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HD9010TM High Definition Time Code Master Manual 

Page 2-4

 

Revision 2.4.1 

INSTALLATION

 

 

CAUTION - TO REDUCE THE RISK OF ELECTRIC SHOCK, GROUNDING OF THE 
GROUND PIN OF THE MAINS PLUG MUST BE MAINTAINED 

 

2.4. 

CONNECTING THE VIDEO 

2.4.1.  High Definition Video Input 

The high definition program video source should be connected to the HD INPUT BNC.  The HD9010TM 
can be configured to auto detect one of the high definition digital video in the formats shown in Table 2-5 
or set manually to match the incoming video type using the 

Video Standard

 Menu. 

 
The Video LED indicator will be On when there is video present matching the selected video type.  When 
it is blinking it indicates that there is video present but the VIDEO TYPE menu item does not match the 
input video format. 
 

 

The HD9010TM requires a stable video input for normal operation. 

 

2.4.2.  High Definition Video Output 

The HD BYPASS and HD OUTPUT outputs contain the input high definition video with RP215 ancillary 
data (VANC) and optional characters keyed in.  Connect one of these outputs to any input on your system 
that accepts SMPTE 292M serial digital video.  The three  outputs are identical except that the HD 
BYPASS output may be protected by an optional bypass relay (+HBP option).  When the relay is active, 
the HD BYPASS output is directly connected to the HD INPUT, and the other two HD OUTPUTS will 
have no video output. 
 

Содержание HD9010TM

Страница 1: ...terial contained in this manual consists of information that is the property of Evertz Microsystems and is intended solely for the use of purchasers of the HD9010TM High Definition Time Code Master Evertz Microsystems expressly prohibits the use of this manual for any purpose other than the operation of the device All rights reserved No part of this publication may be reproduced without the expres...

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Страница 3: ...unding prong The wide blade or the third prong is provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use attachments accessories specified by the manufacturer...

Страница 4: ...ely to cause harmful interference in which case the user will be required to correct the interference at his own expense INFORMATION TO USERS IN THE U S A NOTE FCC CLASS A DIGITAL DEVICE OR PERIPHERAL This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against...

Страница 5: ... typos and formatting errors May 07 2 4 Manual updated to conform to firmware version 2v0 Build 285 Nov 09 Added Double Height character size feature Remove VANC Line On Off control 2 4 1 Minor edits to overview and sections 3 5 2 3 7 1 Jan 14 Information contained in this manual is believed to be accurate and reliable However Evertz assumes no responsibility for the use thereof nor for the rights...

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Страница 7: ... 6 2 5 2 Connecting the Primary LTC Reader 2 6 2 6 CONNECTING THE AUXILLIARY TIME CODE 2 6 2 6 1 Connecting the Auxiliary LTC Generator 2 6 2 6 2 Connecting the Auxiliary LTC Reader 2 6 2 7 CONNECTING THE HD9010TM TO A COMPUTER 2 7 2 7 1 Physical Connections 2 7 3 HOW TO OPERATE THE TIME CODE MASTER 3 1 3 1 AN OVERVIEW OF KEY AND DISPLAY FUNCTIONS 3 1 3 1 1 The Setup Menu Pushbutton Group 3 1 3 1 ...

Страница 8: ...Reader Time and User Bit Data 3 18 3 6 CONFIGURING THE CHARACTER GENERATOR FUNCTIONS 3 18 3 6 1 Selecting the Character Style 3 19 3 6 2 Selecting whether the Frames Fields and Symbols will be displayed on the VCG 3 19 3 6 3 Selecting and Positioning the Individual Character Inserter Windows 3 20 3 6 4 Positioning the Overall Character Display and Turning it On and Off 3 20 3 6 5 Special VCG Indic...

Страница 9: ...ure 2 1 HD9010TM Rear Panel 2 1 Figure 3 1 HD9010TM Front Panel Layout 3 1 Figure 3 2 Overview of the Setup Menu 3 7 Tables Table 2 1 Parallel I O Connector Pin Definitions Normal GPIO Functions 2 2 Table 2 2 Parallel I O Port Pin Definitions Time RCTL Mode 2 2 Table 2 3 COM1 Pin Definitions 2 3 Table 2 4 AUX COM Pin Definitions 2 3 Table 2 5 High Definition Video Input Formats 2 5 Table 3 1 Top L...

