Tutorial of Reballing by Jovy Re7500

[Raheeeeb]

All about re-balling you can found in this link (http://www.raheeeeb.cellphonerepair.us/Reballing_/)


Also if you need any special Re ball process just post here

[LegalEagal]

Hade a look at reballing videos where exellent, Thanks. But I have used magnets simlar in video but they tend to demagnetize due to heat. I have hade to modify my methode with using clamps instead. Will upload pic to illustrate what i mean when i get back to uk in begining of july. I can not express enough the gratitude for the time and trouble you took to make these videos. This has saved me hours of reading books and lives of mobiles and laptop motherboards. I think many think the same in the forum. I have found for the lead free paste I need to go up to 240 C.

[Raheeeeb]

I have found for the lead free paste I need to go up to 240 C.

You are right but sometimes i use nice trick and replace the lead free balls with leaded by using no clean sn64 solder paste .

Br .

Raheeeeb

[Raheeeeb]

Any feed back of re ball process from any friend

BR
Raheeeeb

[jaisairam]

All about re-balling you can found in this link (http://www.raheeeeb.cellphonerepair.us/Reballing_/)


Also if you need any special Re ball process just post here

where to buy jovy re 7500 and for how much

[Raheeeeb]

where to buy jovy re 7500 and for how much

For any special application or support just any member is welcome to post here.

For Machine price (or where to buy ? ), also the other Jovy products Please you can send your requests to INFO@jovy-systems.com .


BR///

Raheeeeb

[MISTER_CHIP]

For any special application or support just any member is welcome to post here.

For Machine price (or where to buy ? ), also the other Jovy products Please you can send your requests to INFO@jovy-systems.com .


BR///

Raheeeeb

Dear friends:

I write from Spain. Four days ago I received the JOVY of Jovy RE-7500 Systems. The machine is not working properly and the manufacturer or commercial http://www.jovy-systems.com/Spanish/Reballing_de_circuitos_BGA.asp I sold it no longer my messages.

In summary: Do not let yourselves be fooled by RAHEEEB. DO NOT BUY A FACTORY (Hong Kong). BUY AT DEALER WARRANTY THAT OS.

I am sorry my writing, my English level is very low, so I speak through a translator from Google.

JOVY SYS AND RE-7500 is a delusion!

Greetings from Spain

__________________________________________________ ________________________________

Queridos amigos:

Os escribo desde España. Hace cuatro días que recibí la JOVY RE-7500 de Jovy Systems. La máquina no funciona correctamente y en el fabricante http://www.jovy-systems.com/Spanish/Reballing_de_circuitos_BGA.asp ni en el comercial que me la vendió no responden ya mis mensajes.

En resumen: NO OS DEJEIS ENGAÑAR POR RAHEEEB. NO COMPRAR A FÁBRICA (HONG-KONG). COMPRAR EN UN DISTRIBUIDOR QUE OS DE GARANTÍAS.

Lamento mi escritura, mi nivel de ingles es muy bajo, así que os hablo mediante un traductor de Google.

JOVY SYS Y SU RE-7500 ES UN ENGAÑO !!!

Saludos desde España

[MISTER_CHIP]

I just talk to the technical support JOVY by mesenger. Has taught me that I was wrong and that the machine works fine (but does not read correctly the temperature).

They undertake to give me support mesenger to resolve all my doubts.

I can not delete my previous message. So I write this message to say that everything ok

Best Regards from Spain

PS: This text is translated by google traslator

[MISTER_CHIP]

Hello friends!

By continuing to talk with mesenger engineer Jovy. Let's see if between me and we make a profile that works properly.

This is the best graphics I've been able to achieve so far.

http://img301.imageshack.us/img301/7164/dibujotrail.png


In this plot can be viewed as the lower heater is slow to heat up.

I hope to identify news JOVY this problem with the RE-7500 JOVY SYSTEMS.

__________________________________________________ _______

Hola amigos!

Continuo al habla por mesenger con el ingeniero de Jovy. A ver si entre el y yo logramos hacer un perfil que funcione correctamente.

