Programming: Software Upgrade And Flexing - Motorola V70 Service Manual

Wireless telephone gsm 1900 mhz & gprs technologies
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Troubleshooting
Table 4. V70 Telephone: Level 1 and 2 Troubleshooting Chart (Continued)
SYMPTOM
7. Telephone will not recognize or accept
SIM card.
8. Vibrator feature not functioning.
9. Internal Charger not working.
10. No or weak audio when using headset. a) Headset plug not pushed fully

Programming: Software Upgrade and Flexing

38
PROBABLE CAUSE
b) Earpiece speaker defective.
c) Transceiver board assembly
defective.
a) SIM card defective.
b) Transceiver board assembly
defective.
a) Vibrator defective.
b) Transceiver board assembly
defective.
Faulty charger circuit on transceiver
board assembly.
home.
b) Faulty jack on transceiver board
assembly.
Contact your local technical support engineer for information about equipment and
procedures for flashing and flexing.
January 08, 2002
VERIFICATION AND REMEDY
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.
Replace the transceiver board assembly (refer
to 1c). Verify that the fault has been cleared and
reassemble with the new transceiver board
assembly.
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.
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.
Replace vibrator as described in the
procedures. If the fault has not been cleared,
proceed to b.
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.
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.
Ensure the headset plug is fully seated in the
jack.
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.
6881039B25

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