Wow! Thank you for post this movie. I made a lot of wire wrapping and electronic soldering for digital stuff up the middle of 1980s when (then rare) surface mounting boards were considered "unfixable"... I never more cared on that, so this video was a great surprise for me. Thank you to bring me up to XXI century!I
The grey paste is called solder paste and we are talking real solder paste not solder flux paste that is sometimes called solder paste. The difference is that real solder paste contains metallic powder in a flux compound while solder flux does not. Real solder paste should indicate the metallic compound such as silver, copper and other metals in their periodic label labels like Au, and others. The hot air gun is part of a 'reflow station'. granted, it is possible to use a hair dryer or heat gun but those have a much wider effect area due to the obviously bigger or wider 'nozzle'. In addition, if they are not temperature controlled, then you can face problems... especially heat guns without temperature control while a hair dryer would most likely not get as hot but might be hot enough for the solder paste to melt. Note: solder paste tends to melt at a little bit lower temperature than solder wire. This is why you don't need to get excessive with heat. Alternatives to using the hot air tool is to use a convection oven with temperature controls that you can set that would be under 300 degrees. Basically that is what the industrial equipment is known as a "reflow oven" which is basically a convection oven.Some are infrared or vapour phase ovens en.wikipedia.org/wiki/Reflow_oven Occassionally additional flux is used with solder paste. With reflow method, you don't need ultra steady hands just ensure you have solder connecting the pins of the components to the solder pads, via, etc. while assuring you correct any bridging of pins so that you don't create a short where you don't want it once you apply electricity to the circuit board. Lets keep in mind that we are looking as a really component with a high resolution camera zoomed into the component. Even what is a relatively stable hands can look like it is very shaky but lets remember that you are looking at something 10x10x10 (3d space) or 1000x magnification to the real scale so movements are exaggerated by 1000x. Try soldering with a camera in your way. It's not that simple.
Love hot air soldering, it's so interesting to watch the paste melt into shiny metal. Reflow ovens are also fun when the temperature finally hits the reflow temp and you hear that instantaneous crackle sound at the instant of reflow.
That is a pretty stellar job!! I also liked the heat shrink on the alligator clips (gotta start doing that). For a while, I thought you might accidentally re-flow the decoupling caps but it all turned out flawless.
sorry for the late response... the white pen is solder flux... (Stanol minifluxer 33) i removed the solder bridge simply by adding solderflux and contact a short time with the soldertip... (not shown in the video) i did the video only for testing and showing my 1st experiences with solderpaste...... i see that many people like this kind of videos so i plan to do more in the future but on the other side those many negative comments makes me sad and demotivated to show and do more stuff... and again.. this was my 1st experience with solderpaste normaly i use hotair for desoldering and for soldering i use a solderiron with special soldertip thanks for watching and understanding :-)
ramiretz Myself i have problem soldering a fuse on a Ps2 motherboard. They look like this: www.tt-store.com/images//PS2/SMD%20Fuse%20for%20PS2%20(10%20pcs%20pack).JPG But any fuse in that size would be good. :D If you have time
D3lt4forc3 aaah ok .... simply smd parts .... hmmmm i will see if i find some old smd part arround and i will do a video... vid with solder iron ? or with hotair ?
absolute best answers !!!! 1st i used it to practice !!!! 2nd this is a special IBM ram, wich u cant buy anymore 3rd i used the 852 reflow station ;) thank you !!
in my older posts i answered this question a few time ! warming and cooling down the chips and look at the memtest when it fails..... then u know wich one is defective
@@MrAjmal2010 If you click again in the thumbs down, the video will be un-disliked. Or, if you click the thumbs up button, your dislike will be convert to a like.