Esta el la gráfica mejor que he podido conseguir hasta ahora.

http://img301.imageshack.us/img301/7164/dibujotrail.png

En esta gráfica se puede ver como el calentador inferior es lento al calentar.

Espero noticias de JOVY para determinar este problema con la RE-7500 de JOVY SYSTEMS.

Saludos cordiales desde España.

Best regards from Spain.

Pd: a mi juicio la RE-7500 no funciona bien mientras no me demuestren lo contrario.

[Trion]

@MISTER CHIP,

Where are you placing the temperature probe? To get better results, Raheeeeb suggests to bend the last 5mm or so of the probe in such a way that 3mm should touch the PCB. The way Jovy shows the probe, only the tip makes contact with the PCB. If the probe is bent into a different shape so that instead of only the tip touching, a longer piece around 3mm or so touches the PCB, you will get more accurate temperature readings.

Maybe Raheeeeb would be gracious enough to post a picture of this for us.

The probe has to be very close to the IC you are heating for best results.

By the way you have wrongly accused Raheeeeb of wrong doing and I feel you should apologize. As far as i know he's not working for Jovy. He only helps us with tips on how to use it from his personal experience. He's a veteran on the GSM forum for years and has been helping people in reworking from the time there were only hot air machines used by the average technician. Now that most know how to use hot air, he spends more time on sharing info on using infra-red.

B.R.

[MISTER_CHIP]

@MISTER CHIP,

Where are you placing the temperature probe? To get better results, Raheeeeb suggests to bend the last 5mm or so of the probe in such a way that 3mm should touch the PCB. The way Jovy shows the probe, only the tip makes contact with the PCB. If the probe is bent into a different shape so that instead of only the tip touching, a longer piece around 3mm or so touches the PCB, you will get more accurate temperature readings.

Maybe Raheeeeb would be gracious enough to post a picture of this for us.

The probe has to be very close to the IC you are heating for best results.

By the way you have wrongly accused Raheeeeb of wrong doing and I feel you should apologize. As far as i know he's not working for Jovy. He only helps us with tips on how to use it from his personal experience. He's a veteran on the GSM forum for years and has been helping people in reworking from the time there were only hot air machines used by the average technician. Now that most know how to use hot air, he spends more time on sharing info on using infra-red.

B.R.

This is the picture you sent me the engineer to bend the tip of the termocouple:

http://img79.imageshack.us/img79/7897/bendtiplength.jpg

The T / C always installed together with BGA IC.

I am sorry to have accused Raheeeeb, but to me it is rare that lives in the same city where it manufactures the RE-7500 SYSTEMS JOVY and defends this machine.

My apologies to Raheeeeb if not working for JOVY SYSTEMS.

The truth is that my RE-7500 does not work for me with the profiles, as seen in the graph above.

Now I am waiting JOVY support through MSM and I hope I can get to solve this problem on the slow and slowly heating the inlet end of this machine.

When I succeed I will either adjust the profiles of the machine ... Meanwhile I stand except

Best regards.

PD: Translated with Google's online translator.

[Raheeeeb]

@MISTER_CHIP
I think all your problem is you are not Patient , as i know Jovy direct support takes 1 or 2 weeks to Finnish the direct guidance to their customers , for me i spent 4 weeks to understand the machine , it is completely different method between the regular hot air or light IR machines and the Dark IR one .Regardless so many factors

I advise you to spent much time in understanding the heating power ramp up in temperature and time elapsed.

Sorry , i was busy to answer earlier but i promise to pay extra attention and time ( not guaranteed) :0)


BR//

Raheeeeb

[MISTER_CHIP]

Reheeeeb Thanks for your reply. Sorry but I still think that since you live in the same city where it manufactures the RE-7500, you're a worker Jovy Systems (discupes pray my distrust)

I can run continuously without the temperature ramp and time correctly.

Along with the machine I asked balls of tin and lead of 0.6 and 0.4 (on the recommendation of JOVY), but these balls have not been manufactured or have an expiration date. And we all know that the balls Esphera have a short life of one year.

