Switch Off; Display Shows "Contact Service - Nokia RM-305 Service Manual

RM-305; RM-306
Baseband troubleshooting

Switch off

Troubleshooting flow
If this kind of a failure is presenting itself immediately after FLALI, it is most likely caused by ASIC's missing
contact with PWB. If the MCU doesn't service the watchdog register within the UEMCLite, the operations
watchdog will run out after approximately 32 seconds. Unfortunately, the service routine can not be
measured.
Figure 11 Switch off troubleshooting

Display shows "Contact Service"

Troubleshooting flow
This error can only happen at power up where several self-tests is run. If any of these test cases fails the
display will show the message: "Contact Service".
It's individual test cases so the below lineup of error hunting's has no chronological order. Use common sense
and experience to decide which test case to start error hunting at.
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