Hirschmann PAL 1 HU Manuel utilisateur
Manual
PAL modulator 1 HU
version: 1.2
print: March 96/BH_1760E
Hirschmann ü
Index
Introduction 1 - 1
General Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2
Technical modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2
Guarantee and Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2
Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2
Explanation of the warning and note symbols. . . . . . . . . . . . . . . . . . . 1 - 2
Operation 2 - 1
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 2
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 2
Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 3
Video processor VP 501/1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 5
Vision/Sound modulator BTM 501/1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 7
Sound2 modulator T2M 501/1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 9
IF matching unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 10
Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 11
Module frontside. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 11
Module rear side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 12
Putting the modulator into operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 13
Help with problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 14
Video processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 14
Vision/sound modulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 14
Sound2 modulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 15
Index
Manual
0 - 2 PAL modulator 1 HU ü
Service 3 - 1
Warning Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 2
Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 2
Functional check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 2
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 2
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 3
Customer Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4
Data sheets 4 - 1
Data sheet index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 2
Data sheet identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 2
Index
Manual
üPAL modulator 1 HU 0 - 3
Index
Manual
0 - 4 PAL modulator 1 HU ü
Introduction
Introduction
Manual
üPAL modulator 1 HU 1 - 1
General Notes
CAUTION: Keep the manual handy all the time.
Technical modifications
The information contained in this manual is subject to change at any time.
Guarantee and Warranty
The Hirschmann Company assumes no liability whatsoever (liability for material
defects, legal warranty, guarantee for marketability, violation of existing patent
rights) with the exception of the guarantees indicating in this manual.
Copyright
This manual covers information protected by copyright. All rights are reserved.
No part of this manual may be photocopied, otherwise reproduced or translated
into another language without the prior written consent of Hirschmann.
Explanation of the warning and note symbols
WARNING: Indicates that non compliance with the cautionary
measures listed could result in personal injury or
equipment damage.
CAUTION: Indicates that non compliance with the cautionary
measures listed could result in equipment damage.
NOTE: Comments giving useful tips and information on
practical application.
Introduction
Manual
1 - 2 PAL modulator 1 HU ü
Operation
Operation
Manual
üPAL modulator 1 HU 2 - 1
Functional description
General
The PAL modulator is used in headend systems. It processes a scrambled
video signal and supplies the following IF signals:
l
IF vision carrier
l
IF sound carrier 1 (IF SC1)
l
IF sound carrier 2 (IF SC2)
l
IF sound carrier 1+2 (IF SC1+2)
It can be used for stereo/2sound and mono transmission.
The PAL modulator functional group consists of:
l
Assy video processor
l
Assy vision/sound modulator
l
Assy sound2 modulator
l
IF matching unit
l
IF locking
l
AUX assy
l
Remote record interface
l
Rear panel assy
l
Data processor
Arrangement All of the terminals of the module are located on the back of the main frame.
The monitoring outputs and the interface for the Data processor (PC monito-
ring) are located in front of it. Adjustment elements for tuning are on the front
panel and inside the module. The IF matching unit and the power supply are at-
tached to the rear side of the main frame.
Monitoring Check of the most important parameters can be made via the PC monitoring
software. Therefor a Dataprocessor DP 501-1 is nessesary, witch handle the
data communication between the PAL modulator and the PC.
The following signals are available on the rear side of the main frame on
connector "STATUS"
l
video signal on the video main sync. input is present
l
summary fault
Operation
Manual
2 - 2 PAL modulator 1 HU ü
Block diagram
Block diagram of overall PAL modulator 1 HU
Operation
Manual
üPAL modulator 1 HU 2 - 3
Schematic diagram of the video processor, vision sound modulator and sound2
modulator
Operation
Manual
2 - 4 PAL modulator 1 HU ü
Table des matières
