Conventional Systems Technical Manual - Alcad

INSTALLATION IN BUILDING WITH SEVERAL POINTS OF ENTRYHOUSING ESTATE WITH SEVERAL BUILDINGS. 1 EXTERNAL POINT OF ENTRY(GATE)Nothing works.Check the mains voltage in the power supply. Check that thevoltage between V~, of the power supply is 12 ± 10% Vac.Check wether there is a short circuit and fix it. Disconnect thepower supply for 1 minute and then connect it up again.If it still doesn't work, disconnect all the power supplyV~, terminals, and check that the voltage between V~, is12 ± 10% Vac, if it is not, then there may be something wrongwith the power supply.The card holders don't light up.Check that the voltage between V~, of the power supply is12 ± 10% Vac.Check that the voltage between 9,10 in the audiounit, with the lighting push button activated, is 12 ± 10%Vac.Check wether the lamp has burnt out.The lighting push button pilot does not light up.Check that the voltage between the V~, of the audio unit is12 ± 10% Vac. If the voltage is correct, there may be somethingwrong with the audio unit.The call tone doesn’t ring on any telephone.Check that the voltage between 8,2 in the call adaptor accessory,without pressing the push button, is 6 ± 10% Vdc. Checkthe connection between 8 in the call adaptor accessory and thepush buttons. Check connection 2 from the audio unit to the calladaptor accessory and the telephones. If you cannot find thefault, there may be something wrong with the call adaptor accessory.The call tone doesn’t ring in a telephone.Check connections 6,2 from the telephone to the call adaptoraccessory. Check the push-button connection on the entrancepanel. If you cannot find the fault, there may be something wrongwith telephone or the panel push-button.You cannot hear the call confirmation on the entrancepanel.Check that you can hear the telephones on the entrance panel.Check that the voltage between 7,2 in audio unit, without pressingthe push button, is 14.5 ± 10% Vdc. Check that the call tonerings on the telephones. If you cannot find the fault, there may besomething wrong with the audio unit.You cannot hear any telephones from the entrancepanel.Check connections 3,2 from the audio unit to all the telephones.Check the volume control on the panel. If you cannot findthe fault, there may be something wrong with the audio unit.You cannot hear a telephone from the entrancepanel.Check connections 3,2 from the telephone to the audio unit. Ifyou cannot find the fault, there may be something wrong with thetelephone.You cannot hear an entrance panel on any telephone.Check connections 4,2 from the audio unit to all the telephones.Check the volume control of the telephones on theentrance panel. If you cannot find the fault, there may be somethingwrong with the audio unit.You cannot hear the entrance panel on a telephone.Check connections 4,2 from the telephone to the audio unit.If you cannot find the fault, there may be something wrong withthe telephone.You can hear several entrance panels at the sametime on the telephones.Check that only one panel has been defined as the mainone. Make certain that connectors 17,18 on the entrancepanels are connected up. If you cannot find the fault, there maybe something wrong with the audio unit.You can hear whistling in the panel. The soundproduces feedback.Lower the sound level using the volume control on the audiounit.The electric lock doesn’t work.Check that the voltage between 1,2 in the audio unit, withoutpressing the lock release button, is 5 Vdc. Check that the voltagebetween 11,12 in the audio unit, when you press the lockrelease button, is 12 ± 10% Vac. If you cannot find the fault,the electric lock may be broken.The electric lock doesn't work unless someonepresses a push button.Check that at least one entrance panel has been defined asthe main one. If you cannot find the fault, there may be somethingwrong with the audio unit.Two electric locks work at the same timeCheck that at least one entrance panel has been defined asthe main one. Make certain that connectors 17,18 on theentrance panels are connected up. If you cannot find the fault,there may be something wrong with the audio units.When you call one of the panels the rest of thepanels in the system are not deactivated.Make certain that connectors 17,18 on the entrance panelsare connected up. If this is the case, make certain that connectors16,18 are connected up. Check that the voltage between17,18 in each one of the audio units is 8 Vdc when you pressthe push button on one of the panels. Check that when youpress the push button on one of the panels the voltage between16,18 is 4 Vdc. If you cannot find the fault, there may besomething wrong with the audio units.295