Alignment & Troubleshooting
4.1.4 Tech Mode
In service (tech) mode, the technician can check the machine and perform various tests to isolate the cause
of a malfunction. While in Tech mode, the machine still performs all normal operations.
To enter the Tech Mode
To enter the Tech Mode, press "Menu → # →1 → 9 → 3 → 4 → Menu" in sequence, and the LCD briefly
displays 'Tech Mode', the machine has entered service tech mode.
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Service Manual
Samsung Electronics