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    Desoldering tip needed

    Discussion in 'Panasonic' started by Toughbook, Apr 28, 2008.

  1. Toughbook

    Toughbook Drop and Give Me 20!

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    Please don't move this thread (To the super mods) I want THESE guy's opinions....

    I am trying to desolder the DC jack of a (yuck) Dell 600M. I have the mobo out (A feat in itself!) and the DC jack just came off in pieces. (VERY bad design!) So now I just have 4 of the 9 pins left to desolder. They are sticking out of the mobo like little stobs... Just barely enough to get a hemostat onto... JUST barely.... I have been trying to heat them up enough to pull out with the hemostats. But these are the outside case pins and are a friction fit as well as soldered in. AND they are tiny! Any words of wisdom on trying to get these guys out of there so I can solder in the new jack?
     
  2. gravitar

    gravitar Notebook Deity

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    got desoldering wick?
     
  3. Modly

    Modly Warranty Voider

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    I've got a nifty desoldering iron that has a suction bulb (a tough turkey baster if you will) for that purpose. I cheaped out on mine (It is a 45W $15 piece), but for the small amount I've had to desolder I couldn't justify a better one.

    You press in the bulb, heat up the solder, release the bulb, and it should suck the hot solder up.

    Repeat a few times til it's loose.

    Hope this link works;
    http://www.amazon.com/ECG-J-045-DS-Watt-Desoldering-Iron/dp/B00068IJSG
     
  4. ZeroFlight

    ZeroFlight Notebook Evangelist

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    The suction bulbs are a decent cheap way to go. I usually try to put the pice above two objects, heat the pin and try to push it through with another object like a safety pin while the solder is melted. If the jack is intact, I just do a little, then move to the next pin and so on, slowly working it out.
     
  5. Toughbook

    Toughbook Drop and Give Me 20!

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    Yup... I have the desoldering tool with the bulb.. Yes... I have the desoldering wick... Neither are any help. I have 5 of the 9 pins removed. The 4 that are left are from the outside case (Ground) and are a bear as they are apparently a force fit as well as being soldered. The jack started to fall apart when I took the mobo out so I went ahead and bent the case off the board. This may have been a wrong move as now there is much less leverage to try to get the pins out.

    I'll try it again tomorrow when I'm a little less frazzled.

    Thanks guys!
     
  6. Modly

    Modly Warranty Voider

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    If you have compressed air, try heating the joint up and blowing the lead out (be careful).

    It's a last resort. I've got a scar on two fingers from hot solder and a similar trick. Lesson learned... Don't spray towards your skin :D
     
  7. denrosten

    denrosten Notebook Evangelist

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    Rick,

    Drill a hole (1 mm) in the place where the new plug must come, if it are just the outside pins, it does not matter if you can solder 1 of 4 after this operation.

    Derick
     
  8. onirakkiss

    onirakkiss Notebook Deity

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    All what u have done is the right way. But now u can use an air heater for the soldering an desoldering. It's should be easy: heat them up and pull while u turn clock and counterclockwise with a hemostat the pins off. Or if this pulldirection wont work; push them trough the mobo with a thick needle (after u had heat them up).
    And finaly: the overkill:
    Load an big old capacitor (>4700mikroF/100V) with an voltage around 24V. Remove the capacitor from the powersource, BUT BE CAREFULL NOT TO SHORTEN OR HANDLE HIS PINS. Now lay one end of the capacitor with an copperwire on the one side of the pin on the mobo and an aluminiumwire (taken from an resistor or so) from the other end of the capacitor to the other side of the pin on the mobo .....BUMM!!.... Little big flash and noise and now should the aluminiumwire weld to the pin on the mobo. Now u have an longer pin :) . If this helps, let us know.
     
  9. capt.dogfish

    capt.dogfish The Curmudgeon

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    I think I can visualize the problem. Could you grind the pin off the board with the dremel, then just drill a new hole which removes the rest of the old part?
     
