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Telex MCE325 manual R170

Models: MCE325

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Table 5.6 Reference 9027-6245-01 Drawing, Section 6

R170	Resistor, CF, 10K Ohm, 5%, 1/8W	52154036

R171	Resistor, CF, 10K Ohm, 5%, 1/8W	52154036

R172	Resistor, MF, 201 Ohm, 1%, 1/8W	54032301

R173	Resistor, CF, 100K Ohm, 5% 1/8W	52154012

R174	Resistor, MF, 201 Ohm, 1%, 1/8W	54032301

R175	Resistor, CF, 100K Ohm, 5% 1/8W	52154012

R176	Resistor, CF, 22K Ohm, 5%, 1/8W	524154028

R177	Resistor, CF, 100K Ohm, 5% 1/8W	52154012

R178	Resistor, CF, 1M Ohm, 5%, 1/8W	52154988

R18	Resistor, CF, 100 Ohm, 5%, 1/4W	52154305

R180	Resistor, CF, 1K Ohm, 5%, 1/8W	52154060

R181	Resistor, CF, 2.7 Ohm, 5%, 1/8W	52154122

R182	Resistor, CF, 22K Ohm, 5%, 1/8W	524154028

R183	Resistor, CF, 10 Ohm, 5%, 1/8W	52154108

R184	Resistor, CF, 22K Ohm, 5%, 1/8W	524154028

R185	Resistor, CF, 100K Ohm, 5% 1/8W	52154012

R186	Resistor, CF, 1K Ohm, 5%, 1/8W	52154060

R187	Resistor, CF, 2.7 Ohm, 5%, 1/8W	52154122

R188	Resistor, CF, 22K Ohm, 5%, 1/8W	524154028

R189	Resistor, CF, 10 Ohm, 5%, 1/8W	52154108

R19	Resistor, CF, 620 Ohm, 5%, 1/8W	52154065

R198	Resistor, CF, 270K Ohm, 5%, 1/8W	52154002

R199	Resistor, CF, 10K Ohm, 5%, 1/8W	52154036

R2	Resistor, Cf, 2K Ohm, 5%, 1/8W	52154053

R20	Resistor, CF, 100K Ohm, 5% 1/8W	52154012

R200	Resistor, CF, 2.2M Ohm, 5%, 1/8W	52154980

R201	Resistor, MF, 3.01K Ohm, 1%, 1/8W	54034301

R207	Resistor, CF, 100K Ohm, 5% 1/8W	52154012

R208	Resistor, CF, 10K Ohm, 5%, 1/8W	52154036

R209	Resistor, CF, 1K Ohm, 5%, 1/8W	52154060

R21	Resistor, CF, 47K Ohm, 5%, 1/8W	52154020

R211	Resistor, CF, 22K Ohm, 5%, 1/8W	524154028

R212	Resistor, CF, 270K Ohm, 5%, 1/8W	52154002

R213	Resistor, CF, 270K Ohm, 5%, 1/8W	52154002

R214	Resistor, CF, 10K Ohm, 5%, 1/8W	52154036

R215	Resistor, CF, 100K Ohm, 5% 1/8W	52154012

R22	Resistor, CF, 22K Ohm, 5%, 1/8W	524154028

R23	Resistor, CF, 22K Ohm, 5%, 1/8W	524154028

R24	Resistor, CF, 100K Ohm, 5% 1/8W	52154012

R26	Resistor, CF, 5.1M Ohm, 5%, 1/8W	52154698

R261	Resistor, CF, 22K Ohm, 5%, 1/8W	524154028

R262	Resistor, MF, 3.01K Ohm, 1%, 1/8W	54034301

R263	Resistor, MF, 201 Ohm, 1%, 1/8W	54032301

R264	Resistor, CF, 220K Ohm, 5%, 1/8W	52154004

R265	Resistor, CF, 220K Ohm, 5%, 1/8W	52154004

R266	Resistor, MF, 909 Ohm, 1%, 1/8W	54032909

5-9

Image 61

Telex MCE325 manual R170

Contents

USER INSTRUCTIONS MODEL MCE325PROGRAMMABLE USER STATION PROPRIETARY NOTICE WARRANTY INFORMATIONCOPYRIGHT NOTICE UNPACKING AND INSPECTIONRETURN SHIPPING INSTRUCTIONS End-UserLicense Agreement for Telex Software Description & Specifications TABLE OF CONTENTSInstallation Operation MaintenanceDiagrams Parts ListsPage Features DESCRIPTION & SPECIFICATIONSDescription GeneralVolume Controls Front Panel FeaturesConnections, Inputs and Outputs Channel