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6.3 THE APPARATUS DOES NOT SWITCH ON, FLOW ANALYSIS AND TECHNICAL DESCRIPTION (refer to electrical diagram, file name ACCU 12 V) EQUIPMENT DOESN'T SWITCH ON WITHOUT MAINS WITH MAINS Check the T 2 A battery fuse GOOD BROKEN Verify current comsumption max 1,8 A d.c. Verify battery operation Verify fuse burnout cause GOOD BROKEN Remove fuse burnout cause Verify the 12 V power supply circuit Replace battery Replace fuse BROKEN Verify ON/OFF circuit BROKEN Replace mother board AFTER SALES SERVICE 21