  10. Modly

    Modly Warranty Voider

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    I think you are right, his problem involves tight holes (I wish I had that problem), so the pins don't want to get out.

    Drilling them might be your best bet.
     
  11. TBtech29

    TBtech29 Notebook Evangelist

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    hey now modly, this is a family forum,
     
  12. Toughbook

    Toughbook Drop and Give Me 20!

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    <cackling>

    Thanks guys... I was waiting for someone to mention the "D" word... I have a ton of drill bits for motherboards.... I think I will just drill out the remaining 4 pins... It seems to be the best idea. I really don't want to keep heating up the corner of the mobo. I've already scraped of a teenie (IE Head of a pin), small reesistor that I need to solder back on.

    I'll keep you posted. The problem is that I have to finish this job before I can do anything else as it is ALL over my workbench!
     
  13. Toughbook

    Toughbook Drop and Give Me 20!

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    Well... I drilled the 4 remaining pins out... Now to get it all back together! :confused:
     
  14. TBtech29

    TBtech29 Notebook Evangelist

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    have fun with the pos tb, atleast the toughbooks were designed to be easy to access stuff. =) with the 30 as the exception that is.
     
  15. Toughbook

    Toughbook Drop and Give Me 20!

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  16. Toughbook

    Toughbook Drop and Give Me 20!

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    Well it's back together and working. Dell has a VERY poor DC adapter design....

    So.... 5 hours of "free" work for a neighbor..... Well... I might be able to get a BIG botle of Jack out of him... That will suit me just FINE!

    <hic>
     
  17. pappy42

    pappy42 Notebook Evangelist

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    Should've had the J&C before you started onthe dell; it would have gone faster.
     
  18. gravitar

    gravitar Notebook Deity

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    Its times like those that make you really appreciate toughbooks :) I got a very similar request a few months back, but it was for a Toshiba. MAN what a PITA to try to take that thing apart! I was so worried I was going to break that flimsy plastic housing!
     
  19. Modly

    Modly Warranty Voider

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    I got a broken Compaq a year or so ago, and I did break it taking it apart. Lucky for me I was only harvesting it for parts, but that case was so easily damaged... ack.
     
  20. Toughbook

    Toughbook Drop and Give Me 20!

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    Heh heh... The case was ALREADY cracked and broken... I glued it back together from the inside. Get this... After I started it up... I found a 30GB hard drive with 200MB space left on the drive.

    I also found the programs, Adaware, Spybot, HijackThis, etc... I guess it all came from the Limewire she had installed. So... The next request was to put in a larger hard drive and more RAM.... So that is tomorrow. I gave it back so they could take off what they need to save before the reformat. Good luck is what I say... It was so crammed with crap the touchpad was only working when the hard drive wasn't churning... Which was .000001% of the time.

    So I get to start with a clean slate tomorrow... I'll install that while I build another UTB for a certain someone...
     
  21. mnementh

    mnementh Crusty Ol' TinkerDwagon

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    Ummm... so... you have a problem with Adaware, Spybot & HijackThis?

    I mean... these are REALLY good programs for detecting & removing a broad range of malware... I use them all myself on a regular basis. I am a more careful than most internet user & I STILL manage to pick up some crapwarez from time to time...

    mnem
    Rule of thumb on the internet- The flashier it is, the more annoying it it, the more it tries to get your attention - the likelier it is to be malware.
     
  22. Toughbook

    Toughbook Drop and Give Me 20!

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    Mnem... I'm not against them! FAR from it... I'm all for them! But I prefer a good offense and prevention rather than, "How do I fix this now that my laptop is all screwed up?"

    Verstehen Sie, was ich meine?
     
  23. Toughbook

    Toughbook Drop and Give Me 20!

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    It was... and I did... And it's all back together and given back to the customer.
     
  24. Modly

    Modly Warranty Voider

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    He just copied my post, and made it italic... did he forget to post his comment too?