Introduzione
Las generaciones más recientes de muchos aparatos electrónicos tienen baterías que están soldadas directamente a la placa lógica. Esto hace que reemplazar la batería sea mucho más difícil de cambiar que en los equipos más viejos, que usan conectores para conectar la batería a la placa lógica. Esta guía ilustra los diversos niveles de dificultad en la soldadura, y enseña la técnica de soldar tres tipos de conexiones comúnmente vistas en los dispositivos electrónicos:
aso 1: Comienzo - Componentes grandes a través del orificio, como condensadores cilíndricos;
Paso 7: Intermedio - Pequeños componentes de orificio pasante, como cables de batería y resistencias; y
Paso 11: Avanzado - Componentes pequeños de montaje superficial.
Suelda siempre en un área bien ventilada.
Si estás soldando componentes electrónicos sensibles, asegúrate de trabajar en un entorno seguro para descargas electrostáticas (ESD) y utilice herramientas a prueba de ESD.
Cosa ti serve
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Ya se eliminó un condensador de las dos almohadillas de soldadura. Cada almohadilla se calentó mientras el condensador se separaba del tablero.
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Para abrir el agujero bloqueado por la soldadura, caliente la almohadilla de soldadura con la punta de un soldador.
Why not use a simple pump-action desoldering tool which can be obtained cheaply from ebay?
They are not as easy to use especially for beginners.
Desoldering wire is much better and also much easyier to use for beginners
¿plomo? lleva prohibido años, espero que sea estaño. 8(
For god’s sake buy a cheap solder sucker. They are trivial to use. This is a tutorial after all. It’s certainly easier to use a solder sucker than to make a clean solder joint.
Pro tip here - if you are having a hard time taking out solder, USE MORE SOLDER. Yes, it sounds counter-intuitive, but I’ve found that adding a dash of new solder to the troublesome blob you’re working on really helps get out stubborn old solder. Works even better with a solder sucker!
Absolutely get some liquid flux involved here. Flux prevents the hot solder from oxidizing and keeps the liquid metal flowing - either into solder wick or a vacuum sucker.
reccomended tempature?
Usually around 300 - 350° C gets the work done.
good god thank you. finally someone asked & answered. a tutorial for this kind of extremely difficult, heat sensitive work - yet no mention of a safe, recommended temperature.
these tutorials are for beginners after all , aren’t they?
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Cuando la herramienta haya pasado completamente a través del orificio, amplíe el orificio calentando el lado superior de la almohadilla de soldadura mientras lo presiona con la herramienta.
Using a solder sucker will make it a lot safer to the board/copper traces than using a needle or paper clip to clear the hole.
Yes, please use a solder sucker, or even solder wick.
If you don’t have some flux laying around, add a tiny bit of new solder if the old solder is being stubborn and not going away. Sounds odd adding more solder to remove solder, but it works!
Yikes. This is a horrible step. It risks tearing the pad and the via, and it also stretches the FR4 which would create microfractures in the internal layers. Use a lead that the same size or smaller than the hole if you absolutely have to clear it like this. Jamming a scribe into the hole is no bueno!
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Pase la punta del soldador a lo largo de cada contacto para quitar la soldadura del componente. Limpie la punta del hierro entre golpes limpiándolo contra una esponja húmeda.
Don’t use a moist sponge if you can avoid it. Water from a moist sponge will get into your tip’s micro-fractures and oxidize it rapidly. I’ve lost many tips to moist sponges.
Use a cheap solder scour pad instead. They are made of copper, which is soft and will scrub solder away without damaging your tips. If you can’t afford a proper scour pad, make one yourself. Go to the dollar store and buy a copper wire scrubber for like 50 cents. I use the dollar store scrubbers to replace old worn out scour pads.
ADD LIQUID FLUX before doing this step. No mention of flux yet and we’re at Step 4? Maybe we need a guide for the guide!
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Para soldar cada conexión:
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Coloque la punta del soldador contra la almohadilla de soldadura.