I also asked two syringes Flux, but arrived without needle and the plunger.

I tried reballing in GPU XBOX 360, but when the flux begins to melt, the ball begins to move alone, so I can not finish the process as seen in this video.

http://www.youtube.com/watch?v=QW5i2PVIQro&feature=channel

Best Regards.

(translated from Spanish to English with google translator. Sorry if it is not well understood)

I do not get e-mail response when someone writes in this thread. I wonder the reason for this, because I'm registered in this forum.

[Deusjevoo]

Have ths same problem.
The machine doesn't follow the profile settings.

Gonna try with a bent probe like the pic above.
Hope it'll help.
But how to put it on a small bga then?

For support, I asked Jovy simply for a new login a few times, via the webpage, never even had an answer.

Regards.

[Deusjevoo]

Have ths same problem.
The machine doesn't follow the profile settings.
Gonna try with a bent probe like the pic above.
Hope it'll help.
But how to put it on a small bga then???

What I allso mis is a more explaining manual or reference for the RE-7500.
Where we can find things like which settings to use for leaded or lead-free.
What does preheat, reflow, fast reflow do exactly?
Probably less wattage, but how does that reflect to temperature/time?
Is the machine really temperature controlled?
Like sometimes I hear a fan, inside the machine I think, but that is
only to cool down the machines internals, not to keep the temperature
of the pcb on a set value I suppose?

When and how to use kapton or reflective aluminium tape?
(Ok, that is more logically).
Does kapton tape protect against heat to?
I mean, does it "filter" the infra radiaton?
Or do the components and/or PCB heat up normally and the kapton tape
keeps everythin in place?
Does kapton prevent plastics to melt?

Still could not get an xbox 360 reflowed successfully with the jovy.
A cheap hot air system seems to do that a lot better.
Also, reballing, it looks simple on the videos.
But if you put the balls in the stencils and take that off, the balls move.
Some stick on the stencill, have to put them back manually.
Any suggestions?
Can't get them lined up easily anymore.
Tried to solder in the bga holder, didn't work either. To much reflection?
Don't h ave hot air jet, but think of getting one.
Maybe that works better to solder the balls while in the stencil.

I know there is a lot of info to find in the videos.
Allready learnt a lot of them and progressing myself.
I really thank Raheeb for all his info, videos and support inhere.
He is The JOVY MAN :-).

For support, I asked Jovy simply for a new login a few times, via the webpage, never even had an answer.
So I can't access the site anymore.
Also, when I still could login, there where lots of links not working.
Som manuals, some videos.
Hope I didn't miss out on to many info.

Phew, this post became much longer then intended first.
Just wrote down all the things I thought of while writing.
Hope someone at jovy (or maybe one of those nice helpfull guys inhere) picks it up and do something with it.
Like makeing a working xbox 360 reflow profile (while leving the chips on the pcb) made by jovy or another specialist would be great.
Hopefully I'll get there, but at the cost of how many ruined 360s ?

Regards.

[Raheeeeb]

@Deusjevoo
Thank you for posting , i recommend you to copy and paste this inquiries and to send to Jovy after sales service , here you might wait till some one have a free time to help you , but as a RE7500 owner you have the right to get all your questions answered :)

Best regards

Raheeeeb

[Raheeeeb]

@MISTER_CHIP

i will try help in the reballing steps specially for the GPU and the big Paackages for PC, Laptop and other game consoles i just make some support documents for this :)

Keep cool

Best regards

Raheeeeb

[Deusjevoo]

@Deusjevoo
Thank you for posting , i recommend you to copy and paste this inquiries and to send to Jovy after sales service , here you might wait till some one have a free time to help you , but as a RE7500 owner you have the right to get all your questions answered :)

Best regards

Raheeeeb

Thanks, will do that.
But I don't have a direct e-mail adress, allways use the web form.
Can you give me one please?
Also, I bought the system 2nd hand.
Hope that won't be problem?

Regards,

[MISTER_CHIP]

Have ths same problem.
The machine doesn't follow the profile settings.
Gonna try with a bent probe like the pic above.
Hope it'll help.
But how to put it on a small bga then???

