JRC JLR-7500 - Startup (Error-3); Turning the Unit off

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4.2.1.4 Startup (Error-3)
If the following screen is displayed after the unit is turned on, press the key and
key simultaneously to turn off the power.
Contact JRC or its affiliate.
4.2.2 Turning the Unit Off
If the key and key are pressed and held down simultaneously, the power will be
turned off and the screen display will turn off.
Attention