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Less than 500 hours on the lamp, rated for 2-3k hours. Works perfectly otherwise. Last time it was on, I had my DVD player as the source, and the CD I was listening to had ended. As usual, it powered itself off due to inactivity; I set the 10 minute timeout months ago to conserve hours.
Anyway, the ****** won't light up. Tried pulling all the cables, power cycling, letting it cool off (unplugged) and then trying it again, pulled and reseated lamp harness... nothing. ****** still won't work. The best part is the LED error combination... 5 power (green) blinks followed 4 lamp (orange) blinks. Optoma decided this series of blinks wasn't worth listing in the manual... lucky me...
Should it matter, connection is as follows... DVD player > HDMI > receiver > HDMI > HDMI-to-DVI-D adapter > projector. Tried other connections (VGA from laptop in both two-monitor and external monitor modes). I sincerely don't think it's a connection issue; the lamp will still light up and show "no source" if something's amiss with the connection.
Called the local home theater and audio installation experts, they're not sure either. Their recommendation was to send it to Optoma for service. I'd like to save that as a last resort, so... any ideas? Perhaps there's some sort of factory reset, an updated blink code list, or something that's not occurring to me...
Thanks for your time, any assistance would be appreciated...
Thanks for posting, here are some additional details.
The Optoma EP772 projector () will shoot at up to 1080i, and the DVD player is a Samsung DVD-1080P9 http://www.samsung.com/au/consumer/detai... that upconverts to 1080p. Finally, the receiver is a Yamaha RX-V663 http://www.yamaha.com/yec/products/produ... that also does 1080p. Upconversion to 1080i is enabled on the DVD player, so the receiver should simply be passing through the 1080i signal, which it does for a PS3 (1080i) and a digital cable box (1080i) as well.
The receiver upconverting only kicks in for a Wii (480p via component cables) and for an old VCR (let's not even go there). Although tricky since it's ceiling-mounted, I'll give the player-to-projector idea a go tonight.
One question, please: are there any particular sounds that indicate a lamp, ballast, or color wheel issue? I get a slight, faint 5-second buzz when the lamp attempts to light. The sound was always present, but wasn't nearly as long before (1-2 seconds), and the lamp would light up immediately thereafter. At this point the cycle occurs 5 times (unless I'm mistaken), then rolls over and offers the green/orange LED error code; at no point does the lamp light up.
Thanks!Thanks for posting, here are some additional details.
The Optoma EP772 projector () will shoot at up to 1080i, and the DVD player is a Samsung DVD-1080P9 (http://www.samsung.com/au/consumer/detail/detail.do?group=mp3audiovideo&type=dvdrecorderplayer&subtype=dvdplayer&model_cd=DVD-1080P9/XSA) that upconverts to 1080p. Finally, the receiver is a Yamaha RX-V663 (http://www.yamaha.com/yec/products/productdetail.html?CNTID=567571) that also does 1080p. Upconversion to 1080i is enabled on the DVD player, so the receiver should simply be passing through the 1080i signal, which it does for a PS3 (1080i) and a digital cable box (1080i) as well.
The receiver upconverting only kicks in for a Wii (480p via component cables) and for an old VCR (let's not even go there). Although tricky since it's ceiling-mounted, I'll give the player-to-projector idea a go tonight.
One question, please: are there any particular sounds that indicate a lamp, ballast, or color wheel issue? I get a slight, faint 5-second buzz when the lamp attempts to light. The sound was always present, but wasn't nearly as long before (1-2 seconds), and the lamp would light up immediately thereafter. At this point the cycle occurs 5 times (unless I'm mistaken), then rolls over and offers the green/orange LED error code; at no point does the lamp light up.
Thanks!
I've read elsewhere on the web that, upon starting, most projectors initially apply a high voltage to get the lamp lit. Once this occurs the voltage is then scaled back. Perhaps the faint buzz I'm hearing is related? Then again, perhaps it's a ballast or color wheel (bearings?) issue? I'm an IT professional but know little about projection hardware; any help is appreciated...I've read elsewhere on the web that, upon starting, most projectors initially apply a high voltage to get the lamp lit. Once this occurs the voltage is then scaled back. Perhaps the faint buzz I'm hearing is related? Then again, perhaps it's a ballast or color wheel (bearings?) issue? I'm an IT professional but know little about projection hardware; any help is appreciated...
