What does a lamp bulb look like when it is no longer good or working? does it look burnt out? Mine looks like nothing it broken or burnt, but my projector isn't showing a picture on the screen. the fan works and the blinking light underneath works. so I know power supply works
Look at the lamp head on. an obviously bad lamp will have cracks in the mirror, the stem can have frosty,veiny looking blisters or bubbles, the mirror can have lots of bubbles. And sometimes there are just no obvious signs.
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Look at the lamp head on. an obviously bad lamp will have cracks in the mirror, the stem can have frosty,veiny looking blisters or bubbles, the mirror can have lots of bubbles. And sometimes there are just no obvious signs.