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Страница 11: ...0TM High Definition Time Code Master Manual OVERVIEW Revision 2 4 1 CHAPTER 1 TABLE OF CONTENTS 1 OVERVIEW 1 1 1 1 HOW TO USE THIS MANUAL 1 2 1 2 DEFINITIONS 1 3 Figures Figure 1 1 HD9010TM Block Diagram 1 2 ...

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Страница 13: ...1080p 24 environment The high resolution character inserter provides independently positional windows to show time and user bits for the generator and readers simultaneously The choice of white or black characters with or without contrasting background mask is available Features Video formats supported 1080i 60 1080i 50 1080p 30sF 1080p 25sF 1080p 24sF 720p 60 720p 50 and the 1 1 001 divisor versi...

Страница 14: ...tures and a glossary to define concepts and terms used throughout the remainder of the manual We highly recommend taking the time to become familiar with the terms and concepts described here before proceeding into the rest of the manual Chapter 2 gives a detailed description of the rear panel connectors and how the HD9010TM should be connected into your system Chapter 3 shows how to calibrate the...

Страница 15: ...and normal TV 4x3 is 1 33 to 1 CCIR International Radio Consultative Committee An international standards committee This organisation is now known as ITU CCIR 601 See ITU R601 Cliff effect also referred to as the digital cliff This is a phenomenon found in digital video systems that describes the sudden deterioration of picture quality when due to excessive bit errors often caused by excessive cab...

Страница 16: ...econds 18 frames per hour A flag bit is set in the time code to signal when the drop frame mode is in effect EBU European Broadcasting Union An organisation of European broadcasters that among other activities provides technical recommendations for the 625 50 line television systems Embedded audio Digital audio is multiplexed onto a serial digital video data stream Gen lock In order to derive the ...

Страница 17: ...It is recorded on a linear track with audio characteristics and is referred to as LTC Each 80 bit code word is associated with one television frame and consists of 26 time bits 6 flag bits 32 user bits and 16 sync bits This time code may run at 24 25 or 30 frames per second depending on the video format See also SMPTE 12M LTC See Linear Time Code NTSC National Television Standards Committee establ...

Страница 18: ...rd for embedding audio in serial digital high definition SMPTE 292M video signals SMPTE RP188 The SMPTE recommended practice for embedding SMPTE 12M timecode into ancillary data packets in serial digital video signals sF Also known as segmented frame The picture is progressively scanned however divided into two segments containing the odd and even lines The segments are then sent out the serial di...

Страница 19: ...eo Output 2 4 2 5 CONNECTING THE LINEAR TIME CODE 2 5 2 5 1 Connecting the Primary LTC Generator 2 6 2 5 2 Connecting the Primary LTC Reader 2 6 2 6 CONNECTING THE AUXILLIARY TIME CODE 2 6 2 6 1 Connecting the Auxiliary LTC Generator 2 6 2 6 2 Connecting the Auxiliary LTC Reader 2 6 2 7 CONNECTING THE HD9010TM TO A COMPUTER 2 7 2 7 1 Physical Connections 2 7 Figures Figure 2 1 HD9010TM Rear Panel ...

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Страница 21: ...D INPUT HD OUTPUT High definition serial digital video output compatible with the SMPTE 292M standard with the RP188 Ancillary Time Code and optional characters inserted When the optional bypass relay HBP option is activated on power failure or from the front panel the HD OUTPUT BNCs will not have any video signal on them 2 1 2 GenLock Reference Connections REFERENCE LOOP Input BNC loop for a genl...

Страница 22: ...nput Rev 2 versions only 4 GPI3 GPIO 3 Input Output Rev 2 versions only 5 GPI5 GPIO 5 Input Output 6 GND Ground 7 GPI7 GPI 7 Input Rev 2 versions only 8 GPI2 GPIO 2 Input Output 9 GPI4 GPIO 4 Input Output Rev 2 versions only Table 2 1 Parallel I O Connector Pin Definitions Normal GPIO Functions Table 2 2 shows the functions of the PARALLEL I O connector pins when the GEN MODE is set to time rctl m...

Страница 23: ...The HD9010TM Film Footage Encoder has a universal power supply operating on either 115v 60 Hz or 230v 50 Hz AC operation 2 2 MOUNTING The HD9010TM is equipped with rack mounting angles and fits into a standard 19 inches by 1 75 inches by 17 75 inches 483 mm x 45 mm x 451mm rack space The mounting angles may be removed if rack mounting is not desired 2 3 POWER REQUIREMENTS Power requirements are 11...

