User Guide

NSD-5
10. Troubleshooting PAMS Technical Documentation
Page 12 Nokia Corporation Issue 1 05/02
Check Sleep Clock
Figure 2: Sleep clock picture
In the Field
Although solder joints may be adequate to pass manufacturing requirements, they may
not withstand mechanical stress or heat cycling. Cracked or broken solder may cause
failures to occur as the result of simple use. Reflowing some of the major components
may fix problems where the phone exhibits strange behavior (some buttons may not
work, the phone doesn’t ring, or the phone doesn’t power on).
Power Supplies
Measure the power supplies. Test points are illustrated in the baseband test points table
and the layout diagram.