Telex MCE325 manual Back Panel Assembly, Heatsink Assembly, Main PC Board Assembly

Page 55

Back Panel Assembly (9020-6262-00)

Table 5.4 Reference AS6262 Drawing, Section 6

Item No.

Description

RTS Part No.

 

 

 

1

PC Board Assy, Main

9030-6245-00

 

 

 

2

Heatsink Assy

9020-6324-00

 

 

 

3

Panel, Rear

9080-6262-00

 

 

 

4

Jack, Phone, 3 conductor, double closed circuit (J27)

2013-0003-00

 

 

 

5

Connector Housing (P23)

57767-203

 

 

 

6

cord, AC Power, Gray

2504-0004-00

 

 

 

7

Strain Relief, Flexible

2509-0025-00

 

 

 

8

Fuse, 0.5A, 250V Slo-blo

50547-015

 

 

 

9

Fuse Cap

57074-006

 

 

 

10

Fuse Holder body w/mtg Nut

2802-0003-00

 

 

 

11

Terminal, Wire Joint, Nylong

2017-0013-00

 

 

 

12

Screw, #4-40 x ¼

1008-4023-00

 

 

 

13

Nut, Hex Kep, #4-40

1007-0001-00

 

 

 

15

Nut, Hex Kep, #4-40

1007-0002-00

 

 

 

16

Lug, Solder, #16

51378-002

 

 

 

17

Shrink Tubing

LP

 

 

 

Heatsink Assembly (9020-6324-00)

Table 5.5 Reference 9020-6324-00 Drawing, Section 6

Item No.

Description

RTS Part No.

 

 

 

1

Heatsink, Model MCE325

9180-6324-01

 

 

 

2

IC LM4752T

511386000S

 

 

 

3

Adj. Regulatro, 3 Terminal, LM317T

53290000

 

 

 

4

Insulator

57896000

 

 

 

5

Washer, Nylon Shoulder

1006004000

 

 

 

6

Washer

50013035

 

 

 

7

Washer, Compression

1006004100

 

 

 

8

Screw PH, Cross

51845040

 

 

 

9

Thermal Compound

51741000

 

 

 

Main PC Board Assembly (9030-6245-01)

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

Ref No.

Description

RTS Part No.

 

 

 

C1

Capacitor, EL, 100µF, 25V

51821524

 

 

 

C10

Capacitor, CM, 0.1µF, 50V

52676113

 

 

 

C100

Capacitor, Mylar, 1nF, 100V

1514R1022L

 

 

 

C101

Capacitor, CM, 0.1µF, 50V

52676113

 

 

 

C102

Capacitor, CM, 0.1µF, 50V

52676113

 

 

 

C103

Capacitor, EL, 10µF, 50V

51821110

 

 

 

