[RS-232C control flowchart]
| START |
|
| Sending out command |
|
No NAK returned |
| No response for |
Awaiting response | 1 second or longer | |
| from projector |
|
| NAK returned |
|
Command is sent successfully.
Command is executed successfully.
Checking execution of command (sending out check command)
OK
END
|
|
| Command is sent successfully. |
| |
|
|
| Command execution fails. |
| |
|
|
|
|
| |
|
|
| |||
|
| ||||
| Check the following. | ||||
| • | The ID code is out of the valid range. | |||
| • | Check that the function code is | |||
| • | correct. | |||
| Check that the data code is correct. | ||||
NG | • | Check that the projector is able to | |||
| issue the return command. | ||||
|
| ||||
→Check the projector’s operation using the 00vST command.
Note: In the following cases, NAK is
returned even when the projector is in normal condition.
•Immediately after the power is turned on
(For status read commands) approximately for 10 seconds (For other commands) approxi- mately for 1 minute
•During input switching
•During auto positioning
•During password lock
Command sending fails.
Check the following.
•Check that the command begins with “00”.
•The projector is not supplied with AC power.
→Check that AC power cord is connected.
→Turn on the power. (Turn on the circuit breaker or main switch.)
•Not connected with the projector.
→Check that the
→Check the
•There is no projector with the specified ID in the daisy chain configuration.
→Check that the ID is correct.
→Check whether that there is a projector of which power (AC) is turned off in the daisy chain configuration.
[Method of checking state of projector]
Sending “00vST”
To normal operation | Checking response to “00vST” | 4 | ||
|
| |||
|
| 6 | 5 |
|
Projector error
Send out “00vER” to check error details.
Recover from error state.
Enter password. | Projector is functioning. |
Send out “00PASS****.” | Use “00FNCOFF” to cancel the current function. |
6
