Question about BenQ PB6100 Multimedia Projector

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BenQ PB6100 extremely dim screen/projection

My lamp has only 408 hours on it and the screen is very dim. Is this a problem anyone else has had? Cannot imagine that the bulb is already bad, with less than 500 hours. Thanks.

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Hi skeeterJ

This is most probably your lamp , I have had loads of PB6100 's that has even had less hours on the lamp than yours and needed replacement.

Keep in mind that the 2000-3000 hours they talk about on a lamp is just a rough factory estimate. The time you get on a lamp is determined by how you use the Projector - because at the end of the day the lamp is just like a globe in your home - it doesn't like being swithed on and off for short periods. This is a mistake most Projector owners make - by thinking they are saving the bulb's lifetime and switching it off for short periods.

You can take my word on this as I am a Authorised BenQ Service Technician.

I've had clients who got 10 000 hours on one bulb just because they left the unit running for longer periods.

Lamp Part No : 60.J8618.CG1

Easiest way to make 100% sure before investing in a new lamp is to take out the lamp by opening the lamp door at the bottom.
Check for any vein like looking marks in either white or black or a bubble on the shaft.

If you have any further troubles or questions , feel free to post another posting and I'll answer it for you ASAP.

Thanks for using Fixya and good luck !

Posted on Apr 25, 2008

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Hi Guys,

I recently struck this issue with one of our PB6100's. To resolve I did the following:
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Hi cvijr

This can only one of two things - the lamp or the Ballast ( lamp's powersupply )

Normally the PB6100/6200 lamp's has got markings on the lamp itself when this flickering occurs.

Take out the lamp by unscrewing the lamp door at the bottom. Then look for any vein like looking marks in either black or white. Or even a bubble at the bottom end of the lamp's shaft.

If you can spot anything out of order , then the lamp will need replacement.

If not , then you'll know for sure that it is the Ballast that is in need of either repair or replacement.

Part Numbers :

Ballast :5D.J8612.011

Lamp : 60.J8618.CG1

Hope this is of help and thanks for using Fixya !

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