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Infocus in74 projector model p740 had blown fuse on lamp driver board will i need new lamp and driver board?

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SOURCE: Infocus LP130 Projector not working, lamp good but

Propritary brand. Must send to manufacture for service.

A1 Elmbrook Electronics Inc. EEI.Vstore.ca Elmbrooke@gmail.com

Posted on Mar 30, 2010

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Message says airfow blocked, turns on for about a minute then shuts off


1. Remove the air intake filters on your DLP projector. As explained by InFocus, a manufacturer of LCD and DLP projectors, each DLP model will house the air filters in a different location. However, for most DLP projector products, the filters are accessible by unclipping a simple plastic latch.

2. Wipe the air filters with a small cloth dipped in rubbing alcohol.

3. Blow compressed air into the unit's vents. This will force some internal dust out of the DLP projector, but you may still need to open up the unit for additional dust removal.

4. Unsnap the main cover from your DLP projector. Because DLP projectors need periodic lamp replacement, the main cover is rarely secured with screws or bolts. However, if the DLP projector's cover does not snap off, then you'll want to inspect the unit for possible screws or an alternate release latch.

5. Reach in and remove visible dust globs with a paper towel. Be careful to avoid touching the lens, as fingerprint smudges can diminish DLP projector image quality. If you accidentally smudge the lens while picking out dust blobs, wipe the lens with a dry, lint-free microfiber cloth.

6. Spray compressed air into your DLP projector to remove any lingering dust particles.

7. Close up the projector and reattach the filters.


Sep 26, 2011 | Mitsubishi WD-65C9 65" DLP HDTV

1 Answer

My KDS-50A2020 TV has an error code indicating a lamp driver fault (5 red blinks). I replaced both the lamp and the ballast and it still doesn't work. I need further assistance troubleshooting the...


Hello.
Ballast in Sony is one of the most reliable parts, almost never goes bad.
I assume you have TV unplugged from the wall outlet to reset error memory (not to mention that you have to do it anyway during ballast replacement).
I hope you are using good quality lamp, because cheap substitute from E-Bay can cause same problem. Lamp and ballast works as duo and on-board diagnostic system is unable to separate them unless lamp is completely blown (in that case you will have steady "Lamp" LED blinking).
You need to set TV up with back cover removed but lamp door attached (there is switch that prevent TV from working if lamp door is removed). You need to locate large 2-wire connector on ballast and make sure that it's getting about 330V DC from power supply board when you turning your TV on. If it's not there - you have power supply board problem. There should be fuse on it (not on the ballast board but power supply board - just trace those two thick wires where they coming from). That fuse could be blown by previous bad ballast shortage.
Small connector on ballast have 5 pins. Some of them ground, one of them steady 5V and another trigger (turn on signal) 5V. Make sure all voltages are there. If there is no trigger 5V - you have problem with main board.
In my experience 90% cases - it is very bad quality new lamp or something is just not connected (forgot to put plug all the way or something).
Good luck!
Russ.

Aug 17, 2010 | Sony KDS-50A2020 Television

2 Answers

I have a infocus X2 projector that powers on for about 15 seconds then turns off ( the light goes from green to red). What is the cause of that.


Your projector most likely has a bad ballast board(lamp power supply) that is the most common cause of this problem. The reason why this happens is because the lamp is drawing more power than usual and hence the protection circuitry will shut down the projector as precautionary measure to avoid damage to the components.

Hope this helps,
Sai.

Jan 22, 2010 | Projection Televisions

1 Answer

Good morning, I have an interesting issue with my Epson 6100 Powerlite home theater system. I wish to remove the original lamp in the projector and then replace it with a Photographers Flash/modeling...


All projectors have a safety switch for the lamp door. Locate it and just by-pass it. It sounds like you have the knowledge so let's go for it..

Aug 19, 2009 | Projection Televisions

1 Answer

I have an Infocus SP5000. The unit turns on,but


I use an infocus for my church. I don't believe there is a counter shut off, or a reset that would revent the light from operating. I sugest you go ahead and replace the lamp.

Aug 17, 2009 | InFocus Projection Televisions

1 Answer

My infocus IN1 projector won't turn on anymore.


Hi,
It may be the lamp is out. Normally a projector will try & fire the lamp 3-5 times then shut down with a different color light like amber or red. If the lamp doesn't light then it could be the lamp or perhaps the lamp ballast that starts the lamp has failed. A stuck fan also causes similar symptoms. There's 2-4 fans in the projector if one is stuck or bad it will turn off within 5 seconds or so after the lamp lights.
Does your lamp light at all? Are the lights a different color after it shuts down? Answers to these questions help figure out what's wrong though it's impossible to say for sure without looking at it. I service almost all Infocus projectors if you would like a quote please reply with your email address or write me at prmhelp@earthlink.net
Good Luck,
Jim

Jul 24, 2009 | InFocus Projection Televisions

2 Answers

Model ws65613 green power lite keeps blinking tv does not turn on


oh yea don't try to look for a lamp in your tv set that has three crt's!

if you can solder and unsolder , then replace the four(4) 1000uf capacitors on the dm board , and make sure the new caps are 25v or 35v , also check fuses for the two STK 394-250 convergence IC's (ic8c01 , ic8c02 )( on the big heat sink ) , if they are blown then replace the convergence IC's also
here is the service manual that will help in dissasembly and locations of dm board and convergence IC's
http://www.techlore.com/download/24849/Mitsubishi-WS-xxx13-Service-Manual/

Mar 02, 2009 | Mitsubishi VS-55601 55" Rear Projection...

1 Answer

EPSON POWERLITE BULB REPLACEMENT PROBLEMS


ok
look at your users manual.
all epson models need to have lamp life reset befor the lamp will light.

I have had this same problem befor.

Daniel.

Jan 11, 2009 | Projection Televisions

1 Answer

Sony Trinitron WEGA won't turn on


6 blink error is either a power supply (g2 board) or a blown thermal fuse. if it came back on, its not the thermal fuse so you would need a new g2 board. if it blinks 5 times, you need a new ballast (lamp driver)

Dec 07, 2008 | Sony Grand WEGA KF50WE610 50" Rear...

1 Answer

Projector


sounds like the lamp went, need exact model number kinda like searching for a Buick when you have a jaguar

Dec 11, 2007 | Projection Televisions

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