Mitsubishi Electronics FL7000U RS-232C control flowchart, Method of checking state of projector

[RS-232C control flowchart]

START
Sending out command
Awaiting response	Yes
from projector
No response for

1 second or longer

Sending command again

Awaiting response	Yes	1
from projector

1

Checking execution of	Yes	END
command (sending out
check command)

No

Sending command again

No response for

1 second or longer

Less than

10 times Number of trials without response

10th trial

Check the following.

•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 RS-232C cable is connected.

→Check the RS-232C cable for electrical discontinuity.

•The projector is in the state of being unable to send out a command.

→Use command “00vST” to check if the projector operates normally.

[Method of checking state of projector]

Sending “00vST”

Note: In the following conditions, the projector does not respond even if it operates normally.

•Immediately after turning on the power (for about 20 seconds to 2 minutes)

•During switching signals (about 10 seconds)

•In the process of the auto position (about 10 seconds)

•During locking the password

	0–3		4	Projector error
To normal operation		Checking response to “00vST”		Send out “00vER” to check error details.

Recover from error state.

6

5

Enter password.

Send out “00PASS****.”

Projector is functioning.

Use “00FNCOFF” to cancel the current function.

3