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7 Self diagnosis and special mode setting
This unit is equipped with the self diagnosis display function, which alarms faulty operation with error code. Use this function during
servicing.
servicing.
7.1.
Activating Service Mode
This mode can be used during servicing.
1. Plug the AC adapter to the power source. Press and hold down the [VOL +] button and the [VOL -] button, and then press the
[POWER
] button at the same time.
2. The message, [SERVICE] appears on the display for three seconds, and then it will display the following. Refer to Fig. 1.
Fig. 1
3. To confirm the
μP software version: When [VOL +] button is pressed, [M--- ****] is displayed [---] is current main micon version;
[****] is current checksum. If no ROM correction, [NO] is displayed.
When [VOL -] is pressed, display [H***], [***] is current version of HDMI micon.
When [VOL -] is pressed, display [H***], [***] is current version of HDMI micon.
7.2.
Activating Doctor Mode
This mode can be used during servicing.
1. Plug the AC adapter to the power source. Press and hold down the [INPUT SELECTOR] button and the [VOL +] button, and
then press the [POWER
] button at the same time.
2. The message, “_DOCTOR_” appears on the display for three seconds, and then it will display the following. Refer to Fig. 2.
Fig. 2
7.3.
Error Codes Display List
An error code automatically appears on the display (LCD) when faulty operation is detected. Refer to Fig. 3.
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