Motorola V360, Руководство по обслуживанию

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6809493A69-O May 18, 2005 41
Level 1 and 2 Service Manual Troubleshooting
Troubleshooting Chart
Table 4. 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.
Remove the transceiver board assembly.
Substitute a known good assembly and
temporarily reassemble the unit. Press and
hold the PWR button; if unit turns on and
stays on, disconnect the dc power source
and reassemble the telephone with the new
transceiver board assembly. Verify that the
fault has been cleared.
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.
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.
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) 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) 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.
4. Incoming call alert transducer audio
distorted or volume is too low.
Faulty 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.