SMPTE ST 317M-1999 Television Digital Recording - 12 65-mm Type D-9 Component Format - Tape Cassette.pdf

1、STD-SMPTE 317M-ENGL 1999 W 8357401 0003848 479 = SMPTE 317M-1999 SMPTE STANDARD for Television Digital Recording - 12.65-mm Type D-9 Component Format - Tape Cassette 1 Scope This standard specifies dimensions for the video tape cassette used with the 12.65-mm type D-9 digital component television re

2、corder. 2 Normative reference The following standard contains provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this standard

3、 are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. SMPTE 31 6M-1999, Television Digital Recording - 12.65-mmType D-9 Component Format -525/60and 62950 3 Measurement Tests and measurements on cassette parameters shall be carried out und

4、erthe following atmospherkconditions: - Temperature 20C * 1C - Relative humidity (50 f 2)% - Barometric pressure 86 kPa to 106 kPa - Stabilization time 24 hours 4 Video tape cassette 4.1 General specifications 4.1.1 The dimensions of the cassette used for re- cording shall be in accordance with figu

5、res 1 to 17. Page 1 of 20 pages 4.1.2 The magnetic coating on the tape shall face out of the cassette as specified in figure 12. 4.2 Datum plane 4.2.1 Datum plane Z is determined by datum areas A, B, and C as specified in figure 7. 4.2.2 Datum plane Y shall be orthogonal to da- tum plane Z and shall

6、 run through the center of datum hole A and datum hole B as specified in figures 4 and 5. 4.2.3 Datum plane X shall be orthogonal to both datum plane Y and datum plane Z and shall run through the center of datum hole A as specified in figures 4 and 5. 4.3 Window and labels Window and label areas sha

7、ll be as specified in figures 2 and 3. 4.4 Color Window and reel upper flange: Transparent Cassette shell: A color shall be selected so that overall light transmission of the cassette shell in- cluding wound tape is less than 2% when the light on the cassette upper surface is measured at the positio

8、ns of the VTR light sensors. A VHS cassette optical tester or an equivalent measuring instrument shall be used. Copyright 1999 by THE SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS 595 W. Hatisdale Ave., White Plains. NY 10607 (914) 761-1100 Approved August 1, 1999 Dotun plo n ?Do tun plane Y I

9、104IO. 5 1- 71 9730. 2 t I 4. I I I l l I I l l I I I In cese OC O 2520. 2 c-. - I E c ,+,o.- / - 1r1 cese of d Dimensions in millimeters NOTES 1 Cassette warpage: The cassette shall pass through the tunnel gauge with an insertion force of les than 10 N. The tunnel gauge dimensions are a width of 18

10、8.6 mm + O mm - 0.02 mm , a height of 25.5 mm + O rnm - 0.02 mm, and a depth of 100 mm + 5 mm - O mm. 2 The front cover dimension (P) can be made up to 0.7 mm smaller than the overall width dimension (W). 3 Front cover warpage shall be within + 0.5 rnrn - 0.3 mm. The drawings in the lower portion of

11、 the figure show the downward view. Figure 1 - Cassette overall shape and dimensions Page 2 of 20 pages STDoSMPTE 337M-ENGL 3999 8357403 0003850 027 W SMPTE 317M-1999 Dotun plone YA nore thon 90 i 0 90 I 4 Dotun / lone ! Note5 Note9 less than 20, Note3 II i Note3 Notel 49IO. 3 - No Figure 2 - Casset

12、te top and side view dimensions (1) Dimensions in millimeters Page 3 of 20 pages SMPTE 317M-1999 Note14 I STDmSMPTE 317fl-ENGL 2999 8357402 0003852 Tb3 -. Notel3 A Note4 BB Note5 lock release button Cassette front cover cv L+ -Yo z 5; ml 01 CC Note5 Dimensions in millimeters NOTES 1 Top label area:

13、Provide label attachment portion within this area. The attachment area depth is 0.3 mm f 0.1 mm and 2 Tape amount display window area: Provide window within this area. The window shall not protrude above the top plane 3 Cassette holding area: The cassette is held by the recorder or player in this ar

