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10. OPTIONAL SA-K97U RS-232C INTERFACE BOARD
2-4 Others (Input data correction/Error cancellation)
These are return codes from the SR-9240E/EK. (Error-related codes only)
(1) ERROR (02H) : This is returned when commands of more than 1 byte are transmitted to the VCR and an illegal command is
received in the 2nd byte (or later) of the transmitted command.
In this status, no command can be accepted and only STATUS SENSE will be returned.
To restore normal operation, transmit CLEAR ERROR (41H) or CLEAR (56H) to the VCR.
CLEAR ERROR (41H) : Used to cancel previously-transmitted 1-byte numeric data when inputting
numeric data such as an Index search point. Also used to cancel error status.
CLEAR (56H) : Clears the whole command. Cancels the current status and stops the VCR. Also
cancels the error status.
Eg : After setting the recording/playback mode to “L24H”, 32H is mistakenly transmitted . Cancel 32H with
“41H” and input “33H” instead.
(2) NAK (0BH) : VCR will return this code when non-defined or non-functional command is received in the 1st byte of the
transmitted command. In this case, it is not necessary to input CLEAR. Check whether the transmitted command
is acceptable to the VCR or not.
TXD
7EH 30H 32H
RXD
0AH 0AH 0AH
Time
41H
0AH
33H
0AH
40H
0AH
3 Commands reference chart
VCR setting commands
Page
5Recording/playback mode 48
MODE SHIFT 48
MODE 48
5Timelapse VCR operation mode 48
TL STATUS 48
5Date and time setting 49
DATE SET 49
TIME SET 49
5Timer programming 49
PRG 49
SHIFT –/+ 49
SET –/+ 49
CANCEL 49
5On-screen setting 49
ON SCREEN ON/OFF 49
ON SCREEN SELECT 49
5Others 49
AL/PL RESET 49
COUNT RESET 49
VCR control commands
Page
OPERATE ON/OFF 47
PLAY/REV PLAY 47
STOP 47
FF/REW 47
TIMER ON/OFF 47
OPE ON/OFF 47
EJECT 47
F-FIELD STEP 47
REC CHECK 47
REC/REC PAUSE 47
VISS FWD/REV 47
VISS SEARCH 48
Commands for VCR status verification
Page Byte returned
from VCR
COUNT CODE 50 4 bytes
DEVICE TYPE 50 4 bytes
VTR INQ 50 1 byte
PL/AL COUNT SENSE 50 6 bytes
HOUR METER SENSE 50 5 bytes
TL STATUS SENSE 50 6 bytes
STATUS SENSE 51 5 bytes
DATA SENSE 50 6 bytes
TIME SENSE 50 6 bytes
Others
Page
JVC TABLE 1 ON/OFF 47
Return codes from VCR
Page
ACK 47
NAK 52
ERROR 52
CASSETTE OUT 47
COMPLETION 47
NOT TARGET 47
ALARM INPUT 51