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Telex MCE325 manual Diagrams, S E C T I O N

Models: MCE325

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DIAGRAMS

S E C T I O N

DIAGRAMS

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Telex MCE325 manual Diagrams, S E C T I O N

Contents

USER INSTRUCTIONS MODEL MCE325PROGRAMMABLE USER STATION UNPACKING AND INSPECTION WARRANTY INFORMATIONPROPRIETARY NOTICE COPYRIGHT NOTICERETURN SHIPPING INSTRUCTIONS End-UserLicense Agreement for Telex Software Description & Specifications TABLE OF CONTENTSInstallation Operation MaintenanceDiagrams Parts ListsPage General DESCRIPTION & SPECIFICATIONSFeatures DescriptionChannel Selector and Operation Buttons Front Panel FeaturesVolume Controls Connections, Inputs and OutputsIntercom Lines Rear Panel FeaturesExternal Program Input Programming PowerMounting Configuration Auxiliary ConnectorHeadphone Amplifier MCE325 SpecificationsPower and Mechanical Microphone PreamplifierConnectors MCS325 SpecificationsFigure 1.3 Standard four-channel, two-wireconfiguration 1-8 M C E 3 2 5 U s e r I n s t r u c t i o n s Figure 1.8 Multiple interconnected stations using one four-wireintercom channel and two two-wirechannels for IFB’s 1-10 M C E 3 2 5 U s e r I n s t r u c t i o n s Figure 1.11 MCE325 button configurations 1-12 M C E 3 2 5 U s e r I n s t r u c t i o n s S E C T I O N INSTALLATIONInternal Programming and Adjustments GeneralFigure 2.1 Top cover removal Switch NumberSwitch Function Default SettingJumper Function Table 2.2 Jumper functions and default settingsDefault Setting Jumper Number2-4 C S I - 2 0 0 U s e r I n s t r u c t i o n s VOX DS8 Front Panel Setup Mode Lock-outDS4ISO DS5 Remote Talk-offDS7Program Assignment - IFB Option J4, J5, J16-J18 Mechanical InstallationHeadphone Sidetone Trimmer Adjustment R37 Speaker Dim Adjustment R157Figure 2.3 Mounting configurations Four-wireOutput Termination Electrical InstallationAC Power and Fuse Connector Pin-outsExternal Speaker, J27 Auxiliary Connector, J22Four-WireChannel A and B Input Program Inputs, J14 and J15External Headset Remote Microphone SwitchKey outputs - Expanded IFB Option ISO ConnectionExternal Electret Microphone Front Panel Headset ConnectionsUnswitched Microphone Output External DC Power SourceCarbon microphone Table 2.9 Carbon-microphoneheadset connectorSECTION FUNCTIONOperating Instructions LED IndicatorsOPERATION GeneralMicrophone On/Off Volume AdjustmentFront Panel Sidetone Nulling Trimmer Adjustment Panel Mic/Headset Mic SelectionMenu Selection/Ending Setup Sending and Receiving Call SignalsUsing the Talk-OffFeature Activating Setup ModeFour-channelListen Call DisableLatch Disable Channel IDInstant Mic Reset3-6 C S I - 2 0 0 U s e r I n s t r u c t i o n s Access MAINTENANCEPreventive Maintenance Corrective MaintenanceTest Equipment Test and Adjustment ProceduresCleaning Power Supply TestKeying Output Test Initial ConfigurationFrequency Response and Level Check, Mic to Line Four-Channel, Two-WireModeTwo-Channel, Four-WireMode Sidetone Null Test and AdjustmentTrue Sidetone Adjust Program A to Left Headphone IFB B IFB TestProgram B to Right Headphone Program to SpeakerFour-WireB input to Right Headphone Four-WireA Input to Left HeadphoneIFB A Mic Kill Receive Test Panel Mic to Channel TestCarbon Mic to Channel Test VOX TestCall Transmit Test Mic Kill Transmit TestCall Receive Test Noise Checks Remote Mic Switch TestISO Test Program Lockout Test15Turn all buttons off Page S E C T I O N PARTS LISTSPackaging Assembly Final Assembly, MCE325Description Front Panel AssemblyTable 5.3 Reference AS6261 Drawing, Section Item NoItem No Back Panel AssemblyHeatsink Assembly Main PC Board AssemblyC104 Capacitor, EL, 10µF Capacitor, Mylar, 1nF Diode, 1N4004 Transistor, 2N5210 R170 R267 Resistor, CF, 22K Ohm, 5%, 1/8W IC, Dual Low-noise Op-Amp,NE5532N Description PC Board Assembly, Front PanelTable 5.7 Reference AS6246 Drawing, Section Ref NoPage S E C T I O N DIAGRAMS6-2 C S I - 2 0 0 U s e r I n s t r u c t i o n s Title D \TEMP\AS6246 01B.cal Date 7/23/01Time 05 20 45 PM Time 05 27 24 PM Title D \TEMP\AS6245 01D.calDate 7/23/01 Time 05 21 25 PM Title D \TEMP\AS6261 01C.calDate 7/23/01 Time 05 22 16 PM Title D \TEMP\AS6262 01C.calDate 7/23/01 Time 02 05 07 PM Date 7/19/01Title C \home\cms\benedil\view\9020-6324 01.DWG Time 05 23 05 PM Title D \TEMP\AS6464 01G.dwgDate 7/23/01 Time 05 23 33 PM Title D \TEMP\BD6464 01A.calDate 7/23/01 Time 05 24 13 PM Title D \TEMP\IS6718 01A.calDate 7/23/01 Time 05 24 51 PM Title D \TEMP\OD6355 01A.calDate 7/23/01 Time 05 25 30 PM Title D \TEMP\OD6355 02A.calDate 7/23/01 Time 05 26 07 PM Title D \TEMP\OD6355 03A.calDate 7/23/01 Time 05 26 42 PM Title D \TEMP\OD6355 04A.calDate 7/23/01 Time 05 03 09 PM Title c \home\cms\benedil\view\9000-6464 01.CALDate 7/23/01 9027624501 SCHEMATIC DIAGRAMMOTHERBOARD MCE325Title MOTHER BOARD9027624501 MCE325DWG. NO MOTHER BOARD MCE3259027624501 TitleTime 05 19 08 PM Title D \TEMP\SD6246 01A.calDate 7/23/01