Mitsubishi Electric GOT SIMPLE Series Operation Manual page 108

■Check of the POWER LED
Check Symptom
□ Lit in blue.
□ Lit in orange.
□ Blinking in orange and blue.
□ Not lit
■Check of the screen display
Check Symptom
□ The screen is black.
□ The screen is white.
□ A line is displayed on the screen.
□ Other faulty displays
□ The screen freezes.
■Check of buzzer sound
Check Symptom
□ No buzzer sound
□ Continues to beep randomly.
□ Continues to beep in a particular
pattern.
□ Beeps continuously.
11 TROUBLESHOOTING
106
11.1 GOT Restoration Sheets
Cause/status
The power is supplied normally.
Screen saving is being performed.
When the read device of the system information
was set, the device was turned on and the screen
was switched to the forced screen saving status.
A backlight failure has occurred.
The power is not supplied.
If the power is supplied, the GOT hardware may
be faulty.
Cause/status
The LCD or basic software may be faulty.
The GOT hardware may be faulty.
The GOT hardware may be faulty.
Example: A vertical line is displayed.
The screen display is not updated and operation
is unavailable.
Cause/status
-
Buzzer sound:
• Example: The rhythm repeats as three beeps,
one beep, and two beeps.
When the read device of the system information
was set, the device was turned on and the Buzzer
Output signal was input.
Corrective action
Proceed to the following.
Check of the screen display
Check the setting of the read device.
If no problem is found in the setting, proceed to the
following.
Check of the screen display
Proceed to the following.
Faulty product investigation
Check if the power is supplied.
If the GOT is not restored, proceed to the following.
Faulty product investigation
Corrective action
Perform the following in order.
1) Write the package data again.
2) Install the basic software again.
If the GOT is not restored by the above operations,
proceed to the following.
Faulty product investigation
Proceed to the following.
Faulty product investigation
Proceed to the following.
Check of buzzer sound
Corrective action
Proceed to the following.
Status of the GOT when it freezes (screen operation
stopped)
Check the setting of the read device.
If the Buzzer Output signal has no error, proceed to the
following.
Status of the GOT when it freezes (screen operation
stopped)