Service Gsm 900 - Nokia 7110 Manual

Service & Analysis Center Europe
SACE AMS Training Group
NO SERVICE GSM 900 -
REF: GSM 900: Ch60 (947 MHz) / GSM 1800: Ch700 (1842,8 MHz).
WINTESLA TUNING RX CALIBRATIONS
Failed to set low
reference
notOK
Change Z700
notOK
Change Z701
notOK
Change N700
NOTE : If COBBA has been changed, SIMLOCK & IMEI
data must be set. Also realign RX/TX values esp.TX
I/Q.
Repairhints_nse5_002508
First Check spectrum if it is only a RX failure , see spectrum charts.
Failed to set
high reference
notOK
Check 71 MHz
IF at C617/618
OK
Check 71 MHz
IF at
N700,pin37/38
OK
Check 13MHz
IF in/out at
Z701
OK OK
Check 13MHz
IF at N700 pin
23/24
OK
Change COBBA
( N200 )
CONFIDENTIAL
NSE-5
Repairhints
30.07.2000
notOK
Check 13MHz
Ref.frequency at
G701,N700, pin15
(+/- 50Hz)
OK
notOK
Check GSM
LNA 947MHz
at N600,pin27
OK
notOK
Check 947
MHz in/out at
Z600
OK
notOK
Check UHF
2036 MHz at
N600 Pin3
OK
Check UHF
2036 MHz at
G700
notOK
notOK
Check Vc&Vcc
at G700
Checked by:
AMS TRAINING GROUP
17 (30)
Version 1.0 Approved
Change G701
Check
Z500/503
Change Z600
Change N600
Change G700
Approved by:
SACE