Jovy Systems RE-7500 usage tips - Page 2 - GSM-Forum

s4sajii · 04-25-2007, 08:18

Novice questions

sorry)

1:- Do we have to put the TC near the pcb or touched to the pcb ?

2:- In your video u work with both heater(uppwer and lower) same time.

But in manual , it uses the lower hearter and wait for the temp to reach at 80 to 120 C , than rotate the upper hearter and machine enter in the normal mode. and temp goes 180 to 230 C.

Also the hights of upper heart= ?

Actually i have never used the ir before. usually and most of the time i use the hotair. the idea/technique is different in ir.
So i hope u dont mind my questions.

Sorry for my bad english.
Br

porn · 04-25-2007, 10:48

The heat probe has to touch the part that you are removing.
As far as i know you run lower heater first to preheat the board-Then use both top and bottom to reach your tempreture (180-225)
The HEIGHT does matter on the top heater-I use it at about 4-5 cm-to close may burn board.

s4sajii · 04-25-2007, 13:04

Ok.

I have just open the machine. (got it very long ago but was out of the town to use it).

Now where to start.

I have Assemble it. readed the manual many time.

when i power on it. it should show some thing on the screen. but when i power on it it show yellow light on the screen. then a beep. than nothing.
I leave it for 10 min in the condition. so it may be heating him self or preparing himself to start work. but nothing.

than i power off it and than then power on it again.
than i shows

"self test ok"

ok i wait. but then again screen become yellow or hang. and no button work.

i waited for 5 min. and the off it and then again on.

Now the screen shows.

U..H. Preheat

L.H. Refow

nothing else.

and wait and wait. nothing ,

Anything i am doing wrong.

please help me out.

Br

Raheeeeb · 04-25-2007, 16:58

@s4sajii

better to contact Jovy-sys support

Normally the machine should be operate once you switch it on
and machine do the self test and ready to use .

BR.

Raheeeeb

Raheeeeb · 05-09-2007, 11:21

@ All
New video uploaded

http://www.raheeeeb.cellphonerepair.us/Remove%20glued%20ic's/

BR
Raheeeeb

yourmobilecare · 05-24-2007, 06:31

where did we get this in kerala and how its price plss help me

porn · 05-24-2007, 16:47

The price is about 2000usd
And if you want one im sure jovy can send you one

http://www.jovy-systems.com/

Raheeeeb · 05-24-2007, 19:52

@ All ppl

New Video upload to link below
http://www.raheeeeb.cellphonerepair.us/Remove%20glued%20ic's/

1- include how to prepare Jovy Re7500 to fast process (maximum time2 Min.and 70SEC).

2-How easy and safe to deal with mall glued ic rounded with another Glued ic's

BR.

Raheeeeb

Raheeeeb · 06-04-2007, 17:02

Please find below video of removing the two chips easly .

Note this is first time use Pcb horzintally so you sholud take about these:

1-Use reflictive tape to exclude any other chips to be reflowed

2-cooling stage after removing the flash chip is a must

3-Use the upper heater 7 cm high over the pcb

4-the thermo cuple prope should be adjusted to place near the chips exactly .

http://www.raheeeeb.cellphonerepair.us/

please any more explanation are welcome just send a post about what you need .

BR.

Raheeeeeb

s4sajii · 06-05-2007, 05:57

Quote:

Originally Posted by Raheeeeb

@s4sajii

better to contact Jovy-sys support

Normally the machine should be operate once you switch it on
and machine do the self test and ready to use .

BR.

Raheeeeb

Hi,

I have tried many times to contact to Jovy-sys support but none seems to working. i have waited alot i think.

Can u help me out ? iam still unable to use the machine.

Br

Raheeeeb · 06-05-2007, 11:54

Quote:

Originally Posted by s4sajii

Hi,

I have tried many times to contact to Jovy-sys support but none seems to working. i have waited alot i think.

Can u help me out ? iam still unable to use the machine.

Br

Strange but if you need any help sure i can help you ..

Br.,

Raheeeeb

ssemmedo · 06-14-2007, 02:35

I think this is the best hardware system for gsm leaders.
Best regards

sameh_safa · 06-18-2007, 13:15

very good vedio raheeeeeeb we hope to see more
thank you

porn · 06-21-2007, 19:21

Yes great videos raheeeeb im finding them very helpfull !!!!!!!!!!

But the main problem you make it look very easy-i still find using the hotair gun much easyer for me

Blartiartfast · 06-22-2007, 09:55

Granted, he is good.
First phone I played with worked fine afterwards. Next 3-4 bits either fell off of the board or didn't power on afterwards.

Best thing I did with this station is to either use the silver tape to cover any BGA components that didn't need re-working with the silver tape that came with the station and / or Kapton tape that can be bought from RS.

