t28s and t29s pcb diagram - GSM-Forum

bitnik · 08-12-2003, 17:15

Does anyone have them?
Tnx in advance.
To be more spesific I want to fix the signal prob to my phones and I dont know where is the ic's i must replace.

aero69 · 08-13-2003, 03:53

what do actually want ?

schematic or PCB diagram.

regards

bitnik · 08-13-2003, 08:18

Hi aero69,
tnx for ur respond, to be sure I don't know exactly what do I need, to be spesific I just need someone to tell me where is the ic I must change to fix my t28s and my t29s loosing signal problem.
The exact prob is that, althought they both show all networks while shearching networks none of them have signal to make or recieve a call.
Any suggestions?
tnx in advance

aero69 · 08-14-2003, 06:35

hi..

maybe your PA or RF processor is faulty

please follow this link for PCB picture.

http://www.inside-gsm.com/Ericsson/T...ption_t28.html

the PA is item no 15 in the pic.

try it..
regards

08-12-2003, 17:15	#1 (permalink)
bitnik Crazy Poster Join Date: Jun 2003 Location: Greece Age: 54 Posts: 53 Member: 32408 Status: Offline Thanks Meter: 0	t28s and t29s pcb diagram Does anyone have them? Tnx in advance. To be more spesific I want to fix the signal prob to my phones and I dont know where is the ic's i must replace.

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08-13-2003, 03:53	#2 (permalink)
aero69 Insane Poster Join Date: Nov 2001 Location: usa Posts: 75 Member: 7316 Status: Offline Thanks Meter: 0	what do actually want ? schematic or PCB diagram. regards

08-13-2003, 08:18	#3 (permalink)
bitnik Crazy Poster Join Date: Jun 2003 Location: Greece Age: 54 Posts: 53 Member: 32408 Status: Offline Thanks Meter: 0	Hi aero69, tnx for ur respond, to be sure I don't know exactly what do I need, to be spesific I just need someone to tell me where is the ic I must change to fix my t28s and my t29s loosing signal problem. The exact prob is that, althought they both show all networks while shearching networks none of them have signal to make or recieve a call. Any suggestions? tnx in advance

08-14-2003, 06:35	#4 (permalink)
aero69 Insane Poster Join Date: Nov 2001 Location: usa Posts: 75 Member: 7316 Status: Offline Thanks Meter: 0	hi.. maybe your PA or RF processor is faulty please follow this link for PCB picture. http://www.inside-gsm.com/Ericsson/T...ption_t28.html the PA is item no 15 in the pic. try it.. regards