Question about Optoma HD70 DLP Projector

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My optoma HD70 turns on and then shuts off. Can someone help. One tech did not know and another said "REPAIR POWER SYSTEM, REPLACE LIGHT BALLAST CLEAN/CHECK/ADJUST TO GWO". Can anybody help since I have limited resource.

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May I reccomend asking on JustAnswer.com

Posted on Aug 21, 2010

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2 Answers

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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.
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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


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Good luck!!

Feb 23, 2010 | 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

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Hi, on optoma hd70 3 LED lights blinking and projector won't power on


mine is doing this exact same thing. would love to know if you fixed this problem or if anyone else has had this problem and had it fixed.

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Optoma HD70 "Fan Failure" message, PLEASE HELP!


Simply just navigate the meny system until you find the high altitude option, the switch it on
The projector should work fine now.
If you experience problems with your Optoma projector after onle 3 mnths, assuming it was new when you bought it you still have 9 months of warranty you know, you shouldnt hesitate to bother the seller

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2 Answers

No Picture


its probably the ballast that is bad, call Optoma and you can buy a ballast for it, but you will probably want to have a pro do it, changing the ballast is a lot more involved than just changing the bulb, the ballast is what powers the bulb and it does go out on occasion.

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