Panasonic AJ-SD755 - Manuals

Page 2 - IMPORTANT; indicates safety information.; THIS APPARATUS MUST BE GROUNDED

2 IMPORTANT “Unauthorized recording of copyrighted television programs, video tapes and other materials may infringe theright of copyright owners and be contrary to copyright laws.” indicates safety information. $ THIS APPARATUS MUST BE GROUNDED To ensure safe operation the three-pin plug must beins...

Page 3 - Introduction; Optional interface boards; SDI Interface Board; Use only the optional boards listed above.; Contents

3 Introduction The model AJ-SD755 multi-purpose studio-use digitalVTR employs 1/4-inch wide compact cassette tapes torecord, play back and edit material in the DVCPRO(25 Mbps) format.It is also capable of recording and playback in DVformat.These VTRs incorporate digital compressiontechnology to dram...

Page 4 - Features; Analog video input/output; Digital audio input/output connectors are provided.; IEEE1394 digital input/output

4 Features Multifunctional interface O Analog video input/output Both composite and component (Y, PB, PR) signalinputs/outputs are provided as standard. O SDI input/output Use of an SDI board (AJ-YA755G, optionalaccessory) enables input/output interfacing of theserial digital component signals. O AE...

Page 5 - Front panel; POWER switch; CMPST; Parts and their functions

5 Front panel 1 POWER switch 2 Format display area The recording format and the format of the tapeinserted in the unit are displayed here. DVCPRO: This indicates recording and playback ofDVCPRO (25 Mbps) format tapes. DV: This indicates recording and playback of DVformat tapes. 3 Cassette insertion ...

Page 8 - ASSEM button; PREROLL button; The standard scale (–

8 Front panel E ASSEM button This button is pressed to proceed with assembleediting.It has a self-illuminating lamp which comes ONwhen the button is pressed and goes OFF when itis pressed again. F INSERT buttons The input signals to be edited when insert editing isto be conducted are selected by pre...

Page 9 - MONITOR MIX button; Audio recording level control knobs; and

9 Front panel M MONITOR SELECT (L andR) buttons These buttons are used to select the audio signalswhich are to be output to the MONITOR L and Rconnectors.Each time the L button is pressed, the signal to beoutput to the MONITOR L connector is changed in thefollowing sequence: CH1 5 CH2 5 CUE. Similar...

Page 10 - DIAG button; The superimposed information is not output.; REC INH switch; CONTROL switch

10 Front panel V DIAG button When this button is pressed, the VTR information isdisplayed.When it is pressed again, the original display isrestored.The VTR information consists of the “WARNING”information, “HOURS METER” information and“UMID” information.Switching between the display of each type ofi...

Page 11 - Display panel; white

11 Display panel 1 WIDE lamp This lamp lights when 16:9 wide-screen informationis being recorded on a tape.Recording of wide-screen information can beselected on setup menu No. 645 (WIDE SELECT).This lights lamps during tape playback when wide-screen information has been recorded on the tape. 2 REMO...

Page 12 - Tape transport displays; The tape transport status is displayed here.; Format displays

12 9 EDIT, EDIT REC, REC and REC INH lampsEDIT: This lights when an editing mode has beenselected. EDIT REC: This lights when the edit recording mode hasbeen established. REC: This lights when the recording mode has beenestablished. REC INH: This lights in the recording inhibit status (whenthe REC I...

Page 13 - Rear panel; These are the analog audio input connectors.

13 Rear panel 1 AC IN socket Connect one end of the power cord supplied to thissocket and the other end to the power outlet. 2 DIGITAL AUDIO IN and OUT connectors These are the input and output connectors fordigital audio signals that comply with the AES/EBUstandards. <Note> The digital audio ...

Page 14 - on the front

14 Rear panel < Fan This fan is used to cool down the VTR.If, for any reason, the fan stops, “E-10” will appearon the counter display. = SIGNAL GND terminal This is connected to the signal ground terminal onthe component connected to this VTR in order tominimize noise. It is not a safety ground. ...

