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Lock time or user settings problems, Contact service, N100 ccont faulty – Nokia 3210 User Manual

Page 18: Contact service – eeprom checksum fail

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CONFIDENTIAL

Service & Analysis Center Europe

Training Team

version 1.0 / 05.11.1999

Page 18 of 37

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

internal fault

Reset the phone

(don't use the full

factory set if it is not

permitted to you to

rewrite the IMEI)

EEPROM tune

checksum fail

Check via W INTESLA >

product information, if any

phone data, like: IMEI,

product code, PSN, etc. is

corrupted

Contact Service

Check via W INTESLA / Testing / Selftest

which kind of selftest is failed

Phone is Ok, if

CONTAC T

SERVICE dissapears

No

check 2,8V DC on pin

8 of Eeprom

Check VBB on C117

send this phones to

the SACE Bochum

if it is not permitted to

you to rewrite the

IMEI

change the EEPR OM

if it is permitted to
you, to rewrite the

IMEI

Service Bulletin

general 26

Yes

Yes

not oK

Yes

not oK

oK