Tutorial of Reballing by Jovy Re7500 - GSM-Forum

Raheeeeb · 06-21-2007, 15:48

All about re-balling you can found in this link

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

LegalEagal · 07-21-2007, 21:45

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 · 07-23-2007, 03:59

Quote:

Originally Posted by LegalEagal

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 · 09-15-2007, 20:30

Any feed back of re ball process from any friend

BR
Raheeeeb

jaisairam · 02-25-2008, 11:30

Quote:

Originally Posted by Raheeeeb

All about re-balling you can found in this link

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

where to buy jovy re 7500 and for how much

Raheeeeb · 02-25-2008, 12:30

Quote:

Originally Posted by jaisairam

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 [email protected] .

BR///

Raheeeeb

MISTER_CHIP · 05-29-2009, 13:21

Quote:

Originally Posted by Raheeeeb

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 [email protected] .

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/...cuitos_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/...cuitos_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 · 05-30-2009, 23:55

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 · 06-02-2009, 13:50

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.

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.

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 · 06-02-2009, 22:49

@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 · 06-03-2009, 09:00

Quote:

Originally Posted by 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.

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

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 · 06-04-2009, 04:43

@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 · 06-04-2009, 09:14

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=QW5i2...eature=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 · 06-06-2009, 10:14

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 · 06-06-2009, 11:36

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.

06-21-2007, 15:48	#1 (permalink)
Raheeeeb No Life Poster Join Date: Oct 2001 Location: -------- Age: 55 Posts: 1,009 Member: 7062 Status: Offline Thanks Meter: 126	Tutorial of Reballing by Jovy Re7500 All about re-balling you can found in this link Also if you need any special Re ball process just post here Last edited by Raheeeeb; 06-21-2007 at 16:26.

06-02-2009, 13:50	#9 (permalink)
MISTER_CHIP Junior Member Join Date: May 2009 Location: Spain Posts: 25 Member: 1041552 Status: Offline Thanks Meter: 3	Jovy re-7500 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. 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. 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.

06-04-2009, 09:14	#13 (permalink)
MISTER_CHIP Junior Member Join Date: May 2009 Location: Spain Posts: 25 Member: 1041552 Status: Offline Thanks Meter: 3	Jovy re-7500 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=QW5i2...eature=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.

06-06-2009, 11:36	#15 (permalink)
Deusjevoo Insane Poster Join Date: Sep 2008 Posts: 63 Member: 869567 Status: Offline Thanks Meter: 3	My Jovy.... 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.

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07-21-2007, 21:45	#2 (permalink)
LegalEagal Major Poster Join Date: May 2007 Posts: 42 Member: 516941 Status: Offline Thanks Meter: 0	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.

09-15-2007, 20:30	#4 (permalink)
Raheeeeb No Life Poster Join Date: Oct 2001 Location: -------- Age: 55 Posts: 1,009 Member: 7062 Status: Offline Thanks Meter: 126	Any feed back of re ball process from any friend BR Raheeeeb

05-30-2009, 23:55	#8 (permalink)
MISTER_CHIP Junior Member Join Date: May 2009 Location: Spain Posts: 25 Member: 1041552 Status: Offline Thanks Meter: 3	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

06-02-2009, 22:49	#10 (permalink)
Trion Freak Poster Join Date: Nov 2003 Posts: 370 Member: 44625 Status: Offline Thanks Meter: 36	@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.

06-04-2009, 04:43	#12 (permalink)
Raheeeeb No Life Poster Join Date: Oct 2001 Location: -------- Age: 55 Posts: 1,009 Member: 7062 Status: Offline Thanks Meter: 126	@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

06-06-2009, 10:14	#14 (permalink)
Deusjevoo Insane Poster Join Date: Sep 2008 Posts: 63 Member: 869567 Status: Offline Thanks Meter: 3	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.