Page 15 - Connections

PUSH PUSH PUSH AC IN SIGNAL GND AES/EBU ANALOG CH1/2 IN Y VIDEO VIDEO OUT SERVICE ONLY REMOTE IN/OUT CH1 CH2 AUDIO IN ENCODER REMOTE RS-232C PARALLEL REMOTE OUT IN REF VIDEOIN ON OFF PB PR Y 1 2 (WFM) 3 (SUPER) PB PR CH1/2 OUT REMOTE 75 Ω ON OFF 75 Ω ANALOG TC IN TC OUT MON L MON R CH1 CH2 AUDIO OUT...

Page 16 - Connections with editing controller

16 Connections with editing controller Connections ON OFF POWER DV DVCPRO METER L R FULL/FINE MONITOR SELECT HEADPHONES MONITOR MIX INPUT SELECT PREVIEW/PREVIEW AUTO EDIT PREROLL VIDEO CH1 REC AUDIO CH2 CH1 CH2 TC PRESET MENU SET DIAG SUPER REC INH INT TCG MODE CONTROL ON OFF UNITY VAR PB COUNTER RE...

Page 17 - L cassette size; Consumer-use DV and DVCAM cassettes; M cassette size; Tapes

17 ON OFF POWER DV DVCPRO METER L R FULL/FINE MONITOR SELECT HEADPHONES MONITOR MIX INPUT SELECT PREVIEW/PREVIEW AUTO EDIT PREROLL VIDEO CH1 REC AUDIO CH2 CH1 CH2 TC PRESET MENU SET DIAG SUPER REC INH INT TCG MODE CONTROL ON OFF UNITY VAR PB COUNTER RESET A IN TRIM SET OUT IN A OUT CH2 CH1 INSERT AS...

Page 18 - Turn the search dial.

18 Jog mode Jog/Shuttle 1 Press the search dial so that it remains pressed in.Check that the JOG lamp has lighted. Shuttle mode 1 Press the search dial so that it is released from thepressed-in position.The SHTL lamp lights, and the shuttle mode isestablished. O Immediately after the power is turned...

Page 19 - Manual editing; Select the editing mode.; Preroll

19 Manual editing 1 Select the editing mode. ASSEMBLE: Assemble (frame-to-frame continuity) editing isperformed in this mode. INSERT: Insert editing is performed in this mode. 2 Select the channels to be edited.For insert editing, press the buttons correspondingto the channels to be edited so that t...

Page 20 - Automatic editing; Set the CONTROL switch to LOCAL.; Switch settings and adjustments; When using the AJ-SD755 as the recorder; Set the POWER switch to ON.; When using the AJ-SD755 as the player

20 Automatic editing (deck-to-deck) 1 Set the POWER switch to ON. 2 Use the INPUT SELECT buttons to select thevideo and audio input signals. 3 Switch the time counter display to TC, CTL or UB. 4 If the recording levels are to be adjusted using thelevel controls, set the audio level control selectors...

Page 21 - This sets the unit to insert editing mode.; Selecting the editing mode; Match frame processing function

21 Automatic editing (deck-to-deck) 1 Select the editing mode.For assemble editing, press the ASSEM button.For insert editing, press the INSERT button. ASSEM: This sets the unit to assemble (frame-to-framecontinuity) editing mode. INSERT: This sets the unit to insert editing mode. 2 Select the chann...

Page 22 - How to calculate the duration; When two edit points have been set:; Checking and previewing edit points

22 Automatic editing (deck-to-deck) 1 Press the IN (or OUT) button to check the editpoint. The value of the registered edit pointappears on the display panel. 2 While holding down the IN (or OUT) button, pressthe PREROLL button and check the picture at theedit point.The tape is cued up to the edit I...