14、ea. This area shall be flat. 4 Insertion error prevention groove: This dimension includes mechanical play of the front and rear covers. 5 Insertion error prevention notch. 6 Insertion error prevention hole: Depth greater than 2.9 mm. 7 Rear label area: Depth 0.5 mm + 0.1 mm - 0.2 mm. 8 Index device

15、attachment portion: Depth 1 mm + 0.2 mm -0 mm, attachment plane step difference shall be less than 9 Cassette position control portion. the border of the attachment portion shall be visually indicated. of the cassette. 0.2 mm. 10 This dimension includes mechanical play of the front and rear covers.

16、11 Front cover opedclose axis center position. 12 Height dimension between cassette bottom cover and front cover bottom edge. 13 Space between front cover lock release button and front cover. 14 Front cover chamfer. Figure 3 - Cassette top and side view dimensions (2) Page 4 of 20 pages _ STDmSMPTE

17、317M-ENGL 1999 = 8357403 0003852 9TT SMPTE 317M-1999 Note9 I 6. 9f0. 2-1 ._ I cs V? m - t- .NO f t te7 plane Y 84 6*0. I I 1 52I -I nore thon C2 74tO. 15 C Note2 I 49iO i5 DI Jot Dimensions in millimeters Figure 4 - Cassette bottom and side view dimensions (1) Page 5 of 20 pages SMPTE 317M-1999 A No

18、tel B Notel C Note2 I I_ 04. 05 - )$p- 02 I I 4. 05 V Foreign motter absent fron oreo enc i osed by s (anted I i nes i c:bqtferdo; ng EE D Note2 - Foreign natIer absent fron oreo enclosed by siQnted lines GG Note5 $9 HH Note9 ut Foreign natter absent Fron area enclosed by slanted iines II Note9 Dime

19、nsions in millimeters NOTES 1 A and B respectively indicate the minimum room to accommodate VCR datum pins in datum holes A and B. 2 C and D respectively indicate the minimum room to accommodate VCR position determining pins, in position 3 Long direction insertion error prevention groove. 4 Front in

20、sertion error escape groove, depth: 2.5 mm + 0.5 mm - O mm. 5 Rear insertion error escape groove. 6 Sensor light source hole depth: More than 22 mm. 7 Sensor light path hole: Both left and right sensor hole position and shape are the same. 8 Reel brake release hole. 9 Changer grip: Both lefi and rig

21、ht changer grip position and shape are the same. determining holes C and D. C and D also include screw holes for securing the top and bottom cassette halves. 10 Front cover holding section: Raised portions can be provided at two locations in the bottom half. 11 Insertion error prevention wall shall

22、fulfill the following: Wall strength shall endure a force of 150 N. Cassette pull out force shall be less than 20 N. 12 Long direction insertion error escape groove: Groove shall be in the range indicated in the figure. Figure 5 - Cassette bottom and side view dimensions (2) Page 6 of 20 pages i U S

23、TDOSMPTE 317M-ENGL 1997 8357401 0003854 772 m SMPTE 317M-1999 p I one X KK 40? 15? 40? 25. Y ? -I ? -I Dimensions in millimeters Figure 6 - Cassette bottom and side view dimensions (3) Page 7 of 20 pages CMPTE 317M-1999 STD-SMPTE 317M-ENGL 3779 9 8357403 0003855 b09 - / Pos i t i on deternining hoe

24、D NOTES I Datum hole B mi I ng area A )lane X - Support i nQ area B Note2 .Supp i rting area D j I A I I l I 13.5 I- l J (49) - 76. 5 I ( 84. 6t0. 1) 1 90. 5 d I Dimensions in millimeters 1 Datum plane Z is determined by datum areas A, B, and C. 2 Supporting areas A, B, C, and D flatness shall be wi

25、thin 0.2 mm with respect to datum plane Z. Figure 7 - Cassette datum plane 2 and supporting areas Page 8 of 20 pages STD-SMPTE 3L7M-ENGL 3999 8357403 000385b 545 Noteb - Dotun plone Z / 5. 5 -I SMPTE 317M-1999 Dotun pione Y 1 I m Note5 I Dimensions in millimeters NOTES 1 Erase prevention hole: Erase

