Introduction
Molti dispositivi elettronici di nuova generazione sono dotati di batterie saldate direttamente alla scheda madre. Ciò, complica di molto la sostituzione della batteria, rispetto ai modelli precedenti, che utilizzano dei connettori per collegarla alla scheda madre. Questa guida illustra i vari livelli di difficoltà della saldatura e insegna la tecnica per saldare i tre tipi di connessioni tipici dei gadget elettronici:
Passo 1: Principiante: Componenti a foro passante di grandi dimensioni, come condensatori cilindrici;
Passo 7: Intermedia: Componenti a foro passante di piccole dimensioni, quali cavi di batterie e resistenze; e
Passo 11: Avanzata: Componenti a montaggio superficiale di piccole dimensioni.
Salda sempre in un'area ben ventilata. Se stai saldando componenti elettronici delicati, assicurati di lavorare in un ambiente sicuro da scariche elettrostatiche e di utilizzare strumenti antistatici.
Ce dont vous avez besoin
-
-
Un condensatore è già stato rimosso dalle due piazzole di saldatura. Ognuna di esse, è stata riscaldata durante la rimozione del condensatore dal circuito.
-
-
-
Per aprire il foro bloccato dallo stagno, riscalda la piazzola di saldatura con la punta di un saldatore. Spingi attraverso lo stagno fuso dal lato opposto, utilizzando una graffetta o un ago da cucito.
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?
-
-
-
Quando l'utensile ha attraversato completamente il foro, allarga quest'ultimo riscaldando la parte superiore della piazzola di saldatura, continuando a premere sul foro con lo strumento.
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!
-
-
-
Percorri le estremità di ogni contatto con la punta del saldatore per eliminare gli eccessi dal componente. Pulisci la punta del saldatore tra una pulizia e l'altra, strofinandolo su una spugna umida.
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!
-
-
-
-
Per saldare ogni connessione:
-
Posiziona la punta del saldatore sulla piazzola di saldatura.
-
Fai sciogliere abbastanza materiale da mantenere fermamente il cavo del contatto del condensatore al suo posto.
-
Rimuovi sia la saldatura in eccesso che la punta del saldatore dalla connessione, non appena avrai sciolto una quantità sufficiente della lega sulla piazzola.
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.
-
-
-
I cavi sono stati rimossi dalla piazzola di saldatura riscaldando la giuntura sulla parte superiore del circuito, estraendo i cavi con delle pinzette.
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.
-
-
-
Apri i fori delle piazzole di saldatura, premendo una graffetta raddrizzata contro il foro bloccato, riscaldandole dal lato opposto del circuito.
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.
-
-
-
Per saldare ogni connessione:
-
Posiziona la punta del saldatore contro la piazzola di saldatura.
-
Fondi abbastanza lega sulla piazzola di saldatura da mantenere fermamente i cavi dei contatti al loro posto.
-
Rimuovi sia la saldatura che la punta del saldatore dalla connessione non appena abbastanza lega si scioglie sulla piazzola.
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)
-
-
-
Per dissaldare la giuntura, posiziona la treccia sulla pallina da saldatura esistente e premi sul filo con il saldatore.
-
Una volta che la lega si scioglie e confluisce nella treccia dissaldante, rimuovila dalla giuntura.
-
Ripeti la stessa procedura sui cavi rimanenti.
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. 🔥
-
-
-
Per fondere una piccola pallina da saldatura sulla piazzola di saldatura:
-
Posiziona la punta del saldatore contro la piazzola di saldatura.
-
Fondi la lega, così che formi una cupola sulla piazzola.
-
Rimuovi sia la saldatura che il saldatore dalla piazzola, non appena una quantità sufficiente della lega si fonde su di essa.
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"
-
-
Better still, apply some flux and touch it with the soldering iron and it will then flow properly.
-
-
Per saldare i nuovi cavi sul circuito, posiziona l'estremità scoperta di un cavo sulla pallina di saldatura, sulla piazzola di saldatura corrispondente.
-
Premi la punta del saldatore sulla pallina, finché non si fonde.
-
Fai scorrere l'estremità esposta del circuito nella lega liquida, finché non è al centro della pallina, quindi, rimuovi il saldatore.
-
Prosegui con le altre connessioni allo stesso modo, prestando particolare attenzione a non saldare tra loro le due piazzole.
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……
-
Per riassemblare il tuo dispositivo, segui queste istruzioni in ordine inverso.
Per riassemblare il tuo dispositivo, segui queste istruzioni in ordine inverso.
Annulation : je n'ai pas terminé ce tutoriel.
432 autres ont terminé cette réparation.
Merci à ces traducteurs :
100%
Ces traducteurs nous aident réparer le monde ! Vous voulez contribuer ?
Commencez à traduire ›
36 commentaires
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 - Réponse
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 - Réponse
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 - Réponse
That is correct! I’ll adjust the introduction to clarify that.
Arthur Shi -