Troubleshooting Hints - galmar Stadio Plus T555ML Manual De Instrucciones

TROUBLESHOOTING HINTS

Nothing operates.
Check the output transformer voltage between SEC terminals: it should have 12 to 17Va.c. If
not, disconnect the transformer from the installation and measure again. If it's correct now,
it means there is a short circuit in the installation: disconnect the transformer from mains
and check the installation.
Inappropriate audio level.
Adjust the level volumes as shown on page 37. In case of feedback, reduce the audio levels
until feedback fade out.
Door open function no operates.
Remember that in systems with several access doors (EL551 sound modules), this function is
only available during call and communication progresses.
Disconnect the lock release from the sound module and short-circuit terminals ' ' and 'P': at
that moment the output voltage between terminals 'CV' and '~2' (in case of EL555 sound
module) or between terminals 'CV' (in case of EL551 sound module) should be 12Va.c. If
it's so check the lock release, its wiring and the wiring of the terminal 'P' from the sound
module to the telephones. If these tests don't solve the problem, replace the sound module.
No telephones receive the call or acknowledgement call signal is not reproduced.
Check that the push buttons common terminal are correctly connected to the 'CP' terminal of
the sound module.
On systems with EL555 sound modules, check that the call type selection jumper is placed in
the correct position (page 38).
The door panels don't change to busy status.
From the moment a call is made in one of the door panels, the voltage between ' ' and 'CO'
terminals should be lower than 3Vd.c. If not, check the continuity of the 'CO' wire.
Once a communication is finished the system remains on busy status.
If the busy status remains for a three minutes period, even if the handset of the called
telephone is on the craddle, check that all the telephones are correctly replaced.
The acknowledgement busy signal is not reproduced.
When someone tries to make a call during busy status, the light push button should be red
and busy signal should be heard at the door panel. If the called telephone is not correctly
replaced or it is in communication, the busy signal will not be reproduced.
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