Panasonic PT-TW230U Service Manual

Also see for PT-TW231RE: Operating instructions Operating instructions

Contents

Panasonic PT-TW230U Service Manual Manual pdf 8 page image

-8-Circuit ProtectionsThe projector will be automatically turned off when the internal temperature of the projector is abnormally high, or thecooling fans stop spinning, or the power supplies in the projector are failed.Warning temperature and power failure protectionThe projector is shut down and the WARNING indicator lights red.When the projector detects an abnormal condition, it is automatically shut down to protect the inside of the projectorand the WARNING indicator lights red. In this case, unplug the AC power cord and reconnect it, and then turn theprojector on once again to verify operation.WARNINGDO NOT LEAVE THE PROJECTOR WITH THE AC POWER CORD CONNECTED UNDER ANABNORMAL CONDITION. IT MAY RESULT IN FIRE OR ELECTRIC SHOCK.4 Note:- If the WARNING indicator lights red, it may defect the cooling fans or power supply circuits. Check fans operationand power supply lines referring to the chapter “Power supply & protection circuit” and "Fan control circuit" in theChassis Block Diagram section.When the temperature inside the projector reaches a certain level, the projector will be automatically shut down toprotect the inside of the projector and the WARNING and ON(G)/STANDBY(R) indicators start blinking. When the pro-jector has cooled down enough (to its normal operating temperature), the ON(G)/STANDBY(R) indicator stops blinkingand lights red, The projector can be turned on again by pressing the button.4 Note:The WARNING indicator continues to blink even after the temperature inside the projector returns to normal. Whenthe projector is turned on again, the WARNING indicator stops blinking.Check items- Remove dust around the air filter unit.- Ventilation slots of the projector are blocked. In such an event, reposition the projector so that ventilation slots arenot obstructed.- Check if projector is used at higher temperature place (Normal operating temperature is 0 ˚C to 35 ˚C or 32 ˚F to95 ˚F)The projector is shut down and the WARNING indicator is blinking red.LED indicatorWARNING emit a redlight