Question about Optoma HD70 DLP Projector

4 Answers

Replaced lamp on optoma hd70 unit will not power on

The unit started flickering colors and then went out. the lamp life was over. We replaced the lamp but cannot get the unit to power up.

Posted by on

  • 4 more comments 
  • Anonymous Feb 03, 2009

    Replaced Optoma hd70 Bulb because old lamp expired. Now i have another problem, it seems no power is getting to the projector, there are no lights coming on or anything. HELP!!!!!!!

  • ngillespie Feb 07, 2009

    I have the exact same problem! I replaced the lamp on my Optoma HD70 and now the power will not come back on.

  • joelmac Feb 08, 2009

    same problem here... changed bulb now no power at all!

  • kasian Feb 13, 2009

    Should the switch be pushed forward by the tab on the cover or should it be pushed away from the lamp?

  • kasian Feb 16, 2009

    I actually removed the tabs on the side that you insert before closing the cover. This allows you to slide the cover on from the side which pushes the metal tab over. Now it works great!

  • Anonymous Apr 26, 2009

    omg...thank you so much!! we thought it was broken for good!! thanks for your help!!

×

4 Answers

  • Level 1:

    An expert who has achieved level 1.

    Governor:

    An expert whose answer got voted for 20 times.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 6 Answers

I had the same issue.
Take the bulb cover off and hold it just above the unit. notice how that part that sticks down has a little curve to it. The curve is designed to gently push that little metal wire as the cover is lowered.
If you take a small toothpick and exercise the little wire in... NOT DOWN... you will hear a small click. That is the switch making contact. When it makes contact and clicks... and you plug it in the green light will be on again... and the unit will work fine.
You do not have to take the tabs off.
Just exercise the switch... put the cover on slowly... be very quiet and you can hear the click sound.
Plug it in and you are good.
And if the color starts to flicker on and off... it needs a VERY good cleaning... not a new bulb. Read my other posting to the guy with the fan picture.
Doug

Posted on May 13, 2009

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

I figured it out. The above posts are right, the problem is the little metal switch that the tab on the cover is supposed to move. The problem is that the tab is not designed all that well so it ends up pushing the metal switch down, instead of the left. You will notice that the cover has a slight bump in the middle when closed if the switch is not engaged properly. The cover should be totally flat and close all the way without having to told it down. And it should go easily without having to push it down.

To get it in properly, I don't recommend breaking off the tabs like someone above suggested. Instead, put the cover on and when lowering it, you have to kind of wiggle it back and forth from left to right while slowly lowering it. You will feel the switch move out of the way and the cover should close nice and easy and snug; compared to when the switch is not engaged properly as I described above.

Hope this helps, I have light now!

Posted on Mar 05, 2009

  • techQuility Mar 05, 2009

    P.S. My friend has the same projector and his didn't power on even after properly closing the lid. Maybe because the switch is now slightly bent from being pushed down incorrectly by the cover.



    If you move the switch with a toothpick, you can clearly hear a distinctive click of the switch. When lowering the lid and wiggling like I dexscribed in my first post, you should hear that same click of the switch. On my friends HD70, that click was not happening when closing the lid. We had to use some paper and basically jam the swich open. Make sure to leave room for the tab on the cover so that it doesn't push your paper out of the way.

  • amendineduc
    amendineduc Dec 09, 2012

    thank you from Paris!!! it's a perfect solution!!

×

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

I just replaced my Optoma HD70 bulb and had the same problem. No power at all. When I removed the outer door covering the bulb (thinking I had seated it incorrectly) I noticed a small tab sticking out. This tab on the cover has to strike the switch next to the bulb. It looks like a little wire where you plug the bulb in (it is opposite of the front of the projector). If the tab doesn't hit this switch the projector thinks you are trying to run the projector with the cover off. 

Posted on Feb 13, 2009

  • MikeDeLorey Feb 13, 2009

    If you look at the tab on the cover you will see it is slanted. It looks like it is closing the switch by moving it towards the back of the projector.


    Since you can't 'see' what is happening when you put the cover on it is sort of a hit or miss operation. 


