In thanks to this list and the 2400c website, I wanted to describe, 
(as a complete electronics novice who still doesn't understand 
anything about electricity), selected tips on successfully opening up 
and closing a 2400c.  These tips, as elaborations to already written 
dissassembly instructions, might not be relevant to everyone but they 
worked for my situation, and I think they helped me have success.

1. Print out and read ALL available disassembly pictures and verbal 
instructions.  This is most important. Become very familiar with what 
the insides of a 2400c look like before you crack it open.  Print out 
the 2400c blown up schematic that is found in the 2400c service 
manual.  All instructional materials I reference can be found through 
web connections that start with the 2400c web site.  That's how I did 
it.

2. Get a piece of cardboard, about 8"x10", and run two rows of 
double sided scotch or carpet tape from top to bottom, the 2 rows 
about 4 inches apart.  This is where you put each screw you take out, 
head of the screw down on the tape.  Next to the sets of screws you 
have pen ready to write a description of where the screws came from. 
Follow the sequence removal order of  left to right and top to bottom 
and run the screws down one row of tape and then start back up at the 
top of the next row of tape.  When you have completely dismantled the 
2400c, you will have an impressive collection of little tiny screws.

3. Purchase a good wrist grounding  strap and anti-static conductive 
foam pads to place the components on as you remove them.  Also, you 
need set of jeweler's phillips and slotted screw drivers, a tweezer, 
and a spray can of dusting air to use for cleaning if need be. All 
supplies I got at Radio Shack.  Clean a large desktop area with good 
light and plenty of space.  Have 2 hours  of undisturbed time 
reserved to do the disassembly and assembly.  You won't need the 
whole time but the point is to eliminate all points of stress that 
you can.

4. Ground the wrist stap.  Since I didn't know exactly what this 
involved and now kind of do, I offer the following suggestion.  Undo 
the faceplate of a nearby grounded electrical outlet. Remember to 
avoid electrocuting yourself by turning off the power.   Find the 
ground wire.  Either attach a wire to the ground to which you attach 
your wrist strap or if the ground wire touches the metal outlet box, 
attach your wrist strap to the metal box.  I'd be interested in other 
ideas to easily get a good ground source for your wrist strap.

3.  Remove the grey vinyl screw covers by cutting off a small piece 
of  sticky tape such as duck or strapping tape, place over screw 
hole, and burnish over the top of tape with a blunt pointed object. 
Carefully remove the tape and the vinyl cover will peel out of the 
hole.  It is easy to reinsert the cover when putting everything back 
together so that everything will look like new.

4. Don't hold your breath.  Since this is not a quick procedure, you 
want to maintain a steady hand over a long period of time.  Don't 
drop any screws into the innards!  Concentrate on consistent 
breathing in and out as you work.  Loosen each screw completely, grab 
it with the tweezers, place it on the cardboard tape, and write out a 
description of where it came from.

5. Use a very small slotted screwdriver to loosen the side tabs on 
the buckles that hold the ribbons.  Gently go from side to side as 
you finally loosen the buckle and ribbon easily slides out.

6. Force nothing.  If something doesn't move such as the 
wristpad/trackpad/sidecase assembly or the circut board assembly from 
the bottom case, stop.  Reread your printed out instructions.  If it 
says these components should be simply detaching or sliding apart, 
and they don't appear to do that at the moment, try to understand 
what is catching the parts up.  The culprit is something that is 
binding.  Follow the edges of the component that should be separating 
with a very small slotted screwdriver.  You will find what is binding.

7.  Party down when you slap the thing together, successfully turn it 
on, and notice that one little screw is no longer rolling around in 
the bottom of the case.  Putting that screw back where it fell from 
was the whole point I went through this ordeal.

Thanks again to all who shared the knowledge to allow electronic 
dunces as myself to experience the joy of do-it-yourself electronic 
repair.



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Keeping in Touch...

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