Motorola V70, Service Manual, Page: 42 / 59

38 January 08, 2002 6881039B25
Troubleshooting
Programming: Software Upgrade and Flexing
Contact your local technical support engineer for information about equipment and
procedures for flashing and flexing.
b) Earpiece speaker defective. Temporarily replace the speaker assembly with
a known good assembly. Ensure good
connection. Place a call and verify improvement
in earpiece audio. If fault is cleared, reassemble
the phone with the good assembly. If fault is 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 with the new transceiver board
assembly.
7. Telephone will not recognize or accept
SIM card. a) SIM card defective. Check the SIM card contacts for dirt. Clean if
necessary, and check if fault has been cleared.
If the contacts are clean, insert a known good
SIM card into the telephone. Power up the unit
and confirm that the card has been accepted. If
the fault no longer exists, replace the defective
SIM card. If the SIM card is not at fault, 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.
8. Vibrator feature not functioning. a) Vibrator defective. Replace vibrator as described in the
procedures. If the fault has not been cleared,
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.
9. Internal Charger not working. Faulty charger circuit on transceiver
board assembly. 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 unit with the new transceiver
board assembly.
10. No or weak audio when using headset. a) Headset plug not pushed fully
home.
Ensure the headset plug is fully seated in the
jack.
b) Faulty jack on 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.
Table 4. V70 Telephone: Level 1 and 2 Troubleshooting Chart (Continued)
SYMPTOM PROBABLE CAUSE VERIFICATION AND REMEDY