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Troubleshooting
6-3 Troubleshooting Procedures by Error Modes
6-3-1 Basic Troubleshooting: Diagnosis of LED on the Front Panel
� : Light is On � : Light is Blinking � : Light is Off Power � � Description This happens when the Master Switch is not pressed or the power cord is disconnected. This happens when the power cord is connected and the power switch is pressed. If you cannot set the power switch on by pressing it, check the power switch Ass'y. If you press the power switch of the transmitter or the channel key on the remote control when in St-BY status, the screen will be turned on. If the LED blinks and the screen is not displayed, check the connection between the Power and the System Board.
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6-3-2 Troubleshooting by the Checksum
â� Diagnosis of trouble by the checksum is neither reliable nor convenient. You can only use the checksume of the current direct-view TV to determine whether the software is corrupted or not. The Checksum value is determined according to the version of the software loaded on the set. Therefore, you can determine whether the software has been properly downloaded, if you know the correct checksum for that version of the software. You can check the checksum according in the following order. Factory Mode â�� Checksum â�� Right Button â�� Calculate Checksum â�� Output Checksum (e.g. 0xab2b) â� Checksum Examples T_COREOAKR1_1010 : checksum = 0xab2b T_COREOAKR1_1014 : checksum = 0x4faa