Loved your video, im just starting on SMD soldering and desoldering and found this very helpful.. The project im working on uses normal and SMD components... :)
for all who give negative feedback try to solder at least a 1206 or 805 smd resistor and come back to reply again, a easy hand shake magnified with the lens cam can be a huge movement, well ... so ramiretz its a good job mate , head up, leave your nails as you like because are a good tool and hope you are fine and make more vids
normaly i preheat the whole pcb with a special preheater to 150C before i use the hotair solder station ;) in this video i only showed how it work to solder with hotair.. nothing more.. its not a how to or step by step video... i move the hotair because when u stay steady at 1 place u burn the pcb and make also a hotspot wich is much more unsecure for the component...... i work for over 10 years now with hotair soldertools and thats just my experiences.... :) thanks for watching and comment.
When you wick off all the old solder, you're throwing away perfectly good solder that could have been used to tack your device down, greatly simplifying the job.
Not really. The old solder is lead-free and is harder to work with, requires higher temperatures and is more brittle too. Leaded solder requires lower temperatures and you do the work quicker than you would with the lead-free. You just need a quality leaded solder wire and all is good.
Buen video. Que bueno que eres electrónico y no médico cirujano, con ese terrible pulso que te cargas ya te hubieras cargado a varios pacientes con el bisturí jejejee. Saludos amigo :D
I seem to notice that most videos remove the existing solder from the pads on the boards. In my experience, I don't do this since I'm just going to add some back if needed and I think it is just an extra step that might ruin the PCB. I think it helps the chip lay flat and orient itself when initially soldering but I like to use a complete melt of the chip area so that the solder can "suck" the chip into position as it wets the leads.
Laying paste across the pads is actually common practice. Check out some of the SMD soldering tutorials from Pace for some good info. With enough flux (but not too much) to lower the solder's surface tension, bridging is not an issue. Also, if you don't use enough flux the excess can be easily wicked away. As I'm sure was done in this case because the end result was clean.
When reworking the PCB with the hot air station, I saw at least 3 solder bridges across pins. How did you remove them? Did you use a soldering iron? In that case, this video is incomplete.
I tried this stuff out for the first time yesterday. it took me a few attempts to get it right. what I will say watch the video. as I used to much paste and ended up with bridges. what I will say use the thinist nozzle your paste will go down from the syringe. and you will be fine
So the solder paste actually finds its way to the pads and chip legs? I always thought the paste had potential to short contacts out. This looks eay, maybe you can set the chips and bake the board to set the chips?
Ёпт удивил ))), в середине 2000 я эти модули памяти щёлкал как семечки. Без всяких приблуд из инструмента пинцет, паяльная станция, и програматор который был собран тоже на коленке.
Order some component stencils and apply the solder paste using those. You'll not need to hold the hot air gun on the part so long and you'll reduce the risk of overheating the part. Take a look at the heat profile for the part pay close attention to the overall dwell time.
Nice work...a little heavy on the paste but not bad. Should get a flat plastic knife to spread the paste more evenly. Works wonders. Also great for cleaning up those extra clumpy bits. Overall not bad tho. Those 0.8mm?
hello ramiretz... what did you use to clean up the remaining solders on board? i mean what's the type of that wire and is that a liquid flux pen? and what is the syringe type thing you applied at last?
Hello mate, I need to lift up one pin from an MCU circuit board! How do I do that? I need to solder it back after... reading it! Heat it up and then with something? Could you do a video for this please? I cant find any on YT! Thanks
Ramiretz: dónde puedo obtener todo eso para poder practicar esa soldadura, y que clase de líquido usas para soldar, el cobre que absorbe el estaño y con que lo calientas para no dañar la parte electrónica. :-)
Most of the times there aren't enough data address lines on the PCB for that kind of upgrade. Manufacturers need to save every single square millimetre they can, so any unneeded copper traces on the PCB are skipped. If you're lucky, you can upgrade to the maximum possible for the already existing address lines already there, but not anything over it.
Can you detail this process of identifying the bad chip or point me to some documentation about it? Nice work, I have lots of bad memory sticks but have never tried to repair one from the others because of not being able to know witch one(s) is/are the bad chip(s) on it...
