HME Clear-Com RM-704 Скачать руководство пользователя страница 33

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M S - 7 0 4 / R M - 7 0 4 F O U R - C H A N N E L M A I N / R E M O T E

3 - 1

MAINTENANCE

INTRODUCTION

This chapter provides maintenance information, including a block diagram and troubleshooting tips.

Caution: These servicing instructions are for use by qualified personnel only. To reduce the risk of electrical

shock, do not perform any servicing other than that contained in the operating instructions unless you
are qualified to do so.

MS-704 BLOCK DIAGRAM

Содержание Clear-Com RM-704

Страница 1: ...MS 704 FOUR CHANNEL MAIN STATION CLEAR COM ENCORE I N S T R U C T I O N M A N U A L RM 704 FOUR CHANNEL REMOTE STATION...

Страница 2: ...reverse engineering No part of this document may be reproduced in any form by any means without prior written authorization of Clear Com an HME Company Clear Com Offices are located in California USA...

Страница 3: ...ptions 1 7 Hidden Adjustment Controls 1 8 Rear Panel Options 1 9 Intercom Line Termination MS 704 1 9 Short Circuit and and Overload Conditions 1 9 Summary of Front Panel Lights 1 10 INSTALLATION 2 1...

Страница 4: ...t Jumper 2 12 MAINTENANCE 3 1 Introduction 3 1 MS 704 Block Diagram 3 1 RM 704 Block Diagram 3 2 TECHNICAL SPECIFICATIONS 4 1 MS 704 RM 704 Four Channel Stations 4 1 LIMITED WARRANTY 5 I Warranty Peri...

Страница 5: ...oint where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold...

Страница 6: ...60065 7 Safety requirements And thereby compliance with the requirement of Electromagnetic Compatibility Directive 2004 108 EC and Low Voltage Directive 2006 95 EC This device complies with Part 15 of...

Страница 7: ...rious single or multi channel remote stations such as beltpacks and loudspeaker stations Clear Com manufactures a wide variety of both portable and fixed installation units All are compatible with eac...

Страница 8: ...A Auto Call Speaker On Off Volume Channel D Channel C Channel B Channel A Talk Listen Call Talk Listen Call Talk Listen Call Announce All Talk Link On Mic Select Panel Headset Mic On Panel Mic On Off...

Страница 9: ...n monitoring and program feed to intercom lines for local talent cuing IFB INTERNAL IFB IFB Interrupt Foldback of program feeds Program can be fed to each channel and interrupted IFB when a talk funct...

Страница 10: ...ot bring the whole system down Short circuit indicators are provided on the front panel for each channel HEADSET AUDIO LIMITER The headset audio limiter restricts the maximum audio level heard in the...

Страница 11: ...le short or overload The other channels continue to operate normally The MS 704 s advanced fail safe circuit will bring the power back up even under full load conditions Front panel lights indicate a...

Страница 12: ...ssed momentary only This button lights amber when pressed Monitoring Main Program The main program input is the one on the XLR connector on the rear panel To listen to the main program in the speaker...

Страница 13: ...the system Pressing the button momentarily interrupts power to the other beltpacks and stations in the system If there are other power supplies or main stations in the system then the remote mic kill...

Страница 14: ...mum gain position fully counter clockwise This level matches the headset microphone level when the panel microphone is worked up close Raising the gain from the factory setting should be done carefull...

Страница 15: ...minating networks available If more than one MS 704 or any other master station is installed on the same intercom line then all of the terminations in all of the stations except one must be disabled C...

Страница 16: ...tton to on quickly press it once The button is locked to on for hands free use Pressing the button again releases the latch Otherwise when you press and hold Key On State Off State Momentary or Latchi...

Страница 17: ...S 7 0 4 R M 7 0 4 F O U R C H A N N E L M A I N R E M O T E S T A T I O N S 1 1 1 a button the feature switches on and when you release the button the feature switches off This is called momentary us...

Страница 18: ...M S 7 0 4 R M 7 0 4 F O U R C H A N N E L M A I N R E M O T E S T A T I O N S 1 1 2...

Страница 19: ...be terminated to keep the line drive circuits stable The MS 704 provides switchable terminations of the intercom lines Clear Com main stations and power supplies provide switch selectable termination...

Страница 20: ...channel An overload lasting a short period will not cause the power supply to interrupt power AUTOMATIC POWER RESTORE The MS 704 s internal power supply senses the difference between short term and lo...

Страница 21: ...during overloads and short circuits to restore power as quickly as possible MULTI CHANNEL REMOTE STATIONS MAINTAIN THE POWER LINE ISOLATION Internal jumpers in the RM 704 allow you to select non isola...

Страница 22: ...allow you to defeat the power channel isolation of the unit as described in the following procedure To connect two or more RM 704 channels together 1 Please observe anti static procedures The circuit...

