Diagnostics; Phone Is Dead - Nokia 7600 Troubleshooting Manual

CCS Technical Documentation

Diagnostics

Phone is Dead

Start
Is phone
Yes
current 0 mA?
Replace
R204
No
Issue 1 (11/2003)
Company Confidential
Will the phone
power-up in
Test or Local
mode?
Yes
Check BSI
No
circuit R204
OK?
Yes
With the phone in
LOCAL mode, using
Phoenix check battery
voltage, recalibrate if
necessary.
Is flash
Yes
programming
working?
No
Flash fault
Copyright  2003 Nokia Corporation
Company Confidential
Check X200
(contact and
No
solder joints).
OK?
Yes
Are VFLASH1 and
VIO enabled
momentarily at
power up?
Yes
Check RF-CLK
at both sides
No
of C300. Is it
19.2MHz?
Yes
Possible
problem with
TIKU, UEME, or
Memories.
End
NMM-3
6-Troubleshooting
Replace
No
X200
Replace
No
UEME
D200
Check R822,
C300, C861,
No
C870 and
L899. OK?
Yes
Replace Replace
defective
G820
part.
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