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MRC DRS4000, Руководство пользователя и техническое руководство

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3

 Troubleshooting

3-1

DRS4000 Receiver

 User and Technical Manual

Troubleshooting

3.1

Chapter Overview

This chapter provides troubleshooting procedures for technical 
problems that an operator may encounter. The problems are 
organized into the following categories: video, audio, and 
general system. 

For each component, a problem-cause-action table states one or 
more possible causes. For each possible cause, the table 
provides one or more suggested actions that you can use. 
Perform the suggested actions until you either fix the problem or 
determine that you need technical support from MRC. 

The following troubleshooting topics are discussed. Whenever 
the suggested action requires more than a few steps, a link takes 
you to a separate procedure. 

Topic

Page

Video Problems

3-2

Audio Problems

3-4

General System Problems

3-5

Содержание DRS4000

Страница 1: ...User and Technical Manual DRS4000 Receiver Manual Part No 400545 1 Rev A March 2009 RF Low Latency HD Diversity Receiver...

Страница 2: ......

Страница 3: ...et Explorer are registered trademarks of Microsoft Corporation in the United States and or other countries Proprietary Material The information and design contained within this manual was originated b...

Страница 4: ...tatic Discharge Possible Damage to Equipment OR Fuse Identifies fuses or their location Frame or Chassis Ground Identifies the frame or chassis terminal Earth Ground Identifies the earth ground termin...

Страница 5: ...ns 1 7 Power Options 1 8 Decryption Options 1 8 Packet Switching Option 1 8 Routine Operation 2 1 Chapter Overview 2 1 Controls Indicators and Connectors 2 2 Front Panel Controls Indicators and Connec...

Страница 6: ...2 34 Remote Operation 2 34 Common Features 2 34 Connect to the Web Browser 2 34 Perform Status Monitor 2 35 Change RF Demodulator and Packet Switch Configuration Settings 2 36 Change Decoder General...

Страница 7: ...difications 4 13 Replacement Parts 5 1 Chapter Overview 5 1 Replacement Parts 5 1 Supported Repairs 5 1 Theory of Operation 6 1 System Architecture 6 1 Block Downconverters 6 1 RF Switching Module 6 3...

Страница 8: ...Contents 4 DRS4000 Receiver User and Technical Manual...

Страница 9: ...ed on a label on the bottom of each unit Approximate purchase date Firmware revisions depending upon the options in your receiver which appear on the control panel To access this information Go to the...

Страница 10: ...to tell us what product you are writing about and the title of the manual Feedback 1 6 System Description The DRS4000 Receiver system DRS4000 is a high performance cost effective COFDM receiver suitab...

Страница 11: ...ucting an optimized signal from one or more of the signals High quality 75 ohm coaxial cable RG6 or RG11 should be used to connect the receiver to the downconverters The COFDM demodulator and SD HD MP...

Страница 12: ...Scan II Sector RX Antennas High Gain Steerable BDC Support 2 3 5 or 7 GHz SD Video Audio Output Dual ASI Outputs To Backhaul or L2014 SD Video Audio Output MRX4000 SDI Outputs SD HD ASI Output to Back...

Страница 13: ...ions on page 1 6 for additional information 1 9 Firmware Components The DRS4000 Receiver is controlled by software installed on programmable read only memory PROM You can access this firmware via the...

Страница 14: ...LMS T Bandwidth is 10 or 20 MHz selectable QPSK 16QAM or 64QAM modulation 1 13 Applications The DRS4000 Receiver has several applications Electronic News Gathering ENG Central receive sites Outside Br...

Страница 15: ...SDI Output Four analog audio channels AES EBU digital audio ASI output 1 15 3 Antenna Options To take advantage of diversity combining you need to select either 2 or 4 antennas MRC works with you to s...

Страница 16: ...ich can be 100 to 260 VAC at 50 to 60 Hz A 3 prong power cable is included The rear power connector includes a removable fuse holder with a pair of 2 amp glass fuses 1 15 7 Decryption Options The rece...

Страница 17: ...2 12 Select Audio Output 2 12 Select Polarity 2 13 Select a New Preset 2 13 Setup Menu Operations 2 13 Review Hardware Configurations 2 14 Select RF Switch Matrix 2 14 Select IP and MAC Addresses 2 15...

Страница 18: ...Remote Operation 2 34 Common Features 2 34 Connect to the Web Browser 2 34 Perform Status Monitor 2 35 Change RF Demodulator and Packet Switch Configuration Settings 2 36 Change Decoder General Setti...