Страница 24: ...re is video present matching the selected video type When it is blinking it indicates that there is video present but the VIDEO TYPE menu item does not match the input video format The HD9010TM requires a stable video input for normal operation 2 4 2 High Definition Video Output The HD BYPASS and HD OUTPUT outputs contain the input high definition video with RP215 ancillary data VANC and optional ...

Страница 25: ...5 P sF 274M 1080i 50 PAL 1080p 24sF 1920 x 1080 24 P sF 274M 1080p 24sF 625i 48 1080p 23 98sF 1920 x 1080 23 98 24 1 001 P sF 274M 1080p 23 98sF 625i 47 96 720p 60 1280 x 720 60 P 296M 1080i 60 1080p 30sF 720p 60 525i 30 720p 59 94 1280 x 720 59 94 60 1 001 P 296M 1080i 59 94 1080p 29 97sF 720p 59 94 NTSC 720p 50 1280 x 720 50 P 296M 1080i 50 1080p 25sF 720p 50 625i 25 Table 2 5 High Definition Vi...

Страница 26: ...am sync the HD9010TM s Video LTC generator to the code previously recorded on tape This mode is used when the Record VTR is generating its own time code and the HD9010TM needs to read it to insert the VTR s timecode into the RP188 Ancillary time code packets 2 6 CONNECTING THE AUXILLIARY TIME CODE The frame rate of the auxiliary time codes may be different than the system video frame rate Specific...

Страница 27: ...e time and user bit data In order to connect your HD9010TM to your computer use standard 9 pin straight through cable See section 4 2 for a complete description of how to upgrade the firmware Contact the factory for further information about the serial data output The baud rate of this port is set using the COM 1 BAUD RATE menu item A second 9 pin sub miniature D connector AUX COM is provided for ...

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Страница 29: ... 12 3 4 6 Setting the ATC Packet Type 3 12 3 4 7 Selecting the Generator Drop Frame Mode 29 97 and 59 94 FPS video standards only 3 13 3 4 7 1 Conversion Between Drop Frame and Non Drop Frame Counting Modes 3 13 3 4 8 Generator LTC Parity Mode Selection 3 15 3 4 9 Configuring how the Continuous Jam Sync Mode Works when there is no Primary Reader Code 3 16 3 5 CONFIGURING THE READERS 3 16 3 5 1 Set...

Страница 30: ...HE GENERAL PURPOSE INPUTS AND OUTPUTS 3 25 3 8 1 GPI Remote Control Mode 3 25 3 8 2 Assigning the Functions of the General Purpose Inputs 3 26 Figures Figure 3 1 HD9010TM Front Panel Layout 3 1 Figure 3 2 Overview of the Setup Menu 3 7 Tables Table 3 1 Top Level of the Generator Setup Menu 3 8 Table 3 2 Top Level of the Reader Setup Menu 3 16 Table 3 3 Top Level of the VCG Setup Menu 3 19 Table 3 ...

Страница 31: ... control of the front panel display The shaft encoder knob is used to navigate the front panel menu system and to adjust the phasing of the sync pulse outputs A front panel Setup menu provides a quick and simple method of configuring the HD9010TM for your application Sections 3 3 to 3 7 give detailed information on the specific operations required to control the HD9010TM 3 1 1 The Setup Menu Pushb...

Страница 32: ...ome on indicating that the front panel keys are disabled Pressing the PANEL LOCK key while holding down the SHIFT key again will return the front panel keys to their normal functions and the PANEL LOCK LED will go Off When the PANEL LOCK GPI has been activated you cannot unlock the front panel using the SHIFT PANEL LOCK keys The front panel display will show LOCKED BY REMOTE 3 1 4 The Character Wi...

Страница 33: ...am sync mode See section 3 5 1 for information about selecting the primary reader HOLD When the generator time GTM is displayed on the front panel pressing the HOLD key stops the generator time from incrementing A special character H appears to the left of the numeric display on the front panel indicating that the display is in Hold mode Pressing the HOLD key again starts the generator incrementin...

