg ( 61.61K ) Number of downloads: 420


Note that each screw has a 'copper track' artwork arrow beside it on the PCB, you will use this to reference their replacement later.

Fold back the board which should now come out quite easily being extremely careful not to damage the ribbon cables attaching it to the screen and keyboard.

Attached File  mobofree.jpg ( 110.9K ) Number of downloads: 383


remove the two flat screws from the SD controller daughter board and remove the daughter board. If you need to apply pressure to the board to do this use something as a stanchion on the other side of the board. I simply placed the CF blanking plate under that area whilst doing this.

This should now lift off.

Attached File  sdcardslotoff.jpg ( 119.17K ) Number of downloads: 318


The next step is to remove the plastic housing for the CF card which has 2 clips and 2 hooks and if you didn't remove them earlier 2 screws (previously marked as cool.gif. If you had trouble eariler then I suggest that you get the SD Card blank, apply a little tape to it and adhere the tape to the Microdrive so that it holds the SD Card blank under the area where the screw is. You should be able to apply a little more force with the screwdriver now without fear of straining the board.

Attached File  cfhousingoff.jpg ( 129.67K ) Number of downloads: 293


Now simply replace the Microdrive with your chosen card...

Attached File  sandiskin.jpg ( 132.79K ) Number of downloads: 415


Now reassemble in reverse order, cross your fingers and do the software engineering bit (I class partitioning the device etc in that area).

-Andy
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iamasmith
post Jun 1 2006, 12:39 AM
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Read it again Ferret, the post is talking about removing the casing from a CF card to make it smaller tongue.gif

Actually there is a point here about the health of a Zaurus with these cards fitted internally. As there is no RF shielding in the area where the card is fitted it might mean that a card that is slightly more noisy than the Microdrive could effect the operation of the Zaurus (note that all bets on CF standards etc are off when you are dealing with these internal slots) - compliance generally takes a consumer unit as a single entity in this respect.

If stability becomes an issue with my card I might find some of that metalicised paper screen stuff to wrap the card in.

-Andy
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