CONFIDENTIAL 21 (30)
NSE-5
Service & Analysis Center Europe Repairhints Version 1.0 Approved
SACE AMS Training Group 30.07.2000
Repairhints_nse5_002508 Checked by:
AMS TRAINING GROUP
Approved by:
SACE
TX FAILURE
GSM 900 faulty GSM1800 faulty
Check 13MHz RFCLK at N700,
pin15 (+/-50Hz). Change if
faulty.
Check 116 MHz at
N700, pin 44/45
Check 116 MHz at N600, pin
25/26
Check UHF 2036 MHz
at N600, pin 4
Check PA_GSM
(902MHz) at
N600,pin22
Check
PA_GSM(902MHz) at
N500,pin1
Check PA_GSM at
N500,pin4
Check 232MHz at
N700,pin 46
Check 232Mhz at
N600,pin 35/37
Check UHF 1979,8MHz
at N600,pin4
Check PA_PCN
(1747,8MHz)at
N600,pin 40
Check PA_PCN at
N501,pin1
Check PA_PCN at
N501,pin4
Check VHF 464MHz at
N700, pin 8
Change N700
Check Z702
Check/change G700
Change N600
Check Z601 (in/out)
Check Z603,N502,Z502
Change G702
Check PA_GSM at L500,
Z500/503, X500/501
Check at N500/501,pin2:
CTL_GSM=0,7-1,7Vpp
CTL_PCN=0,12-0,2Vpp
( squarewave, depends on PWR-level )
Check PA_PCN at
Z504-Ant-conn.
Check/change L503
Check VC at Z504
(0,9VDC squarewave)
Change Z504
OK
notOK
OK
OK
notOK notOK
notOK
notOK
notOK
notOK
notOK
OK
OK
OK
OK
OK
OK
notOK
notOK
notOK
notOK
OK
OK
OK
OK
OK
OK
OK
notOK
Check PA_PCN at Z503,
X500/501
Check at N503: a).BAND_SEL
(lowlevel)on pin2, b).VTX
(2.8Vpulsed)on pin 1
notOK
Check/change
a) N600, b) N100 (pin24)
if notOK, MAD faulty
notOK
YES
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