
6881039B15
August 01, 2001
37
Level 1 and 2 Service Manual
Troubleshooting
PRELIMINARY
b) 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.
insert a known good discharged battery.
Connect a known good charger and verify
battery is being charged. If fault still present,
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 fully inserted.
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 3. PF C25 and C43 Telephones: Level 1 and 2 Troubleshooting Chart (Continued)
SYMPTOM
PROBABLE CAUSE
VERIFICATION AND REMEDY
Содержание C25
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