20 Most Recent Optoma EP7155 Projector Questions & Answers

1 check VGA cable for damage (try other cable)
2 check connections
3 make sure you have resolution on PC is faling in projectors resolution range
4 if it is laptop, make sure you have it in external monitor mode (usually Fn + F8 keys)

Dear Sir,sorry, lately answer your question, and every days was very busy, and i operate a trading company on construction materials, such as plywood, MDF, furniture, etc. so have much work to do, and just login fixya meet all warm heart friends by off hours.meantime, i'm amateur of electronic products, and glad to answer some question what i know, kindly hope i can help someone.under the support of many friends who comes from Fixya, i open a ebay store, specially supply projector, and DLP HD TV sapre parts, such as color wheel, DMD, lens, lamp, boast, mainboard, remote control, light tunnel, etc.sorry, saying so much words, back to your question.firstly, inspect the connect cable, then note some outside signal disturb, if you exclude these two reason. perhaps you should find a repairman help you to remove dusty. if all these action can't solve with your trouble, you have to think about the reason of DMD.hope above words be useful for you,for any further communication, please freely contact me,best regardsJack,email: [email protected]when you need projector color wheel, lamp, mainboard, DMD, lens, etc sapre parts, please don't hesitate to contact me,

it could be the fan there are normally more than one, replacement is not hard just make sure you remember how it goes back together, a hint would be to get a digi cam for every part you take out, it may sound silly but very usefull esp when ordering parts, or make sure the lamps was replaced with the right one, if you still have the old one check the code numbers match... good luck

Hi

Possible filter problem since its overheating. clean up filters and make sure that you use projector in an open area so air can cool it off while running.

Hope this helps

sorry too late, but the fans need to be replaced.

Question edited for full 'make model (what it is)', optima to Optoma Question moved from Televisions category. You can only change the password if you know the old one. They are password locked to prevent theft. Any on the secondhand market are stolen from workplaces.

manual-optoma-ds316l-en-51.pdf - Beamer-Parts.eu

https://www.beamer-parts.eu > files > desc > manu... PDF Enter new password again and press ". " to confirm. If you have forgotten your password, please contact your local office for support. ? Pass ...

To perform a hard reset on an Optoma UHD55 projector, you will need to locate the reset button on the projector. This button is typically located on the back of the projector, near the power cord. Press and hold the reset button for at least 10 seconds, or until you see the projector's LED light begin to blink. Release the button and the projector will reset to its default settings.

Hi, please check the serial number of the fans that are supposed to be the same. They might be different in some way because otherwise, the error should not have occurred. If the products have the same serial number or similar type of id, then I would take the projector to geeksquad/bestbuy to double check that the new fan was installed properly. Thank you.

Reset instructions according to this https://factory-reset.com/wiki/Optoma_Service_Menu Optoma Service Menu Instructions Most of our Optoma Service Menu methods require the use of an original remote, typically you can not do it with just the buttons on the front of the set. If you no longer have your remote or have damaged it, we recommend that you purchase a Optoma Remote before trying to enter the service menu. Method 1

1. Press simultaneously {UP} & {ENTER} buttons twice.
2. Press simultaneously {LEFT} & {ENTER} buttons twice.
3. A Service Menu will be displayed
   1. Then to access the Full Service Menu: Press the {UP}, {LEFT} & {DOWN} buttons once.
4. To exit, turn the Projector Off.

Method 2

1. Press the {UP} {UP} {LEFT} {LEFT} buttons.

Method 3

1. Press the {POWER} {LEFT} {LEFT} {MENU} buttons.

Method 4

1. Press simultaneously the {RE-SYNC} {ENTER} {SOURCE} buttons on the Projector.

Method 5

1. Press the {POWER} button.
2. It will show: "Power Off" or "Picture Mute".
3. Then press the {LEFT} button 8 times slowly.

Method 6

1. Press {MENU} {6} {1} {9} {MENU} buttons.
2. To exit the Service Menu: Press {MENU} {6} {1} {9}

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