evertz 8084 Instruction Manual page 10

4.7.1 Show Port Permission Maps .......................................................................................... 4-23
4.7.2 Alter Port Permission Maps............................................................................................ 4-24
4.7.3 Show Port Active Maps .................................................................................................. 4-25
4.7.4 Alter Port Active Maps.................................................................................................... 4-25
4.7.5 Reset Port ...................................................................................................................... 4-26
5 TECHNICAL DESCRIPTION....................................................................................................... 5-1
5.1 OVERVIEW.................................................................................................................................. 5-1
5.1.1 Block Diagrams ................................................................................................................ 5-1
5.2 SPECIFICATIONS....................................................................................................................... 5-3
5.2.1 Serial Digital Video Input.................................................................................................. 5-3
5.2.2 Serial Digital Video Outputs ............................................................................................. 5-3
5.2.3 Composite Analog Video Input (8084AD only)................................................................. 5-3
5.2.4 Composite Analog Video Outputs (8084AD only) ............................................................ 5-3
5.2.5 Electrical........................................................................................................................... 5-4
5.3 SERVICING INSTRUCTIONS ..................................................................................................... 5-4
5.3.1 Changing The Fuses........................................................................................................ 5-4
5.3.2 REPLACING THE BATTERY........................................................................................... 5-5
5.3.2.1 Safety Guidelines and Precautions concerning the Use of 3V Lithium Batteries . 5-5
5.3.2.2 Procedure for Replacing the Battery .................................................................... 5-6
5.3.3 Changing DIP Switch Settings ......................................................................................... 5-6
5.3.4 Configuring Serial Port A.................................................................................................. 5-6
5.3.5 Configuring Serial Ports B and C ..................................................................................... 5-8
5.4 CIRCUIT DESCRIPTION............................................................................................................. 5-9
5.4.1 Front Panel Display and Pushbuttons.............................................................................. 5-9
5.4.2 Modems ......................................................................................................................... 5-10
5.4.3 Analog Composite Monitor 9000CME............................................................................ 5-10
5.5 UPGRADING THE FIRMWARE ................................................................................................ 5-11
5.5.1 Overview ........................................................................................................................ 5-11
5.5.2 Procedure for Firmware Upgrades................................................................................. 5-11
5.5.3 Viewing Firmware and PLD Revision Levels ................................................................. 5-13
6 TROUBLESHOOTING ................................................................................................................ 6-1
6.1 ANSWERS TO FREQUENTLY ASKED QUESTIONS................................................................ 6-1
6.1.1 Which serial port should I connect to? ............................................................................. 6-1
6.1.2 There is no SDI video being output from the unit............................................................. 6-1
6.1.3 There is valid input video but the front panel shows "VIDEO MISSING". ........................ 6-1
6.1.4 What baud rate and port settings should I use?............................................................... 6-2
6.1.5 I see "BUFFER OVERFLOW" or "PARITY BAD" messages on the front panel............... 6-2
6.1.6 How do I check the logic levels and pinouts of the serial ports?...................................... 6-2
6.1.7 Why does my Port A logic level appear as "???" ............................................................. 6-2
6.1.8 How do I check the status of my power supplies? ........................................................... 6-2
6.1.9 Captions are not being encoded at all.............................................................................. 6-3
CONTENTS
Models 8084/8084AD/8085 Closed Caption Encoder Manual
Revision 1.6.6
Page iv