Page 23 - Re-registering an edit point; Modifying edit points

23 Automatic editing (deck-to-deck) 1 Re-registering an edit point Locate the new edit point by performing the jog orshuttle operation, and press the IN (or OUT) buttonand SET button at the same time to re-register theedit point. 2 Modifying an edit point in 1-frame increments(trimming function) Pre...

Page 24 - Retry function

24 2 Upon completion of the editing, press the REVIEWbutton.Review is then started by the recorder side. O To stop the review at any time, press the STOPbutton. O When the edit OUT point is reached, the tape ispost-rolled, after which it stops. 1 Press the AUTO EDIT button.Automatic editing is now e...

Page 25 - Displaying the audio split edit points; The edit points appear on the display panel.; Cueing the tape up to the edit points; Audio split editing

25 $ Displaying the audio split edit points The edit points appear on the display panel. Video IN point: Press the IN button. Video OUT point: Press the OUT button. Audio IN point: Press the A IN button. Audio OUT point: Press the A OUT button. <Note> If the editing mode is changed to assemble...

Page 26 - Duration display; Between the video IN and OUT points:

26 Audio split editing $ Duration display The duration can be indicated on the display panelonly. Between the video IN and OUT points: Press the IN button and OUT button at the sametime. Between the audio IN and OUT points: Press the A IN button and A OUT button at thesame time. Match frame processi...

Page 27 - Variable memory editing

27 ON OFF POWER DV DVCPRO METER L R FULL/FINE MONITOR SELECT HEADPHONES MONITOR MIX INPUT SELECT PREVIEW/PREVIEW AUTO EDIT PREROLL VIDEO CH1 REC AUDIO CH2 CH1 CH2 TC PRESET MENU SET DIAG SUPER REC INH INT TCG MODE CONTROL ON OFF UNITY VAR PB COUNTER RESET A IN TRIM SET OUT IN A OUT CH2 CH1 INSERT AS...

Page 28 - Setup; number on the display flashes.; Changing the settings

28 4 Upon completion of the setting, release the searchbutton.The item number now flashes. O When the search dial is in the SHTL mode, theitem will move unless the dial is set to the centerposition. 5 When other items are to be changed, repeat steps 2 to 4 . 6 Press the SET button.The changes are st...

Page 29 - Setup menus; Changing the file; To set the lock mode:; Setting and releasing the lock mode; SYSTEM

29 Setup menus 1 Press the MENU button. 2 When the FF button is pressed while holding downthe DIAG button, the next user file is selected;conversely, when the REW button is pressed whileholding down the DIAG button, the previous userfile is selected. 3 To enter the selection made in step 2 for the u...

Page 30 - Loading user files

30 Setup menus 1 Press the MENU button. 2 Press the REW button or FF button while holdingdown the DIAG button to select the USER1 file. 4 Turn the search dial while holding down the searchbutton to select the user file whose contents are tobe loaded into USER1. 6 Press the PLAY button.The settings o...

Page 31 - Press the MENU button.; Saving user files; The number of the user file selected in step

31 Setup menus 1 Press the MENU button. 2 Press the REW button or FF button while holdingdown the DIAG button to select the USER1 file. 4 Turn the search dial while holding down the searchbutton to select the user file in which the contentsof USER1 are to be saved.Those user files whichhave been set...

Page 32 - SYSTEM menu

32 Setup menus SYSTEM menu No./Item Description The underlined items indicates the initial setting. 00 WFM SEL This selects the signal to output from theVIDEO OUT 2 connector. 0000 CTL : The CTL signal is output. 0001 TC : The TIME CODE signal isoutput. 0002 VIDEO : The VIDEO OUT signal isoutput. 00...

Page 34 - USER menu

34 Setup menus The underlined items indicates the initial setting. USER menu <BASIC> No./Item Description 000 P-ROLL TIME This sets the preroll time. The preroll time can be set from 0 to 15 secondsin 1-second increments. 0000 0s : : 0005 5s : : 0015 15s 001 LOCAL ENA This selects the buttons ...

