Troubleshooting Chart. Motorola E365

Troubleshooting E365

Troubleshooting Chart

Table 4. PF 0C27 Telephone: Level 1 and 2 Troubleshooting Chart no display.

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 a) Battery either discharged or defective.

Probable Cause b) Battery terminals open or misaligned.

c) Transceiver board defective.

a) Antenna defective b) Transceiver board defective.

a) Mating connections to or from transceiver board faulty.

b) Transceiver board defective.

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 terminals on both the battery and the telephone. Realign and, if necessary, either replace the battery or refer to a Level 3 Service Center for battery connector replacement. If battery terminals are not at fault, proceed to c.

Remove the transceiver board assembly.

Substitute a known good transceiver board and temporarily reassemble the unit. Press the PWR button; if unit turns on and stays on, disconnect the dc power source and reassemble the phone with the new transceiver board. Verify that the fault has been cleared.

Check connection between the antenna and the transceiver board. If the connection is OK, substitute a known good antenna. If the fault is still present, proceed to b.

Replace the transceiver board (refer to 1c).

Verify that the fault has been cleared and reassemble the unit with the new transceiver board.

Check general condition of flex and flex connector. If the flex and connector are good, check that the display assembly mounting tabs are fully engaged. If connector is not at fault, proceed to b.

Replace the transceiver board (refer to 1c).

Verify that the fault has been cleared and reassemble the unit with the new transceiver board.

4. Incoming call alert transducer audio distorted or volume is too low.

Faulty transceiver board. Replace the transceiver board (refer to 1c).

Verify that the fault has been cleared and reassemble the unit with the new transceiver board.

Replace the microphone as described in the procedures. If fault is not cleared, proceed to b.

5. Telephone transmit audio is weak.

(usually indicated by called parties complaining of difficulty in hearing voice).

a) Microphone defective.

b) Transceiver board defective.

Replace the transceiver board (refer to 1c).

Verify that the fault has been cleared and reassemble the unit with the new transceiver board.

6. Receive audio from earpiece speaker is weak or distorted.

a) Connections to or from transceiver board defective.

Check connection from the earpiece to the transceiver board. If connection is not at fault, proceed to b.

36 June 12, 2003 6809461A68