Service manual

6809511A67-O March 28, 2007 35
Level 1 and 2 Service Manual Troubleshooting
Programming: Software Upgrade and Flexing
Contact your local technical support engineer for information about equipment and procedures
for flashing and flexing.
b) Antenna assembly defective. Check to make sure the antenna is installed
correctly. If the antenna is installed correctly,
substitute a known good antenna assembly. If
this does not clear the fault, reinstall the original
antenna assembly and proceed to d.
c) Transceiver board assembly
defective.
Forward to an authorized level 3 service center.
7. Telephone will not recognize or accept
SIM.
a) SIM defective. Check the SIM contacts for dirt. Clean if
necessary and check if fault has been cleared. If
the contacts are clean, insert a known good SIM
into the telephone. Power up the unit and
confirm that the SIM has been accepted. If the
fault no longer exists, replace the defective SIM.
If the SIM is not at fault, proceed to b.
b) Transceiver board assembly
defective.
Forward to an authorized level 3 service center.
8. Vibrator feature not functioning. Transceiver board assembly defective. Forward to an authorized level 3 service center.
9. Internal Charger not working. Faulty charger circuit on transceiver
board assembly.
Test a selection of batteries in the rear pocket of
the desktop charger. Check LED display for the
charging indications. If these are charging
properly, then the internal charger is at fault.
Replace the transceiver board assembly (refer
to 1c). Verify that the fault has been cleared and
reassemble the unit with the new transceiver
board assembly.
10. Real Time Clock resetting when
standard battery is removed.
Lithium button cell in the display board
may be depleted.
Refer service to a Level 3 service center for
replacement.
11. No or weak audio when using headset. a) Headset not fully pushed home. Ensure the headset plug is fully seated in the
jack socket. If fault not cleared, proceed to b.
b) Faulty jack socket on transceiver
board assembly.
Replace the transceiver board assembly (refer
to 1c). Verify that the fault has been cleared and
reassemble the unit with the new transceiver
board assembly.
Table 3. : Level 1 and 2 Troubleshooting Chart (Continued)
SYMPTOM PROBABLE CAUSE VERIFICATION AND REMEDY