User Guide

Issue 1 12/04 COMPANY CONFIDENTIAL 41
Copyright © 2004 Nokia. All Rights Reserved.
RAE-6/RA-4
6 - Baseband Description and Troubleshooting Nokia Customer Care
■ Phone is dead troubleshooting
Short circuit
somewhere,
disassemble
phone. Continue
testing in module
jig with engine
PWB only.
Yes
Does it take
any current at
all?
Yes
Does phone still
take too much
current?
Yes
Connect UI
module, does
current
consumption
increase more
than 200mA?
No
Try another UI
module, does
situation
change?
Yes
Find the short
circuit, change the
component and test
again.
Yes
No
Connect full
keyboard
module, is the
current
consumption
about the same
as in the first
measurement?
Change full
keyboard
module
Yes
Short circuit
comes from
mechanics
No
Yes
No
No
Check
Battery
Check UI
module
connector and
surrounding
components
No
Try to flash
Did not help
Unsuccessful
Phone is in flash jig,
powered from
laboratory power
Does it
boot now?
No
Yes
Phone
takes more
than 600mA
current when
powered?
Is battery
connector ok?
Short circuit/
component fail
in UI module.
Go to CMT
troubleshooting
Go to flash
programming
troubleshooting
Check that
both displays
are ok?
Fault is in non-
reworkable
component. Refer to
current BER
handling guidance.
No
Yes
Repair broken
display(s). Retest
after that.