Page 37 - Memory stop function

37 Setup menus The underlined items indicates the initial setting. USER menu <OPERATION> No./Item Description 111 FRZ MODESEL This selects the output picture in theSTANDBY OFF (HALF LOADING) and EJECTmodes. 0000 DIS : The video output is muted. 0001 STB OFF : When the STANDBY OFF (HALF LOADING...

Page 52 - Number of lines which can be set for TELETEXT

52 Setup menus The underlined items indicates the initial setting. USER menu <V BLANK> No./Item Description 803 TELETEXTDET 00 REC LINE1 : 12 REC LINE13 Sub-screen For selecting the method used to detect thelines in which the teletext signals are to berecorded. 0000 OFF : The teletext signals ...

Page 54 - Time code; TCR; User bit

54 Time code/user bit Time code The time code is used when the time code signalgenerated by the time code generator (time codesignal generator) is to be recorded on the tape, itsvalues are to be read by the time code reader (timecode signal reader), and the absolute position of thetape is to be disp...

Page 55 - Setting the external time code; Reproducing the time code/user bit; Set the VTR to stop mode.

55 Time code/user bit Setting the external time code 1 Set the VTR to stop mode. 3 Set the TCG switch to EXT. (External time codeselection) 4 The following settings can be selected with setupmenu No. 505 (EXT TC SEL). LTC: The LTC signal input to the TIME CODE INconnector (XLR) on the rear panel is ...

Page 56 - Display position; Superimpose screen; Characters displayed; the data has not been read correctly from the tape.; Operation mode

56 Display position The position of the characters superimposed on thedisplay can be changed using setup menus No. 009(CHARA H-POS) and No. 010 (CHARA V-POS). Superimpose screen The control signals, time code, etc. are displayedusing abbreviations. Characters displayed The background of characters s...

Page 57 - Video output signals and servo reference signal; When the REF VIDEO input signal is available:

57 Video output signals and servo reference signal This section explains how the output signals andservo reference signal are selected. External synchronization of videooutput signals The video output signals are output in synchronizationwith the REF VIDEO input signal or video input signal.As shown...

Page 58 - Servo reference signal

58 Video output signals and servo reference signal Servo reference signal The REF VIDEO input signal or video input signal isselected as the servo reference signal.As shown in the figure below, the signal is selected inaccordance with the setup menu settings, VTR modeand availability of the video in...

Page 59 - Audio V fade function

59 Audio V fade function When editing tapes, the edit point splicing selection(setup menu No. 311 and 312) information is recordedon the tape. This information is then sensed duringplayback, and V fade or cut processing isautomatically performed for these sections. However, only when the playback fa...

Page 60 - Audio recording channel and monitor output selection; Audio recording channel; Printed circuit board

60 Audio recording channel and monitor output selection Audio recording channel The audio recording channels are selected on theAUDIO setup menu as shown below. Recording track CH1 Recording signal CH1 input/CH2 input/CH1 input+CH2 input CH2 CH1 input/CH2 input/CH1 input+CH2 input CUE CH1 input/CH2 ...

Page 61 - Rack mounting

61 A B C D E F G H 2 Attach the outer member brackets to the rack.Check that the height is the same for the left andright brackets. 3 Remove the four screws at the front for attachingthe left and right side panels. 4 Attach the AJ-MA75P rack mount adapter usingthe same 4 screws. 1 Attach the inner m...

Page 62 - Attaching the dust cover

62 This unit is equipped with an auto head cleaningfunction which automatically reduces the amount ofdirt on the video heads. However, in order tomaximize the unit’s reliability, it is recommended thatthe video heads be cleaned as and when appropriate. For further details on how to actually clean th...

Page 63 - DIAG menu; Displaying the DIAG menu; Error messages; “HOURS; “WARNING” information display

63 When a warning occurs in this unit, the error numberis indicated on the counter display.Open the DIAG menu to display a description of theerror on the counter display or monitor TV.When a operational malfunction has occurred in theunit, the error number flashes on the counter display. DIAG menu T...