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Derrite suficiente soldadura en la almohadilla de soldadura para que el cable de contacto del capacitor se mantenga firmemente en su lugar.
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Retire la soldadura y la punta del soldador de la conexión tan pronto como se derrita suficiente soldadura en la almohadilla.
Using a little electronic soldering paste on both the components leads and board traces will eliminate the need for excessive heat build up, there by making a sound electronic connection.
Not everyone has soldering paste handy unless they are going to do a lot of soldering.
Solder joint on the left is not good. Solder should be shiny and be shaped like the Atari logo.
Solder joint on the right is very good, they should all look like that.
The lack of solder flux here is the reason these joints wouldn’t get anywhere close to being passed by QA. Add flux and try again.
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Los cables se quitaron de las almohadillas de soldadura calentando la unión en el lado superior de la placa, mientras que saca los cables con un par de pinzas.
Desoldeerkabel (koper) gebruiken is aan te raden i.v.m. onder andere warmteafvoer en tin afzuiging. Er zijn ook vacuumpompen om overbodig tin af te zuigen en zo een schoon slodeervlak te krijgen.
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Abra los agujeros a través de las almohadillas de soldadura presionando una grapa enderezada contra la obstrucción mientras calienta la misma almohadilla desde el otro lado de la placa.
Again, if you force any metal object through these holes you increase the chance of damaging circuit board traces on both sides of the board.
Take a green or yellow injection needle. Make the solder hot and push the needle through the hole. Injection needles are made of stainless steel and are not liable to the solder.
Nimm eine grüne oder gelbe Injektionsnadel. mach das Lot heiß und stoße die Nadel durch das Loch. Injektionsnadeln sind aus Edelstahl und haften nicht am Lot.
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Para soldar cada conexión:
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Coloque la punta del soldador contra la almohadilla de soldadura.
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Derrite suficiente soldadura en la almohadilla de soldadura para que los cables de contacto se mantengan firmemente en su lugar.
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Retire la soldadura y la punta del soldador de la conexión tan pronto como se derrita suficiente soldadura en la almohadilla.
Add liquid flux to each pad before inserting the wires.
Ok, you love liquid flux, we got it (i agree with you that flux is your best friend while soldering)
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Para de-soldar la articulación, colocar una mecha de soldadura en la parte superior de la bola de la soldadura existente y presione hacia abajo en la mecha de la soldadura con el soldador.
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Una vez que la soldadura se derrita y fluye en la mecha, retire la mecha de la unión.
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Repita el mismo procedimiento en los cables restantes.
Könnte heiß werden an den Fingern
Halleluiah! Liquid flux in a needle bottle is almost as important as the solder itself. Also, you need to tin that soldering iron tip!
Wanted to add a safety disclaimer for soldering around lithium ion batteries:
BE CAREFUL! Always keep your awareness about how close your iron/hot air is in relation to your battery. This is a critical safety hazard due to the battery being sensitive to high amounts of heat —getting your iron tip or hot air gun in close proximity with any cells of your lithium battery pack could result in explosion and/or fire. 🔥
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Para derretir una pequeña gota de soldadura en cada almohadilla de soldadura:
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Coloque la punta del soldador contra la almohadilla de soldadura.
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Derrita la soldadura de modo que forme una cúpula en la parte superior de la almohadilla.
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Retire la soldadura y la punta del soldador de la almohadilla de soldadura tan pronto como se derrita suficiente soldadura en la almohadilla.
Using a solder wick requires using too much heat and will damage your surface mount component
But what do you use instead?
arno -
A solder sucker.
…or a vacuum removal tool. Ceramic caps are absolutely notorious for cracking when overheated. Cracks=shorts in MLCC.
MLCC stands for ? Sorry, I’m french
Bonjour Gilles, voilà l'équivalent en français "condensateurs céramiques multicouches"
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Better still, apply some flux and touch it with the soldering iron and it will then flow properly.
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Para soldar los cables nuevos a la placa, coloque el extremo desnudo de un cable en el cordón de soldadura en su correspondiente placa de soldadura.
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Presione la punta del soldador sobre el cordón de soldadura hasta que se derrita.
