JVC SR-9168U appendix 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-9168U. (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 “L18H”, 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	46
PLAY/REV PLAY	46
STOP	46
FF/REW	46
TIMER ON/OFF	46
OPE ON/OFF	46
EJECT	46
F-FIELD STEP	46
REC CHECK	46
REC/REC PAUSE	46
VISS FWD/REV	46
VISS SEARCH	47

Commands for VCR status verification

	Page	Byte returned
		from VCR
COUNT CODE	49	4 bytes
DEVICE TYPE	49	4 bytes
VTR INQ	49	1 byte
PL/AL COUNT SENSE	49	6 bytes
HOUR METER SENSE	49	5 bytes
TL STATUS SENSE	49	6 bytes
STATUS SENSE	50	5 bytes
DATA SENSE	49	6 bytes
TIME SENSE	49	6 bytes

VCR setting commands

	Page
5Recording/playback mode	47
MODE SHIFT	47
MODE	47
5Timelapse VCR operation mode	47
TL STATUS	47
5Date and time setting	48
DATE SET	48
TIME SET	48
5Timer programming	48
PRG	48
SHIFT –/+	48
SET –/+	48
CANCEL	48
5On-screen setting	48
ON SCREEN ON/OFF	48
ON SCREEN SELECT	48
5Others	48
AL/PL RESET	48
COUNT RESET	48
Return codes from VCR
	Page
ACK	46
NAK	51
ERROR	51
CASSETTE OUT	46
COMPLETION	46
NOT TARGET	46
ALARM INPUT	50
Others
	Page
JVC TABLE 1 ON/OFF	46

51