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74
February 19, 2008
6809513A80-B
Troubleshooting
Z6m/Z6tv CDMA
Troubleshooting
Troubleshooting Chart
Table 3. Level 1 and 2 Troubleshooting Chart
SYMPTOM
PROBABLE CAUSE
VERIFICATION AND REMEDY
1. Telephone will not turn on or stay on.
a) Battery either discharged or
defective.
Measure battery voltage across a 50 ohm (>1
Watt) load. If the battery voltage is <3.25 Vdc,
recharge the battery using the appropriate
battery charger. If the battery will not recharge,
replace the battery. If battery is not at fault,
proceed to b.
b) Battery connectors open or
misaligned.
Visually inspect the battery connectors on both
the battery and the telephone. Realign and, if
necessary, either replace the battery or refer to
a Level 3 Service Center for the battery
connector replacement. If battery connectors
are not at fault, proceed to c.
c) Transceiver board assembly
defective.
Refer service to authorized Level 3 service
center for replacement.
2. Telephone exhibits poor reception or
erratic operation, such as calls frequently
dropping or weak or distorted audio.
a) Antenna assembly defective.
Check to make sure that the antenna pin is
properly connected to the transceiver board
assembly. If connected properly, substitute a
known good antenna. If the fault is still present,
proceed to b.
b) Transceiver board assembly
defective.
Refer service to authorized Level 3 service
center for replacement.
3. Display is erratic, or provides partial or
no display.
a) Transceiver board connections
faulty.
Remove rear chassis assembly from unit, check
general
condition of flexible printed cable (flex). If the flex
is good, check that the flex connector is fully
pressed down. If not, check connector to
transceiver board connections. If faulty
connector, replace the transceiver board
assembly. If connector is not at fault, proceed to
b.
b) Slider assembly defective.
Temporarily replace the slider 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) Transceiver board assembly
defective.
Refer service to authorized Level 3 service
center for replacement.
4. Incoming call alert transducer audio
distorted or volume is too low.
a) Faulty alert transducer
Replace with a known good alert transducer.
Verify that the fault has been cleared and
reassemble the unit with the new alert
transducer. If fault not cleared, proceed to b.
b) Faulty transceiver board assembly. Refer service to authorized Level 3 service
center for replacement.
5. Telephone transmit audio is weak.
(usually indicated by called parties
complaining of difficulty in hearing voice).
a) Transceiver board assembly
defective.
Refer service to authorized Level 3 service
center for replacement.
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