Nokia 3310.PA or AntenaSwitch??? - GSM-Forum

Format1 · 11-06-2002, 13:07

Hello

Could somebody explain how to recognize is PA broken or Antena Switch.???
I don`t have broken phone right now.
What steps I need to find out when PA is broken and when Antena Switch is broken.
Pleas experts explane.

willy · 11-06-2002, 15:37

Format1

you can use power supply to supply phone and
you can use wintesla to enable TX power on ,
then you can measure TX power level from PA out to antenna switch by use Spectrum analyzer!

OR see power supply current running , and use RF flash LED to "see" TX power

Willy

Format1 · 11-07-2002, 14:08

Hello Sir Willy!

Thanks for answer,but I will be truthly and I will say that I don`t understand what you write.
I`m sorry but I m not expert as you are.
Could you explane this.:
If I get phone that have signal few seconds and than lose it or phone that don`t have signal at all or something like that.
At first I will check if maybe is softwer problem and if not problem is usualy in PA or Antena Switch.
Now I`m interesting to find out by simply way what exacly is problem.PA or Antena Switch.
How to do it???
To put phone near Radio Reciver or something like that....
I hope that you understand what I trying to say.

"you can use power supply to supply phone and
you can use wintesla to enable TX power on ,
then you can measure TX power level from PA out to antenna switch by use Spectrum analyzer!

OR see power supply current running , and use RF flash LED to "see" TX power"

Could you explain that?Do I need to have some special tool?

I`m sorry if I borring you.
Thanks

willy · 11-07-2002, 16:56

Format1,
if you have test jig ( use for measure phone test point without phone casing) , then you have to connect to PC via MUBS, and
run NOKIA SW :wintesla !

in wintesla, you have to go 'tune" menu , then go TX power , then select "eeprom" , and move "bar" to power level 5 ( please take care, antenna pad must has some load, recomand use 5110 RF twinkle LED ) , then you can use SPECTRUM ANALYZER to measure PA output !

Willy

.:*CHENNAI GSM*:. · 11-07-2002, 20:06

Dear Mate Willy

I) I read all your posts about rx tx and all other stuffs . Now having some idea about wintesla I tried scanning a 3310 which showed rssi reading -148 . I changed the cobba and now the reading falls in between -111 and -116. According to your post this is a healthy reading . But I still get no signal.

In netmonitor the first screen stays in "SEAR" mode for some time and then switches to "NSPS" mode . While in SEAR mode it checks for channel availability and locks to channel 10 after sometime.

In tenth screen It shows healthy vco signal.

What could be wrong ?

II) Where can I get all this test jigs and service batteries from ? I am desperately behind these servicing tools which will make any service centre complete . I jus want mine to be complete. Please guide me.

Regards.

willy · 11-07-2002, 20:53

abibaby

RSSI reading from wintesla, it just show you , that IP/QP has "balance" noise from Hager to COBBA !

and you still need to "see" by scope to measure that IP/QP level , for you to make sure that hager is working will !

and about II),, please write me by mail !

willy

Format1 · 11-08-2002, 12:44

HI

Sir Willy thanks for saring information and helping.
Unfortunaly I don`t have any test jig.
What I have is PC,WT and M-Bus cable.

Any way THANKS

Regards

willy · 11-08-2002, 17:25

Format1

No problem, you can build your own test jig !
before i got original 3310 test jig, i use one 3310 B cover , and cut some place in that back of casing , and put resistor 10K ohm ( 22k or 68 k ok too) from BSI to gnd , and give 4V power supply to battery connector !

and fix that MBUS /FBUS cable connect on B cover too, so i can connect it to PC !

Willy

LSDGSM · 11-11-2002, 12:02

@Willy

Can you tell me where is located the BSI point?

Best regards.

willy · 11-11-2002, 15:16

LSDGSM

battery connect pin in PCB

V+ BSI BTEMP GND

Willy

hakika · 11-11-2002, 17:08

@willy daMN you are good @ this! thnx 4 your helps & keep up the goood work! also in crakd wt it states get defaults (rf) after I click apply not do anything. do I need PKD1? in oder to re-write values to eeprom.

yhy · 11-11-2002, 17:57

Hi,

I have Nokia 3310 and it has No Signal Strenght at all. I've tried to flash it and recalculate the FAID, but I've got Error Message "Checksum Error !!! Please Reload the flash file from phone (MCU+PPM only)". I tried to do so, but it still didn't work. How can I do to fix it ??

Best regards,

yhy

willy · 11-12-2002, 03:11

hakika

if you do not like to worry about wintesla and those DLL , yes, PKD-1 is needed !

re-write values to eeprom ???
can you make it more clear ?

Willy

Quote:

Originally posted by hakika
@willy daMN you are good @ this! thnx 4 your helps & keep up the goood work! also in crakd wt it states get defaults (rf) after I click apply not do anything. do I need PKD1? in oder to re-write values to eeprom.

