Nokia NEM-4 Series Troubleshooting Instructions page 137

CCS Technical Documentation
Go to
Is BER < =
BT Failure No
Part III
BT OK!
Issue 1 09/2003
Company Confidential
Visually check
BT antenna
0.1%?
Yes
Yes
Copyright  2003 Nokia Corporation.
Company Confidential
BT Failure
Part II
(BER Failure)
Test Pogo-Pin
connection to BT
Check R430
antenna
connection to antenna
with multimeter
YES
Are the Pogo-
Pins electrically
Replace
connected to
No BT antenna
BT antenna
(i.e.new chassis)
(i.e. short
circuit)?
Yes
Visually check BT
antenna
YES
Is BT antenna
attached
properly to
chassis?
Yes
Check soldering of
BT MCM with
microscope
Is BT MCM Is soldering so
propely bad that you
No
soldered to the must remove
PWB?
Yes
Can you make
a connection to No
BT Box?
NEM-4
RF Troubleshooting
No
Production Only
Yes Replace BT MCM
BT MCM?
No
Re-Flash phone
Re-solder
using option
BT MCM
BT ONLY
Go to
BT Failure
Part III
Page 6(b)-133