Conventional Systems Technical Manual - Alcad

A call made from the entrance panel does not ringat concierge.Check connections 13,14 from the concierge telephone to theentrance panel. Check that the voltage between 13,2 is 9 ±10%Vdc. Check the connection between 7 on the audio unit and thepush buttons on the entrance panel. Check that the voltage between7,2 on the audio unit in the entrance panel is 14.5 ±10%Vdc, without pressing the push button. If you cannot find the faultthere may be something wrong with the audio concierge or theentrance panel audio unit.A call made from concierge does not ring on anytelephone.Check that the voltage between 7,2 on the audio unit, withoutpressing the push button, is 14.5 ±10% Vdc. Check the connectionbetween 7 on the audio unit and the push buttons. Checkconnections 13,14 on the concierge audio unit. Check that thevoltage between 13,2 is 9 ±10% Vdc. If you cannot find thefault, there may be something wrong with the concierge audiounit.A call made from concierge does not ring on one ofthe phones.Check that the telephone has been hung up. Check connections5,2 from the telephone in the dwelling to the concierge telephone.Check the push button connection on the conciergepanel. If you cannot find the fault, there may be something wrongwith the telephone or the panel push button.You cannot hear any of the telephones.Check connections 3,2 between the audio unit and the conciergetelephone. Check connections 3,2 from the concierge telephoneto the telephones. Check the volume control on the conciergeaudio unit. Check the CC2 connector connection on theconcierge telephone. Check the voltage between terminals 3,2on the concierge telephone. If you cannot find the fault, theremay be something wrong with the audio concierge or conciergeaudio unit.You cannot hear one of the telephones.Check connections 3,2 from the telephone in the dwelling tothe concierge telephone. If you cannot find the fault, there maybe something wrong with the telephone in the dwelling.You cannot hear the entrance panel.Check connections 4,2 from the concierge telephone to theentrance panel. Check the entrance panel volume. If you cannotfind the fault, there may be something wrong with the conciergetelephone or the entrance panel audio unit.You cannot hear the call confirmation in concierge.Check that you can hear the telephones in the dwellings.Check that the call tone rings on the telephones. If you cannotfind the fault, there may be something wrong with the conciergeaudio unit.You cannot pass the call from the main entrancepanel to the dwelling.Check that the entrance panel is defined as the main one (J1jumper installed). Check the connections between terminals17,18 between the concierge audio unit and the main panel.Check the connection of terminals 17,18 between the conciergeaudio unit and the concierge telephone push button. Checkthat the voltage between 17,18 on the audio unit with the pushbutton pressed down is 0 Vdc, if this is not the case, there maybe something wrong with the push button.The system entrance panels are not deactivatedwhen you call from concierge to the telephones orconcierge from telephones.Check connections 17,18 between the concierge panel andthe various entrance panels in the system. Check that the voltagebetween 17,2 on all the panels is 8 ±10% Vdc, when youcall from concierge or from the dwelling. If you cannot find thefault, there may be something wrong with the concierge audiounit.293