26、 prevention hole can be opened and closed by the erase prevention selector tab. The erase prevention selector tab moving force is 5 N + 3 N - 2 N. Recording enabled: When closed, indentation shall be less than 0.2 mm under 1 N pressing force. Erase prevention: When open, hole depth shall be more tha

27、n 3 mm. 2 D-9 cassette detector hole: Depth shall be more than 3 mm. 3 Spare hole A: Location for future expanded functions, currently no hole shall be provided. If providing indentation or 4 Spare hole B: For future cassette adapter detection; currently no hole shall be provided. 5 Spare hole C: Lo

28、cation for future expanded functions; currently no hole or indentation shall be provided. 6 Erase prevention selector area: Provide erase prevention selector tab in this area. This can also be provided on cassette lug, indentation shall be less than 0.2 mrn and lug endurance force shall be 20 N. bot

29、tom plane or rear plane. Figure 8 - Detector holes Page 9 o 20 pages SMPTE 317M-1999 - Dotun ptane Y STD-SMPTE 317M-ENGL 1999 8357403 0003657 4B3 M LT C +I U - r - NOTES Fixed tope guide pole pos it i on Note5 x ml Tape pad t I. o F I xed tape guide pole AA Note8 Sensor i ight +- /path center I -I I

30、 I 1 1310. 2 I Dimensions in millimeters 1 Fixed tape guide: Perpendicularity shall be within 27 minutes with respect to datum plane Z. Diameter and position along the Y axis shall be determined within the range to meet the specification of tape transport position (see figure 12, note 1). 2 Tape gui

31、de plane position: When the shape is altered to provide countermeasure to tape adhesion, the leading edge of the shape irregularity shall be specified. 3 Tape guide roller. 4 Fixed tape guide pole. 5 Fixed tape guide pole X washer position. 6 Tapepad. 7 Sensor light source center. 8 Sensor light pat

32、h center: Light path center height from datum plane Z is 12 mm f 0.1 mm. Figure 9 - Cassette internai construction Page 10 of 20 pages Section B deta; I Reel wobble and warpoqe Note3 Test blode position, I - Note4 1- l Test biade Ree I test stond Dimensions in millimeters NOTES 1 Hub diameter (H): 4

33、 26 mm f 0.15 mrn. 2 Lower flange diameter (D): I$ 90 mrn + 0.3 mm - O mm. 3 Reel wobble and warpage: When set on test stand indicated in figure and rotated, test blades shall not contact. 4 Test blade position: 20 mm from reel center. Figure 1 O - Reel dimensions Page 11 of 20 pages SMPTE 317M-1999

34、 STD-SMPTE 337M-ENGL 3777 = 8357403 O003859 254 D / / Dimensions in millimeters NOTES 1 Video tape center height. 2 Recorder reel disk height. 3 Reel standard operating position. shall not contact. the reel and cassette shall not contact. 1) When the reel is rotated in the range 2 mm + 0.8 mm - 0.7

35、mm from datum plane Z, the reel and cassette case 2) When the recorder rotates the reel in the range 2 mm * 0.4 mm from datum plane Z using the above cassette, 4 The reels shall be pressed down and this pressure shall be 1.75 N + 0.4 N - 0.2 N, as measured at the standard operating position of the r

36、eel. Figure 11 - Reel and reel disk relationship Page 12 of 20 pages STD=SMPTE 337M-ENGL 3999 8357403 O003860 T7b SMPTE 317M-1999 Tape tun plone magnet i c Tape base I ,Datun p(one Y Dimensions in millimeters NOTES 1 Tape transport position. 2 Supply reel side minimum tape pull out angle. 3 Take-up

37、reel side minimum tape pull out angle. 4 At the minimum tape pull out angle, the space between this edge and the tape shall be more than 1 mm. Chamfering (C or R) can be used for this edge. Figure 12 -Tape winding and pull oui angle Page 13 of 20 pages STD-SMPTE 3LM-ENGL 1999 8357q01 0003bL 902 9 SM

