Non reworkable BB components
The X-GOLD614® IC (D2800) is non-reworkable. This means that if failure diagnostics leads to the conclusion
of defective D2800, the PWB has to be swapped with a working unit.
BB Main troubleshooting
The following sections contain in-depth trouble-shooting guides for various areas of the baseband circuit. It
is assumed that a battery simulator containing a valid BSI resistance is used to supply the phone, or a valid
battery is used.
Baseband self self-test in Care Suite
Context
Always start the troubleshooting procedure by running the Care Suite Product Support Tool (PST) self test. If
a test fails, please follow the diagram in the Baseband Main Troubleshooting section.
If the phone is dead and you cannot perform the self tests, go to
Dead or jammed device troubleshooting.
RM-839; RM-840; RM-841
BB Troubleshooting and Manual Tuning Guide
Issue 1 NOKIA INTERNAL USE ONLY Page 3 – 7
Copyright © 2013 Nokia. All rights reserved.
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