PAMS Technical Documentation
Disassembly & Troubleshooting
NSB-7
Issue 1 06/00
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Nokia Mobile Phones Ltd.
Page 23
can be calibrated. Calibration is included in VBATT A/D reading task.
Troubleshooting
Troubleshooting instructions are divided into following sections:
How to check/fix the system/sleep clock.
How to check/fix the power supplies.
Contact service case.
How to check/fix the SIM faults.
How to check/fix the Audio faults.
How to check/fix the charger faults.
The first thing to do is to carry out a thorough visual check of the module. Make sure
that:
- there are no mechanical damages
- solder joints are OK
Before changing anything ALL SUPPLY VOLTAGES AND SYSTEM CLOCK / SLEEP CLOCK
should be checked.
26MHz VCXO Clock signal
G830 buffer
V800++
HAGAR 13MHz MAD
N505 C213
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