Страница 34: ...hile you press the numeric keys 0 through 5 will change their entered values to the hexadecimal values A through F When you are selecting values in the menus holding the SHIFT key while you turn the SHAFT ENCODER knob will advance the values faster SHIFT JAM Enters or cancels the continuous jam sync mode SHIFT PANEL LOCK Enters or cancels the panel lock mode 3 1 8 Shaft Encoder Knob The shaft enco...

Страница 35: ...cate that the corresponding power supply is functioning normally On units fitted with a single power supply the PSU STATUS 2 LED will be Off all the time VIDEO This green LED indicates that valid video signal is present GENLOCK This green LED indicates that a valid genlock reference is present and the HD9010TM has locked to it JAM This green LED indicates that continuous jam sync mode is active AN...

Страница 36: ...COM status information GPI 111111111 GPI Input status information OFS 12 34 56 00 Jam Sync Offset Register SYN 12 34 56 00 Drop Frame Conversion Sync Point VID AUTO I 60 Current video standard 3 2 2 Special Front Panel Indicators The following special indicators are used between the seconds and frames digits of the front panel time display to identify non drop frame and drop frame code when the ti...

Страница 37: ... on VCG SYMBOLS Vcg symbols off Vcg symbols on UTIL VIDEO STANDARD Vstd auto Vstd 1080i 60 Vstd 1080i 50 Vstd 720p 60 Vstd 720p 50 Vstd 1080p 24sF REFERENCE MODE Ref input Ref tri lvl Ref bi lvl LTC LEVEL Ltc level xx AUX LTC LEVEL Aux ltc level xx COM 1 BAUD RATE Com 1 xx AUXCOM BAUD RATE Aux com xx SYS PARM CLASS Sys prm class 0 SYS PARM NUMBER Sys prm num 0 SYS PARM VALUE Sys prm value 0 HARDWA...

Страница 38: ...es an overview of the setup menu Sections 3 4 to 3 7 provide detailed descriptions of the GENERATOR READER VCG and UTILITY SETUP menus The tables in these sections are arranged in an indented structure to indicate the path taken to reach the control 3 4 CONFIGURING THE GENERATOR The GENERATOR SETUP menu is used to set up various generator modes such as selecting Drop Frame Jam Sync Modes ATC Gener...

Страница 39: ...g the primary reader Transferring the reader user bits is used when reader time data previously transferred to user bits as above or other user bit information must be retained when recording new code When used in conjunction with the Continuous Jam Sync mode both the time and user bits will be transferred to the new tape Gmode Time RCTL sets the HD9010TM into a user bit remote control mode In thi...

Страница 40: ...into the numeric display starting at the right Un entered digits are assumed to be zero hence leading zero digits are not required When the required number of digits are entered then press the ENTER key to complete the data entry into the generator time Attempts to enter too many digits or make illegal entries i e 65 minutes will result in the display returning to the last valid time entry made Re...

Страница 41: ... on its own This mode is known as Momentary Jam Sync See section 3 5 1 for information about selecting the primary reader The generator time may be continuously slaved or Jam synced to data coming from the primary reader by pressing the SHIFT JAM keys This mode is known as Continuous Jam Sync The JAM LED will be on when Continuous Jam Sync mode is enabled Pressing the SHIFT JAM keys again terminat...

Страница 42: ...et desired To access the OFFSET register press the DISPLAY buttons one or more times or press the DISPLAY button and turn the SHAFT ENCODER until the display prompt shows OFS 3 4 5 Turning the ATC Generator On The ANC GEN ON OFF key is used to turn the Ancillary Time code ATC inserter on and off You must exit the Setup menu to turn the ATC generator on or off When the ATC generator is Off the prog...

Страница 43: ...inuous Jam Sync mode the generator drop frame mode is the same as the incoming time code data The Drop Frame sub menu shows Drop frame jamming When the HD9010TM is operating in the 24 25 or 50 frames per second video standards the Drop Frame sub menu shows Not applicable Drop frame off Drop frame on Drop frame convert Drop frame jamming Not applicable The AUX LTC output will normally output nomina...

Страница 44: ...d sync point will be rounded down to the nearest minute as the dropped frames only occur on minute boundaries The HD9010TM OFFSET register can also be used to enter a frame offset to account for frame delays in a standards converter or other video processing device To access the OFFSET register press the DISPLAY buttons one or more times or press the DISPLAY button and turn the SHAFT ENCODER until...

