JVC SR-9240EK Others Input data correction/Error cancellation, Commands reference chart

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.

TXD

7EH

30H

32H

41H

33H

40H

RXD

0AH

0AH

0AH

0AH

0AH

0AH

Time

(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.

3 Commands reference chart

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

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
Return codes from VCR
	Page
ACK	47
NAK	52
ERROR	52
CASSETTE OUT	47
COMPLETION	47
NOT TARGET	47
ALARM INPUT	51
Others
	Page
JVC TABLE 1 ON/OFF	47

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