Selector and Operation ButtonsIntercom Lines Rear Panel FeaturesExternal Program Input Mounting Configuration PowerAuxiliary Connector ProgrammingPower and Mechanical MCE325 SpecificationsMicrophone Preamplifier Headphone AmplifierConnectors 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 Internal Programming and Adjustments INSTALLATIONGeneral S E C T I O NSwitch Function Switch NumberDefault Setting Figure 2.1 Top cover removalDefault Setting Table 2.2 Jumper functions and default settingsJumper Number Jumper Function2-4 C S I - 2 0 0 U s e r I n s t r u c t i o n s ISO DS5 Front Panel Setup Mode Lock-outDS4Remote Talk-offDS7 VOX DS8Headphone Sidetone Trimmer Adjustment R37 Mechanical InstallationSpeaker Dim Adjustment R157 Program Assignment - IFB Option J4, J5, J16-J18Figure 2.3 Mounting configurations AC Power and Fuse Electrical InstallationConnector Pin-outs Four-wireOutput TerminationFour-WireChannel A and B Input Auxiliary Connector, J22Program Inputs, J14 and J15 External Speaker, J27Key outputs - Expanded IFB Option Remote Microphone SwitchISO Connection External HeadsetUnswitched Microphone Output Front Panel Headset ConnectionsExternal DC Power Source External Electret MicrophoneSECTION Table 2.9 Carbon-microphoneheadset connectorFUNCTION Carbon microphoneOPERATION LED IndicatorsGeneral Operating InstructionsFront Panel Sidetone Nulling Trimmer Adjustment Volume AdjustmentPanel Mic/Headset Mic Selection Microphone On/OffUsing the Talk-OffFeature Sending and Receiving Call SignalsActivating Setup Mode Menu Selection/Ending SetupLatch Disable Call DisableChannel ID Four-channelListenInstant 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 Preventive Maintenance MAINTENANCECorrective Maintenance AccessCleaning Test and Adjustment ProceduresPower Supply Test Test EquipmentKeying 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 Program B to Right Headphone IFB TestProgram to Speaker IFB BFour-WireB input to Right Headphone Four-WireA Input to Left HeadphoneIFB A Carbon Mic to Channel Test Panel Mic to Channel TestVOX Test Mic Kill Receive TestCall Transmit Test Mic Kill Transmit TestCall Receive Test ISO Test Remote Mic Switch TestProgram Lockout Test Noise Checks15Turn all buttons off Page Packaging Assembly PARTS LISTSFinal Assembly, MCE325 S E C T I O NTable 5.3 Reference AS6261 Drawing, Section Front Panel AssemblyItem No DescriptionHeatsink Assembly Back Panel AssemblyMain PC Board Assembly Item NoC104 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 Table 5.7 Reference AS6246 Drawing, Section PC Board Assembly, Front PanelRef No DescriptionPage 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 MOTHERBOARD SCHEMATIC DIAGRAMMCE325 90276245019027624501 MOTHER BOARDMCE325 Title9027624501 MOTHER BOARD MCE325Title DWG. NOTime 05 19 08 PM Title D \TEMP\SD6246 01A.calDate 7/23/01