Key Telephone (Cannot Hear) - Vodavi Starplus DHS Technical Manual

CPU/Power LED
SYMPTOM
Cannot hear
(handset)
SYMPTOM
Other party cannot
hear you on your
speaker phone
SYMPTOM
No sound over
speaker
Table 7-5: Key Telephone (cannot hear)
DIAGNOSTIC AID
Key Telephone Component Failure
Table 7-6: Speakerphone (cannot be heard
DIAGNOSTIC AID
Key telephone Connections,
(other station) component failures
Table 7-7: No Sound From Speaker
DIAGNOSTIC AID
Key telephone Connections,
component failure
CAUSE
1. Verify MUTE is not lit.
2 Lift handset, ICM tone should be heard
over the handset.
3 Press [SPKR] key, observe red LED and
place handset on hook.
If ICM tone is heard over the
loudspeaker, but was not heard
through the handset in Step 1,
exchange handset assembly with
another known working unit.
If ICM tone is still not heard after
repeating the test in Step 1, replace
the coiled handset cord. If the cord is
defective, the original handset is
probably okay.
If ICM dial tone still cannot be heard,
replace key telephone.
CAUSE
1. Verify MUTE is not lit.
2 Press [SPKR] and listen for tone over
the speaker.
3 Call a known good working station.
(The distant party should be using the
handset).
4 If the other party cannot hear you, lift
handset and verify proper handset
operation.
CAUSE
1. Press [SPEAKER] button (red LED).
2 If you can hear ICM tone over the
handset, but not the speaker, replace
the key telephone.
CORRECTIVE ACTION
CORRECTIVE ACTION
CORRECTIVE ACTION
7-5