What tools for repairing? - GSM-Forum

bbbbbb · 08-27-2003, 20:17

Hi,
I work for a company that imports spare parts and accessories for mobiles. We would like to also start offering repairing tools
Can you please suggest which products are the
best for small repair shops that is for those people who would like to start with repairing?

MrHazeem · 08-28-2003, 18:31

1. chines test jigs...
2. oscilloscope 100 mhz
3. active probe
4. power supply
5. frequency counter
6. BGA soldering machine

That's it ...

-------------------
MrHazeem

bbbbbb · 08-28-2003, 19:44

Dear MrHazeem,
Thank you for your reply.
I am a beginner so can you let me know what is
chines test jigs...
and what is active probe?
thanks

MrHazeem · 08-29-2003, 10:22

Test jig is a hardware ..., u put the nokia board on it ( without casing) so that u can power on the phone ....and do any test u want ....

Active probe : is a probe used with frequency counter to check the frequency on a part in mobile phones ..( to see if there is such a signal or not ... only high frequency) low frequency do not need active probe .....u can use normal probe ...,

-------------------
MrHazeem

sjakie · 09-01-2003, 08:56

Hi.
You know a company thats sell tehse products?

thanks
Sjakie

vule · 09-03-2003, 17:49

I am not sure for chinese jigs...But for test equipment and BGA rework try following...

Rohde&Schwarz - gsm testers, freq. counters, signal generators...
www.rohde-schwarz.com

Martin Gmbh - BGA/CSP rework machines, dispensers, etc
www.martin-smt.de

HP/Agilent - multimeters, oscilloscopes, counters, power supply units, ...
www.agilent.com

Willtek - gsm testers, counters, generators, spectrum analysers...
www.willtek.com

Don't get too upset with prices...

BR

Vule

sjakie · 09-05-2003, 22:00

Thanks for the links.

Ill sit down while searching prices

Sjakie

vule · 09-06-2003, 08:43

I have paid 12.000$ for refurbished and calibrated Rohde&Schwarz CTS55 digital radio tester... Price for new is around 50.000-60.000 $ as i got informed few months ago...

BR

Vule

sjakie · 09-08-2003, 08:24

hi, Vule.

Thats a big summ off money, but if you got much repairs its
a must to invest.

May i ask what Tools you use for remove and reball BGA ?

Sjakie

vule · 09-12-2003, 22:00

Hiya

For BGA rework i use Martin 3000 bga/csp rework/dispenser with auto profiler...

Rest of equipment:

Rohde&Schwarz CTS55 digital radio tester
Rohde&Schwarz CTM 53 programable signal generator
Tektronix THX72 60 MHz oscilloscope/digital multimeter
Philips PM 8255 programable power supply
Willtek 9101 spectrum analyser 4GHz

Of course You have to invest in good reliable equipment, it is very expensive, but it paying itself off, not only by repairing mobile phones...

Best regards

Vule

UnicellComm · 01-06-2004, 08:48

Hi All,
Can you tell me between
Rohde & Schwarz CMD 55 Comm Tester/CMD55/GSM and
HP 8922M/S GSM Mobile Station Test Set.
Which one is better and reliable for testing GSM Mobile for 900/1800/1900 MHZ?

What is the good price to buy used equipment or new equipment?

Thank you for advance...

Joe

45PR1 · 01-07-2004, 00:07

It's maybe a stupid question but i'm a newbie too in reparing phones. What's the prupose of gsm tester ? I suppose this tool worth it...

Scaramouche · 01-07-2004, 08:26

A GSm tester is a integrated collection of instruments in one box for the specific purpose of testing mobile phones. A GSm tester usually has the following

- Signal generator for calibrating & testing RX
- Power meter for testing calibrating TX
- Spectrum analsyer for examining signal
- Base station emulator
- BER & phase checker
- Digital scope
- Audio analyser

They are very expensive as vule said, but well worth it. It will pay itself off as you fix RF problems quickly and easily. Both HP and R & S will do the job you require them to.

Agilent / HP 8922 is old and has been replaced by newer model.
2nd hand they sell around $3000 - $5000 depending on options.

P.S why do you need 1900mhz? As far as i know that network is only in USA.

braveheartz · 05-24-2004, 09:55

Quote:

Originally Posted by sjakie

Thanks for the links.

Ill sit down while searching prices

Sjakie

I have the following test and measurements equipments:

1) HP 8657B 2GHZ SIGNAL GENERATOR
2) HP 54600B 100MHZ OSCILLOSCOPE
3) HP 54503A 500MHZ

braveheartz · 05-24-2004, 09:56

Quote:

Originally Posted by braveheartz

I have the following test and measurements equipments:

1) HP 8657B 2GHZ SIGNAL GENERATOR
2) HP 54600B 100MHZ OSCILLOSCOPE
3) HP 54503A 500MHZ

EMAIL ME AT [email protected] for more information.

08-27-2003, 20:17	#1 (permalink)
bbbbbb Freak Poster Join Date: Aug 2003 Posts: 152 Member: 37416 Status: Offline Thanks Meter: 1	What tools for repairing? Hi, I work for a company that imports spare parts and accessories for mobiles. We would like to also start offering repairing tools Can you please suggest which products are the best for small repair shops that is for those people who would like to start with repairing?

