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N100 CCONT Faulty
Check if 3,2V on R413 drops to 0V during pressing the Power on button
Check if there is a 32.768 kHz square wave on C149
Check if PURX on R303 goes up to 2.8 V DC
Check if VXO on C102 goes up to 2.8 V DC
Check if VBB on C117 goes to 2,8V DC
Check if Vref on C123 goes to 1,5V DC
Change the CCONT
Contact service – Eeprom checksum fail
EEPROM tune
checksum fail
Yes
Check via W INTESLA >
product information, if any
phone data, like: IMEI,
product code, PSN, etc. is
corrupted
change the EEPROM
if it is permitted to
you, to rewrite the
version 1.0 / 05.11.1999
CONFIDENTIAL
Contact Service
Check via W INTESLA / Testing / Selftest
which kind of selftest is failed
Reset the phone
(don't use the full
No
factory set if it is not
permitted to you to
rewrite the IMEI)
Yes
check 2,8V DC on pin
8 of Eeprom
oK
EEPROM
internal fault
IMEI
Service Bulletin
general 26
Service & Analysis Center Europe
Phone is Ok, if
Yes
CONTACT
SERVICE dissapears
not oK
not oK
Check VBB on C117
send this phones to
the SACE Bochum
if it is not permitted to
you to rewrite the
IMEI
Training Team
Page 18 of 37
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