Question about BenQ SP831 Projector

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My church has a BENQ sp831 digital projector. When you power on, it acts like it is going to start up ( bulb comes on and projects BENQ image ) but then suddenly fans kick on and it shuts down. Will not stay on more than 60 to 90 seconds. Bulb doesn't have more than 150 hours on it. It sounds like more than one fan kicks on or that it ramps up rapidly. Please help. Thanks

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6ya6ya
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Posted on Jan 02, 2017

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Gigatech
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SOURCE: Christie DS+60 projector turns off spontaneously

Here is a list of error codes for your unit:
12 Software bug. Contact dealer/factory.
13 Flash memory corrupted. Download new software.
14 Engineering only programming is complete. Call Christie, replace TIPM.
15 Attempting to download code without being in boot mode
16 Invalid interrupt. Power off/on. If it persists, contact dealer/factory.
17 Forced boot mode. Keys held down too long.
18 Attempting to program boot mode without jumper
LAMP FAILURES
21 Lamp compartment too hot
25 Lamp 1 not installed
26 Lamp 1 Interlock: door open, lamp not installed
27 Unable to turn lamp 1 ON
28 Lamp 1 shut off unexpectedly
29 Lamp 1 driver overheated
2A Lamp 1 driver operation error (e.g. too hot can’t start)
2C Lamp 1 driver UART communications failure
30 Lamp 2 not installed
31 Lamp 2 door open
32 Unable to turn lamp 2 ON (unknown reason)
33 Lamp 2 shut off unexpectedly
34 Lamp 2 driver overheated
35 Lamp 2 driver reports operation error (e.g. too hot can’t start)
36 Lamp 2 driver UART communications failure
37 Lamp Watchdog Tripped – Unless lamps turn on again after 3 minutes, assume software hung.

Posted on Feb 26, 2009

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SOURCE: BenQ PB8220 DLP projector - lamp button continues to flash after bulb replacement

Hello!

After 2 years I finnaly solved the problem. There was a flaw in the lamp´s temperature circuit. A technician disassambled my BENQ PB8253 unit and fixed the problem. Charged me US$ 75.00. I´m in Brazil.

Hope this can help.

Posted on Sep 14, 2009

heathgr
  • 442 Answers

SOURCE: my projector won't project anything.

Disconnect all inputs to the BENQ and power on. Do the lights come on as per normal operation. Does the lamp come on when the power button is pressed. Does anything show when the menu is selected.

Posted on Aug 20, 2011

SOURCE: BENQ w10000 makes noise and

hi sir, whether you cecked the color wheel? because once the color wheel motor with issue, make noize too.

Posted on Oct 04, 2012

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1 Answer

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The screen image has a series of vertical lines that appear then disappear at irregular times


Normally this is loose connection of main board with the DMD assembly.
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Samir

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Bluish image appearing on screens


It sounds like the projection lamp is beginning to show its age. How many hours of use does the unit have on the bulb? The bulb are typically rated for about 800-1600 hours of use before they go bad. The bluish image on the screen image is a typical tell-tale sign that the bulb is going to need replacing.

Most of your better projection units will have an internal time counter of the bulb life from the time the unit is first used or when a bulb is replaced. Check to see if your unit has this feature, if so it will show you on the screen display what is the total number of hours on the bulb and the estimated remaining hours of life.

Be aware that the replacement bulbs are NOT cheap and usually will cost you several hundred dollars, I have seen bulbs for professional projection units used for large convention/presentations have bulbs costing as much as $500.00 USD.

One other last thing to check is to clean the lens of the unit both inside and outside. To clean the inside, you will need to remove the bulb (be sure to wear a rubber glove as the oils from your skin will cause the lamp to blow, (causes a hot spot)). Then using a cleaning wipe, just as one used for cleaning microscopes or glasses, wipe the lenses. The discoloration might also being caused by dirt and oils on the lenses.

I hope this shed some light on your church's projection problem.

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check out projectorsuperstore.com for a replacement

by the way, your $10,000 projector only has 2600 lumens, a new/refurbished unit will have 4000 lumens for less than 25% of the cost of your unit

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sir
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Hello,
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