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08-28-2003, 18:31	#2 (permalink)
MrHazeem Freak Poster Join Date: Jul 2002 Location: MAD Age: 50 Posts: 483 Member: 13545 Status: Offline Thanks Meter: 2	1. chines test jigs... 2. oscilloscope 100 mhz 3. active probe 4. power supply 5. frequency counter 6. BGA soldering machine That's it ... ------------------- MrHazeem

08-28-2003, 19:44	#3 (permalink)
bbbbbb Freak Poster Join Date: Aug 2003 Posts: 152 Member: 37416 Status: Offline Thanks Meter: 1	Dear MrHazeem, Thank you for your reply. I am a beginner so can you let me know what is chines test jigs... and what is active probe? thanks

08-29-2003, 10:22	#4 (permalink)
MrHazeem Freak Poster Join Date: Jul 2002 Location: MAD Age: 50 Posts: 483 Member: 13545 Status: Offline Thanks Meter: 2	Test jig is a hardware ..., u put the nokia board on it ( without casing) so that u can power on the phone ....and do any test u want .... Active probe : is a probe used with frequency counter to check the frequency on a part in mobile phones ..( to see if there is such a signal or not ... only high frequency) low frequency do not need active probe .....u can use normal probe ..., ------------------- MrHazeem

09-01-2003, 08:56	#5 (permalink)
sjakie No Life Poster Join Date: Jan 2000 Location: NL Age: 55 Posts: 1,380 Member: 847 Status: Offline Thanks Meter: 36	Hi. You know a company thats sell tehse products? thanks Sjakie

09-03-2003, 17:49	#6 (permalink)
vule No Life Poster Join Date: Apr 2002 Location: Radiometer Medical ApSBrønshøj Age: 51 Posts: 721 Member: 10854 Status: Offline Sonork: 1578988 Thanks Meter: 3	I am not sure for chinese jigs...But for test equipment and BGA rework try following... Rohde&Schwarz - gsm testers, freq. counters, signal generators... www.rohde-schwarz.com Martin Gmbh - BGA/CSP rework machines, dispensers, etc www.martin-smt.de HP/Agilent - multimeters, oscilloscopes, counters, power supply units, ... www.agilent.com Willtek - gsm testers, counters, generators, spectrum analysers... www.willtek.com Don't get too upset with prices... BR Vule

09-05-2003, 22:00	#7 (permalink)
sjakie No Life Poster Join Date: Jan 2000 Location: NL Age: 55 Posts: 1,380 Member: 847 Status: Offline Thanks Meter: 36	Thanks for the links. Ill sit down while searching prices Sjakie

09-06-2003, 08:43	#8 (permalink)
vule No Life Poster Join Date: Apr 2002 Location: Radiometer Medical ApSBrønshøj Age: 51 Posts: 721 Member: 10854 Status: Offline Sonork: 1578988 Thanks Meter: 3	I have paid 12.000$ for refurbished and calibrated Rohde&Schwarz CTS55 digital radio tester... Price for new is around 50.000-60.000 $ as i got informed few months ago... BR Vule

09-08-2003, 08:24	#9 (permalink)
sjakie No Life Poster Join Date: Jan 2000 Location: NL Age: 55 Posts: 1,380 Member: 847 Status: Offline Thanks Meter: 36	hi, Vule. Thats a big summ off money, but if you got much repairs its a must to invest. May i ask what Tools you use for remove and reball BGA ? Sjakie

09-12-2003, 22:00	#10 (permalink)
vule No Life Poster Join Date: Apr 2002 Location: Radiometer Medical ApSBrønshøj Age: 51 Posts: 721 Member: 10854 Status: Offline Sonork: 1578988 Thanks Meter: 3	Hiya For BGA rework i use Martin 3000 bga/csp rework/dispenser with auto profiler... Rest of equipment: Rohde&Schwarz CTS55 digital radio tester Rohde&Schwarz CTM 53 programable signal generator Tektronix THX72 60 MHz oscilloscope/digital multimeter Philips PM 8255 programable power supply Willtek 9101 spectrum analyser 4GHz Of course You have to invest in good reliable equipment, it is very expensive, but it paying itself off, not only by repairing mobile phones... Best regards Vule

01-06-2004, 08:48	#11 (permalink)
UnicellComm Junior Member Join Date: Sep 2003 Age: 52 Posts: 19 Member: 38754 Status: Offline Thanks Meter: 0	Hi All, Can you tell me between Rohde & Schwarz CMD 55 Comm Tester/CMD55/GSM and HP 8922M/S GSM Mobile Station Test Set. Which one is better and reliable for testing GSM Mobile for 900/1800/1900 MHZ? What is the good price to buy used equipment or new equipment? Thank you for advance... Joe

01-07-2004, 00:07	#12 (permalink)
45PR1 No Life Poster Join Date: May 2003 Age: 45 Posts: 510 Member: 65812 Status: Offline Thanks Meter: 0	It's maybe a stupid question but i'm a newbie too in reparing phones. What's the prupose of gsm tester ? I suppose this tool worth it...

01-07-2004, 08:26	#13 (permalink)
Scaramouche Freak Poster Join Date: May 2002 Location: Perth, Western Australia Age: 45 Posts: 313 Member: 11937 Status: Offline Thanks Meter: 1	A GSm tester is a integrated collection of instruments in one box for the specific purpose of testing mobile phones. A GSm tester usually has the following - Signal generator for calibrating & testing RX - Power meter for testing calibrating TX - Spectrum analsyer for examining signal - Base station emulator - BER & phase checker - Digital scope - Audio analyser They are very expensive as vule said, but well worth it. It will pay itself off as you fix RF problems quickly and easily. Both HP and R & S will do the job you require them to. Agilent / HP 8922 is old and has been replaced by newer model. 2nd hand they sell around $3000 - $5000 depending on options. P.S why do you need 1900mhz? As far as i know that network is only in USA.