Страница 45: ... 00 59 00 07 01 01 00 03 01 01 00 09 In order to convert the generator time exactly to the reader time at the SYNC POINT make sure the OFFSET is set 00 00 00 00 3 4 8 Generator LTC Parity Mode Selection The purpose of the phase correction parity bit LTC bit 27 in 30 FPS 59 in 25 FPS is to compensate for phase reversals in the LTC bi phase mark modulation that could occur when code inserts are perf...

Страница 46: ...he tape machine supplying the incoming code to the reader Select No code jam mute when you want to turn off the generator when there is no incoming Reader code The generator time will stop at the last number read When the reader code resumes the generator will turn on and re jam to the incoming code Use this mode if you want the output of the generator to turn off completely when you stop the tape...

Страница 47: ... The SMPTE RP188 recommended practice for Ancillary Timecode ATC identifies two types of ATC packets The ATC RDR TYPE menu item is used to select whether the ATC reader will read LTC or VITC or both types of ancillary timecode packets A fourth choice allows the HD9010TM to read time and user bit information from a special VANC packet inserted by the generator of another HD9010TM Select Atc rdr ltc...

Страница 48: ...Ltc time data Ltc data data 3 5 5 Selecting the Format of the Auxiliary LTC Reader Time and User Bit Data AUX RDR MODE The AUX RDR MODE menu item is used to select how the information that is contained in the time and user bits of the AUX reader is displayed Select AUX time data when the time bits contain normal time information and the user bits contain numeric data Select AUX data data when both...

Страница 49: ...format menus are always white characters keyed into a black background mask Select white none to disable the background and key white characters directly into the picture Select white black to key white characters on a black background mask into the picture Select white 20 white 50 or white 80 to key white characters on a transparent grey background mask into the picture Select black none to disab...

Страница 50: ...ress VCG CONTROL SELECT to enable the Window Select mode All the character windows will appear on the screen with the window for the generator time highlighted Use the CHAR GEN ON OFF key to turn the Time window on or off Use the VSIZE key to turn set the vertical size of the character window Use the VCG CONTROL ON OFF key to turn the highlighted window on or off Press and hold the HORZ key and tu...

Страница 51: ...out each of the sub menus VIDEO STANDARD Sets the video standard REFERENCE MODE Selects the generator framing reference LTC LEVEL Sets the amplitude level of the main LTC output AUX LTC LEVEL Sets the amplitude level of the auxiliary LTC output COM 1 BAUD RATE Sets the baud rate of the COM 1 serial port AUXCOM BAUD RATE Sets the baud rate of the AUX COM serial port SYS PARM CLASS Sets the system p...

Страница 52: ... detected video standard You can also select the video standard manually Select 1080i 60 for operation with 1080i 59 94 or 1080i 60 video conforming to SMPTE 274M Select 1080i 50 for operation with 1080i 50 video conforming to SMPTE 274M Select 1080p 24sF for operation with 1080p 23 98 or 1080p 24 video conforming to SMPTE 274M Select 720p 60 for operation with 720p 59 94 or 720p 60 video conformi...

Страница 53: ...resent providing a stable video output The input video must be timed to the sync reference within one horizontal line period for proper alignment of the picture content on the output video The format of the reference sync signal must be in accordance with the standards shown in Table 2 5 Ref input Ref tri lvl Ref bi lvl Regardless of the setting of this menu control the HD9010TM requires a stable ...

Страница 54: ...he factory before changing any System parameters from their default values SYS PARM CLASS This menu sets the system parameter class for the parameter value you want to change Sys prm class 0 SYS PARM NUMBER This menu sets the system parameter number for the parameter value you want to change Sys prm num 0 SYS PARM VALUE This menu changes the value of the system parameter selected by the SYS PARM V...

Страница 55: ...ns The pin out of the D connector when the HD9010TM is not in the time rctl mode is shown in Table 2 1 The GPI front panel display accessible by pressing the DISPLAY button one or more times will show the status of the GPI inputs The GPI status display GPI 11111111 is a group of 8 digits representing the GPI inputs GPI 8 on the left GPI 1 on the right When the digit is showing a 0 the GPI input is...