Страница 19: ...DC 5 CTRL MON1 CTRL MON3 CTRL MON5 DIVERSITY AC IN 100 120 200 240V 50 60Hz 2A CV 2 CV 1 HD SDI SD SDI HD MON AUDIO 1 WAYSIDE DATA ALARM ASI OUT ASI OUT GEN LOCK AES 2 AES 1 CTRL MON2 CTRL MON4 CTRL M...

Страница 20: ...puts These inputs and outputs are as follows CNTL MON 1 thru CTRL MON 4 Connectors The control monitor connectors are 7 pin Lemo sockets that provide control outputs and monitor inputs for the corresp...

Страница 21: ...ively acting as a diversity switch They can also be used as an ASI multiplexer The maximum bit rate is adjustable up to 40 Mbps ASI OUT Connectors The two ASI OUT connectors are 75 ohm female BNC conn...

Страница 22: ...s no incoming signal the RCL SNR and Link Qual indicators will display their lowest values or no values For a DRS4000 Receiver with four incoming signals the RCL SNR and Link Qual indicators will disp...

Страница 23: ...Control Screen Typical Help Text This region provides a brief description of each setting and menu on the Control menu For example when Chan is highlighted the help text will display Change the curre...

Страница 24: ...of the incoming video signal With the spectrum viewer option the monitor overlays the video picture with an RF spectrum of the signal The video monitor is typically blank when there is no incoming vi...

Страница 25: ...saves the current values 2 7 Routine Operations The Control menu offers convenient access to the most frequently used settings Prior to acquiring an incoming video signal you can quickly set any or al...

Страница 26: ...or as required Select Spacing option and select XXMHz or Cust as required When spacing is changed press OK Enter Channel Spacing Password menu is displayed Enter password default password is 0000 and...

Страница 27: ...Band menu is displayed Select RF band required and press OK Control menu is displayed 2 8 4 Change Modulation Mode The steps required to change the modulation mode to DVB T LMS T 10MHz or LMS T 20MHz...

Страница 28: ...oder Control menu is displayed Select Video and press OK Change Decoder Mode menu is displayed Select SD PAL or SD NTSC as required and press OK Control menu is displayed 2 8 6 Select Audio Output The...

Страница 29: ...Control menu is displayed Select Normal Inverted or Auto as required and press OK 2 8 8 Select a New Preset The steps required to select a new Preset are provided in Figure 2 13 Figure 2 13 Select a...

Страница 30: ...switch matrix for block downconverters BDC 1 thru BDC 4 are provided in Figure 2 15 Figure 2 15 Select RF Switch Matrix Control menu is displayed Select Setup and press OK Setup Menu menu is displaye...

Страница 31: ...ss as required and press OK AND OR Select Change Default Gateway and press OK Default Gateway Config menu is displayed Select Modify Default Gateway and press OK Modify gateway address as required and...

Страница 32: ...u is displayed Select Audio Video Configuration and press OK Configure Audio Video 1 menu is displayed Select Use SI Service Information and press OK Use SI Service Info menu is displayed Select On or...

Страница 33: ...yed Review PID data as required and press OK Select Back until Control menu is displayed Manual PIDs Edit menu is displayed Select PCR PID and press OK Enter PID values as required and press OK Select...

Страница 34: ...is displayed Select On or Off and press OK Press Back until Control menu is displayed NOTE It may be necessary to select More or Back to locate the Set Frame Sync option 2 9 7 Set Frame Sync Offset Th...

Страница 35: ...ssary to select More or Back to locate the Set Video Output option 2 9 9 Adjust Analog Audio Level The steps required to adjust the analog audio level are provided in Figure 2 22 Figure 2 22 Adjust An...

Страница 36: ...is 0 0 to 6 0 dM and press OK NOTE It may be necessary to select More or Back to locate the Adjust Digital Audio Level option 2 9 11 Adjust SDI Embedded Audio Level The steps required to adjust the SD...

Страница 37: ...splayed Select On or Off and press OK NOTE It may be necessary to select More or Back to locate the RS 232 Data Output option 2 9 13 Set Spectrum Overlay The steps required to set the spectrum overlay...

Страница 38: ...alog or Digital as required and press OK NOTE It may be necessary to select More or Back to locate the Select Audio Output option 2 9 15 Select Demodulator Switch The steps required to select demodula...

Страница 39: ...and Control menu is displayed NOTE It may be necessary to select More or Back to locate the Enter Service Name option 2 9 17 Set Video Fail Mode The steps required to set the video fail mode to a fre...

Страница 40: ...Menu is displayed Select Audio Video Configuration and press OK Configure Audio Video 1 menu is displayed Select Set NTSC Pedestal and press OK Set NTSC Pedestal menu is displayed Select No Pedestal o...