Very nice job friend , Actually i had never seen all these products you are using , all i knew was the standard soldering lead & the blower/soldering iron - can you tell me the products you used - in-case if i want to order it online from somewhere ! , thanks
You should tack the opposite corners of the chip down by soldering before applying the paste. Stops the chip from moving while applying paste. Good work though.
why do you think that ??? i work over years with hotair soldering and none of the components ever died... important is the temperature on the pcb and component... 380degree hotair does not mean that the pcb or component get 380degree hot ! the solder melt at 180-200 degree
Thank you for no music!
😂😂😂😂😂
The solder gun was music to my ears.
Tittle of the song: My silent....😂🤣🎵🎶🎹🎺🎸🎤🎧
Sir you've restored my faith in hot air gun for smd resoldering. This is one of the cleanest jobs I've seen.
this dude sucked. I'm new and better than that
I like the heatshrink on the alligator clips.
Will copy immediately.
+Mick M I was thinking that too! ;-)
me too ;)
What was you using before? You can also put it on the moving parts of the helping hands and it helps hold the arms in place better
@HECTOR CONTRERAS l
have i ever said i am a professional ???
this was my first try with solder paste.....
i removed the bridges as you can see in the end...
Wow! Thank you for post this movie. I made a lot of wire wrapping and electronic soldering for digital stuff up the middle of 1980s when (then rare) surface mounting boards were considered "unfixable"... I never more cared on that, so this video was a great surprise for me. Thank you to bring me up to XXI century!I
Thank you for the nice comment :-)
The grey paste is called solder paste and we are talking real solder paste not solder flux paste that is sometimes called solder paste. The difference is that real solder paste contains metallic powder in a flux compound while solder flux does not. Real solder paste should indicate the metallic compound such as silver, copper and other metals in their periodic label labels like Au, and others.
The hot air gun is part of a 'reflow station'. granted, it is possible to use a hair dryer or heat gun but those have a much wider effect area due to the obviously bigger or wider 'nozzle'. In addition, if they are not temperature controlled, then you can face problems... especially heat guns without temperature control while a hair dryer would most likely not get as hot but might be hot enough for the solder paste to melt. Note: solder paste tends to melt at a little bit lower temperature than solder wire. This is why you don't need to get excessive with heat. Alternatives to using the hot air tool is to use a convection oven with temperature controls that you can set that would be under 300 degrees. Basically that is what the industrial equipment is known as a "reflow oven" which is basically a convection oven.Some are infrared or vapour phase ovens
en.wikipedia.org/wiki/Reflow_oven
Occassionally additional flux is used with solder paste. With reflow method, you don't need ultra steady hands just ensure you have solder connecting the pins of the components to the solder pads, via, etc. while assuring you correct any bridging of pins so that you don't create a short where you don't want it once you apply electricity to the circuit board. Lets keep in mind that we are looking as a really component with a high resolution camera zoomed into the component. Even what is a relatively stable hands can look like it is very shaky but lets remember that you are looking at something 10x10x10 (3d space) or 1000x magnification to the real scale so movements are exaggerated by 1000x. Try soldering with a camera in your way. It's not that simple.
rick balkins you're overthinking it. he did it well and it works. that's all that matters.
Hey Rick, can you share link to buy some of that real solder paste?? thanks
300 Fahrenheit, or Celsius?
Still trying to find who asked you
Calm down rick
Love hot air soldering, it's so interesting to watch the paste melt into shiny metal. Reflow ovens are also fun when the temperature finally hits the reflow temp and you hear that instantaneous crackle sound at the instant of reflow.
This is really a good job...it looks like its sometimes is better to do it with hot air than with soldering.
That is a pretty stellar job!! I also liked the heat shrink on the alligator clips (gotta start doing that). For a while, I thought you might accidentally re-flow the decoupling caps but it all turned out flawless.
I wish you mentioned HOW to safely discharge the capacitors. Not everyone knows how to do that safely. Otherwise good stuff!
oh yes you are right ! thank you for this hint...