I prime both top and bottom heater on fast reflow for around a minute, then remove the top heater, switch the base heater to reflow and then line the board up with the lazer pointer. Leave everything until 80' C is reached. Then move the top heater into place on fast reflow. The temperature will rise to 150'C quite quickly. Around 30% of this is the direct heat from the lamp and not the board temp. Then I switch the base heater onto fast reflow. Usually within 20-30 seconds the board is ready. Either joysticks, etc are ready to be removed with tweezers or if the component / s you are working on were fluxed, then they are re-flowed by now..

With some makes of phone the bga chips if not insulated from direct heat will literally **** the solder balls through the glue. This just makes more work.

Flux gel / paste is best. Normal flux evaporates far too early. For stubborn parts such as a D800 I/O port with the board almost completely covered in Kapton tape I had to heat the board to 250'C and the component wouldn't shift even though plenty of flux had been used. A little solder paste placed on the top managed to remove it at 170'C.

I used about 10 or so phones from the graveyard that I have to play with. Different heats, insulation, heights of head, etc. Still have the odd mis-hap but this is relative to the amount of work it does is rare.

Using your eyes when the temperature reaches 150'C is still the best guage. Black marker on a visible solder joint very close or on the component you are working on is a great indicator as to when the solder is workable or not.

04-25-2007, 08:18	#16 (permalink)
s4sajii Banned Join Date: Oct 2001 Location: JMB Age: 49 Posts: 1,226 Member: 6919 Status: Offline Thanks Meter: 12	Novice questionssorry) 1:- Do we have to put the TC near the pcb or touched to the pcb ? 2:- In your video u work with both heater(uppwer and lower) same time. But in manual , it uses the lower hearter and wait for the temp to reach at 80 to 120 C , than rotate the upper hearter and machine enter in the normal mode. and temp goes 180 to 230 C. Also the hights of upper heart= ? Actually i have never used the ir before. usually and most of the time i use the hotair. the idea/technique is different in ir. So i hope u dont mind my questions. Sorry for my bad english. Br

05-24-2007, 19:52	#23 (permalink)
Raheeeeb No Life Poster Join Date: Oct 2001 Location: -------- Age: 55 Posts: 1,009 Member: 7062 Status: Offline Thanks Meter: 126	Fast process method + Another glued ic desoldering @ All ppl New Video upload to link below http://www.raheeeeb.cellphonerepair.us/Remove%20glued%20ic's/ 1- include how to prepare Jovy Re7500 to fast process (maximum time2 Min.and 70SEC). 2-How easy and safe to deal with mall glued ic rounded with another Glued ic's BR. Raheeeeb

06-04-2007, 17:02	#24 (permalink)
Raheeeeb No Life Poster Join Date: Oct 2001 Location: -------- Age: 55 Posts: 1,009 Member: 7062 Status: Offline Thanks Meter: 126	Jovy Re 7500 easy steps removing the flash chip and rap3gv in Nokia n73 Please find below video of removing the two chips easly . Note this is first time use Pcb horzintally so you sholud take about these: 1-Use reflictive tape to exclude any other chips to be reflowed 2-cooling stage after removing the flash chip is a must 3-Use the upper heater 7 cm high over the pcb 4-the thermo cuple prope should be adjusted to place near the chips exactly . http://www.raheeeeb.cellphonerepair.us/ please any more explanation are welcome just send a post about what you need . BR. Raheeeeeb

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Jovy Rework System RE-7500 in germany or austria	Smart-bos	Wanted Products	0	12-24-2007 13:57
JOVY SYSTEMS RE-7500 ready to sell in algeria	multimedia box	Main Sales Section	0	07-19-2007 20:27
Re-7500 Jovi Systems	Mansoor	Hardware Equipments for GSM	1	03-12-2007 23:33
Re-7500 Jovi Systems	G$M solution	Hardware Equipments for GSM	4	02-13-2007 20:41
Jovy Systems RE-7500	arsl	Forum Announcements	38	01-29-2007 15:16

04-25-2007, 10:48	#17 (permalink)
porn No Life Poster Join Date: Apr 2005 Location: colchester Age: 56 Posts: 578 Member: 134206 Status: Offline Thanks Meter: 17	The heat probe has to touch the part that you are removing. As far as i know you run lower heater first to preheat the board-Then use both top and bottom to reach your tempreture (180-225) The HEIGHT does matter on the top heater-I use it at about 4-5 cm-to close may burn board.