Page 64 - Turn the search dial to move the cursor (; UMID information display

64 H04 F LOADING Displays the number of times front loading hasbeen performed in single units. $ Displaying the “HOURS METER”information Turn the search dial to move the cursor ( 2 ). The description for the item where the cursor islocated is shown on the counter display. If “T&S&M” is selec...

Page 65 - Warning messages

65 Warning messages Error messages Priority O Monitor display O Description O VTR operation and corrective action High E-04 (UNKNOWN SIG) This appears when the SDTI input signals are notDVCPRO or DV format signals. (The data streamformat complies with the SMPTE 321M standard.) VTR: No recording oper...

Page 68 - Hardware specifications; External interface specifications; Connector specifications

68 The VTR can be operated by commands when theRS-232C interface is used.(See command table on pages 71, 72.) $ Conditions for acknowledgingcommands from RS-232C interface O The front panel CONTROL switch must be atREMOTE. O The setup menu No. 204 “RS232C SEL” must beON. If the above conditions are ...

Page 69 - Communication parameters; Data format; XX XX XX; Outline of send procedure from controller

69 Software specifications (Protocol) 1. Communication parameters RS-232C interface Communicationsystem Asynchronous, full duplex Communicationspeed 300/600/1200/2400/4800/9600 Bit length 7bit/8 bit Stop bit 1 bit/2 bit Parity bit NONE/ODD/EVEN ACK code ACK code returned/ACK code not returned <No...

Page 71 - Commands relating to operation control

71 RS-232C interface 5. Command table $ Commands relating to operation control <Notes> O As for the return (completion) message, [ACK] isfirst returned when data is received, and theexecution message is subsequently returned. Itis only the execution message which is listed inthis table. O In t...

Page 72 - Commands relating to inquiries

72 RS-232C interface $ Commands relating to inquiries <Notes> O As for the return (completion) message, [ACK] isfirst returned when data is received, and theexecution message is subsequently returned. Itis only the execution message which is listed inthis table. O In the case of commands not l...

Page 73 - SDTI interface; transfer signals in the DVCPRO format.; Connections involving two units

73 SDTI interface Digital data input/output operations using the SDTIformat (compressed digital interface) are enabled byinstalling the AJ-YAC930G SDTI board (optionalaccessory) in this unit. <Notes> SDTI (Serial Data Transport Interface) complies withthe SMPTE 305M standard.The data stream fo...

Page 74 - Connector signals; VIDEO IN; REMOTE OUT

74 Connector signals VIDEO IN SDI IN(DIGITAL) BNC a 2, Active through (Option) Y, PB, PR(ANALOG) BNC a 3 VIDEO IN BNC a 2, Loop-through, 75 Ω termination switch provided REF VIDEO IN BNC a 2, Loop-through, 75 Ω termination switch provided AUDIO IN SDI IN(DIGITAL) BNC a 2, Active through (Option) AUD...

Page 75 - edge electrical signal.

75 Connector signals PARALLEL REMOTE (25P) Pin No. Signal 1 PLAY COMMAND 2 STOP COMMAND 3 FF COMMAND 4 REW COMMAND 5 REC COMMAND 6 EJECT COMMAND 7 STAND BY COMMAND 8 PREROLL COMMAND 9 IN SET COMMAND 10 ==== 11 ==== 12 6 10 V, MAX 300 mA 13 PLAY STATUS 14 STOP STATUS 15 FF STATUS 16 REW STATUS 17 REC...

Page 76 - Specifications; Digital video

76 [GENERAL] indicates safety information. Power supply: AC 100 – 240 V, 50 – 60 Hz Power consumption: 110 W (with all options) Operating ambient temperature: 41°F to 104°F (5°C to 40°C) Operating ambient humidity: 10% to 80% (no condensation) Weight: 33.0 lb (15.0 kg) Dimensions (W a H a D): 16 3 /...