You could teach that too just type it so we can learn usefull things
This comment section has me intrigued.
sorry for the late response...
the white pen is solder flux... (Stanol minifluxer 33)
i removed the solder bridge simply by adding solderflux and contact a short time with the soldertip... (not shown in the video)
i did the video only for testing and showing my 1st experiences with solderpaste......
i see that many people like this kind of videos so i plan to do more in the future
but on the other side those many negative comments makes me sad and demotivated to show and do more stuff...
and again.. this was my 1st experience with solderpaste
normaly i use hotair for desoldering and for soldering i use a solderiron with special soldertip
thanks for watching and understanding :-)
Could you please upload a video showing how to solder a 2,3 amps fuse? Or just any fuse to a motherboard. Thanks!
D3lt4forc3
wich type of fuse ?
ramiretz Myself i have problem soldering a fuse on a Ps2 motherboard. They look like this: www.tt-store.com/images//PS2/SMD%20Fuse%20for%20PS2%20(10%20pcs%20pack).JPG
But any fuse in that size would be good. :D If you have time
D3lt4forc3
aaah ok .... simply smd parts .... hmmmm
i will see if i find some old smd part arround and i will do a video...
vid with solder iron ? or with hotair ?
ramiretz Think you could do it? If you got time of course... Anyways thank you.
absolute best answers !!!!
1st i used it to practice !!!!
2nd this is a special IBM ram, wich u cant buy anymore
3rd i used the 852 reflow station ;)
thank you !!
in my older posts i answered this question a few time !
warming and cooling down the chips and look at the memtest when it fails..... then u know wich one is defective
Why so many dislikes? Great work!
Greetings from Germany.
Sometimes its accidentally pressed. Even I did it...
@@MrAjmal2010 You know you can un-dislike an acidental disliked video, don't you?
@@persona83 Lol..I didnt know they have dislike button over there ???
@@MrAjmal2010 If you click again in the thumbs down, the video will be un-disliked. Or, if you click the thumbs up button, your dislike will be convert to a like.
everyone knows that..some people dislikes your video. Maybe they accidentally did it
Вася по ходу чуток подвыпивший, но талант не пропьешь.
На хирурга точно не потянит
Главное знать, что резать и инструменты не оставлять?🤣👼
That is called precision Job . Well done man
many many thanks for your nice comment :-) it was my very first try with hotair and solderpaste
Thank you so much. The best video for soldering. So many questions have been answered with elegant precision.
thank you very much for those words :) very motivating
Wow impressive work. Surprised to see the paste turning into shiny tin-lead.
What kind of sorcerry is this?!
I could never have the patience for that, but very good jobs and looks awesome seeing it step by step.
Sir last me apane konsa solution paste use kiya tha
Loved your video, im just starting on SMD soldering and desoldering and found this very helpful.. The project im working on uses normal and SMD components... :)
looks good. im going to 2M school in a few weeks so have a lot of that to look forward to.
for all who give negative feedback try to solder at least a 1206 or 805 smd resistor and come back to reply again, a easy hand shake magnified with the lens cam can be a huge movement, well ... so ramiretz its a good job mate , head up, leave your nails as you like because are a good tool and hope you are fine and make more vids
hands like a surgeon. a surgeon going through withdrawal, that is.
normaly i preheat the whole pcb with a special preheater to 150C before i use the hotair solder station ;) in this video i only showed how it work to solder with hotair.. nothing more.. its not a how to or step by step video...
i move the hotair because when u stay steady at 1 place u burn the pcb and make also a hotspot wich is much more unsecure for the component......
i work for over 10 years now with hotair soldertools and thats just my experiences.... :)
thanks for watching and comment.
When you wick off all the old solder, you're throwing away perfectly good solder that could have been used to tack your device down, greatly simplifying the job.
Not really. The old solder is lead-free and is harder to work with, requires higher temperatures and is more brittle too. Leaded solder requires lower temperatures and you do the work quicker than you would with the lead-free. You just need a quality leaded solder wire and all is good.
Buen video.
