N5110 low signal - GSM-Forum

fiZ · 08-12-2002, 12:37

on screen operator's logo and signal or one bar or nothing,antena & contacts are ok.

george gsm · 08-12-2002, 21:24

hello fiz,
1 change antenna
2 resoldering or change the duplexor filter(swich antena). old alcatel(one touch easy) have same piece.
geo

fiZ · 08-13-2002, 10:37

antena ok,i tryed to resold the duplexor,than signal no bars or sometimes full

fiZ · 08-13-2002, 10:41

i think,that need duplexor to change,but how this do?i think that ccont or cobba to much easier to change?How?

willy · 08-13-2002, 22:47

Fiz,
did you check X540 (for ext antenna ) ?
check it in /out is short or not !

Willy

Quote:

Originally posted by fiZ
antena ok,i tryed to resold the duplexor,than signal no bars or sometimes full

fiZ · 08-14-2002, 08:04

X540 not short

doubleB · 08-14-2002, 08:25

chage filter my friend....

fiZ · 08-14-2002, 08:27

What filter? 13 mHz?

willy · 08-14-2002, 15:29

Fiz
first, you try connect EXT antenna to test your phone!

if you do not connect ext. antenna , then it X540 must be short

Willy

Quote:

Originally posted by fiZ
X540 not short

raivenz · 08-15-2002, 01:32

what if didnt sort the problem m8?
what else should i do?

willy · 08-15-2002, 12:07

Rauvenz,

X540 in/out must be short when you do not use ext antenna!

then you can check AFC at 13Mhz TCXO control by cobba.
to see how is TX frequence range good or not !

then send 947.06771Mhz at -55dbm to antenna connector, then start to check 13M and 71M filter one by one for 67K (67.771K)

Willy

Quote:

Originally posted by raivenz
what if didnt sort the problem m8?
what else should i do?

08-12-2002, 12:37	#1 (permalink)
fiZ Registered User Join Date: Feb 2002 Location: nokia Age: 48 Posts: 204 Member: 9626 Status: Offline Thanks Meter: 0	N5110 low signal on screen operator's logo and signal or one bar or nothing,antena & contacts are ok.

08-14-2002, 08:04	#6 (permalink)
fiZ Registered User Join Date: Feb 2002 Location: nokia Age: 48 Posts: 204 Member: 9626 Status: Offline Thanks Meter: 0	to willy X540 not short

08-15-2002, 01:32	#10 (permalink)
raivenz Freak Poster Join Date: Apr 2001 Location: in your network Age: 43 Posts: 379 Member: 4037 Status: Offline Thanks Meter: 15	hmmm........ what if didnt sort the problem m8? what else should i do?

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08-12-2002, 21:24	#2 (permalink)
george gsm No Life Poster Join Date: Jul 2002 Location: Bucharest-Romania Age: 51 Posts: 1,160 Member: 14200 Status: Offline Sonork: Sonork id Thanks Meter: 117	hello fiz, 1 change antenna 2 resoldering or change the duplexor filter(swich antena). old alcatel(one touch easy) have same piece. geo

08-13-2002, 10:37	#3 (permalink)
fiZ Registered User Join Date: Feb 2002 Location: nokia Age: 48 Posts: 204 Member: 9626 Status: Offline Thanks Meter: 0	antena ok,i tryed to resold the duplexor,than signal no bars or sometimes full

08-13-2002, 10:41	#4 (permalink)
fiZ Registered User Join Date: Feb 2002 Location: nokia Age: 48 Posts: 204 Member: 9626 Status: Offline Thanks Meter: 0	i think,that need duplexor to change,but how this do?i think that ccont or cobba to much easier to change?How?

08-14-2002, 08:25	#7 (permalink)
doubleB Freak Poster Join Date: Jun 2002 Location: Manila Age: 46 Posts: 191 Member: 13341 Status: Offline Thanks Meter: 0	chage filter my friend....

08-14-2002, 08:27	#8 (permalink)
fiZ Registered User Join Date: Feb 2002 Location: nokia Age: 48 Posts: 204 Member: 9626 Status: Offline Thanks Meter: 0	What filter? 13 mHz?