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As a quick tip - please try to not use the projector more than 2-3 hours before taking a brake. This will increase your lamp life-time to 3-4.000 hours.As a quick tip - please try to not use the projector more than 2-3 hours before taking a brake. This will increase your lamp life-time to 3-4.000 hours.
You can't post conmments that contain an email address.
Hi there. I seem to having exactly the same problem as you, including the intermittent buzzing followed by the 4x power and 5x lamp light flash error code. Did you get anywhere with your problem? Cheers.
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Despite the relatively few hours on the lamp, the fact is it's over 5 years old. It is not uncommon for a lamp to age and be too weak to fire. Replace the lamp, you should be fine.
The problem is not over-heating. The Optoma HD72 has a known problem that Optoma won't advertise. The lamp driver is faulty. They simply have to replace the lamp driver. I purchased a spare lamp with my original purchase. I had the exact same experience as you at around 1200 hours on the lamp in ECO mode. I used the spare lamp. Same thing happened at about 1200 hours. I had a friend at Optoma. he confided to me the problem. I sent it in and they replaced the lamp driver at no charge. I got another 800 hours out of the first lamp and am now using my second lamp and have about 600 hours on it. The pic quality is so good with this projector (used Digital Video Essentials to calibrate) that I'll just order a bare lamp or two and use the existing lamp housings when I need a new bulb.
the reason that it turns on without hitting the power button is that it thinks it's still in cooldown mode. while it's on, check the lamp hours through the menu. if it's close to 2000 hours (or the inside of the lamp is blackened or bulging), replace it. after market lamps never seem to last that long. if the fans stay on when the lamp goes off, it could also be the colorwheel. listen for chirping. if it chirps, it's the colorwheel.
I had this exact same problem. I have changed bulbs gotten 1000 or so
hours from new bulb, changed the lamp driver and gotten about 600 more
hours from new lamp driver. New lamp cost me $350, lamp driver cost me
$120. Then I read on a page to try and flip it right side up, because
I had it ceiling mounted upside down. I flipped it right side up and
it works perfectly and has been working perfectly for 2 months now. I
know it sounds stupid, but it actually worked for me, and it costs you
nothing to try it. For some reason, gravity effects this unit.
Power supply for the lamp got me an extra 600 hours... I have changed bulbs gotten 1000 or so
hours from new bulb. New lamp cost me $350, lamp driver cost me
$120. Then I read on a page to try and flip it right side up, because
I had it ceiling mounted upside down. I flipped it right side up and
it works perfectly and has been working perfectly for 2 months now. I
know it sounds stupid, but it actually worked for me, and it costs you
nothing to try it. For some reason, gravity effects this unit.
Thanks for posting, here are some additional details.
The Optoma EP772 projector () will shoot at up to 1080i, and the DVD player is a Samsung DVD-1080P9 http://www.samsung.com/au/consumer/detai... that upconverts to 1080p. Finally, the receiver is a Yamaha RX-V663 http://www.yamaha.com/yec/products/produ... that also does 1080p. Upconversion to 1080i is enabled on the DVD player, so the receiver should simply be passing through the 1080i signal, which it does for a PS3 (1080i) and a digital cable box (1080i) as well.
The receiver upconverting only kicks in for a Wii (480p via component cables) and for an old VCR (let's not even go there). Although tricky since it's ceiling-mounted, I'll give the player-to-projector idea a go tonight.
One question, please: are there any particular sounds that indicate a lamp, ballast, or color wheel issue? I get a slight, faint 5-second buzz when the lamp attempts to light. The sound was always present, but wasn't nearly as long before (1-2 seconds), and the lamp would light up immediately thereafter. At this point the cycle occurs 5 times (unless I'm mistaken), then rolls over and offers the green/orange LED error code; at no point does the lamp light up.
Thanks!
Oops... Optoma EP772 projector http://www.optomausa.com/Product_detail.... will shoot at...
I've read elsewhere on the web that, upon starting, most projectors initially apply a high voltage to get the lamp lit. Once this occurs the voltage is then scaled back. Perhaps the faint buzz I'm hearing is related? Then again, perhaps it's a ballast or color wheel (bearings?) issue? I'm an IT professional but know little about projection hardware; any help is appreciated...
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