Que bueno que eres electrónico y no médico cirujano, con ese terrible pulso que te cargas ya te hubieras cargado a varios pacientes con el bisturí jejejee. Saludos amigo :D
I seem to notice that most videos remove the existing solder from the pads on the boards. In my experience, I don't do this since I'm just going to add some back if needed and I think it is just an extra step that might ruin the PCB. I think it helps the chip lay flat and orient itself when initially soldering but I like to use a complete melt of the chip area so that the solder can "suck" the chip into position as it wets the leads.
You did well with that considering the amount of shaking going on with your hand
one of the most satisfying video ever
Super Video.Danke!
Nice soldering...!!!
yes, liquid flux, in a "flux pen" for ease of application, so may look unfamiliar
Laying paste across the pads is actually common practice. Check out some of the SMD soldering tutorials from Pace for some good info. With enough flux (but not too much) to lower the solder's surface tension, bridging is not an issue.
Also, if you don't use enough flux the excess can be easily wicked away. As I'm sure was done in this case because the end result was clean.
When reworking the PCB with the hot air station, I saw at least 3 solder bridges across pins. How did you remove them? Did you use a soldering iron? In that case, this video is incomplete.
Nice idea very helpful.
I liked your steady work. please, what is name of that thing u used to suck the RAM? I mean the RAM from the board?
that paste is like magic when heat up lol
normaly yes ! but i also tryed to reball them only with solderpaste and a big tip on the solderiron... worked also ;)
Very neat job I m impressed.
I tried this stuff out for the first time yesterday. it took me a few attempts to get it right. what I will say watch the video. as I used to much paste and ended up with bridges. what I will say use the thinist nozzle your paste will go down from the syringe. and you will be fine
on the video it was also my first attempt .....try a few times and u know how much paste u need ;-)
Must wear the ESD glove while handling the PCBA
So the solder paste actually finds its way to the pads and chip legs? I always thought the paste had potential to short contacts out. This looks eay, maybe you can set the chips and bake the board to set the chips?
Ёпт удивил ))), в середине 2000 я эти модули памяти щёлкал как семечки. Без всяких приблуд из инструмента пинцет, паяльная станция, и програматор который был собран тоже на коленке.
It's also a case of temperature tolerance, chips can take much higher temperatures when not operating.
btw, this is the first time i used solderpaste... so tryed it
How did you find which chip faulty
Order some component stencils and apply the solder paste using those. You'll not need to hold the hot air gun on the part so long and you'll reduce the risk of overheating the part. Take a look at the heat profile for the part pay close attention to the overall dwell time.
depends on the chipset.... if the chipset support more ram yes.... but u have to find also the right RAM chips for the upgrade....
Nice work...a little heavy on the paste but not bad. Should get a flat plastic knife to spread the paste more evenly. Works wonders. Also great for cleaning up those extra clumpy bits. Overall not bad tho. Those 0.8mm?
The hand vibration though😂
A Vodka is required !!!!
Como se llama la herramienta que usas para extraer el chip?
what temp and airflow? no one ever says that...
Did you desolder the chip and put the same chip back? Why? Did you test it to see if it works? Thanks
hello ramiretz... what did you use to clean up the remaining solders on board? i mean what's the type of that wire and is that a liquid flux pen? and what is the syringe type thing you applied at last?
Great Video! I am looking for the suction cup tool. Any advice where I can order?
For which purpose the white paste is needed, which you added just before soldering new chip?
Can you provide settings for the tip and hit air gun?
Hola, disculpa amigo, que camara de video utilizaste para el video? Gracias.
Wow - Solderpaste & a hot air soldering iron!!!
I now have the perfect way to upgrade my MacAir RAM.
Thanks for this brilliant video Ramiretz! :D
What is the min melt point of the solder paste?
What is the name of white paste that use to soldering
Amazing work! I gotta get me a rework station now to fix my JVC XEye, quick question, what do you call that chip lifter tool you used? It's awesome!
Your whole video series is great and informative. Great work. I wish, I must be smart enough like you and upload videos like you to my channel!
