Lenco LED-2411 - Manual (Page 4)

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Warning
This symbol is intended to alert the user to avoid the risk
of electric shock, do not disassemble this equipment by anyone
except a qualified service personnel.
This symbol is intended to alert the user to the presence
of important operation and maintenance instructions in
the literature accompanying the equipment.
CAUTION: TO AVOID THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER (OR BACK).
NO USER- SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN