Hirschmann PAL 1 HU Скачать руководство пользователя страница 12 | Manualshive

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Monitoring output

The level of the monitoring output is the same, whether the group delay precor-
rection is bridged or not.

Control

The following controls can be carried out with the monitoring software:

l

forced switchthrough of main/substitute signal

l

switch on/off of text insertion

Block diagram

Video processor

Operation

Manual

2 - 6

PAL modulator 1 HU

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Содержание PAL 1 HU

Страница 1: ...Manual PAL modulator 1 HU version 1 2 print March 96 BH_1760E Hirschmann...

Страница 2: ...tion 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 Modu...

Страница 3: ...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 PAL modulator...

Страница 4: ...Index Manual 0 4 PAL modulator 1 HU...

Страница 5: ...Introduction Introduction Manual PAL modulator 1 HU 1 1...

Страница 6: ...his 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 writte...

Страница 7: ...Operation Operation Manual PAL modulator 1 HU 2 1...

Страница 8: ...f 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 fo...

Страница 9: ...Block diagram Block diagram of overall PAL modulator 1 HU Operation Manual PAL modulator 1 HU 2 3...

Страница 10: ...Schematic diagram of the video processor vision sound modulator and sound2 modulator Operation Manual 2 4 PAL modulator 1 HU...

Страница 11: ...to the substitute signal can be done in two ways l Automatic switch over l Forced switchthrough The video processor reports to the vision sound modulator via the control line MAIN AUX indicating wheth...

Страница 12: ...group delay precor rection is bridged or not Control The following controls can be carried out with the monitoring software l forced switchthrough of main substitute signal l switch on off of text ins...

Страница 13: ...nge from 3 3 dB on the front panel The substitute sound inputs are asymmetric highly resistive and not tunable Level 6 dBm 600 Ohm Preemphasis The preemphasis 50 s can be switched off on the assembly...

Страница 14: ...Block diagram Vision sound modulator Operation Manual 2 8 PAL modulator 1 HU...

Страница 15: ...ion mode can also be determined with the monitoring software or on the connector SOUND MAIN IN If it is the LED REMOTE lights up The transmission mode is shown by LEDs on the front panel The following...

Страница 16: ...nals l IF SND1 OUT l IF SND 2 OUT l IF SND 1 2 OUT The IF matching unit is made up of impedance transforming from 50 to 75 ohm Block diagram Sound2 modulator IF SND1 OUT IF SND1 2 OUT IF SND 2 OUT IF...

Страница 17: ...ights red at module fault see data sheet 1765 8 Potentiometer for the adjustment of the freq deviation of sound1 3 dB 9 Potentiometer for the adjustment of the freq deviation of sound2 3 dB 10 IF moni...

Страница 18: ...1 output IF SND1 OUT 7 IF vision carrier output IF VIDEO OUT 8 IF reference frequency input IF REF IN 9 Video auxilliary input VIDEO AUX IN 10 Unscrambled video input VIDEO MAIN SYNC IN 11 Scrambled...

Страница 19: ...ter VIDEO IN until 700 mV white level is displayed by the PC monitoring software If you put the video processor into operation without the PC monitoring soft ware connect an oscilloscope to the monito...

Страница 20: ...al path in video processor is interrupted Check the switch settings in the module see Data sheet No LED s are on No operating voltage is being supplied to the module Check the operating voltage supply...

Страница 21: ...Error in module Check the fuse on the assembly see data sheet 1760 PLL of VCO is unlocked from sound2 or Sound2 IF level is too low or Sound2 is switched off Check the settings on the PC Replace modul...

Страница 22: ...Operation Manual 2 16 PAL modulator 1 HU...

Страница 23: ...Service Service Manual PAL modulator 1 HU 3 1...

Страница 24: ...nding data sheets To adjust open the module on the top the data sheets contains detailed information Functional check Check the function of the modules with the PC monitoring program Handling Storage...

Страница 25: ...und modulator PL BTM 502 1 889 383 001 Assy sound2 modulator PL T2M 501 889 204 001 Data processor DP 501 1 976 936 001 Rear panel assy PL RW PM 501 1 889 358 001 IF matching unit 50 75 ZAF 501 976 93...

Страница 26: ...Great Britain Electronics UK Ltd Tel 44 0 1842 754 111 Burrell Way FAX 44 0 1842 751 003 THETFORD NORFOLK IP24 3RW Hungary Hirschmann BHG Tel 36 0 1 149 7575 Rokolya u 1 13 FAX 36 0 1 129 8453 H 1131...

Страница 27: ...Data sheets Data sheets Manual PAL modulator 1 HU 4 1...

Страница 28: ...sound modulator and vision carr locking 1765 Assy sound2 modulator 1766 IF matching unit 1768 IF locking 1045 Remote record interface 1755 Rear panel assy 1751 Data processor 1185 Data sheet identific...

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