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Resumen del manual
is complete. 03CASSETTE OUT : The VCR outputs this command when RS232C ejected the tape. 05NOT TARGET : The VCR outputs this command when the operation specified with Cue Up with Data/ Preroll failed to be completed. 0A ACK : This command is returned when a defined command is received. . Error commands These are commands that are returned when transmitted data cannot be received by the VCR properly. Commands that release errors are also available. Command Description 02ERROR : This command is returned when the VCR receives an invalid command after the second byte of a multi-byte command. In this case, even if other commands are sent continuously, no command can be accepted. However, status sense codes can be received. To release errors, use the following commands. 41ERROR CLEAR : Clears the last transmitted byte. Also use this command to release errors. 56CLEAR : Cancels whole commands. Also use this command to release errors. 0B NAK : Returned when the VCR receives an undefined command for the first byte or a command specifying a function not available for the VCR. Releasing the error with the CLEAR command is not necessary. Send the correct command. . Example of CLEAR ERROR Specify the cue-up point at 1:10:10:25. The specified data after the CUE UP WITH DATA command is invalid. Correct it with the CLEAR ERROR command. Input error B20A300A310A310A300A310A300A334132350A0A0A0A01 10 10 25 TxD RxD CLEAR ERROR . Information gathering (sense) commands These commands are used to check the VCR operation status. When a command corresponding to requested information is received by the VCR, data is returned in 1-byte packets. The number of bytes returned differs depending on the command. Table Command Description J1 72 ROM VERSION : For checking the RS-232C interface- related ROM version. 3-byte data is returned. BE DATA SENSE : For checking the VCR’s date data.The data is returned in order of month, date and year. During playback, the time data on the tape is returned. BF TIME SENSE : For checking the VCR’s time data.The data is returned in order of hour, minute and second. During playback, the time data on the tape is returned. J1 D1 DEVICE TYPE : For checking the device type. D: 44h, V:56h, 6:36h, K:4Bh J1 D4 TAPE REMAIN SENSE : For checking the tape remaining time. 3-byte data is returned showing the hour (one’s place) and minutes (ten’s place and one’s place). B D6 PREROLL SENSE : For checking the preroll time. 2-byte data is returned showing the seconds (ten’s place and one’s place). D7 STATUS SENSE : For checking the status. Refer to STATUS SENSE. (. Page 90) Table Command Description D8 CURRENT TC SENSE : For checking the time code data. The data is returned in the order of hour, minute, second and frame. Effective when the counter mode is set to TC. D9 CURRENT CTL SENSE : For checking the CTL data. The uppermost digit shows positive or negative.Effective when the counter mode is set to CTL. B DA IN DATA SENSE : For checking the edit-in position. The data is returned in the order of hour, minute, second and frame. B DB OUT DATA SENSE : For checking the edit-out position. The data is returned in the order of hour, minute, second and frame. B DC CURRENT TC UB SENSE : For checking the user’s bit data. Data A from F is represented with ASCII code 41h to 46h. Effective when the counter mode is set to UB. DD JVC STATUS SENSE : For checking the status. Refer to JVC STATUS SENSE. (. Page 91) FB VTR IND : For checking VCR connection. RS-232C INTERFACE – RS-232C commands – (continued) D7: STATUS SENSE This section describes 5-byte data that are re turned when the STATUS SENSE (D7H) com mand is sent. . First byte . Fifth byte Bit No. Status: If the bit is 1 7 Always 1 6 Always 0 5 SHORT FF/REW : In short FF or short REW 4 REC INHIBIT : Recording prohibited 3 CASSETTE OUT : No cassette tape loaded 2 SERVO LOCK : Servo locked 1 Undefined : Always 0 0 ERROR : Error occurring Bit No. Status: If the bit is 1 7 PAUSE MODE : VCR paused 6 Unused : Always 0 5 SHUTTLE FWD : VCR forward shuttle-searching 4 SHUTTLE REV : VCR reverse shuttle-searching 3 SPEED CODE3 : Refer to the following table. 2 SPEED CODE2 : Refer to the following table. 1 SPEED CODE1 : Refer to the following table. 0 SPEED CODE0 : Refer to the following table. . Second byte Search speed table (Supported speed only) Bit No. Status: If the bit is 1 7 VIDEO EE : Video output in the EE mode 6 AUD EE : Audio 1 output in the EE mode 5 VIDEO MUTE : Video signals muted 4 AUD MUTE : Audio signals muted 3 WARNING : Problem with the VCR 2 DEW : Condensation in the VCR 1 TAPE BEGIN : Short FF at the tape beginning. 0 TAPE END : Short REW at the tape end Bit No. Status: If the bit is 1 7 TIMER PLAY : TIMER switch set to PLAY 6 TIMER REC : TIMER switch set to REC 5 Unused : Always 0 4 REPEAT : REPEAT PLAYBACK mode ON 3 Unused : Always 0 2 REPEAT MODE : Repeat playback in operation 1 SEARCH MODE : VCR being cueing-up/prerolling 0 Unused : Always 0 . Third byte ( ): PAL Searc...