Motorola MOTOSLVR L72, Руководство по обслуживанию, Страница: 40 / 49

40 October 12, 2006 6809510A66-O
Troubleshooting MOTOSLVR L9/L72
b) Earpiece speaker defective. Temporarily replace the speaker with a known
good speaker. Ensure good connection. Place a
call and verify improvement in earpiece audio. If
fault is cleared, reassemble the phone with the
good transceiver board. If fault is not cleared,
proceed to c.
c) Transceiver board defective. Replace the transceiver board (refer to 1c).
Verify that the fault has been cleared and
reassemble the phone with the new transceiver
board.
7. Vibrator feature not functioning. a) Vibrator defective. Replace vibrator. If the fault has not been
cleared, proceed to b.
b) Transceiver board defective. Replace the transceiver board (refer to 1c).
Verify that the fault has been cleared and
reassemble the phone with the new transceiver
board.
8. Internal Charger not working. Faulty charger circuit on transceiver
board. 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 phone with the new transceiver
board assembly.
Table 4. Level 1 and 2 Troubleshooting Chart (Continued)
Symptom Probable Cause Verification and Remedy