Introduction to BB Troubleshooting
Nearly all of the functions of the phone are contained within or controlled by the D2800 Juno BB ASIC so most
of the debugging will be centered there. The D2800 Juno BB ASIC is static sensitive so precautions must be
taken to avoid damaging this or other devices from excessive ESD.
Baseband self tests in Phoenix
Context
Always start the trouble-shooting procedure by running the Phoenix self tests. 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-test, please go to
Dead or Jammed Device
Troubleshooting.
Note: The phone must be powered-down and in the PWR_OFF state when replacing components.
RM-497
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 – 5
Copyright © 2010 Nokia. All rights reserved.
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