Страница 56: ... downconverter that passes the timecode through to the downconverted output the encoded GPI signals can be decoded by the 7721GPI D SDI decoder as shown in Table 3 5 GPI HD9010TM PIN IN 7721DD4 HD GPI PIN OUT 7721GPI D PIN OUT GUB Data byte 1 1 1 11 4 81 2 8 12 8 82 3 4 13 3 84 4 9 14 1 88 5 5 15 13 90 6 2 16 14 A0 7 7 GEN SET 8 3 VCG DISABLE Table 3 5 Remote Control Mode GPI I O Mapping 3 8 2 Ass...

Страница 57: ...ned On by a low to high transition BYPASS When closed to ground this input activates the SDI bypass relay JAM SYNC Provides an alternate method of syncing the generator time of the active reader time when the unit is not in the convert mode Momentarily closing this input to ground and releasing it will perform a synchronization to the reader time GEN HOLD Provides an alternate method of selecting ...

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Страница 59: ... 4 1 7 System Latency 4 2 4 1 8 Physical 4 2 4 1 9 Electrical 4 2 4 2 UPGRADING THE FIRMWARE 4 2 4 2 1 Overview 4 2 4 2 2 Terminal Program Setup 4 3 4 2 3 Initiating Firmware Upgrade Mode Via The Front Panel 4 3 4 2 4 Initiating Firmware Upgrade Mode From The Terminal Program 4 3 4 2 5 Uploading the New Firmware 4 4 4 2 6 Completing the Upgrade 4 5 4 3 SERVICING INSTRUCTIONS 4 5 4 3 1 Changing the...

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Страница 61: ...ime code embedded and optional characters Connectors BNC per IEC 60169 8 Amendment 2 Signal Level 800mV nominal DC Offset 0V 0 5V Rise and Fall Time 200ps nominal Overshoot 10 of amplitude Wide Band Jitter 0 15 UI 4 1 3 Reference Input Type HD Tri level Sync NTSC or PAL Colour Black 1 V p p or Composite bi level sync 525i 59 94 or 625i 50 300 mV Table 2 5 Connector BNC loop per IEC 60169 8 Amendme...

Страница 62: ...h FCC Part 15 Class A EU EMC Directive 4 2 UPGRADING THE FIRMWARE 4 2 1 Overview The firmware in the HD9010TM is contained on a FLASH EPROM From time to time firmware updates will be provided to add additional features to the unit There are two different versions of hardware that may be installed in the HD9010TM The HARDWARE VERSION menu item will tell you whether you have Rev 1 7700PB3 or Rev 2 7...

Страница 63: ...w to operate the front panel menus Press the UTIL key to enter the UTILITIES Setup menu Scroll to the FIRMWARE UPGRADE menu item by turning the SHAFT ENCODER knob and then press SELECT If you want to upgrade the main operating firmware in the HD9010TM then turn the SHAFT ENCODER knob until the display shows yes and then press SELECT or press the ESC key if you want to abort the programming operati...

Страница 64: ... 10 Hit the ENTER key on your computer once 11 Type the word upgrade without quotes and hit the ENTER key once 12 The boot code will ask for confirmation Type y without quotes 4 2 5 Uploading the New Firmware 13 You should now see a prompt asking you to upload the file 14 Upload the bin file supplied using the X Modem transfer protocol of your terminal program If you do not start the upload within...

Страница 65: ...ect the RS 232 serial cable from the PC 4 3 SERVICING INSTRUCTIONS CAUTION These servicing instructions are for use by qualified service personnel only To reduce risk of electric shock do not perform any servicing instructions in this section of the manual unless you are qualified to do so 4 3 1 Changing the Fuses Check that the line fuse is rated for the correct value marked on the rear panel Nev...

Страница 66: ... top cover Before removing the top cover of the unit make sure that both power cords are disconnected from the mains 4 3 2 1 Enabling the Time Code Broadcast Data Output When you set DIP switch 4 and 8 to the closed down position the HD9010TM COM 1 port will output a packed BCD serial data stream output with the following specifications Baud Rate Selectable using the COM 1 BAUD RATE control Data F...

Страница 67: ...m should be zero if the checksum is computed correctly The MESSAGE is structured as follows DATA 1 DATA n DATA 1 DATA 9 9 Data bytes of the broadcast message If the current generator time code was 12 45 30 00 Drop Frame and the user bits were 87 65 43 21 the data broadcast message would be received as follows hexadecimal notation 02 0A 00 30 45 12 01 STX BYTE COUNT DATA 1 FRMS DATA 2 SECS DATA 3 M...

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