What I allso mis is a more explaining manual or reference for the RE-7500.
Where we can find things like which settings to use for leaded or lead-free.
What does preheat, reflow, fast reflow do exactly?
Probably less wattage, but how does that reflect to temperature/time?
Is the machine really temperature controlled?
Like sometimes I hear a fan, inside the machine I think, but that is
only to cool down the machines internals, not to keep the temperature
of the pcb on a set value I suppose?

When and how to use kapton or reflective aluminium tape?
(Ok, that is more logically).
Does kapton tape protect against heat to?
I mean, does it "filter" the infra radiaton?
Or do the components and/or PCB heat up normally and the kapton tape
keeps everythin in place?
Does kapton prevent plastics to melt?

Still could not get an xbox 360 reflowed successfully with the jovy.
A cheap hot air system seems to do that a lot better.
Also, reballing, it looks simple on the videos.
But if you put the balls in the stencils and take that off, the balls move.
Some stick on the stencill, have to put them back manually.
Any suggestions?
Can't get them lined up easily anymore.
Tried to solder in the bga holder, didn't work either. To much reflection?
Don't h ave hot air jet, but think of getting one.
Maybe that works better to solder the balls while in the stencil.

I know there is a lot of info to find in the videos.
Allready learnt a lot of them and progressing myself.
I really thank Raheeb for all his info, videos and support inhere.
He is The JOVY MAN :-).

For support, I asked Jovy simply for a new login a few times, via the webpage, never even had an answer.
So I can't access the site anymore.
Also, when I still could login, there where lots of links not working.
Som manuals, some videos.
Hope I didn't miss out on to many info.

Phew, this post became much longer then intended first.
Just wrote down all the things I thought of while writing.
Hope someone at jovy (or maybe one of those nice helpfull guys inhere) picks it up and do something with it.
Like makeing a working xbox 360 reflow profile (while leving the chips on the pcb) made by jovy or another specialist would be great.
Hopefully I'll get there, but at the cost of how many ruined 360s ?

Regards.

My friend, I think RAheeeeb can help you because I suspect that works for JOVY.

Here photographs of my machine.

http://img193.imageshack.us/img193/7510/jovyre7500.jpg

Here is a chart that can not adjust to the RE-7500.

http://img193.imageshack.us/img193/7279/dctxicsfernando.png

I have support mesenger, but the language is English and I am Spanish and I do not understand very well. Yesterday I received three profiles for XBOX JOVY via media mail, but do not work.

I'm not happy with the purchase of the RE-7500 of JOVY Jovi Systems.

Here I leave you four new videos JOVY:

In the next post


Best Regards.

(This text is translated from Spanish traslator by google)

[MISTER_CHIP]

http://www.youtube.com/watch?v=UblzwdUAN64&feature=channel

http://www.youtube.com/watch?v=83ae7CEdvRY&feature=channel

http://www.youtube.com/watch?v=xF2AuHKmeWo&feature=channel

http://www.youtube.com/watch?v=QW5i2PVIQro&feature=channel

http://www.elotrolado.net/hilo_ya-me-ha-llegado-mi-maquina-de-reballing_1240294

Best Regards

[MISTER_CHIP]

Tonight I have spent many hours trying to run the Reballing Kit Jovy ... and I have concluded that the Reballing kit JOVY is fake.

I tried Reballing Kit SYSTEMS JOVY the GPU of the Xbox 360. In the video can be viewed as JOVY remove the top cover (where it is the stencil) and the BGA is left at the bottom of REballing Kit .. Well, I've tried and this is fake: When I lift the lid seals stencil, the BGA stencil stays stuck to the solder paste.

The JOVY have fooled me ... This Kit Reballing reached me with the request of the RE-7500 and has cost me € 180. This is a scam and a hoax.

Did not buy the REBALLING KIT SYSTEMS JOVY ... IS FALSE / FAKE AND DOES NOT WORK.

I will hang on the Internet forums a tutorial with pictures for everyone to see that the reballing kit Jovy not working ... You can see at a glance here.


