Question about Sony VPH D50HTU Multimedia Projector

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Sony g70 all of a sudden my green gun comes on for only 10 seconds and shuts off. board problem? bad gun? help!!!! the gun is almost new

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Re: sony g70 - Sony VPH D50HTU Multimedia Projector Multimedia Projectors

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Posted on Oct 06, 2007

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I have an optima hd180 that will not power up. The projector was indicating a bad bulb, so I replaced that with a new one. Now it still will not power up and the fan does not come on either.

Problem w/ OEM bulb, it causes a lot of issues from my experience. Your ballast might have gone bad, hopefully it's just that. Check the voltage output of the ballast, make sure you're getting the proper amount.

Aug 14, 2015 | Multimedia Projectors

2 Answers

HELP! I changed the bulb already. My NEC VT 470 won't turn the bulb on. The green power light comes on, then the status light blinks green about 12 times, several rotations. Then the fan comes on, the...

Sounds like you lamp ballast has gone bad. I good way to verify this is, when you press power on the projector look inside the lens. If you see a small amount of light, then the ballast is good, and the lamp is bad. If there is no light then chances are the ballast is bad.

Apr 14, 2010 | NEC VT470 Multimedia Projector

2 Answers

Projector screen turns off after 10-20 seconds

Is the projector receiving a source signal? if not it will power itself down after whatever time you have it set to do so when no signal is present.
Just an idea?

Jan 03, 2010 | NEC NP-1000 Projector

1 Answer


There should be a menu option for orientation. The selection may be for ceiling vs standard. You have the unit set for ceiling mount.


Sep 12, 2009 | Sony VPH-G70Q Video Projector (VPH G70Q,...

1 Answer

Wondering if moisture can mess up a projector

Absolutely. The circuitry can "short out" on the controller boards.

A Pelican watertight case or similar is your best best.
They're not too expensive... but a new projector is more expensive.
Here's their site with different models available.

Best Wishes.

Nov 21, 2008 | Sony VPH-G70Q Video Projector (VPH G70Q,...

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SONY Projector

Two clicks is good, it means both parts of the supply are initializing, so they are PROBABLY OK. The lamp cover LED flashing could be a simple fix. Be sure the lamp cover and filter cover are securely seated. If necessary, take them off and reseat and latch them again. There is also a sensing switch on the cabinet that will cause this if the main cabinet cover is not seated properly. Be sure all cabinet screws are securely tightened. Beyond that, Sony says there is an outside chance it is the Q board, which is the main microprocessor board, but I've never seen one fail. It's more likely to have an intermittent switch on the lamp cover, the filter cover or the cabinet (the all have little microswitches that sense when the are closed) OR a bad or intermittent connection to one of the microswitch boards (all of the sensing switches are mounted on little circuit boards and that is the way Sony supplies them as a part) OR a connection problem to the Q board where the switch lines go into the microprocessor. If I had to make a guess at this point, the covers first (make sure they are closed and not warped in any way) the switches and then the wiring and connectors. Hope this helps. I would like to hear back from you to see how it goes.

Nov 01, 2008 | Sony VPL-VW100 (Ruby) Multimedia Projector

1 Answer

Erro code 35

what is the exact model of your Sony projector to give you help.

Aug 04, 2008 | Sony VPH-G70Q Video Projector (VPH G70Q,...

1 Answer

Sony VPL-DS100

I have solved this problem. Seems the rotating stand on the front bottom needed to be pushed and turned so that it inserts well inside. If it not well pushed the projector keeps shutting down itself every 10-15seconds. Took me about an hour to open the projector and doing all kinds of experiments to finally try that. :)

Jul 06, 2008 | Sony VPL-DS100 Multimedia Projector

2 Answers

Lamp will not come on

try pressing and holding the enter button on the projector for about 30 seconds - this resets it. It worked for me!!

Feb 10, 2008 | NEC VT460 Multimedia Projector

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