User Guide

PAMS
Technical Documentation
NSE–8/9
Troubleshooting
Page 4
Issue 1 07/99
Baseband Trouble Shooting
The following hints should facilitate finding the cause of the problem when the cir-
cuitry seems to be faulty. This troubleshooting instruction is divided into the following
section.
4.1 Phone is totally dead
4.2 Flash programming doesn’t work
4.3 Power doesn’t stay on or phone is jammed
4.4 Display Information: Contact Service
4.5 The phone doesn’t register to the network or phone doesn’t make a call
4.6 Plug in SIM card is out of order ( insert SIM card or card rejected).
4.7 Audio fault.
4.8 Charging Fault
The first thing to do, is carry out a through visual check of the module.
Ensure in particular that:
a) there is not any mechanical damage (especially battery connector X101, X102)
b) solder joints are OK
NOTE: X201 is a connection that is ONLY present in the production. Therefore it is
not applicable for the PAMS repair.
Service interface J100 - J105 should be used along with service tools:
– TDS–7 ( Service battery )
– MJS–13 ( Module repair Jig )
The diagnostics on the following pages assumes that the tranceiver bd. Is placed in
the MJS–13 jig.