5-3

Image 55
Contents Model MCE325 Proprietary Notice Return Shipping Instructions End-User License Agreement for Telex Software Table of Contents Operation Diagrams Page Description FeaturesGeneral Connections, Inputs and Outputs Front Panel FeaturesIntercom Lines Rear Panel FeaturesMounting Configuration PowerProgramming Headphone Amplifier MCE325 SpecificationsPower and Mechanical Microphone PreamplifierConnectors MCS325 SpecificationsStandard four-channel, two-wire configuration Standard two-channel, four wire configuration Page 10M C E 3 2 5 U s e r I n s t r u c t i o n s 11 MCE325 button configurations 12M 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 InstallationSwitch Number Switch Function Default Setting Jumper Number Jumper Function Default Setting Internal DIP switches, jumpers and level trimmers Remote Talk-off DS7 Front Panel Setup Mode Lock-out DS4Program Assignment IFB Option J4, J5, J16-J18 Mechanical InstallationHeadphone Sidetone Trimmer Adjustment R37 Speaker Dim Adjustment R157Mounting configurations AC Power and Fuse Electrical InstallationIntercom Lines J8, J9, and J10 External Speaker, J27 Auxiliary Connector, J22Four-Wire Channel a and B Input Program Inputs, J14 and J15External Headset Remote Microphone SwitchKey outputs Expanded IFB Option ISO ConnectionFront Panel Headset Connections Carbon-microphone headset connector Momentary/Latching Button action LED IndicatorsGeneral Operating InstructionsMicrophone On/Off Volume AdjustmentFront Panel Sidetone Nulling Trimmer Adjustment Panel Mic/Headset Mic SelectionFront Panel Programming Four-channel Listen Call DisableLatch Disable Channel IDInstant Mic Reset6C S I 2 0 0 U s e r I n s t r u c t i o n s Factory Support Information Preventive MaintenanceCorrective Maintenance AccessTest Equipment Test and Adjustment ProceduresCleaning Power Supply TestKeying Output Test Initial ConfigurationFrequency Response and Level Check, Mic to Line Four-Channel, Two-Wire ModeTwo-Channel, Four-Wire Mode Sidetone Null Test and AdjustmentTalk Button Test Point Potentiometer True Sidetone AdjustProgram a to Left Headphone Program B to Right Headphone IFB TestProgram to Speaker Four-Wire B input to Right Headphone Four-Wire a Input to Left HeadphoneMic 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 TestPage 14C S I 2 0 0 U s e r I n s t r u c t i o n s Final Assembly, MCE325 Packaging AssemblyFront Panel Assembly Heatsink Assembly Back Panel AssemblyMain PC Board Assembly 4C S I 2 0 0 U s e r I n s t r u c t i o n s Reference 9027-6245-01 Drawing, Section CR1 FB1 #73 Shield Bead 8C S I 2 0 0 U s e r I n s t r u c t i o n s Reference 9027-6245-01 Drawing, Section 10C S I 2 0 0 U s e r I n s t r u c t i o n s RP2 Washer Flat DS1-DS8 PC Board Assembly, Front Panel14C S I 2 0 0 U s e r I n s t r u c t i o n s Diagrams 2C 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\AS624501D.cal Title D\TEMP\AS626101C.cal Title D\TEMP\AS626201C.cal Date 7/19/01 Title D\TEMP\AS646401G.dwg Title D\TEMP\BD646401A.cal Title D\TEMP\IS671801A.cal Title D\TEMP\OD635501A.cal Title D\TEMP\OD635502A.cal Title D\TEMP\OD635503A.cal Title D\TEMP\OD635504A.cal Title c\home\cms\benedil\view\9000-646401.CAL Telex Mother Board Mother Board MCE325 Title D\TEMP\SD624601A.cal

MCE325 specifications

The Telex MCE325 is a sophisticated communications headset designed primarily for professionals who demand clarity and reliability in their audio equipment. Renowned for its advanced features and high-quality construction, the MCE325 is a popular choice in various fields, including aviation, broadcast, and live event production.

One of the standout features of the Telex MCE325 is its superior noise-cancellation technology. This headset is engineered to effectively reduce ambient noise, allowing users to focus on important audio signals without distractions. The exceptional passive noise isolation works in tandem with the active noise-cancelling capabilities to ensure that you can communicate clearly, even in loud environments.

The MCE325 also incorporates a high-performance microphone that delivers crystal-clear sound transmission. The flexible boom design allows users to position the microphone for optimal voice pickup, making it suitable for both left- and right-handed users. The microphone’s windscreen further minimizes wind noise, providing an extra layer of clarity during outdoor use.

Comfort is a critical aspect of the MCE325. The headset features plush, padded ear cups that provide excellent comfort for extended use. The adjustable headband ensures a secure fit, catering to a wide range of head sizes and shapes. This ergonomic design minimizes fatigue, allowing users to maintain focus during long hours of operation.

Connectivity is another area where the Telex MCE325 excels. It is versatile enough to work with various devices, thanks to its dual 1/4” and XLR connectors. This flexibility makes it compatible with many audio interfaces and communication systems used in professional settings. The headset also includes a detachable cable, allowing for easy replacement if needed.

The construction of the Telex MCE325 reflects a commitment to durability and longevity. Built with high-quality materials, the headset can withstand the rigors of demanding professional environments. This robustness ensures that users can trust the MCE325 in the most challenging situations, whether it’s in a busy studio or a bustling airport.

In summary, the Telex MCE325 is a versatile and reliable headset designed to meet the needs of professionals across various industries. With its cutting-edge noise-cancellation technology, high-quality microphone, comfort-focused design, versatile connectivity options, and durable construction, it stands out as an ideal choice for anyone seeking superior audio performance and reliability. Whether in communications, aviation, or live broadcasting, the MCE325 delivers an exceptional audio experience.