Mitsubishi Electric GT1695M-XTBD User Manual page 424

Phenomenon
(d) Screen display
The screen is completely
black.
The screen is completely
white.
A line is displayed on the
screen.
Other faulty displays
The screen freezes.
(e) Buzzer sound
Does not sound.
Continues to beep
randomly.
Continues to beep in a
particular pattern.
Beeps continuously.
16
16.1 GOT Restoration Sheet
- 3
Cause/status
The LCD or BootOS may be failty.
The GOT hardware may be faulty.
The GOT hardware may be faulty.
Example: A vertical line is displayed. Proceed to (5) Troubled product
The screen display is not updated and any
operation is not allowed.
Buzzer sound:
(
Example: The rhythm as three beeps, one
beep, and then two beeps is
repeated.
The read device of the system information
may have turned ON when the device was
set, turning ON the Buzzer output signal.
Action
Perform the following in order.
1) Reinstalling BootOS
2) Reinstalling standard monitor OS
If the GOT is not restored by 1) and
2), perform the following.
3) Reinstalling CoreOS and then
standard monitor OS
If the GOT is not restored by the
above operations, proceed to (5)
Troubled product investigation.
Proceed to (5) Troubled product
investigation.
investigation.
Proceed to (1)-(e).
)
Proceed to (2) Status of the GOT
when it freezes.
Check the setting of the read device.
When the Buzzer output signal has
no error, proceed to (2) Status of the
GOT when it freezes.