Format1 · 11-12-2002, 09:03

Sir Willy!

Thank you again for all your posts.Here what hapened to me last night.I get phone 3330 with this problem:
When I power it on,phone get networg with full signal.
After about 10 second it lose network and signal at
all.I leave it about 30 minutes,but network didn`t come back.
So because I still don`t have test jig I decide to change PA.
Inside of the phone is Philips BGY270 PA.
So I change it with RF...I don`t reamember mark but it is metal case.I power up phone and gues what?Phone was working grate.I leave it few hours and I test all network functions.Everything was OK.So I was OK and very happy to.
I try few times to power it on and off and everything was OK.
After that I finaly power it off and put charger to charg
battery over the night.
In the morning I power on phone but phone was`t good.
Now I get on the screen name of the operator but there`s NO signal.
If I power it off and on again,sometimes I get signal but only one line and sometimes it lose and that poor line.Almost allways I have name of operator and one line signal,but sometimes it can`t get even that one line and name of operator.
I`m very disapointed.I don`t know what is wrong.I lose many time to give up now.
What is wrong???

Thanks

dambolface · 11-12-2002, 13:32

hello willy,

been wanting to build that test jig before for nokia because i do not have money to spare for the original. Would it be not to much of me to ask you to please provide step by step instructions on how you could build one for different nokia phone (some pictures also perhaps)? appreciate your response and thank you for taking time to read and help folks like us starting in gsm repairs. you are such a valuable help!

best regards,

dambolface

11-06-2002, 13:07	#1 (permalink)
Format1 No Life Poster Join Date: Nov 2000 Posts: 794 Member: 2625 Status: Offline Thanks Meter: 2	Nokia 3310.PA or AntenaSwitch??? Hello Could somebody explain how to recognize is PA broken or Antena Switch.??? I don`t have broken phone right now. What steps I need to find out when PA is broken and when Antena Switch is broken. Pleas experts explane.

11-07-2002, 20:06	#5 (permalink)
.:CHENNAI GSM:. Freak Poster Join Date: Jan 2002 Location: India Age: 48 Posts: 282 Member: 8587 Status: Offline Thanks Meter: 4	messing around like a blind Dear Mate Willy I) I read all your posts about rx tx and all other stuffs . Now having some idea about wintesla I tried scanning a 3310 which showed rssi reading -148 . I changed the cobba and now the reading falls in between -111 and -116. According to your post this is a healthy reading . But I still get no signal. In netmonitor the first screen stays in "SEAR" mode for some time and then switches to "NSPS" mode . While in SEAR mode it checks for channel availability and locks to channel 10 after sometime. In tenth screen It shows healthy vco signal. What could be wrong ? II) Where can I get all this test jigs and service batteries from ? I am desperately behind these servicing tools which will make any service centre complete . I jus want mine to be complete. Please guide me. Regards.

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11-06-2002, 15:37	#2 (permalink)
willy No Life Poster Join Date: Mar 2000 Location: inside NOKIA phone Age: 58 Posts: 1,677 Member: 1060 Status: Offline Thanks Meter: 10	Format1 you can use power supply to supply phone and you can use wintesla to enable TX power on , then you can measure TX power level from PA out to antenna switch by use Spectrum analyzer! OR see power supply current running , and use RF flash LED to "see" TX power Willy

11-07-2002, 14:08	#3 (permalink)
Format1 No Life Poster Join Date: Nov 2000 Posts: 794 Member: 2625 Status: Offline Thanks Meter: 2	Hello Sir Willy! Thanks for answer,but I will be truthly and I will say that I don`t understand what you write. I`m sorry but I m not expert as you are. Could you explane this.: If I get phone that have signal few seconds and than lose it or phone that don`t have signal at all or something like that. At first I will check if maybe is softwer problem and if not problem is usualy in PA or Antena Switch. Now I`m interesting to find out by simply way what exacly is problem.PA or Antena Switch. How to do it??? To put phone near Radio Reciver or something like that.... I hope that you understand what I trying to say. "you can use power supply to supply phone and you can use wintesla to enable TX power on , then you can measure TX power level from PA out to antenna switch by use Spectrum analyzer! OR see power supply current running , and use RF flash LED to "see" TX power" Could you explain that?Do I need to have some special tool? I`m sorry if I borring you. Thanks

11-07-2002, 16:56	#4 (permalink)
willy No Life Poster Join Date: Mar 2000 Location: inside NOKIA phone Age: 58 Posts: 1,677 Member: 1060 Status: Offline Thanks Meter: 10	Format1, if you have test jig ( use for measure phone test point without phone casing) , then you have to connect to PC via MUBS, and run NOKIA SW :wintesla ! in wintesla, you have to go 'tune" menu , then go TX power , then select "eeprom" , and move "bar" to power level 5 ( please take care, antenna pad must has some load, recomand use 5110 RF twinkle LED ) , then you can use SPECTRUM ANALYZER to measure PA output ! Willy

