Check the GOT starting from (1) GOT status.
Proceed as instructed by "Action".
(1) GOT status
Phenomenon | Cause/status | Action |
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(a) Frequency when the GOT does not operate, an error occurs on the screen, etc.
Occurs always. | Occurrence frequency: |
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Occurs sometimes. | ||||||||||
Example: Once a month |
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(b) Checking of the displayed error code (system alarm) |
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| Take the action for the error code (system | |
Can be checked. | Error code (system alarm): |
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| alarm) or error message checked. | ||||
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| If the status does not change after the action | ||
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| Example: 460 Communication unit error | is taken, proceed to | ||||||||
Cannot be checked. |
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(c) POWER LED |
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Lit in green | The power is supplied normally. |
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| Screen saving is being performed. |
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| The read device of the system information may | Check the setting of the read device. | ||||||||
Lit in orange | have been turned ON when the device was set, | When no problem is found in the setting, | ||||||||
| and the screen was switched to the forced screen | proceed to | ||||||||
| saving status. |
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| Replace the backlight. | |
Blinks in green/orange | The backlight has run out. |
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| If the GOT is not restored, proceed to (1)- | ||||
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| (d). | |
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| The power is not supplied. |
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| Check if the power is supplied. If the GOT is | ||||
Not lit | When the power is supplied, the GOT hardware | not restored, proceed to (5) Troubled | ||||||||
| may be faulty. |
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| product investigation. | ||||
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(d) Screen display |
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| Perform the following in order. | |
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| 1) Reinstalling BootOS | |
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| 2) Reinstalling standard monitor OS | |
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| If the GOT is not restored by 1) and 2), | |
The screen is completely | The liquid crystal display or BootOS may be faulty. | perform the following. | ||||||||
black. |
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| 3) Reinstalling CoreOS and then standard | |
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| monitor OS | |
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| If the GOT is not restored by the above | |
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| operations, proceed to (5) Troubled product | |
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| investigation. | |
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The screen is completely | The GOT hardware may be faulty. |
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| Proceed to (5) Troubled product | ||||
white. |
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A line is displayed on the | The GOT hardware may be faulty. |
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screen. | Example: A vertical line is displayed. |
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| Proceed to (5) Troubled product | |
Other faulty displays |
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The screen freezes. | The screen display is not updated and any | Proceed to | ||||||||
operation is not allowed. |
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18 - 2 | 18. TROUBLESHOOTING |
| 18.1 GOT Restoration Sheet |