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Telex MCE325 Front Panel Assembly, 3 Reference AS6261 Drawing, Section, Item No, Description

Models: MCE325

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Front Panel Assembly (9020-6261-00)

Table 5.3 Reference AS6261 Drawing, Section 6

Item No.	Description	RTS Part No.

1	Bezel, MCE325	9070-6261-00

2	PC Board Assy, Front Panel, MCE325	9030-6246-00

3	Bushing Adapter	9110-6273-00

5	Keycap Stem	4501-0064-00

6	Knob, Channel Volume, MCE325	2703-0033-00

7	Knob, Program Volume, MCE325	2703-0034-00

8	Lightpipe, Button Indicator	4501-0061-00

9	Connector Insert, 6-pin Female (J2)	2018-0077-00

10	Plug, Panel Microphone	4501-0063-00

11	Lightpipe, Call Indicator	4501-0062-00

12	Screw, Thread Forming	51856-003

13	Connector Housing, 3-pin (P1)	59958-003

14	Phone Jack with Metal Bushing (J28)	2013-0048-00

15	Connector Housing, 6-pin (P2)	59958-006

16	Contact, Housing	59958-200

17	Flex Cable, 0.050” Centers	2515-0013-00

20	Keycap, Printed (TALK 1)	9150-6643-01

21	Keycap, Printed (LISTEN 1)	9150-6643-02

22	Keycap, Printed (TALK 2)	9150-6643-03

23	Keycap, Printed (LISTEN 2)	9150-6643-04

24	Keycap, Printed (CALL)	9150-6643-05

25	Keycap, Printed (PANEL MIC)	9150-6643-06

26	Keycap, Printed (SPKR ON)	9150-6643-07

27	Keycap, Printed (MIC ON)	9150-6643-08

5-2C S I - 2 0 0 U s e r I n s t r u c t i o n s

Image 54

Telex MCE325 manual Front Panel Assembly, 3 Reference AS6261 Drawing, Section, Item No, Description, RTS Part No

Contents

MODEL MCE325 USER INSTRUCTIONSPROGRAMMABLE USER STATION COPYRIGHT NOTICE WARRANTY INFORMATIONPROPRIETARY NOTICE UNPACKING AND INSPECTIONRETURN SHIPPING INSTRUCTIONS End-UserLicense Agreement for Telex Software TABLE OF CONTENTS Description & SpecificationsInstallation Maintenance OperationParts Lists DiagramsPage Description DESCRIPTION & SPECIFICATIONSFeatures GeneralConnections, Inputs and Outputs Front Panel FeaturesVolume Controls Channel Selector and Operation ButtonsRear Panel Features Intercom LinesExternal Program Input Auxiliary Connector PowerMounting Configuration ProgrammingMicrophone Preamplifier MCE325 SpecificationsPower and Mechanical Headphone AmplifierMCS325 Specifications ConnectorsFigure 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 General INSTALLATIONInternal Programming and Adjustments S E C T I O NDefault Setting Switch NumberSwitch Function Figure 2.1 Top cover removalJumper Number Table 2.2 Jumper functions and default settingsDefault Setting 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 Remote Talk-offDS7 Front Panel Setup Mode Lock-outDS4ISO DS5 VOX DS8Speaker Dim Adjustment R157 Mechanical InstallationHeadphone Sidetone Trimmer Adjustment R37 Program Assignment - IFB Option J4, J5, J16-J18Figure 2.3 Mounting configurations Connector Pin-outs Electrical InstallationAC Power and Fuse Four-wireOutput TerminationProgram Inputs, J14 and J15 Auxiliary Connector, J22Four-WireChannel A and B Input External Speaker, J27ISO Connection Remote Microphone SwitchKey outputs - Expanded IFB Option External HeadsetExternal DC Power Source Front Panel Headset ConnectionsUnswitched Microphone Output External Electret MicrophoneFUNCTION Table 2.9 Carbon-microphoneheadset connectorSECTION Carbon microphoneGeneral LED IndicatorsOPERATION Operating InstructionsPanel Mic/Headset Mic Selection Volume AdjustmentFront Panel Sidetone Nulling Trimmer Adjustment Microphone On/OffActivating Setup Mode Sending and Receiving Call SignalsUsing the Talk-OffFeature Menu Selection/Ending SetupChannel ID Call DisableLatch Disable Four-channelListenReset Instant Mic3-6 C S I - 2 0 0 U s e r I n s t r u c t i o n s Corrective Maintenance MAINTENANCEPreventive Maintenance AccessPower Supply Test Test and Adjustment ProceduresCleaning Test EquipmentInitial Configuration Keying Output TestFour-Channel, Two-WireMode Frequency Response and Level Check, Mic to LineSidetone Null Test and Adjustment Two-Channel, Four-WireModeTrue Sidetone Adjust Program A to Left Headphone Program to Speaker IFB TestProgram B to Right Headphone IFB BFour-WireA Input to Left Headphone Four-WireB input to Right HeadphoneIFB A VOX Test Panel Mic to Channel TestCarbon Mic to Channel Test Mic Kill Receive TestMic Kill Transmit Test Call Transmit TestCall Receive Test Program Lockout Test Remote Mic Switch TestISO Test Noise Checks15Turn all buttons off Page Final Assembly, MCE325 PARTS LISTSPackaging Assembly S E C T I O NItem No Front Panel AssemblyTable 5.3 Reference AS6261 Drawing, Section DescriptionMain PC Board Assembly Back Panel AssemblyHeatsink 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 Ref No PC Board Assembly, Front PanelTable 5.7 Reference AS6246 Drawing, Section DescriptionPage DIAGRAMS S E C T I O N6-2 C S I - 2 0 0 U s e r I n s t r u c t i o n s Date 7/23/01 Title D \TEMP\AS6246 01B.calTime 05 20 45 PM Title D \TEMP\AS6245 01D.cal Time 05 27 24 PMDate 7/23/01 Title D \TEMP\AS6261 01C.cal Time 05 21 25 PMDate 7/23/01 Title D \TEMP\AS6262 01C.cal Time 05 22 16 PMDate 7/23/01 Date 7/19/01 Time 02 05 07 PMTitle C \home\cms\benedil\view\9020-6324 01.DWG Title D \TEMP\AS6464 01G.dwg Time 05 23 05 PMDate 7/23/01 Title D \TEMP\BD6464 01A.cal Time 05 23 33 PMDate 7/23/01 Title D \TEMP\IS6718 01A.cal Time 05 24 13 PMDate 7/23/01 Title D \TEMP\OD6355 01A.cal Time 05 24 51 PMDate 7/23/01 Title D \TEMP\OD6355 02A.cal Time 05 25 30 PMDate 7/23/01 Title D \TEMP\OD6355 03A.cal Time 05 26 07 PMDate 7/23/01 Title D \TEMP\OD6355 04A.cal Time 05 26 42 PMDate 7/23/01 Title c \home\cms\benedil\view\9000-6464 01.CAL Time 05 03 09 PMDate 7/23/01 MCE325 SCHEMATIC DIAGRAMMOTHERBOARD 9027624501MCE325 MOTHER BOARD9027624501 TitleTitle MOTHER BOARD MCE3259027624501 DWG. NOTitle D \TEMP\SD6246 01A.cal Time 05 19 08 PMDate 7/23/01