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From: mike on 16 Mar 2010 19:58
123Jim wrote:
> Hi all,
> I was trying to replace a power jack on an inspiron 1501 laptop. An
> operation I have avoided for some time due to the possible outcome being the
> catastrophic destruction of the motherboard or components thereof.
>
> I removed the motherboard , but could not melt the solder sufficiently to
> release the power jack. I used two different 30 watt soldering irons with
> sharp and not so sharp iron points and one 100 watt soldering gun.
>
> My technique leaves a lot to be desired: place motherboard on newspaper,
> place finger under motherboard next to jack, apply iron to one joint at a
> time so that it melts the solder and pushes through. unfortunately there
> being 8 joints and stubborn solder made it impossible to move. The best way
> would be to heat all eight joints simultaneously, but I have no idea how to
> achieve that.
>
> what I need is a nice soldering guide, specifically for computer parts.
>
> any ideas?
> cheers
>
>
Can you not bust the plastic to free up the individual pieces
for removal one at a time?
From: 123Jim on 17 Mar 2010 05:39

"mike" <spamme0(a)go.com> wrote in message
news:hnp600$soc$1(a)news.eternal-september.org...
> 123Jim wrote:
>> Hi all,
>> I was trying to replace a power jack on an inspiron 1501 laptop. An
>> operation I have avoided for some time due to the possible outcome being
>> the catastrophic destruction of the motherboard or components thereof.
>>
>> I removed the motherboard , but could not melt the solder sufficiently
>> to release the power jack. I used two different 30 watt soldering irons
>> with sharp and not so sharp iron points and one 100 watt soldering gun.
>>
>> My technique leaves a lot to be desired: place motherboard on newspaper,
>> place finger under motherboard next to jack, apply iron to one joint at a
>> time so that it melts the solder and pushes through. unfortunately there
>> being 8 joints and stubborn solder made it impossible to move. The best
>> way would be to heat all eight joints simultaneously, but I have no idea
>> how to achieve that.
>>
>> what I need is a nice soldering guide, specifically for computer parts.
>>
>> any ideas?
>> cheers
> Can you not bust the plastic to free up the individual pieces
> for removal one at a time?

I didn't think of that. That would indeed help, as long as I can actually
melt the solder on one joint at a time, and in destroying the jack as you
suggest, I don't damage the board. The jack has a metal case, but that could
be snipped through. or maybe better ... hacks gently.

I'm glad I didn't think of it though! .... as after all the heating, pulling
and squashing of the jack. It now give a good fit on the cable, and now the
laptop has reliable power from the mains. (Even though it does not charge
the battery) ..

In addition to the bad jack .. the other problem with this laptop is, the
battery is in bad shape and does not hold a charge for any length of time..
so not being able to charge this battery is not a great loss until a new
battery is procured. that expense might be avoided until this jack is
broken, worn out and finally replaced (successfully next time), if it ever
is .. since not having battery backup will result in the laptop being more
like a desktop where you must keep the power connected. That will result in
less wear on the jack ... ( just so long as having people's legs hooked up
in the cable can be avoided)


From: GT on 17 Mar 2010 07:02
"123Jim" <jnkjnjnini(a)uhnuhnunuhnuy.invalid> wrote in message
news:hnnup8$uuq$1(a)news.eternal-september.org...
>
> "GT" <ContactGT_rem_ove_(a)hotmail.com> wrote in message
> news:4b9f50c2$0$14947$c3e8da3(a)news.astraweb.com...
>> "123Jim" <jnkjnjnini(a)uhnuhnunuhnuy.invalid> wrote in message
>> news:hnnht7$f95$1(a)news.eternal-september.org...
>>> Hi all,
>>> I was trying to replace a power jack on an inspiron 1501 laptop. An
>>> operation I have avoided for some time due to the possible outcome being
>>> the catastrophic destruction of the motherboard or components thereof.
>>>
>>> I removed the motherboard , but could not melt the solder sufficiently
>>> to release the power jack. I used two different 30 watt soldering irons
>>> with sharp and not so sharp iron points and one 100 watt soldering gun.
>>>
>> What you need is one of those devices that suck solder away once it has
>> melted, then you can go round as many legs as you need to. Don't know
>> what they are called, but have seen them in Maplins (UK).
>
> I have two of those devices but haven't figured out how to apply this
> sucker device before the solder solidifies. You'd need three hands! and
> the reflexes of a cat.