Now Raheeeeb friend tell a lie I tell you here and also tell me if I am right in using the REballing Kit Jovy or not.


Regards.

(Translated from Spanish with the help of google traslator)

[Trion]

@ MISTER CHIP,

from the picture u showed of ur machine, the T/C probe is not bent into d right shape. Also i want to ask, do u have experience of reballing with hot air? You might be making minor mistakes. Stop accusing people just because you can't get the process to work right. There are well over a 70 or so people on this site who use this machine and nobody is behaving the way you do. You need patience to learn to use the machine properly. Once you learn, its a great money maker if used properly.

Why don't you make a video of wht u r doing? Show us how u place the probe, show us the height of d heater, whts showin on d screen, etc.

Also i need to tell u that u need to learn to use the machine without profiles as in manual control. mastering this is the best way. As sometimes profiles may not be accurate due to room temperatures, breeze from an airconditioner, fan, etc. Lets see wht ur doin n wht results ur gettin n maybe we can help u.

BR

[Deusjevoo]

For the reballing, had the same problem as Mr Chip.
It is indeed not as easy as on the video.
Ruined 3 xbox 360 BGA allready.
Bad quality of chip, easily popcorn effect.
But I've done some experimenting with it.
What I did was choosing another of the sliders corner, the one that is 0,50mm deep and put 2 washers (3mm) under the screws you secure the stencil with.
Now the distance between the BGA and the stencil should be a bit higher.
Result: it doesn't contact with the flux and the balls fall more deeper into the holes but are still kept in place by the stencil.
Stencil may not be higher or balls fall completely under it and they can move.
Poor in the balls and make sure every hole is filled.
Then I use a smal cut plastic to rub over it (with my finger on the plastic, not as a squeegee) to be sure all the balls are pressed down.
If I take off the stencil now they don't stick on it anymore.
BUT....
Some still move and give short.
That is practice I think, and you will have to check and andjust the balls with tweezers or somehing else.
Or could it be the flux?
I use Qualitek. Or is there flux more suitable for reballing?
Is the jovy flux something special?
Does someone know what the guy in this movie is using:
http://www.youtube.com/watch?v=97nxZwHG5bA
Flux? Which type/brand? Or some solder grease?
It seems to keep the balls more in place.
And the product he uses to clean the BGA?
I use fluxcleaner and Isopropyl.
Tip: use a tootbrush to clean the BGA and PCB.

All comments welcome.

Greetings.

[MISTER_CHIP]

@ MISTER CHIP,

from the picture u showed of ur machine, the T/C probe is not bent into d right shape. Also i want to ask, do u have experience of reballing with hot air? You might be making minor mistakes. Stop accusing people just because you can't get the process to work right. There are well over a 70 or so people on this site who use this machine and nobody is behaving the way you do. You need patience to learn to use the machine properly. Once you learn, its a great money maker if used properly.

Why don't you make a video of wht u r doing? Show us how u place the probe, show us the height of d heater, whts showin on d screen, etc.

Also i need to tell u that u need to learn to use the machine without profiles as in manual control. mastering this is the best way. As sometimes profiles may not be accurate due to room temperatures, breeze from an airconditioner, fan, etc. Lets see wht ur doin n wht results ur gettin n maybe we can help u.

BR

@ Trion

This photo is from the machine and unpacked newcomer. I had not even doubled the T / C for the tip.

I answer your question: I use hot air since 1998, but I have no experience with Reballing BGA.


I still think that this machine is not worth the 1630 € + 320.20 € (expenses of office) that I paid for it. I think it's a cheap machine manufactured home without quality control. In my view, this machine should only cost € 600.

On the other hand, I have had over 24 hours trying to run the Reballing Kit JOVY. I have concluded that it is a FAKE:

- The Reballing Kit BGA JOVY No subject in the center, it is impossible ... Always moves the BGA. The four fixations of no fixed BGA BGA never focused.

- After I dump the ball on the stencil, The stencil will be stuck next to the BGA . There is no proper separation between the stencil and the BGA.