Страница 23: ...ng upon how many shorts or overloads a channel has experienced recently the MS 704 will attempt to turn power on again within 0 5 to 20 seconds of automatically cutting off power to an overloaded chan...

Страница 24: ...nd 1 DC resistance of the ground or common conductor affects crosstalk For runs longer than 500 ft 152 5 m do not use wire smaller than 20 gauge 2 The capacitance of the interconnect cable affects sys...

Страница 25: ...nector must also be isolated from the chassis Pin 1 should not be connected to the shell of the XLR connector Figure 2 8 Interconnect Cable Detail Note The remote stations connected to each channel ar...

Страница 26: ...technical specifications for details Wiring Pin 1 Mic common Pin 2 Mic hot Pin 3 Headphone common Pin 4 Headphone hot CAUTION Do not tie pin 1 and pin 3 together PANEL MIC CONNECTOR FRONT PANEL Two p...

Страница 27: ...RM 704 has a male and female pair of XLR 3 connectors for each intercom line The male female connectors are wired in parallel and intended for loop through connection The pinout of the intercom conne...

Страница 28: ...ry connector for instructions on connecting to the relay contacts The pinout of the announce output connector is as follows Pin 1 Ground shield Pin 2 Signal Pin 3 Signal IFB HOT MIC REAR PANEL 1 4 INC...

Страница 29: ...option DIP switch and a talk is active on that channel These inputs are electronically balanced with a high input impedance Refer to the illustration above for connection of the program inputs Pins 5...

Страница 30: ...ll is received on the channel on which the interrupt has been enabled the program will be interrupted for the duration of the call signal on that channel To cause an interrupt of the program from this...

Страница 31: ...M S 7 0 4 R M 7 0 4 F O U R C H A N N E L M A I N R E M O T E 2 1 3...

Страница 32: ...M S 7 0 4 R M 7 0 4 F O U R C H A N N E L M A I N R E M O T E 2 1 4...

Страница 33: ...ce information including a block diagram and troubleshooting tips Caution These servicing instructions are for use by qualified personnel only To reduce the risk of electrical shock do not perform any...

Страница 34: ...M S 7 0 4 R M 7 0 4 F O U R C H A N N E L M A I N R E M O T E S T A T I O N S 3 2 Figure 3 11 MS 704 Block Diagram RM 704 BLOCK DIAGRAM...

Страница 35: ...M S 7 0 4 R M 7 0 4 F O U R C H A N N E L M A I N R E M O T E S T A T I O N S 3 3 Figure 3 12 RM 704 Block Diagram...

Страница 36: ...M S 7 0 4 R M 7 0 4 F O U R C H A N N E L M A I N R E M O T E S T A T I O N S 3 4...

Страница 37: ...put Impedance 1K Mic Limiter Threshold 0dBu 3dB Mic Limiter Range 17dB Program Line Input Maximum Level before Clipping 20dBu Input Impedance 5K Headset Output Load Impedance 8 Output Impedance 25 Out...

Страница 38: ...5 Headset Mic Party Line 0 5 Headset Mic Line Out 0 5 Program Input Party Line 0 2 Program Input Headset Out 0 2 Program Input Speaker Out 0 5 Party Line Headset Out 0 2 Party Line Speaker Out 0 5 No...

Страница 39: ...nnel Beltpacks 10 speaker stations or 12 headset stations distributed over all channels DC Power RM 704 Input Voltage Range 20 30 VDC Input Current Idle 165 mA Input Current Max 195 mA Rear Panel Conn...

Страница 40: ...me control 4 Short LEDs 1 Panel mic gain control 1 Sidetone adjust control 1 Headset audio limiter DIP switch 3 Interrupt enable DIP switches 4 Auto call DIP switches 4 Auto talk listen DIP switches 4...

Страница 41: ...704 RM 704 19 in W x 3 5 in H x 10 5 in D 483 mm x 88 mm x 267 mm Weight MS 704 10 86lbs 4 94 kg RM 704 10 07lbs 4 58kg Notice About Specifications While Clear Com makes every attempt to maintain the...

Страница 42: ...M S 7 0 4 R M 7 0 4 F O U R C H A N N E L M A I N R E 4 6...

Страница 43: ...ones and spare parts have a limited warranty of one year UHF wireless IFB products have a limited warranty of one year UHF wireless intercom systems have a limited warranty of three years All other Cl...

Страница 44: ...el 8610 65811360 65815577 Once the standard warranty period has expired the User Support Center will continue to provide telephone support if you have purchased an Extended Warranty or Service Contrac...

Страница 45: ...ndard two year warranty The total warranty period will not extend beyond five years Any purchase of an extended warranty provides 24 x 7 customer support in addition to the warranty immediately upon p...

Страница 46: ...rranty does not cover any defect malfunction or failure caused beyond the control of Clear Com including unreasonable or negligent operation abuse accident failure to follow instructions in the manual...

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