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Table of Contents

BG7 module repl

aceable parts list ............................................................................ 8-15

DVG7 Digital V

ideo Generator module

DVG7 module service overview................................................................................ 9-1

DVG7 module adjustment procedures ......................................................................... 9-2

Requirements for adjustment ............................................................................... 9-2

Required equipment ......................................................................................... 9-2

To adjust the output level ................................................................................... 9-3

DVG7 module theory of operation ........................................................................... 9-10

DVG7 module interconnect diagram ......................................................................... 9-12

DVG7 module troubleshooting ............................................................................... 9-13

Required equipment ....................................................................................... 9-13

To back up the instrument settings....................................................................... 9-13

DVG7 module troubleshooting trees .................................................................... 9-14

DVG7 module removal and replacement .................................................................... 9-16

Required tools.............................................................................................. 9-16

How to replace the rear-panel connectors and chassis................................................. 9-17

DVG7 module replaceable parts list.......................................................................... 9-18

GPS7 GPS Synchronization and Timecode module

GPS7 module service overview............................................................................... 10-1

GPS7 module adjustment procedures ........................................................................ 10-2

Requirements for adjustment ............................................................................. 10-2

Required equipment ....................................................................................... 10-2

To adjust black burst level and offset.................................................................... 10-3

GPS7 module theory of operation ............................................................................ 10-5

GPS7 module troubleshooting ................................................................................ 10-8

Required equipment ....................................................................................... 10-8

Problem identiﬁcation..................................................................................... 10-9

Troubleshooting procedures ............................................................................. 10-11

GPS7 module removal and replacement .................................................................... 10-23

Required tools............................................................................................. 10-23

To remove the GPS7 module ............................................................................ 10-24

To replace the Antenna Power indicator (light pipe).................................................. 10-24

How to replace the rear-panel connectors and chassis................................................ 10-24

TG8000 Multiformat Test Signal Generator Service Manual v

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