Introduction To Bb Troubleshooting; Baseband Self Tests In Phoenix - Nokia RM-497 Service Manual

RM-497
BB Troubleshooting and Manual Tuning Guide

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
Baseband Main Troubleshooting section.
the diagram in the
If the phone is dead and you cannot perform the self-test, please go to
Troubleshooting.
Note: The phone must be powered-down and in the PWR_OFF state when replacing components.
Issue 1 COMPANY CONFIDENTIAL
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Dead or Jammed Device
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