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Deslice el extremo expuesto del cable en la soldadura líquida hasta que esté en el centro del talón, luego retire el soldador.
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Continúe con las otras conexiones de la misma manera, teniendo especial cuidado de no soldar dos de las almohadillas juntas.
The pronunciation of soldering - the whole rest of the world apart from the USA pronounces it like it is spelt - with a hard “l”. That weird pronunciation goes with all the non SI units, and using volume measurements to cook recipes - I can go on……
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Para volver a armar tu dispositivo, sigue estas instrucciones en orden inverso.
Para volver a armar tu dispositivo, sigue estas instrucciones en orden inverso.
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36 Commenti
TIP: Another method which works well for clearing solder from holes (especially on repairs like AC Jacks on laptops) is to use compressed air to clear melted solder from holes. A quick blast with a duster can works well (I have even used a drink straw in a pinch and blown out with a blast of air from mouth). Heat the solder until it liquefies, put the duster straw right above the solder and quickly hit the melted solder with an air blast to instantly clear the hole of solder. This works well on very small holes as melted solder does not always push out cleanly with metal tools. You have to be quick with the air blast because the solder re-hardens rapidly.
just be careful doing this lol, flying molten solder can and will burn you or other components.
Logixal -
Flying solder might also get into places you don't want it. Making shorts and other unwanted connections of which you don't know where they are, so it can give you a very hard time finding them.
This is not IPC standards but for the ghetto approach, it will get the job done. I solder in manufacture settings, run my own shop. This is wrong to a degree but will do. If ifixit would like tips from ILLFIXIT then your more then welcome!
yeaaaa….. i was going to say something along these lines lol. itll get the job done but its by no means the right \ best way to do the job.
Logixal -
A very good guide to soldering.
I have never soldered anything (I'm a girl you see), but your clear and detailed guidance inspired me to give it a go.
I was well prepared in advance-it could be difficult-and that helped a lot.
I have now got a new battery soldered into my Palm TX and I'm as happy as Larry (or Lorraine in this case)..
Go Gurl! I'm a gurl, too. I worked in my dad's machine shop for 13+ years. I hit the ground running. Programmed, set up, and fixtured, retro-fitted CNC Mills, using SurfCam and G Code programming. We used Master Cam for the wire EDM. My fave was running a standard lathe. I guess I enjoy cylindrical objects. We held tolerances of .005+/- .001, all the way down to .0003+/-.0002. That…is very microscopic. lol
…add to that, Public Relations, Inventory, Inspector, Fixing Crashed tools, Shipping, Document Control, and so on. All I know is, if it needs to be done, it can be done, if your sharp. And, sometimes we gurls, have a different “feel” for delicate or fine work, as compared to some of the guys. There is nothing we cannot do, as well as anyone else, if we want to, and are willing to learn, and practice. I'm ready to try a little delicate connecting, myself.
Happy Trails and Tablets,
PoniGurll, or
DIY Gurll, otherwise, it won't get done!!
Using a solder wick braid is a good thing to do every time you are trying to remove solder from the thru-hole and pad. This is because after you use the solder wick you have a clean hole and a clean pad with just a slight film of solder on it and you have a nice open workspace without any old solder in there. Old solder doesn't have solder flux anymore -it's burned off-and won't "flow" around the component or wire leads and leaves an icy-looking "cold" solder joint, a dull grey glob of solder that is weak and doesn't conduct electricity very well. By wicking it off, the new solder, which does have solder flux, will be shiny, smooth, quite strong and conductive. I've been soldering since the early 70's and solder wick is a good friend if you use it right. No need for staples or picks, either.
Also, to help the solder wick pickup the solder faster and to help clean the solder pad at the same time, put just a little flux on the wick before applying the iron to the wick, then wipe the area clean with some alcohol, works great.
C.Vos -
Perfect Illustrations, Thank you.
I found this to be a clear and easy tutorial on how to solder to remove and install small electrical components. Excellent for beginners and useful for experts in teaching situations.
