42 May 18, 2005 6809493A69-O
Troubleshooting V360
5. Telephone transmit audio is weak.
(usually indicated by called parties
complaining of difficulty in hearing
voice).
a) Transceiver board assembly
defective.
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.
6. Receive audio from earpiece speaker is
weak or distorted.
a) Connections to or from transceiver
board assembly defective.
Gain access to the transceiver board assembly
as described in the procedures. Check flex
and the flex connector from the flip
assembly to the transceiver board
assembly. If flex is at fault, replace flip
assembly. If flex connector is at fault,
proceed to d. If connection is not at fault,
proceed to b.
b) Flip assembly defective.
Temporarily replace the flip assembly with a
known good assembly. If fault has been
cleared, reassemble with the new flip
assembly. If fault not cleared, proceed to c.
c) 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.
d) Transceiver board assembly
defective.
Replace the transceiver board assembly (refer
to 1c). Verify that the fault has been cleared
and reassemble with the new transceiver
board assembly.
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.
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.
8. Phone does not sense when flip is
opened or closed (usually indicated
by inability to answer incoming calls
by opening the flip, or inability to make
outgoing calls).
a) Keypad assembly defective.
Check keypad for dirt or defects. Temporarily
replace the keyboard assembly with a
known good assembly. If fault has been
cleared, reassemble with the new keypad
assembly. If fault not cleared, proceed to b.
b) Transceiver board assembly
defective.
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 4. Level 1 and 2 Troubleshooting Chart (Continued)
SYMPTOM PROBABLE CAUSE VERIFICATION AND REMEDY
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