In summary, it is a FAKE that has cost me € 180 + cost of office and only serves as a weight so as not to fly the papers off the table.

I tried another machine IR-7500 JOVY and Reballing kit manufacturer ... As the machine is behaving just as bad to mine ... But my friend Kit Reballing if you work with me.

I pulled my money!

Best Regards.

(tralated from spanish with the google´s tralator help)

[MISTER_CHIP]

Reballing kit by jovy systems is fake. Don´t buy it

el kit de reballing de jovy systems es falso. No lo compres.

Best regards.

[Trion]

@MISTER CHIP,

You are only sounding like a broken record. I asked you to post pics or videos of how YOU are doing the work with the machine, yet you haven't bothered. I and others on this forum could help you correct what you are doing wrong. Please don't be stubborn and say everything done by you is right. Lets see if there is some small thing you are overlooking.

Compared to another IR rework machine on the market that is cheaper, this is a far better machine with computer interface, and Quality parts. I have opened my machine and verified that the parts used are quality parts. And in my experience if one uses the contact form on the Jovy site, one gets a reply. They have helped me with my problems promptly.

As for the problem with the reballing kit, the reason the balls are falling off with you might be the flux. What flux did you use?

B.R.

[Deusjevoo]

@MISTER CHIP,

You are only sounding like a broken record. I asked you to post pics or videos of how YOU are doing the work with the machine, yet you haven't bothered. I and others on this forum could help you correct what you are doing wrong. Please don't be stubborn and say everything done by you is right. Lets see if there is some small thing you are overlooking.

Compared to another IR rework machine on the market that is cheaper, this is a far better machine with computer interface, and Quality parts. I have opened my machine and verified that the parts used are quality parts. And in my experience if one uses the contact form on the Jovy site, one gets a reply. They have helped me with my problems promptly.

As for the problem with the reballing kit, the reason the balls are falling off with you might be the flux. What flux did you use?

B.R.

Correct.
Like I said in a previous post, I had/have problems with the reballing kit to.
But instead of moaning about it, I experiment.
I have an Xbox 360 GPU BGA with new balls in front of me now that looks just like new.
Only 1 missing pad due the experimenting with it.
So, it won't be usable again but it probably got me closer to successful reballing after some more experimenting.
And 1 problem with me was, I think, indeed the flux.
Also the distance of the stencil from the chip.
I solved it whit using another side of those sliders and put some washers under the top piece so it comes higher.
Works perfectly now!

Do need to buy other flux for it.
Any suggestions which is best?

About the RE-7500, that takes lots of experimenting to.
But I'm getting some better results now.
However, I do think that jovy gives not enough info on how the machine works
Like which settings to use for different types of work.

About support.
I never got an answer on any of my mails !!!
still can't login on the jovy site anymore !!!
How hard can it be to setup a user account and pasword?

Regards.

[MISTER_CHIP]

@MISTER CHIP,

You are only sounding like a broken record. I asked you to post pics or videos of how YOU are doing the work with the machine, yet you haven't bothered. I and others on this forum could help you correct what you are doing wrong. Please don't be stubborn and say everything done by you is right. Lets see if there is some small thing you are overlooking.

Compared to another IR rework machine on the market that is cheaper, this is a far better machine with computer interface, and Quality parts. I have opened my machine and verified that the parts used are quality parts. And in my experience if one uses the contact form on the Jovy site, one gets a reply. They have helped me with my problems promptly.

As for the problem with the reballing kit, the reason the balls are falling off with you might be the flux. What flux did you use?

B.R.

I got all products by JOVY SYSTEMS and I can say all is fake and very very expensive.

Reballing Kit by jovy (180€+ shipping + office) DO NOT WORK. ITS FALSE. DO NOT BUY IT.

NEVER BUY DIRECTLY TO CHINA.

Best regards.

[MISTER_CHIP]

@ Deusjevoo:

Please can you explain where you put the washers? If you can, make a picture. Thank you.

I apologize to everyone because I sound like a broken record. It is a great anger that I have with Jovy Systems ... but I also know that you've got not only because of this, but they're also for helping me.

