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The illustration of the response structure is as follows:
<Response> = <Start of Response><Result Code> [<sp><Parameters>]<End of Response>
<Start of Response> = @, ASCII 0x40 <Result Code> = OKER
<sp> = space, ASCII 0x20 <Parameters> =
Command Sequence:
Commands are executed in the order they are received. The host should wait for a response from the player before sending the next command.
If the player receives a new command before executing the previous command, the player may discard the previous command.
If the host does not receive a response from the player 10 seconds after the command is issued, the host may consider the command or response lost during transmission, and can retransmit the command.
Command List:
A. Command that maps to a remote control button
This group of commands maps directly to the infrared remote control keys. No parameters are needed for these commands. The player handles the commands as if it receives the same IR remote commands. For actions that require multiple key sequence, such as go to a certain chapter (GOT command followed by multiple numeric key commands and the SEL command), the player responds to each command individually until the last command is received. At that time the player shall respond with either OK or ER depending on the result of the action.
Code | Remote Key | Function | Special Response |
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POW | POWER | Toggle power STANDBY and ON | OK ON |
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| OK OFF |
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SRC | SOURCE | Go to Home Menuto select media source |
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EJT | OPEN | Open/close the disc tray | OK OPEN |
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| OK CLOSE |
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PON | ON | Discrete on | OK ON |
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POF | OFF | Discrete off | OK OFF |
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SYS | P/N | Switch output TV system: NSTC, PAL or | OK NTSC |
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| MULTI(AUTO) | OK PAL |
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| OK AUTO |
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DIM | DIMMER | Dim front panel display | OK ON |
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| OK DIM |
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| OK OFF |
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PUR | PURE AUDIO | Pure audio mode (no video) | OK ON |
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| OK OFF |
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VUP | VOL + | Increase volume | OK n (n is the volume |
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| number, 0 – 100) |
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VDN | VOL - | Decrease volume | OK n (n is the volume |
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| number, 0 – 100) |
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MUT | MUTE | Mute audio | OK MUTE |
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| OK UNMUTE |
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NU1 | 1 | Numeric key 1 |
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NU2 | 2 | Numeric key 2 |
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