38、PTE 317M-1999 (1) Reel broke release position (Note 1) ,Releose lever Reel brake Dotun plane (3) Basic shape of reel brake release pin (Note 3) 2 reieose pin A (2) Reel brake release force (Note 2) Releose lever Datun plane Y Reel broke (4) Different pin shapes thon the basic shape of reei brake pin

39、 (Note 4) Dotun plane Y Dotun pione Z Inoinary center of lever . Different pin shapes I than the basic shope I 74 84 I release Dimensions in millimeters NOTES 1 The reel brake shall be released when reel brake release pin A indicated in the figure is inserted 8.5 mm from datum 2 The reel brake relea

40、se force shall be less than 0.7 N when reel brake release pin B indicated in the figure is 3 Basic shape of the recorder reel brake release pin: plane Z. inserted 9.5 mm from datum plane Z. a) Tip shape; b) Tip section pin diameter: c) Pin diameter at datum plane Z position; d) Pin insertion from da

41、tum plane Z. 4 The release pin shape and insertion distance o a recorder using a reel brake pin with a tip shape differing from the basic shape shall be designed so that the release lever rotation angle centered on the imaginary rotation support point is less than 23“. The insertion distance shall b

42、e more than 9.2 mm. Figure 13 - Reel brake release Page 14 of 20 pages STD-SMPTE 3L7M-ENGL 5979 8357403 0003862 849 CMPTE 317M-1999 (1) Front cover lock release button pressing position (3) The front cover opening distance ond force -Dotun ploi less than 16.5 Dotun le Y (2) Front cover lock releose

43、Note 2) Dotun pio Front cover lock release button I ,Datum done Y 78 i c O z L Dimensions in millimeters NOTES 1 Front cover lock release button pressing position. 2 The front cover lock shall be released when the front cover lock release button is pressed to the 1.6-mm position (M) from the casset

44、te shell. The release force shall be less than 0.15 N as measured at position L. 3 The front cover opening distance (U) shall be more than 33 mm from datum plane Z. 4 The front cover opening force shall be less than 1 N at the 27-mm opening distance. The opening force measuring 5 Front cover opening

45、 section: Insertion height from datum plane Z shall be more than 27 mm and less than 33 mm. position is 7 mm k 0.2 mm from datum plane X. Figure 14 - Front cover lock and operclose view Page 15 of 20 pages SMPTE 317M-1999 STD-SUPTE 3L7U-ENGL 1999 8357403 O003863 785 I ( 1) Front cover (2) Front cove

46、r (3) Front cover closed state mininun opening distance noximum opening dastonce Note 1 Reor cover Rear, cover Front cover r. (u Tope Reor cover Front cover Front cover (4) Front cover, Reor cover and tope space Note2 Front cover. 4u- Rear cover lope .y, Reor cover Dimensions in millimeters NOTES 1

47、When the front cover opening distance is 27 mm, the rear cover opening distance shall be more than 23.5 mm. 2 Spaces S and T between the rear cover bottom edge and the tape edge shall be more than 1 mm. S is the space between the rear cover bottom edge and the tape lower edge, which is measured when

48、 the tape lower edge is positioned at the same height as the bottom edge of the fixed tape guide. T is the space between the rear cover bottom edge and the tape upper edge, which is measured when the tape upper edge is positioned at the same height as the top edge of the fixed tape guide. Figure 15

49、 Rear cover openlclose view Page 16 of 20 pages - STD=SMPTE 317M-ENGL 1999 8357403 00038hY h11 D SMPTE 317M-1999 Datum plane Y I I n Dimensions in millimeters NOTE - Shaded portions indicate areas for the tape loading mechanism. Dimensions in parentheses are nominal values when the front cover opening distance is 27 mm. Figure 16 - Area for tape loading mechanism Page 17 of 20 pages SMPTE 317M-1999 r r- C C + L L - c U C C U c + L . NOTES Datum plane Y c/ hole A in millimeters 1 The eight locat