Am I missing something - don't you just work the 'sucker' with one hand and
the soldering iron with the other hand?


From: 123Jim on 17 Mar 2010 08:17

"GT" <ContactGT_rem_ove_(a)hotmail.com> wrote in message
news:4ba0b690$0$16127$c3e8da3(a)news.astraweb.com...
> "123Jim" <jnkjnjnini(a)uhnuhnunuhnuy.invalid> wrote in message
> news:hnnup8$uuq$1(a)news.eternal-september.org...
>>
>> "GT" <ContactGT_rem_ove_(a)hotmail.com> wrote in message
>> news:4b9f50c2$0$14947$c3e8da3(a)news.astraweb.com...
>>> "123Jim" <jnkjnjnini(a)uhnuhnunuhnuy.invalid> wrote in message
>>> news:hnnht7$f95$1(a)news.eternal-september.org...
>>>> Hi all,
>>>> I was trying to replace a power jack on an inspiron 1501 laptop. An
>>>> operation I have avoided for some time due to the possible outcome
>>>> being the catastrophic destruction of the motherboard or components
>>>> thereof.
>>>>
>>>> I removed the motherboard , but could not melt the solder sufficiently
>>>> to release the power jack. I used two different 30 watt soldering irons
>>>> with sharp and not so sharp iron points and one 100 watt soldering gun.
>>>>
>>> What you need is one of those devices that suck solder away once it has
>>> melted, then you can go round as many legs as you need to. Don't know
>>> what they are called, but have seen them in Maplins (UK).
>>
>> I have two of those devices but haven't figured out how to apply this
>> sucker device before the solder solidifies. You'd need three hands! and
>> the reflexes of a cat.
>
> Am I missing something - don't you just work the 'sucker' with one hand
> and the soldering iron with the other hand?

Well the problem then is, how to stop the motherboard jumping off the table.
(practice is all that is required I guess :) .. .. and drinking coffee at
the same time doesn't help


From: GT on 17 Mar 2010 09:15
"123Jim" <jnkjnjnini(a)uhnuhnunuhnuy.invalid> wrote in message
news:hnqh9e$qf3$1(a)news.eternal-september.org...
>
> "GT" <ContactGT_rem_ove_(a)hotmail.com> wrote in message
> news:4ba0b690$0$16127$c3e8da3(a)news.astraweb.com...
>> "123Jim" <jnkjnjnini(a)uhnuhnunuhnuy.invalid> wrote in message
>> news:hnnup8$uuq$1(a)news.eternal-september.org...
>>>
>>> "GT" <ContactGT_rem_ove_(a)hotmail.com> wrote in message
>>> news:4b9f50c2$0$14947$c3e8da3(a)news.astraweb.com...
>>>> "123Jim" <jnkjnjnini(a)uhnuhnunuhnuy.invalid> wrote in message
>>>> news:hnnht7$f95$1(a)news.eternal-september.org...
>>>>> Hi all,
>>>>> I was trying to replace a power jack on an inspiron 1501 laptop. An
>>>>> operation I have avoided for some time due to the possible outcome
>>>>> being the catastrophic destruction of the motherboard or components
>>>>> thereof.
>>>>>
>>>>> I removed the motherboard , but could not melt the solder
>>>>> sufficiently to release the power jack. I used two different 30 watt
>>>>> soldering irons with sharp and not so sharp iron points and one 100
>>>>> watt soldering gun.
>>>>>
>>>> What you need is one of those devices that suck solder away once it has
>>>> melted, then you can go round as many legs as you need to. Don't know
>>>> what they are called, but have seen them in Maplins (UK).
>>>
>>> I have two of those devices but haven't figured out how to apply this
>>> sucker device before the solder solidifies. You'd need three hands! and
>>> the reflexes of a cat.
>>
>> Am I missing something - don't you just work the 'sucker' with one hand
>> and the soldering iron with the other hand?
>
> Well the problem then is, how to stop the motherboard jumping off the
> table. (practice is all that is required I guess :) .. .. and drinking
> coffee at the same time doesn't help

The motherboard shouldn't jump on its own - you have it on a non-slip +
antistatic mat right?

An upside down mouse mat might do the trick.


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