Specifications

- 43 -
TABLE OF CONTENTS
1 GENERAL .............................................. 45
1.1 Description........................................... 45
1.2 Specifications......................................... 47
2 SAFETY RULES .......................................... 53
3 INSTALLATION ........................................... 55
3.1 Power requirements .................................... 55
3.2 Grounding ........................................... 56
3.3 Installation and start-up .................................. 56
4 OPERATING INSTRUCTIONS ................................ 57
4.1 Control description ..................................... 57
4.2 Using the GV-698...................................... 58
4.2.1 Selection of TV standard ............................. 59
4.2.2 Storing a configuration ............................... 60
4.2.3 Retrieving a configuration ............................. 61
4.2.4 Rotary selector .................................... 61
4.2.5 Chart selection .................................... 62
4.2.6 Channel selection .................................. 62
4.2.7 Frequency selection ................................. 62
4.2.8 Application of test pictures ............................ 62
4.3 Function buttons which modify the composite video signal ......... 64
4.4 Function buttons which modify the sound modulation ............. 65
4.5 Function buttons which operate on the Teletext and VPS signals ..... 65
4.6 Logotype generator ..................................... 66
4.6.1 Application possibilities ............................... 66
4.6.2 Replacing the EPROM memory ......................... 69
4.6.3 Letter type ....................................... 71
5 DESCRIPTION OF INPUTS AND OUTPUTS ...................... 73
5.1 Composite video output (BNC) ............................. 73
5.2 Modulated RF output ................................... 73
5.3 Synchronisms output.................................... 73
5.4 Trigger oscilloscope .................................... 74
5.5 R-G-B outputs ........................................ 74
5.6 LF sound input ........................................ 74
5.7 S-VHS output......................................... 75
5.8 Euroconnector ........................................ 76
6 PRINCIPLES OF OPERATION ................................ 77
6.1 Circuit description...................................... 77
7 MAINTENANCE........................................... 81
7.1 Replacing the mains fuse ................................ 81
7.2 Cleaning recommendations ............................... 81
7.3 Replacing the EPROM memory ............................ 81
05/96 GV-698