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Ot charging, Ow stand by time, Operation time – Nokia 3210 User Manual

Page 8: D301 flash faulty, D302 ram faulty/ poor soldering, Intermittent doesn't switch on d301 flash faulty, Not charging

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CONFIDENTIAL

Service & Analysis Center Europe

Training Team

version 1.0 / 05.11.1999

Page 8 of 37

D301 Flash faulty

If the handset switches it self off, change the switch of the service frame to local mode

Check the 32,768KHz Sleep clock signal on C149

Check the 13MHz main clock oscillator on C301 800mVpp

Check the VBB voltage on C117

If power consumption is approximately 20mA try to flash the phone

If you get a error message during the flashing process, change the flash and try it again

D302 RAM faulty/ poor soldering

Check if the handset current consumption is approx. 20mA

Check the 32,768KHz Sleep clock signal on C149

Check the 13MHz main clock oscillator on C301 800mVpp

Check the VBB voltage on C117

Resolder RAM

Try to flash the handset

Change the RAM if you get a error message during the flash procedure "

external RAM error

"

Intermittent doesn't switch on

D301 FLASH faulty

Check if the handset switches on after reflashing the memory

D301 Flash internal fail or poor soldering balls

Not charging

Not charging (1)

confirmation or error massage/ beep is not coming from phone if charger is pluged in

Check

V_CHARGE_IN

on

C100

Change N101

(PSCC)

check system

connector X503,

clean contacts &

PCB or change if

necessary

oK

not oK

Check resistance

0f fuse (F100) and

L100 (0Ohm)

change if

necessary

oK