Check item (69). Check communication between CPU and de-
vice.
Send the following command from Termite.exe.
Send the command "i 001A 00D0 0002".
Is the return value "6082" ?
Check item(68).
Rewrite to the GUI ROM.
After writing, is the GUI version readable cor-
rectly?
Go to check item (3)
Checking device. (GUI)
Check the I2C communication line. (GUI)
Example
If it is normal, "6082" is returned.
i 001A 00D0 0002
6082
3-6 GUI (ADV8003) failure detection procedure
NO
NO
NO
If the communication results are OK
If the communication results are not OK
Go to check item (3)
Check item(70).
Replace the GUI Rom(IC404).
Is the GUI version readable correctly?
Go to check item (3)
Check item(71).
Replace the GUI(IC401).
Is the GUI version readable correctly?
Replace the PCB.
Go to check item (72)
YES
YES
YES
When the results of check item (69) are "the communication results are not OK"
Check item(72). Check the power supply voltage.
:
Does the GUI (IC401) power voltage indicate an
appropriate voltage (1.8V or 3.3V)?
The test points are as follows.
IC401
1.8V
3.3V
Check item(73). Check the power supply voltage.
:
Check the power supply components (Q1106/
IC111) on the substrate and peripheral pattern.
If there is no problem, remove the GUI (IC401)
from the substrate and measure the voltage at
the test point of check item (72).
Is the voltage correct (1.8 V or 3.3 V)?
Check the power supply voltage. (GUI)
Checking device. (GUI)
Go to next page.
NO
The GUI (IC401) is failure.
Replace with a new device.
Recheck from check item (1).
If it does not work, replace the PCB.
The power supply circuit is faulty.
Replace the PCB.
NOYES
YES
122
Caution in
servicing
Electrical Mechanical Repair Information Updating
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