LV-7575 Basic Serial Command Functional Specifications

BASIC SERIAL COMMAND FUNCTIONAL SPECIFICATIONS

LV-7575

Contents

1. Overview ..... 5
2. Serial Interface Specification ..... 5
   2.1. Transfer Specification ..... 5
   2.2. Connection ..... 5
3. Notes for Communication ..... 6
4. Functional Execution Command Table ..... 7
5. Status Read Command Table ..... 9
6. Functional Execution Command ..... 10
   6.1 Format ..... 10
   6.2 When the command pipelining is needed ..... 10
   6.3 Transfer Example ..... 10
   6.4 Operation Requirements ..... 11
   6.5 POWER ON Command ..... 11
   6.6 POWER OFF Command (Quick POWER OFF) ..... 11
   6.7 POWER OFF Command ..... 11
   6.8 INPUT 1 Command ..... 12
   6.9 INPUT 2 Command ..... 12
   6.10 INPUT 3 Command ..... 12
   6.11 NETWORK Command ..... 12
   6.12 VOLUME + Command ..... 12
   6.13 VOLUME – Command ..... 12
   6.14 SOUND MUTE ON Command ..... 13
   6.15 SOUND MUTE OFF Command ..... 13
   6.16 VIDEO MUTE ON Command ..... 13
   6.17 VIDEO MUTE OFF Command ..... 13
   6.18 SCREEN NORMAL SIZE Command ..... 13
   6.19 SCREEN WIDE SIZE Command ..... 13
   6.20 MENU ON Command ..... 14
   6.21 MENU OFF Command ..... 14
   6.22 DISPLAY CLEAR Command ..... 14
   6.23 BRIGHTNESS + Command ..... 14
   6.24 BRIGHTNESS - Command ..... 14
   6.25 INPUT 2 VIDEO Command ..... 14
   6.26 INPUT 2 Y,Pb/Cb,Pr/Cr Command ..... 14
   6.27 INPUT 2 RGB Command ..... 15
   6.28 IMAGE Command ..... 15
   6.29 ON START SET Command ..... 15
   6.30 ON START CANCEL Command ..... 15
   6.31 POWER MANAGEMENT READY Command ..... 15

6.32 POWER MANAGEMENT CANCEL Command.....15
6.33 POWER MANAGEMENT SHUTDOWN Command.....16
6.34 D.ZOOM + Command.....16
6.35 D.ZOOM - Command.....16
6.36 INPUT 3 VIDEO Command.....16
6.37 INPUT 3 S-VIDEO Command.....16
6.38 INPUT 3 Y,Pb/Cb,Pr/Cr Command.....16
6.39 POINTER RIGHT Command.....17
6.40 POINTER LEFT Command.....17
6.41 POINTER UP Command.....17
6.42 POINTER DOWN Command.....17
6.43 ENTER Command.....17
6.44 FREEZE ON Command.....17
6.45 FREEZE OFF Command.....18
6.46 ZOOM + Command.....18
6.47 ZOOM - Command.....18
6.48 FOCUS + Command.....18
6.49 FOCUS - Command.....18
6.50 COLOR MANAGEMENT Command.....18
6.51 INPUT 1 ANALOG RGB Command.....19
6.52 INPUT 1 SCART Command.....19
6.53 INPUT 1 DVI (PC DIGITAL) Command.....19
6.54 INPUT 1 DVI (AV HDCP) Command.....19
6.55 INPUT 1 MONITOR OUT Command.....19
6.56 LENS SHIFT + Command.....19
6.57 LENS SHIFT - Command.....19
6.58 AUTO PC ADJ. Command.....20
6.59 PRESENTATION TIMER Command.....20
6.60 KEYSTONE ↑ Command.....20
6.61 KEYSTONE ↓ Command.....20
6.62 KEYSTONE → Command.....20
6.63 KEYSTONE ← Command.....21
Status Read Command.....22
7.1 Format.....22
7.2 Transfer Example.....22
7.3 Status Read Command.....22
7.4 Input Mode Read Command.....25
7.5 Lamp Time Read Command.....25
7.6 Setting Read Command.....25
7.7 Temp Read Command.....25

7.8 Lamp Mode Read Command .....26

1. Overview

• These specifications define projector control commands for LV-7575.

The projector control commands are used to control a projector through RS-232C from a computer.

2. Serial Interface Specification

2.1. Transfer Specification

① Transmission speed: initial setting value is 19200.

② Transmission speed can be changed in service mode.

2.2. Connection

Dedicated serial cable that comes with the projector must be used for the connection between computer and projector.

3. Notes for Communication

• The projector command is defined as one command per line that starts with "C" and ends with carriage return (0x0D).

• When carriage return (0x0D) is received, decoding starts.

There are two types of commands; Functional Execution Commands which function in a way comparable to remote and console keys and Status Read Commands which get basic statuses of projector.

Example of Functional Execution Command: "C05" [CR]

Example of Status Read Command: "CR0" [CR]

• In the cases below, it clears information of receive buffer.

1. When LF (0x0A) and EOF (0x1A) are received

2. When it takes more than a second to receive one command (until the projector receives carriage return since it has received the first data)

• or the pipelining of Functional Execution Command, allow the following interval time after receiving return value.

1. Commands "VOLUME +/-", "ZOOM UP/DOWN", "FOCUS UP/DOWN" and "LENS-SHIFT UP/DOWN/RIGHT" --> 100ms

2. Other commands --> 500ms

For the pipelining of Status Read Command, allow more than 500 ms of interval time after reception of return value.

Do not send any subsequent command before reception of return value; however this is not the case when no response is returned after more than 5 seconds.

It takes about 7 seconds for internal initialization after plugging in AC power. During this time, it cannot process commands. Do not issue any command.

During 7 seconds after powering on in Standby mode, when the command for internal initialization or lamp lighting is received, ACK value is returned but the function is not executed. However, for Status Read Command, the function is executed in 500 ms after receiving ACK value for POWER ON command.

During countdown and cooling operations:

During countdown operation after execution of power-on, as well as during cooling operation after

execution of power-off, ACK value is returned but the function is not executed when command is

received.

• On