1、 = 3404583 013b948 898 BRITISH STANDARD Helical-scan video tape cassette system using 8 rnrn magnetic tape - 8 mm video Part 1. General specifications The European Standard EN 60843-1 : 1994 has the status of a British Standard UDC 621.397.454 BS EN 60843-1 : 1994 IEC 843-1 : 1993 3404583 013b94 724
2、 a Amd. No. BS EN 60843-1 : 1994 Date Text affected This British Standard, having been prepared under the direction of the Electronic Equipment Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 October 1994 O BSI 1994 The following BSI r
3、eferences relate to the work on this standard: Committee reference EEL/22 Draft for comment 91134807 DC ISBN O 580 23447 9 Cooperating organizations The European Committee for Electrotechnical Standardization (CENELEC), under whose supervision this European Standard was prepared, comprises the natio
4、nal committees of the foliowing countries: Austria Belgium Denmark Finland France Germany Greece Iceland Ireland Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland United Kingdom BS EN 60843-1 : 1994 Contents Cooperating organizations National foreword page inside front cover i Fo
5、reword 2 %xt of EN 60843-1 3 National annex NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross-references Inside back cover National foreword This Fart of BS EN 60843 has been prepared under the direction of the Electronic Equipment Standards policy Commi
6、ttee and is the English language version of EN 60843-1 : 1994 Helical-scan video tupe cclssette system using 8 mm magnetic tupe - 8 mm Video, 3404583 OL3b977 b99 m J. I 2.(q videotradcpileh 0.0205 0,0344 3. (W) Video effective width (180“) 5,351 5.351 4. (L) Distance between video track centre and 4
7、461 4.461 reference edge of tape Page 27 EN 60843-1 : 1994 7. (C) 8. (R) Auxiliary track for cue Auxiliary track for audio including optional tape edge guard (0,l) 1 Xshall be measured from the end of the 180“ scan of CH-2 to the audio and cue head on the tape. 0.6 f 0,05 0,6 f 0,05 0,6 f 0,05 0.6
8、f 0.05 2 TPS: tracking pilot signal. 9 For the detailed allocation of signals, refer to the video track area allocation in clause 16 b). 9. (eo) Vi track angle (tape stop) 10. (9) 11. (4 Vi track angle (tape runs) Position of audio and cue heads Figure 19 - Track configuration and dimensions (viewed
9、 on the magnetic sensitive side) 4O 53 06- 4 53 06“ 4 54 13.2 4“ 54 58.8 31 f 0.24 31 f 0.24 Item I 625 line - I 60 field system I 50 field system 525 line - I l.(A) Tapewidth see 2.2.1 I 5. (T) Video track width 0.0205 0,0344 I I 6. (F) Auxiliary track reference line I 7,4 t 0.05 I 7,4 t0,05 NOTE - Where tolerances are not given the quoted values are nominal. Dimensions are in millimetres except where given otherwise.
