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2-2 VCR setting commands
Commands available include control of recording/playback mode setting, timelapse VCR operation mode setting, date and time setting, timer
programming, on-screen setting, and others.
5Recording/playback mode setting commands
Two commands are available. One allows you to rotate through recording/playback modes, the other permits you to directly select the
mode.
(1) MODE SHIFT (7DH) :Switches from one recording/playback mode to the next each time
the command is transmitted. Use the TL STATUS SENSE (D6H)
command to check the current mode. (See section 2-3 (8).)
Transmit 1 byte at a time with “ACK” (0AH) confirmation from the
VCR after each transmission.
(2) MODE (7EH) :Sets recording/playback mode directly.
After transmitting this command, transmit the appropriate 2-byte
ASCII codes (from 30H to 39H) and the data input command (40H).
Correspondence of ASCII codes with recording/playback modes is as
shown below.
Eg: To set to “L24H”.
After transmitting the VISS SEARCH command (17), transmit the appropriate 2-byte numeric data (from 30H to 39H), the data input command
(40H), and either FF (ABH) or REW (ACH). All commands should be transmitted separately one byte at a time with “ACK” (0AH) confirmation
from the VCR after each transmission.
(17) VISS SEARCH (B3H) : To search for a designated INDEX point on the tape.
The VCR starts INDEX search after returning “ACK”. When the specified point is reached, the VCR returns COMPLETION (01H). If the end
or beginning of the tape is reached before the specified point, the VCR returns NOT TARGET (05H).
This command differs from commands (15) and (16) only in that the FF (ABH) or REW (ACH) command is included separately.
10. OPTIONAL SA-K97U RS-232C INTERFACE BOARD
1st byte 2nd byte
BIT When the bit is “1” BIT When the bit is “1”
0 Repeat recording function ON 0 Unused
1 Unused 1 Alarm recording function ON
2 Auto REC mode ON 2 Unused
3 Auto rewind ON 3 Sensor recording function ON
4 Unused 4 External recording function ON
5 Series recording function ON 5 Unused
6 Tape end buzzer ON during recording 6 Index search function ON
7 Alarm recording buzzer ON 7 Warning buzzer ON
3rd byte
BIT When the bit is “1”
0 Unused
1 Summer time compensation ON
2 Unused
3 Unused
4 Unused
5 Video mode set to “B/W” (black and white)
6 Unused
7 Unused
TXD
86H 1st byte
0AH 0AH
Time
2nd byte
0AH
3rd byte
0AH
RXD
(1) TL STATUS SET (86H) : Set the timelapse VCR operation mode with 3-byte data. Send one byte at a time by checking
ACK (0AH) from the VCR.
• The setting details for the first to the third bytes are shown below.
5 Timelapse VCR operation mode setting commands
Mode 1st byte 2nd byte
SP 30H 30H
(LP 30H 31H)
L12H 30H 32H
L24H 30H 33H
48H 30H 34H
72H 30H 35H
96H 31H 36H
120H 30H 37H
168H 30H 38H
240H 30H 39H
Modes in parentheses are
available only in the Play mode.
TXD
7EH 30H 33H
RXD
0AH 0AH 0AH
Time
40H
0AH