Страница 41: ...enu is displayed Encryption Configuration menu is displayed Encryption Configuration menu is displayed Select Enter BISS 1 Key and press OK Change BISS 1 Key menu is displayed Enter BISS 1 key data an...

Страница 42: ...Select site name to be changed and press OK Edit Site Mgmt Name menu is displayed Enter new site name and press OK Site Mgmt Configuration menu is displayed Press Back until Control menu is displayed...

Страница 43: ...s OK Packet Switch Unit Mode menu is displayed Select Diversity or Remux as required and press OK Press Back until Control menu is displayed 2 9 23 Select Packet Switch Configuration ASI Mode The proc...

Страница 44: ...Service Name and press OK Default Service Name menu is displayed Enter default service name as required and press OK Press Back until Control menu is displayed 2 9 25 Select Packet Switch Configuratio...

Страница 45: ...up Menu is displayed OR Select TANDBERG BDC menu is displayed Select Link option required and press OK Advanced Setup Menu is displayed Select MRC LNB menu is displayed Select MRC option required and...

Страница 46: ...t IF Loss and enter calculated value range is 0 to 40 1 dB Advanced Setup Menu is displayed Press Back until Control menu is displayed 2 9 28 Firmware Upgrade The steps required to upgrade the firmwar...

Страница 47: ...er a short delay the Advanced Setup Menu is displayed After a short delay observe EEPROM Successfully Initialized Press OK to continue message is displayed Press Back until the Control menu is display...

Страница 48: ...9 32 Change Channel Spacing Password The steps required to change the channel spacing password are contained in Figure 2 45 This procedure should be performed by the system administrator Figure 2 45 C...

Страница 49: ...e options contained in your receiver can be installed The DRS4000 does not have to be returned to the factory to add licensed options applicable to your receiver configuration The internal software co...

Страница 50: ...e same information as is contained on the receiver Control menu Tuner Demodulator Configuration Tab The Tuner Demodulator Configuration tab allows you to select and or change the following RF Settings...

Страница 51: ...Typical 2 13 3 Perform Status Monitor The procedure required to perform status monitor is provided in the following steps All steps are performed at the remote PC 1 Verify the DRS4000 is connected to...

Страница 52: ...the remote PC per Connect to the Web Browser on page 2 34 2 Select the Tuner Demodulator Configuration tab See Figure 2 50 Figure 2 50 Tuner Demodulator Configuration Tab Typical 3 Select pull down me...

Страница 53: ...ge 2 34 2 Select the Decoder Configuration tab 3 Select the Audio Video Settings tab See Figure 2 52 Figure 2 52 Audio Video Settings Tab Typical 4 Select pull down menu s or text box es to be changed...

Страница 54: ...DRS4000 is connected to the remote PC per Connect to the Web Browser on page 2 34 2 Select the System Configuration tab 3 Select the Hardware Info tab See Figure 2 54 Figure 2 54 System Configuration...

Страница 55: ...pment damage will occur 4 Use the BDC Configuration pull down menus to select the type and power settings as required and select the corresponding Change option button s Note If the same input option...

Страница 56: ...0 Receiver User and Technical Manual 2 Select the Presets tab See Figure 2 57 Figure 2 57 System Configuration Tab Typical 3 Select the Current Preset pull down menu select the Preset required and sel...

Страница 57: ...onent a problem cause action table states one or more possible causes For each possible cause the table provides one or more suggested actions that you can use Perform the suggested actions until you...

Страница 58: ...No power or insufficient power to receiver Fuses are blown Verify that all UHF cables are securely fastened to BDC connectors at rear of receiver Verify that all camera and transmitter cables are sec...

Страница 59: ...No receive signal level on receiver s RCL meter The transmitter is in Standby mode The wrong preset is selected A cable is loose or disconnected Contact the remote crew and verify that the transmitter...

Страница 60: ...center No audio input Loose or disconnected audio cables Audio on transmitter turned off Check the audio source Verify with the remote crew that the audio cables are securely connected to the transmit...

Страница 61: ...and that it is connected to the network Receiver IP address is incorrect From the control screen select Setup select IP and MAC Address Configuration and enter the correct IP address Receiver does not...

Страница 62: ...Troubleshooting 3 6 DRS4000 Receiver User and Technical Manual...

Страница 63: ...king Each system is shipped assembled wired and factory tested Each unit is packaged in appropriate shipping containers Here are some tips to help you with unpacking your new equipment Unpack the equi...

Страница 64: ...ion easier and allow room for future access and servicing Equipment Rack The DRS4000 Receiver mounts to the mounting rails of a standard EIA 19 inch 48 3 cm equipment rack Each unit occupies 2 rack un...

Страница 65: ...ctor on the rear panel and connect the other end to the facility AC power source Ventilation CAUTION Temperatures inside a closed mounting area can be significantly higher than the ambient temperature...

