User Guide

RH-26
7 - Troubleshooting Instructions CCS Technical Documentation
Page 26 ©Nokia Corporation Issue 1 02/04
Baseband Troubleshooting
These instructions show how to repair the baseband section of RH-26 transceiver. Since
RH-26 transceiver shielding is made by using fixed shielding cans, there are some limita-
tions for servicing work (see relevant service bulletins for more information). This is due
to fact that when soldering new cans, component joints located under the shielding cans
may be damaged. Also as a result, traditional troubleshooting flow chart is not very prac-
tical in the case of RH-26. Instead, fault cases are handled by fault symptoms.
NOTE:
• Inside the flip unit there are no serviceable parts either, the whole unit should be
replaced in fault situation.
• Appropriate service tools and Phoenix service software are needed for trouble-
shooting.
• Camera module is very sensitive to heat and must be always removed when
doing solderings to main board.
Figure 4: Transceiver module - top view