11-07-2002, 20:53	#6 (permalink)
willy No Life Poster Join Date: Mar 2000 Location: inside NOKIA phone Age: 58 Posts: 1,677 Member: 1060 Status: Offline Thanks Meter: 10	abibaby RSSI reading from wintesla, it just show you , that IP/QP has "balance" noise from Hager to COBBA ! and you still need to "see" by scope to measure that IP/QP level , for you to make sure that hager is working will ! and about II),, please write me by mail ! willy

11-08-2002, 12:44	#7 (permalink)
Format1 No Life Poster Join Date: Nov 2000 Posts: 794 Member: 2625 Status: Offline Thanks Meter: 2	HI Sir Willy thanks for saring information and helping. Unfortunaly I don`t have any test jig. What I have is PC,WT and M-Bus cable. Any way THANKS Regards

11-08-2002, 17:25	#8 (permalink)
willy No Life Poster Join Date: Mar 2000 Location: inside NOKIA phone Age: 58 Posts: 1,677 Member: 1060 Status: Offline Thanks Meter: 10	Format1 No problem, you can build your own test jig ! before i got original 3310 test jig, i use one 3310 B cover , and cut some place in that back of casing , and put resistor 10K ohm ( 22k or 68 k ok too) from BSI to gnd , and give 4V power supply to battery connector ! and fix that MBUS /FBUS cable connect on B cover too, so i can connect it to PC ! Willy

11-11-2002, 12:02	#9 (permalink)
LSDGSM Freak Poster Join Date: Nov 2001 Location: Spain Age: 46 Posts: 164 Member: 7343 Status: Offline Thanks Meter: 0	@Willy Can you tell me where is located the BSI point? Best regards.

11-11-2002, 15:16	#10 (permalink)
willy No Life Poster Join Date: Mar 2000 Location: inside NOKIA phone Age: 58 Posts: 1,677 Member: 1060 Status: Offline Thanks Meter: 10	LSDGSM battery connect pin in PCB V+ BSI BTEMP GND Willy

11-11-2002, 17:08	#11 (permalink)
hakika No Life Poster Join Date: Sep 2001 Location: Palestine-Iraq-Afghanistan.... Age: 25 Posts: 532 Member: 6478 Status: Offline Thanks Meter: 3	@willy daMN you are good @ this! thnx 4 your helps & keep up the goood work! also in crakd wt it states get defaults (rf) after I click apply not do anything. do I need PKD1? in oder to re-write values to eeprom.

11-11-2002, 17:57	#12 (permalink)
yhy Junior Member Join Date: Nov 2002 Posts: 1 Member: 17626 Status: Offline Thanks Meter: 0	Hi, I have Nokia 3310 and it has No Signal Strenght at all. I've tried to flash it and recalculate the FAID, but I've got Error Message "Checksum Error !!! Please Reload the flash file from phone (MCU+PPM only)". I tried to do so, but it still didn't work. How can I do to fix it ?? Best regards, yhy

11-12-2002, 09:03	#14 (permalink)
Format1 No Life Poster Join Date: Nov 2000 Posts: 794 Member: 2625 Status: Offline Thanks Meter: 2	Sir Willy! Thank you again for all your posts.Here what hapened to me last night.I get phone 3330 with this problem: When I power it on,phone get networg with full signal. After about 10 second it lose network and signal at all.I leave it about 30 minutes,but network didn`t come back. So because I still don`t have test jig I decide to change PA. Inside of the phone is Philips BGY270 PA. So I change it with RF...I don`t reamember mark but it is metal case.I power up phone and gues what?Phone was working grate.I leave it few hours and I test all network functions.Everything was OK.So I was OK and very happy to. I try few times to power it on and off and everything was OK. After that I finaly power it off and put charger to charg battery over the night. In the morning I power on phone but phone was`t good. Now I get on the screen name of the operator but there`s NO signal. If I power it off and on again,sometimes I get signal but only one line and sometimes it lose and that poor line.Almost allways I have name of operator and one line signal,but sometimes it can`t get even that one line and name of operator. I`m very disapointed.I don`t know what is wrong.I lose many time to give up now. What is wrong??? Thanks

11-12-2002, 13:32	#15 (permalink)
dambolface Major Poster Join Date: Dec 2001 Location: rp Posts: 42 Member: 8113 Status: Offline Thanks Meter: 1	hello willy, been wanting to build that test jig before for nokia because i do not have money to spare for the original. Would it be not to much of me to ask you to please provide step by step instructions on how you could build one for different nokia phone (some pictures also perhaps)? appreciate your response and thank you for taking time to read and help folks like us starting in gsm repairs. you are such a valuable help! best regards, dambolface