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

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