JVC BR-DV600UA 45 pg user manual for BR-DV600U/E VTR (1130KB) - Page 20

11 RS-232C INTERFACE Contents of STATUS SENSE When the STATUS SENSE (D7H) command is sent, the following data (5 bytes) is returned. First byte Bit No. Status When the bit is 1 7 Always 1 6 Always 0 5 SHORT FF/REW During short FF or short REW 4 REC INHIBIT Recording is inhibited. 3 CASSETTE OUT There is no cassette loaded. 2 SERVO LOCK Servo is locked. 1 Undefined Always 0 0 ERROR An error has occurred. Second byte Bit No. Status 7 VIDEO EE 6 AUD 1 EE 5 VIDEO MUTE 4 AUD 1 MUTE 3 WARNING 2 DEW 1 TAPE BEGIN 0 TAPE END When the bit is 1 Video output is EE. Audio 1 output is EE. Always 0 Always 0 There is a problem with the VCR. Condensation has formed in the VCR. Short FF at the tape beginning Short REW at the tape end Third byte Bit No. Status 7 TIMER PLAY 6 TIMER REC 5 Unused 4 Unused 3 Unused 2 Unused 1 SEARCH MODE 0 Unused When the bit is 1 The [TIMER] switch is set to "PLAY". The [TIMER] switch is set to "REC". Always 0 Always 0 Always 0 Always 0 The VCR is in the Search mode Always 0 Fourth byte Bit No. Status 7 PLAY MODE 6 FF MODE 5 REW MODE 4 STOP MODE 3 STANDBY MODE 2 EJECT 1 REC MODE 0 Unused When the bit is 1 The VCR is playing back a tape. The VCR is fast-forwarding a tape. The VCR is rewinding a tape. The VCR is in the Stop mode. The VCR is on standby. A cassette is being ejected. The VCR is recording on a tape Unused Fifth byte Bit No. 7 6 5 Status PAUSE MODE Unused SHUTTLE FWD 4 SHUTTLE REV 3 SPEED CODE 3 2 SPEED CODE 2 1 SPEED CODE 1 0 SPEED CODE 0 When the bit is 1 The VCR temporarily stops. Always 0 The VCR is shuttle-searching in the forward direction. The VCR is shuttle-searching in the reverse direction. Speed code 3 Speed code 2 Speed code 1 Speed code 0 Search speed table (corresponding speed only) Search speed Speed code (bit No.) 3 2 1 0 STILL 0 0 0 0 0.1 0 0 1 0 0.2 0 0 1 1 0.3 0 1 0 0 1 0 1 0 1 2 0 1 1 0 5 0 1 1 1 10 1 0 0 1 36 11 RS-232C INTERFACE Contents of JVC STATUS SENSE When the STATUS SENSE (DDH) command is sent, the following data (4 bytes) is returned. First byte Bit No. Status 7 Always 1 6 Always 0 5 Unused 4 DMF 3 Unused 2 JVC TABLE 2 1 JVC TABLE 1 0 LOCAL When the bit is 1 Always 0 Always 0 Always 0 JVC TABLE 2 is effective. JVC TABLE 1 is effective. The [REMOTE] switch is set to "LOCAL". Second byte Bit No. Status When the bit is 1 7 TC GENERATOR The time code generator is in the TCG mode. 6 USERS BIT The counter mode is set to the UB mode. 5 TIME CODE The counter mode is set to the TC mode. 4 CTL PULSE The counter mode is set to the CTL mode. 3 CTL interpolation Always 0 2 DROP FRAME The current time code is set to the Drop Frame mode (U MODEL). Always 0 (E MODEL) 1 LTC Always 0 0 Unused Third byte Bit No. Status 7 TC REC RUN When the bit is 1 The TCG is set to the Rec Run mode. 6 TC REGEN The TCG is set to the REGEN mode. 5 TC EXTERNAL Always 0 4 TC INSERT LED Always 0 3 AUD 2 INSERT Always 0 LED 2 AUD 1 INSERT Always 0 LED 1 VIDEO INSERT Always 0 LED 0 ASSEM LED Assemble mode Fourth byte Bit No. Status When the bit is 1 7 TBC PWB IN Always 1 6 TC PWB IN Always 1 5 DA3 INSERT LED Always 0 4 DA4 INSERT LED Always 0 3 AUTO MODE Always 0 2 Unused Always 0 1 Unused 0 Unused Always 0 Always 0 Error-related commands This command is returned when transmitted data cannot be received normally by the VCR. A command to release the error status is also available. Command 02 41 56 0B Description ERROR: Returned when the VCR receives an invalid command after the second byte of the transmitted command. In this case, even though commands are sent continuously, no commands can be accepted except STATUS SENSE. To release this error mode, send the following commands. CLEAR ERROR: Clears the last transmitted byte. Use this to release the error mode as well. CLEAR: All commands are canceled. This is also used to release the error mode. NAK: Returned when the VCR receives an undefined command for the first byte or a command specifying a function not available on the VCR. Releasing the error mode with the CLEAR command is not necessary. Just send a correct command. * Usage example of CLEAR ERROR Specify the cue-up point at 1:10:10:25. As this data cannot be specified for the data following the CUE UP WITH DATA, correct the data. Mis-input TxD RxD 01 10 10 25 B2 30 31 31 30 31 30 33 41 32 35 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A 0A CLEAR ERROR 37