Страница 66: ...r requirements Supply Voltage 120 240 VAC 50 60 Hz Power Consumption 90 Watts without BDCs connected Add approximately 4 Watts per BDC 4 6 2 Power Supply and Distribution CAUTION Be sure the power bei...

Страница 67: ...ly CAUTION Test each antenna on the ground before mounting it on a tower or building CAUTION Verify that all packing material has been removed from the antenna To test one or more antennas on the grou...

Страница 68: ...d to properly install the antennas downconverters and associated cabling 4 9 1 Cabling Practices To install cabling for optimum performance and ensure minimal maintenance MRC recommends the following...

Страница 69: ...Freq MHz Recommended Separation cm inch Adjustment by 1 4 Wavelength mm inch 1700 to 1850 1700 52 94 20 84 44 12 1 74 1900 to 2200 1900 47 37 18 65 39 47 1 55 2200 to 2500 2200 40 91 16 11 34 09 1 34...

Страница 70: ...e antennas are connected directly to the BCDs perform the following steps for each pair of antennas and BCDs 1 Fasten the first BCD onto the mounting pole and secure it firmly in position using the mo...

Страница 71: ...depending on how the remote transmitter is configured Pinout information is shown in Table 4 2 Table 4 2 Pinouts for Audio Connector Connector Information Pinout Signal Description 1 Ground 2 3 2 1 3...

Страница 72: ...emale BNC connector enables the decoder output to lock to an external frame lock input This can either be SD Black Burst or HD Tri level input into the rear panel BNC connector The control signal is c...

Страница 73: ...used 2 1 3 4 1 8 ALARM This DB 15 female connector connects to single pole single throw SPST switches for summary alarm data for common faults and events and for site management control One SPST swit...

Страница 74: ...he POWER connector accepts a standard 3 prong cable for AC power An auto sense circuit accepts either 110 to 130 VAC or 205 to 260 VAC 2 amps The 3 prong male end must be modified for non U S applicat...

Страница 75: ...Double check to verify all cables are connected to the correct connectors Make sure all connectors are fully mated properly mated and are secured 4 16 2 Initial Power Up Now you are ready to apply po...

Страница 76: ...Installation 4 14 DRS4000 Receiver User and Technical Manual...

Страница 77: ...es Representative or consult the factory 5 3 Supported Repairs There are NO supported field repairs to the DRS4000 Receiver Return the unit for factory repair If you attempt field repair you risk dama...

Страница 78: ...Replacement Parts 5 2 DRS4000 Receiver User and Technical Manual...

Страница 79: ...eiver is a two channel or four channel input COFDM diversity system that can support DVB T and LMS T COFDM signals The receiver is designed to support Standard Definition SD and High Definition HD dec...

Страница 80: ...OUT ASI IN 1 ASI IN 2 ASI IN 3 ASI IN 4 4x4 RF Switching Matrix 4 Channel Tuner Diversity Demodulator Interface Module AC DC Power Supply MPEG Decoder AC Input Bias T PWA Bias T PWA ASI IN Processor M...

Страница 81: ...t carries output from the BDCs 6 1 2 RF Switching Module The RF switching module which is controlled by the processor module provides a 4x4 switching matrix and allows selective switching of antenna i...

Страница 82: ...se measurements in real time via the receiver s control panel 6 1 5 MPEG Decoder Module The MPEG decoder module supports SD and HD video It has two composite video output ports and two SDI output port...

Страница 83: ...des site management and alarm functionality Accepts four ASI signals switches among them and generates four copies of the selected signal The Interface Module also contains an independent dual channel...

Страница 84: ...Theory of Operation 6 6 DRS4000 Receiver User and Technical Manual...

Страница 85: ...2 5 4 12 Control panel settings 2 10 Control screen data status region 2 8 help text 2 7 live 2 7 menu buttons region 2 8 regions 2 6 2 7 signal displays region 2 8 Conventions Notices i Copyright No...

Страница 86: ...ification Notices i K Keypad front panel 2 9 L LAN 1 5 Local Area Network 1 5 Local oscillator 6 3 M MaxRC 1 3 Menu buttons 2 8 Moisture 4 3 Monitor video 2 8 Mounting options 1 8 MPEG 1 6 1 7 MPEG de...

Страница 87: ...ntrol screen 2 6 Repairs supported 5 1 Replacement Parts 5 1 External Cables 5 1 Reporting damage 4 2 RF Bands 1 5 RF Filter options 1 7 RF switching module 6 3 S SD 1 3 Service calling for 1 1 Signal...

Страница 88: ...Index 4 DRS4000 Receiver User and Technical Manual...

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