T10 problem - GSM-Forum

bigman10 · 07-22-2002, 00:05

Hi,

I have T10->T18. And the problem is that the signal is very weak. Sometimes i'm able to call but sometimes not. I think there is prob. with 900Mhz band. How can i test it? What soft I have to use? Or maybe someone have schematics, where is shown where is what?

jonwillow · 07-22-2002, 16:24

try change in eeprom PA calibration area from other eeprom.
If it don't help try this :
0 Change IF Filter
1 Change RF Power Amplifilter
2 Change RF Power Control IC
3 Change 900Mhz Antenna Switch
4 Change 900Mhz TX,RX VOC
If phone paste this have bad signal, try other way.
Good Luck

bigman10 · 07-23-2002, 00:28

Hi,

Do you have any schematics where I could see where is IF Filter
, RF Power Amplifilter and etc.?

jonwillow · 07-23-2002, 04:07

You can contact to me , private-> mailto: [email protected]
I can help you.

07-22-2002, 00:05	#1 (permalink)
bigman10 Freak Poster Join Date: Oct 2001 Location: Lithuania Age: 38 Posts: 162 Member: 6869 Status: Offline Thanks Meter: 0	T10 problem Hi, I have T10->T18. And the problem is that the signal is very weak. Sometimes i'm able to call but sometimes not. I think there is prob. with 900Mhz band. How can i test it? What soft I have to use? Or maybe someone have schematics, where is shown where is what?

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07-22-2002, 16:24	#2 (permalink)
jonwillow No Life Poster Join Date: Sep 1999 Location: Europe Age: 43 Posts: 905 Member: 461 Status: Offline Thanks Meter: 2	try change in eeprom PA calibration area from other eeprom. If it don't help try this : 0 Change IF Filter 1 Change RF Power Amplifilter 2 Change RF Power Control IC 3 Change 900Mhz Antenna Switch 4 Change 900Mhz TX,RX VOC If phone paste this have bad signal, try other way. Good Luck

07-23-2002, 00:28	#3 (permalink)
bigman10 Freak Poster Join Date: Oct 2001 Location: Lithuania Age: 38 Posts: 162 Member: 6869 Status: Offline Thanks Meter: 0	Hi, Do you have any schematics where I could see where is IF Filter , RF Power Amplifilter and etc.?

07-23-2002, 04:07	#4 (permalink)
jonwillow No Life Poster Join Date: Sep 1999 Location: Europe Age: 43 Posts: 905 Member: 461 Status: Offline Thanks Meter: 2	You can contact to me , private-> mailto: [email protected] I can help you.