Troubleshooting Chart - Motorola MOTORIZR Z6 Service Manual

Level 1 and 2 Service Manual

Troubleshooting Chart

Table 3. Level 1 and 2 Troubleshooting Chart
SYMPTOM
1. Telephone will not turn on or stay on.
2. Telephone exhibits poor reception or
erratic operation, such as calls frequently
dropping or weak or distorted audio.
3. Display is erratic, or provides partial or
no display.
4. Incoming call alert transducer audio
distorted or volume is too low.
5. Telephone transmit audio is weak.
(usually indicated by called parties
complaining of difficulty in hearing voice).
6809506A96-O
PROBABLE CAUSE
a) Battery either discharged or
defective.
b) Battery connectors open or
misaligned.
c) Transceiver board assembly
defective.
a) Antenna assembly defective.
b) Transceiver board assembly
defective.
a) Transceiver board connections
faulty.
b) Flip assembly defective.
c) Transceiver board assembly
defective.
a) Faulty alert transducer
b) Faulty transceiver board assembly. Refer service to authorized Level 3 service
a) Microphone connections to the
transceiver board assembly defective.
b) Microphone defective.
c) Transceiver board assembly
defective.
March 13, 2007
VERIFICATION AND REMEDY
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.
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.
Refer service to authorized Level 3 service
center for replacement.
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.
Refer service to authorized Level 3 service
center for replacement.
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.
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.
Refer service to authorized Level 3 service
center for replacement.
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.
center for replacement.
Gain access to the microphone as described in
the procedures. Check connections. If connector
is faulty proceed to c; if the connector is not at
fault, proceed to b.
Gain access to microphone. Disconnect and
substitute a known good microphone. Place a
call and verify improvement in transmit signal as
heard by called party. If good, reassemble with
new microphone. If microphone is not at fault,
reinstall original microphone and proceed to c.
Refer service to authorized Level 3 service
center for replacement.
Troubleshooting
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