Question about BenQ MP623 DLP Projector

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Small dots on the screen

Technician says these dots are bubbles due to improper unplugging of power cord why in automatic cooling. How is this repaired?

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  • Jose Rommel Racimo
    Jose Rommel Racimo Jan 18, 2013

    It's probably you have a busted DMD chip, have your technician replace that, better yet buy a new projector because replacing that chip costs almost a brand new unit.



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If the dots are white flashes of dots , then the dmd is at fault and has to be replaced
ask ur technician to give u a used dmd which should cost you less than 100usd with labor

Posted on Jan 18, 2013

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I have little bubbles pop up on my projector, and all I DO to wipe them away is to take off the bottom 2 little screws with the little "hatch" which shows a couple of glass pieces that the lamp shines through. They're spaced just enough to fit a small flat head screwdriver inside a microfiber towel, and gently wipe the glass. I heard the bubble/spots happen because of dust or humidity, but... the only time i have these bubbles happen, is when I have a smokey environment. Which is crazy, so does that mean humidity? what could this be?

Posted on Nov 11, 2013


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Technician can help you resolve that issue over the phone in a minute or two.
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click here to Talk to a Technician (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

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I slam my computer screen shut.and now when Iturned it on it says preparing automatic repair and them wait the screen is blue. can see the mouse and move it screen sign on

automatic repair is initiated in case of windows corruption due to malware and viruses. it may happen due to incomplete updates and improper shut down.

you need to run the repair. if that does not work, then you will need a windows expert (technician) to work on your computer. call 1-877-805-1027 .. a reliable tech support company that will not scam you or charge too much.

Jul 15, 2015 | Computers & Internet

1 Answer

What does e3 mean on a Samsung microwave

Temperature of exhaust air too
Let it cool down?
The oven cavity gets too hot due to excessive
operation with no load or small load, or due to
some blocking materials around the Air Filter or
Air Exhaust at the back of the oven.
Remedy: • Open the oven door and check if 1) the oven
has been operating with no load or too small
load, 2) the air filter is placed in a wrong
position, or 3) any blocking materials exist
around the Air Exhaust. Cool down the oven (for
approx. 30 min) under the normal temperature.
The oven is back to normal when the error
code "E3" disappears and "ON" appears again
in the display window.
• Unplug the power cord, remove the blocking
materials around the ventilation openings, cool
down the oven (for approx. 30 min) sufficiently,
plug the power cord in again and check if the
error code appears again.
• If the symptom persists even when the oven is
cooled down sufficiently, contact the nearest
service centre

Jun 26, 2014 | Samsung MW1080STA Microwave Oven

1 Answer

Im sorry i should have added that its not circulating

No circulation is due to one a stuck thermostat or two gas bubbles in the cooling system from improper refilling or a leaking head gasket on the engine.

Nov 06, 2012 | Cars & Trucks

1 Answer

The fridge stopped working. what to do. its three years old

It could be due to following reasons 1 There is no power supply. Check the power cord and the plugs. Ensure that there is bend/breakage in the power cord. Ensure that the plugs are connected properly with the cord. If the lamp inside the fridge is lighting that means the power supply is OK. 2 The compressor has stopped functioning or burnt due to overload. 3 The gas has leaked out. You must have noticed less cooling over the months. 4 Check the thermostat switch.
For 2 & 3 you will have to call a technician. I hope you have been carrying out the servicing once a year.

Nov 03, 2010 | Whirlpool Refrigerators

1 Answer

I have dots all over my screen. How can I remove the dots?

Try unplugging the TV and leaving it unplugged for 30 minutes..

Then try plugging it back in.. If the dots dont dissapear.

Try shutting it off.. and removing all input cords.. Are the dots still there with no input going into it..?

If not, then the issue is with one of your cords or input devices ( cable box, dvd player , etc)

If the dots are there without anything plugged in. Its an issue with the Tv itself, and will need to be serviced

Aug 03, 2010 | Sanyo Televison & Video

1 Answer

Improper Shutdown Message

1. Disconnect the power cord from back of printer ( while printer is powered on )
2. wait for 10 seconds
3. hold and press the Power button and connect the Power Cord.
4. Release the Power button after 3 seconds
5. Follow the Instructions on the printer screen.

Later try to shutdown it, it should not give the message again

Jun 16, 2010 | HP Photosmart C6180 All-In-One InkJet...

1 Answer


most likely the polarizers for the lcds have been burnt due to improper shutdown of the unit repeated times. Always use the remote or the power button on top to switch a projector off. never unplug or use the on/off switch on the back. this cuts ALL power to the unit, so if you have been using it for 5 hours and switch it off--guess what ? no fans to cool off the lcds or the lamp.

May 21, 2010 | Panasonic PT AE200 Multimedia Projector

1 Answer

Model c6180 printer gives improper shutdown error

The printer is not getting enough power. When you get this error message it means the printer is being turned off by unplugging the power cord. In this case it maybe that the printer is not getting enough power due to being in a surge protector or perhaps the power module is no longer holding power correctly.
First step is to disconnect printer from any power strip, surge protector, or extension cords and plug in so directly to the wall. If printer still will not stop looping cycle you may need to contact hp for a new power module.

Sep 25, 2009 | HP Photosmart C6180 All-In-One InkJet...

1 Answer

Printer cycles on/off and displays "improper shut down"

Got the same problem following a message "Printer ink failure" code 0xc19a0035. Instructions say to shut down using button on/off. But printer refused to shutdown. After 30 minutes, I disconnected power cable. Removed cartridges. Reloaded cartridges. Reconnected power cable and got "Improper shutdown" message with continuous cycle. Solution: 1. While the printer is still turned on, unplug all cables and cords at the back of the printer.
2. Unplug the power cord also from the wall outlet...
3. Wait for two minutes.
4. Reconnect power cord to the wall outlet first.
5. Press and hold the pound (#) and six (6) buttons.
6. While holding down the two buttons, reconnect the power cord to the back of the printer and after two seconds, release pound and six buttons.
7. Turn on the printer if it turns off... and it's fixed.

Aug 25, 2009 | HP Photosmart C6100 All-In-One Printer

2 Answers


Not a big problem,try resetting the printer using the # and the number 6 buttons,holding them down and then inserting the power cord at the back of the printer.

In case it doesnt you can always contact a free online technical
support with an online live techbuddies technician at

Apr 15, 2009 | HP Photosmart C6180 All-In-One InkJet...

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