Very good guidance
another tip is if you do not have a soldering station and your iron gets too hot just unplug it and continue and never ever dunk your soldering iron in flux if it is excessively hot because it will take the conductive coating off the tip of your soldering iron. also dont dip touch the tip of your iron (while its off) because the oils from your hand can burn through the tip like the flux.
ps: this is from my personal experience and its just some things to look out for
Nice job!
Well done,,,,
This is a good job thanks.
Nice post describing PCB Repair soldering with images. It is quite easy to understand also.
Sooo just bought a soldering iron, never used one before in my life, re attaching wires to a little motherboard for a light switch and dimmer, this page literally just taught me exactly what i needed to know and success the first try! Thank so much! finally someone knows they’re stuff instead of me having to go through 30 different pages of nothing on google lol respect dude! keep it up!
Great guide! It also helps to use a bit of flux on the points to aid with adhesion of new solder to the contact points, and to help with heat transfer from the solder tip onto the solder pad.
I need to solder my wifi it came loose on my insignia tablet. All i need to know is where its located on mother board. Please guide me
Don’t forget to use plenty of flux!
I was quite surprised that flux wasn’t mentioned anywhere in this guide - and the pictures are proof that none was used.
Really great photographs with excellent descriptions.
I believe any soldering procedure should start with selecting the right wattage soldering iron and tip for the task. Common small wattage soldering irons commonly used to solder small electronics are 15 to 45 Watts.
Second is tinning a new soldering iron tip. Tinning means the first time the tip is heated you melt solder onto the tip until solder sticks to the tip. Even if a tip is factory tinned you’ll want to tin it yourself. Solder needs to stick to a tip to correctly aid in the transfer of heat from the iron to the component.
Another (cheap) way to clean solder off connections is to use a squeeze bulb with a silicone tip. The squeeze bulb creates a vacuum when it is squeezed and the vacuum sucks the melted solder up into the bulb.
Plug in the soldering iron. Wait for it to heat up… test by tapping solder on to the soldering iron tip. Having ‘tinned’ the soldering tip, apply the tip to the component leg and PCB. If the component leg is comparatively ‘thick’, apply more heat to the leg than the PCB. Tap the solder jointly on the component leg and the iron tip. If the component leg is at the right temperature, the solder will flow and make a sound electrical connection. If the component leg is not at the right temperature, the solder will melt on the iron tip and ‘drip’ onto the component not making a good connection.
I’d never do any soldering without a solder sucker e.g. https://www.amazon.co.uk/Draper-23553-De... but be careful when using it on delicate PCBs as the suck can lift circuit tracks where too much heat has been applied.
I’m a little late with my comments but just had to brag about my younger days with Heathkits and other companies! I learned how to solder the hard way (without any instructions) and put together a B/W TV, a color TV, an AM/FM receiver and various other little projects. I understand Heathkit is coming back and encourage you younger people to enjoy the hobby of putting together their kits after doing these soldering lessons.
Absolutely. I’ve worked alongside women in the US Navy. Most of them are very competent, excellent technicians. Like guys, though, you have your whiners and slackers. We are all the same.
Some information in the top title area was misleading, as the iPod isn’t sold anymore (except for the touch with a soldered battery) and the iPhone has had a socketed battery since 2008. I fixed it in the latest unverified version.
Bonjour! mon nappe de batterie de telephone est cassé au milieu et j’ai une idée de relié avec de fil , qu’est ce qu’on va faire?merçi
and where/how do we post future questions ?
practice on eWaste first
This is for "Introduction" but didn't see how to comment there.
Says "newer generations" have soldered batteries but there's no reference as to when this was written so that's not very meaningful. Request clarification.
Joe - Replica
加熱してハンダが融けたことを確認してから、部品をゆっくり引き上げて外してください。
n s - Replica
Are we to assume that “ESD” stands for “ElectroStatic Discharge?” Keep in mind that newbies (like me) don’t commonly see or use these abbreviations.
ronherrmann - Replica
That is correct! I’ll adjust the introduction to clarify that.
Arthur Shi -