Motorola V3m Service Manual page 58

Troubleshooting Chart
Table 2. Level 1 and 2 Troubleshooting Chart (Continued)
SYMPTOM
6. Receive audio from earpiece speaker is
weak or distorted.
7. 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).
8. Vibrator feature not functioning.
9. Internal Charger not working.
10. Real Time Clock resetting when
standard battery is removed.
58
PROBABLE CAUSE
b) Microphone is defective.
c) Transceiver board is defective
a) Connections to or from transceiver
board assembly defective.
b) Flip assembly defective.
c) Antenna assembly defective.
d) Transceiver board assembly
defective.
a) Flip assembly defective.
b) Transceiver board assembly
defective.
Transceiver board assembly defective. Replace the transceiver board assembly (refer
Faulty charger circuit on transceiver
board assembly.
Lithium button cell in the display board
may be depleted.
November 03, 2006
VERIFICATION AND REMEDY
Replace the microphone as described in the
procedures. If the fault is not cleared, proceed to
c.
Replace the transceiver board as described in
the procedures.
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.
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.
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.
Replace the transceiver board assembly (refer
to 1c). Verify that the fault has been cleared and
reassemble with the new transceiver board
assembly.
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 b.
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.
to 1c). Verify that the fault has been cleared and
reassemble the unit with the new 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.
Refer service to a Level 3 service center for
replacement.
V3m
6809501A48-A