04-25-2007, 13:04	#18 (permalink)
s4sajii Banned Join Date: Oct 2001 Location: JMB Age: 49 Posts: 1,226 Member: 6919 Status: Offline Thanks Meter: 12	Ok. I have just open the machine. (got it very long ago but was out of the town to use it). Now where to start. I have Assemble it. readed the manual many time. when i power on it. it should show some thing on the screen. but when i power on it it show yellow light on the screen. then a beep. than nothing. I leave it for 10 min in the condition. so it may be heating him self or preparing himself to start work. but nothing. than i power off it and than then power on it again. than i shows "self test ok" ok i wait. but then again screen become yellow or hang. and no button work. i waited for 5 min. and the off it and then again on. Now the screen shows. U..H. Preheat L.H. Refow nothing else. and wait and wait. nothing , Anything i am doing wrong. please help me out. Br

04-25-2007, 16:58	#19 (permalink)
Raheeeeb No Life Poster Join Date: Oct 2001 Location: -------- Age: 55 Posts: 1,009 Member: 7062 Status: Offline Thanks Meter: 126	@s4sajii better to contact Jovy-sys support Normally the machine should be operate once you switch it on and machine do the self test and ready to use . BR. Raheeeeb

05-09-2007, 11:21	#20 (permalink)
Raheeeeb No Life Poster Join Date: Oct 2001 Location: -------- Age: 55 Posts: 1,009 Member: 7062 Status: Offline Thanks Meter: 126	@ All New video uploaded http://www.raheeeeb.cellphonerepair.us/Remove%20glued%20ic's/ BR Raheeeeb

05-24-2007, 06:31	#21 (permalink)
yourmobilecare Major Poster Join Date: Oct 2006 Posts: 41 Member: 364585 Status: Offline Thanks Meter: 0	where did we get this in kerala and how its price plss help me

05-24-2007, 16:47	#22 (permalink)
porn No Life Poster Join Date: Apr 2005 Location: colchester Age: 56 Posts: 578 Member: 134206 Status: Offline Thanks Meter: 17	The price is about 2000usd And if you want one im sure jovy can send you one http://www.jovy-systems.com/

06-14-2007, 02:35	#27 (permalink)
ssemmedo Freak Poster Join Date: May 2001 Location: Cape Verde Age: 49 Posts: 232 Member: 4596 Status: Offline Sonork: ssemmedo Thanks Meter: 3	I think this is the best hardware system for gsm leaders. Best regards

06-18-2007, 13:15	#28 (permalink)
sameh_safa No Life Poster Join Date: Mar 2005 Location: Egypt Age: 52 Posts: 501 Member: 129676 Status: Offline Thanks Meter: 39	very good vedio raheeeeeeb we hope to see more thank you

06-21-2007, 19:21	#29 (permalink)
porn No Life Poster Join Date: Apr 2005 Location: colchester Age: 56 Posts: 578 Member: 134206 Status: Offline Thanks Meter: 17	Yes great videos raheeeeb im finding them very helpfull !!!!!!!!!! But the main problem you make it look very easy-i still find using the hotair gun much easyer for me

06-22-2007, 09:55	#30 (permalink)
Blartiartfast No Life Poster Join Date: May 2001 Location: U.K Age: 53 Posts: 1,425 Member: 4611 Status: Offline Thanks Meter: 68	Granted, he is good. First phone I played with worked fine afterwards. Next 3-4 bits either fell off of the board or didn't power on afterwards. Best thing I did with this station is to either use the silver tape to cover any BGA components that didn't need re-working with the silver tape that came with the station and / or Kapton tape that can be bought from RS. I prime both top and bottom heater on fast reflow for around a minute, then remove the top heater, switch the base heater to reflow and then line the board up with the lazer pointer. Leave everything until 80' C is reached. Then move the top heater into place on fast reflow. The temperature will rise to 150'C quite quickly. Around 30% of this is the direct heat from the lamp and not the board temp. Then I switch the base heater onto fast reflow. Usually within 20-30 seconds the board is ready. Either joysticks, etc are ready to be removed with tweezers or if the component / s you are working on were fluxed, then they are re-flowed by now.. With some makes of phone the bga chips if not insulated from direct heat will literally **** the solder balls through the glue. This just makes more work. Flux gel / paste is best. Normal flux evaporates far too early. For stubborn parts such as a D800 I/O port with the board almost completely covered in Kapton tape I had to heat the board to 250'C and the component wouldn't shift even though plenty of flux had been used. A little solder paste placed on the top managed to remove it at 170'C. I used about 10 or so phones from the graveyard that I have to play with. Different heats, insulation, heights of head, etc. Still have the odd mis-hap but this is relative to the amount of work it does is rare. Using your eyes when the temperature reaches 150'C is still the best guage. Black marker on a visible solder joint very close or on the component you are working on is a great indicator as to when the solder is workable or not.