20.1 GOT Restoration Sheet
20
- 3
17
ADDI
TIO
N
TIMES
RE
SET FOR
MA
INTENA
N
C
E
18
INST
ALL
A
TI
ON OF
B
O
OT
O
S
A
ND
ST
A
N
DA
RD OS
19
MAIN
TE
NANCE A
ND
INSP
ECTIO
N
20
ERROR MESS
AGE
AND SYSTE
M
ALA
R
M
AP
PENDI
C
E
S
IND
E
X
*1
For models using STN monochrome LCDs, unintended lines may be seen flowing from the displayed line.
Note that this phenomenon is a feature of the product, not a defect or fault.
Phenomenon
Cause/status
Action
(d) Screen display
The screen is completely
black.
The LCD or BootOS may be failty.
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.
The screen is completely
white.
The GOT hardware may be faulty.
Proceed to (5) Troubled product
investigation.
A line is displayed on the
screen.
*1
The GOT hardware may be faulty.
Example: A vertical line is displayed. Proceed to (5) Troubled product
investigation.
Other faulty displays
The screen freezes.
The screen display is not updated and any
operation is not allowed.
Proceed to (1)-(e).
(e) Buzzer sound
Does not sound.
Buzzer sound:
( )
Example: The rhythm as three beeps, one
beep, and then two beeps is
repeated.
Proceed to (2) Status of the GOT
when it freezes.
Continues to beep
randomly.
Continues to beep in a
particular pattern.
Beeps continuously.
The read device of the system information
may have turned ON when the device was
set, turning ON the Buzzer output signal.
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.