Try to translate best to answer your messages and get ready to leave for you help.

my level of English is unfortunate because I am using google traslator ... I hope you understand me a little.

best regards

[pentu]

Hi
I am from india, i do Laptop motherboards repairs, recently i have ordered jovy RE-7500 machine, expecting the shipment any time. i was going through the comments of the net, i came across 'MISTER CHIP' comments & i am really worried about choice of jovy RE-7500 (already purchased). any user who is having jovy machine please give me update on the machine performance.
Thanks
venkat

[pentu]

Hi
I am from india, i do Laptop motherboards repairs, recently i have ordered jovy RE-7500 machine, expecting the shipment any time. i was going through the comments of the net, i came across 'MISTER CHIP' comments & i am really worried about choice of jovy RE-7500 (already purchased). any user who is having jovy machine please give me update on the machine performance.
Thanks
venkat

[pentu]

Hi
I am from india, i do Laptop motherboards repairs, recently i have ordered jovy RE-7500 machine, expecting the shipment any time. i was going through the comments of the net, i came across 'MISTER CHIP' comments & i am really worried about choice of jovy RE-7500 (already purchased). any user who is having jovy machine please give me update on the machine performance.
Thanks
venkat

[MISTER_CHIP]

Dear pentu, send to me a private for give to you my skype.

Best regards.

[linears4]

reballing bga chips need high skills, this is the reasons why you can't have optimal results, you need to try, and try.
i don't know how the jovy reballing tool is, but i don't think is much different from the various reballing tool you can find on the net, maybe except for the quality of construction. I' use a crappy reballing station from cina, and i never have a problem, even with large chips.

my reballing tool is like this :
http://cgi.ebay.it/BGA-Reballing-rework-Station-3pcs-stencils-solder-ball_W0QQcmdZViewItemQQ_trksidZp3286Q2ec0Q2em14QQh ashZitem27a94620feQQitemZ170343670014QQptZLHQ5fDef aultDomainQ5f0QQsalenotsupported

to avoid the chip to get stick to the stencil you have lo lock the bga with the four clamps on the lower part of the tool, then you have to aligne the stencil to the bga chip pattern , only after this you have to clamp the stencil to the upper part thigtening the four screws.

if you experince ball floating after removing the upper stencil the cause is the flux, must to be used special flux for reballing, these fluxes are very sticky and let the ball weel angaged to the chip, even if you **** on top of the chip with hot air ! very important is the quantity of flux too... if you use too much, flux will melt with heat causing ball floating during the process, if you use very little o poor ,ball will not stick properly to the chip causing floating durin the removing of the stencil.

[Raheeeeb]

Hi ppl ,

Sorry , being away for a couple of month feel free to send any comment here i will try my best helping you

BR..

Raheeeeb

Hi
I am from india, i do Laptop motherboards repairs, recently i have ordered jovy RE-7500 machine, expecting the shipment any time. i was going through the comments of the net, i came across 'MISTER CHIP' comments & i am really worried about choice of jovy RE-7500 (already purchased). any user who is having jovy machine please give me update on the machine performance.
Thanks
venkat

[galo911]

Hi guys.

I am new to the forum, just want to introduce myself real quick. My name is Marcelo, based in California, also have a repair shop in Brazil, i just bought from AV Repair a Jovy 7500 (will receive it later on this week) and reading this thread and being new to this (IR Re-balling/re-flowing) hope to count on you all with some tips and advices. Mainly my work is on HP laptops and video games Xbox 360 and PS3. Like, for instance, the temperature sensor advice (will bend mine for sure...), but i am not sure now, after reading the thread and some of the postings, what to expect from the pre-loaded profiles and i just noticed that the Jovy website is redirecting the link where i thought we were supposed to check for profiles back to the main page. I am not sure what i will receive with the machine (I haven't inquired AV about this yet, will wait for the machine to arrive), but I am really happy so far with the treatment provided by the Distributor (AV Florida - Cameron Boyd), answered all my questions, in a timely manner. Thank you all in advance and a great day for everybody. :)