    You may want to make sure the switch is not damaged. You should be able to move it with a small screwdriver with the cover off to verify the direction the switch will move. 

×

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I used a matchbook cover to keep switch moved over and all is fine

Posted on Feb 16, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Optoma HD70 bulb failure


I am betting that the ribbon cable to your color wheel has become loose. Here is a detailed slide show of a similar model so note where the cables are and check each one.
Optoma HD20 DLP Projector DMD repair turning green and flickering

Jun 25, 2013 | Optoma HD70 DLP Projector

1 Answer

Used my OPTOMA HD70 ABOUT 2years now -and had to replace the lamp i unplugged it and when turning it back on to work - it does not start , it`s dead the green led lamp does not flicker , does not work...


There is a switch on the side where you insert the lamp, it's black with a metal contact. If, when the lamp cover is replaced, it does not "activate" this switch for some reason (i.e. it is loose or perhaps bent) then the projector will not power at all.

Just remove the lamp and take a look at the switch for possible damage incurred from when you replaced the lamp.

Sep 29, 2010 | Optoma HD70 DLP Projector

1 Answer

HD70 DLP Projector: The projector is used and about a year old. It cur...


Did this start occurring after you replaced the lamp?

The reason I ask is I had the same issue after changing the lamp and it was caused because when I took out the old lamp I noticed dust in the lamp housing which I attempted to blow away.

This caused the problem because some dust got further into the projector, specifically around the color wheel. I sorted it out by taking the projector apart following the instructions here:

http://tantht.blogspot.com/2009/02/how-to-remove-dust-blobs-from-optoma.html

(note my HD70 was out of warranty, if yours is not, I would recommend contacting Optoma to get it fixed).

Follow the above instructions to step 14 and then locate the color wheel which is at the front of the projector behind a dark gray, plastic type square shaped cover.

You have to be very careful here, but remove the color wheel (there is one screw holding it in place) - note it

May 18, 2010 | Optoma HD70 DLP Projector

1 Answer

Optoma HD 70 turns on with lamp and temo soiled lights


Asher fadida and alll,

The issue:
solid red error light?
HD70 "die's" after few min with strage noise?
flickers different colors before complete self shutdown?

well try this....

Before replacing your bulb, fan or any other component try first cleaning your optoma realy good!! HD70 doesnt comes with any kind of filter so you can imagine the amound of dust can be.
The most importent thing is to blow away any dust from your color wheel + the sensor attached to it .

for farther troubleshoting clean your fan's.
there are 2 fan's insinde the HD70.

probably the most problems will be solved by cleening the color wheel!!
if the problem is not solved ,chack the lemp and the fans if they work properlly.

For fan replacing:
Fan Part number: GM1207PKVX-A


3c00ee2.jpg
Good luck!!

Feb 23, 2010 | Optoma HD70 DLP Projector

1 Answer

Optoma hd70 starts flashing colors


I removed the front cover and top panel, Using the Radio Shack dust removing spray, removed all dust from interior including circuit boards, color wheel ect, now it,s operating like a new projector.

Dec 21, 2009 | Optoma HD70 DLP Projector

2 Answers

Picture keeps flickering after 15 min


if you hear chirping, too, replace the colorwheel. also check the lamp timer. if it's close to 2000hours (or the inside of the lamp is bulging or blackened), replace the lamp. if the lamp is new and the colorwheel doesn't chirp, replace the ballast/power supply.

Nov 17, 2009 | Optoma HD70 DLP Projector

2 Answers

Optoma HD65: no power after replacing lamp


i was blowin air in the back vent and i heard popin sounds and now i have no power

Apr 24, 2009 | Optoma HD65 DLP Projector

Not finding what you are looking for?
Optoma HD70 DLP Projector Logo

3,039 people viewed this question

Ask a Question

Usually answered in minutes!

Top Optoma Office Equipment & Supplies Experts

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

The Knight
The Knight

Level 3 Expert

73150 Answers

Computer Links

Level 3 Expert

2385 Answers

Are you an Optoma Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...