There are faster ways for doing this, but it is a nice process regardless. Good video.
What is Marker brand name ?...I like this black and White...like a Jing-Jang. Get it ?
@ramiretz You could also show the final result, that it works...
The result was uploaded here : ruclips.net/video/Z7QMFORrNus/видео.html
@@ramiretz Oh, ok...
после похмелья руки дрожат
do it better if u can and show us . . .
ramiretz
Не обижайтесь, все у вас хорошо получилось!
MrVvmel Пожалуйста если можешь прокоментируй процесс, название и смысл материалов !
Андрей Некрасов, не понял вопроса.
я хочу понять как он это сделал. какими материалами ... мне нужно научиться так же делать ...
When I use paste, paste melt, but not move automatically to pad and pin. Do you know why. Thanks.
What's that chip suction cup tool called that comes into play at 0:25s ?
NIce vid! What is that "white pen" tool you used @1:10 and what brand of grey soldering paste you use? Thanks.
Как называется приспособление, которым от прицепил микросхему?
good job
tks
Ja przed pracą zawsze walnę setkę wódki to mi się ręce już tak nie trzęsą.
Good video but I would've preferred to see the complete job including how you sorted out the multiple bridges instead of jumping to the end.
Hello mate, I need to lift up one pin from an MCU circuit board!
How do I do that?
I need to solder it back after... reading it!
Heat it up and then with something?
Could you do a video for this please?
I cant find any on YT!
Thanks
What kind of sorcery is this?
It's called soldering.
I think the hot-air solder is too hot for that chip. Or I am wrong?
Ramiretz: dónde puedo obtener todo eso para poder practicar esa soldadura, y que clase de líquido usas para soldar, el cobre que absorbe el estaño y con que lo calientas para no dañar la parte electrónica. :-)
Can you please give the details of the tools, I really liked the tool that you used to lift and drop the chip.
its an old AOYUE-939 vacuum tool ->
ruclips.net/video/fEVIuOZ7VMU/видео.html
Most of the times there aren't enough data address lines on the PCB for that kind of upgrade. Manufacturers need to save every single square millimetre they can, so any unneeded copper traces on the PCB are skipped.
If you're lucky, you can upgrade to the maximum possible for the already existing address lines already there, but not anything over it.
Alguien podría decirme cómo se llama el marcador, y el aparato que usa para quitar las soldadura, y y el que usa para quitar los chip
Xin cảm ơn da chia sẻ
what temperature desldering?
320
Hi there can you please tell me what did you use exactly the tolls,paste etc.. the gun not need i have one too. thank you waiting for your reply
Can you detail this process of identifying the bad chip or point me to some documentation about it?
Nice work, I have lots of bad memory sticks but have never tried to repair one from the others because of not being able to know witch one(s) is/are the bad chip(s) on it...
Very nice job friend , Actually i had never seen all these products you are using , all i knew was the standard soldering lead & the blower/soldering iron - can you tell me the products you used - in-case if i want to order it online from somewhere ! , thanks
Hola, una pregunta que utilizas para soldar el integrado a la pcb??? gracias.
PD. flux¿¿ o pasta de soldar¿¿¿
what form of wizardry is that grey stuff anyway?
Is that heat shrink tube on your alligator clips?
what is the commercial name of the gel applied between chip & board?
What's the name of the thing you use to grab the chip?
thanks, do the cheap hot air guns work ok? ie the chinese ones on ebay?
Hands of an electronics expert. How about 240 pins!?
Nice video which temp. are u using and which solder paste are u using?
You should tack the opposite corners of the chip down by soldering before applying the paste. Stops the chip from moving while applying paste. Good work though.
Correct me if im wrong but im pretty sure i seen a soldering iron being used 🤷♂️
why do you think that ???
i work over years with hotair soldering and none of the components ever died...
important is the temperature on the pcb and component...
380degree hotair does not mean that the pcb or component get 380degree hot !
the solder melt at 180-200 degree
it is chemistry + heat nice video