Question about Hitachi Cine Master PJ-TX200 Multimedia Projector

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Light, then Dark

Hi there. I have a PJ-TX200, that now when I watch it goes light (slightly), then darker (slightly)...enough to notice. This happens every 20-30 seconds. It is slight, however others have noticed and it's getting annoying. I've only had my projector for about 1 year, and my lamp just hit 600 hours. Do I have a bulb problem, a light engine problem, or something else? Your advice would be greatly appreciated. I have a authorized service department near by, I'de just like to be able to tell him what I think is wrong. Thanks again. Jon please e-mail to

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Re: Light, then Dark

Ok! maybe you have defective capacitors! or lost contact at high voltage section!

Posted on Oct 05, 2007

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1 Answer

Replace inside bulb of projector lamp for Hitachi

check the site below

thats the manual

Jan 09, 2011 | Hitachi Cine Master PJ-TX200 Multimedia...

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4805sp runs 4 or 5 minutes then shuts down

could be the fan should be running to cool the lamp. there could be temperature sensor that is why it is shutting down to save your lamp.

check the fan if it has continuity. it could be broken and need to be replaced.

tnx 4 using fixya,


Oct 18, 2008 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

Dark haze left side of screen about 4 to 6 inches wide only in the wider screens not in the native

Its a Light Tunnel failure. Go to and search for 4805 Light Tunnel. There are instructions to open the PJ and repair the Tunnel. Also, I posted a DIY replacement option in lieu of fixing the very fragile tunnel.

Jan 02, 2011 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

The top of the screen is slanted while the sides of screen and bottom are even, causing the right hand side of screen to appear smaller than the left. Anyway to fix this?

Sounds like a "keystone" problem. Your projector needs to be oriented to the screen in an exact manner. Manufacturers provide "keystone" correct to adjust for mis-alignment. If proper orientation is impossible, use the keystone correction of the unit to adjust your edges.

Aug 14, 2010 | Hitachi Cine Master PJ-TX200 Multimedia...

1 Answer

Panasonic PT-AE4000 Shuts off

This is a serious issue and It seems as though you have got a defective peice. Either the PJ was damaged when in transit or it was a faulty piece. The PJ could have a defective lamp because if it is trying to trip off on loading , then the chances are that the Lamp is taking intoo much current and tripping off the circuit. Since your PJ is brand new, if it is under warranty , you must take the privilege of free replacement of the part, than to try any repairs. What could be done is to check again for power connections faulty voltage. If not since the trouble shooting was ably done there is not much to check than to take this decision. You must ask them to give you extended warranty and claim for damages if they seems unhelpful. Hope you decide with my advice. Good day

Jul 26, 2010 | Panasonic Ptae4000e Ptae4000u 1080p Hd...

1 Answer

High lamp temp

Dismount dustfilter, carefully vacuum clean filter and filter aperture, then replacing filter and finally reset filter time in menu.

Dec 24, 2009 | Hitachi Cine Master PJ-TX200 Multimedia...

1 Answer

4805sp runs 4 or 5 minutes then shuts down

Hi there

Yeah, thats the bad fault that one. The fault you have described is the main controller board giving up the ghost and stops supplying enough voltage to the fan tp allow it to run, and shutting down after 4 or 5 mins is the safety thermostat on the bulb cutting it out as to not cause any damage due to overheating. My projector had both these same faults, I ended up just buying a new light tunnel after many attempts of glueing mine back together unsuccesfully =(, and to fix the fan issue (without spending $800 on a new controller board), I permanently mounted the insides of an old nokia charger inside the projector, which supplies the fan with its own power source, worked like a charm =D. Yes I would be more then happy to send you the service manual, may I have your email adress to send it to?


Jun 21, 2008 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

PJ-TX200 hitachi projector

Hi George86969

Try checking if all the fans are working when you swich on the unit. Normally a static red temp. light is a faulty fan that will have to be replaced.

May 17, 2008 | Hitachi Cine Master PJ-TX200 Multimedia...

1 Answer

PJ-TX100 Projector won´t start up out of Stand-By

Hi Mario

If there is no response on the Projector it normally means that the Mainboard is faulty.

Check if your machine is still under warranty because this quite expensive to replace.

As far as the schematics are concerned - I'm unfortunately not able to help you out with that.

Apr 02, 2008 | Hitachi PJTX100 Multimedia Projector

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