Question about InFocus ScreenPlay 4805 Multimedia Projector

1 Answer

How do I open it for troubleshooting? I need to look inside for a blown component. Projector popped while using it and light went out suddenly. I have testedf with a new lamp but no go.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Vice President:

    An expert whose answer gotĀ voted for 100 times.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 269 Answers

First pop the focus ring of the lens assy using a wide flat head. remove 8 screws on the bottom,2 or 3 on the rear. pry the bottom of the front bezel away from the bottom of the projector being careful not to damage the tabs that hold the bezel to the top. repeat the same for the rear bezel, disconnect the speaker and the keypad from the top cover and remove the top cover. most likely the pop you heard would be the glass fuse on the power supply on the side next to the lamp door, but also could have been the power input board next to the on/off switch, OR the lamp may have exploded.

Posted on Aug 27, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Samsung microwave suddenly went dead


You have blown a fuse. Check inside the oven chamber and look for missing powder paint or signs of arcing, if so there is a paint to repair microwaves for this issue or else just dispose of the microwave. If the inside is good remove all the screws and remove the cover. Replace the fuse. If the magnetron was making louder noises prior then replace the magnetron. Since the fuse went the giant capacitor is likely bad. While the cabinet is open make sure to look for burned wires, check the continuity of thermal cutoffs, and check the main circuit-board for burned traces or components. The relays in most electronics are known for arcing (spot welding) and staying in the wrong position. Tap them hard with the back end of a screwdriver. During all of this use safe electrical practices by having the power cord unplugged. The capacitor could still have a high charge on it so be careful.

Dec 05, 2013 | Samsung SMH8165STE Microwave Oven

1 Answer

Optoma movie time projector has a vibrating sound


Normally this sound noise is the small FAN inside. Dirty or faulty. You must open the proyector, or go to some shop repair.

God bless you

Jan 25, 2013 | Optoma EP706 Projector Remote Control

1 Answer

I was watching the TV until I heard a pop and the screen went completely black. The sound continued but I couldn't see anything.


That poped sound may have come from blown component in the backlight inverter board or in the 24vdc power supply. You have to open it up and inspect the inside for any sign of bad components.
Please read my guide to get more understanding.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Jun 21, 2011 | LG Televison & Video

1 Answer

My projector it not working! i press the power button and it green light but it not light show can you please help me and also colour keep flashing.


Sounds like the lamp might have blown. Sometimes the projector can't tell if the lamp is blown, so the usual red indicator light doesn't show.

After the projector is on, if you push menu on the remote do you see anything? Maybe the brightness is just turned down all the way. If you see no menu when you push the menu button it's time to inspect the lamp.

Open up the projector and pull out the lamp. You'll probably need a screwdriver to remove the cover, and then another screwdriver to unscrew the lamp and pull it out. Be careful not to touch the bulb's insides. Is the lamp on the inside of the fixture bulbous, or cracked. Look closely.

Mar 28, 2011 | Optoma EP721 Projector

2 Answers

My 42 inch flat screen was on and the all of sudden there was a big pop and the TV went blank. I could hear it clicking inside after this happened. Pulled the power plug to stop it. What caused the big...


It sounds like one of the Electrolytic Capacitors in the TV has gone, this can be caused by voltage fluctuations, Ambient Temperatures around the TV and sometimes they just fail for no apparent reason. If you are handy with some basic electronic tools you could open the back of the TV and you would possibly see the remains of the blown component as bits of paper like material around where a capacitor used to be.

Oct 25, 2010 | Samsung Televison & Video

1 Answer

Suddenly went blank while in use no power lighttotally dead


Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://www.badcaps.net
http://en.wikipedia.org/wiki/Capacitor_plague

May 11, 2010 | ASUS VW192S Monitor

1 Answer

Picture is out on LG LCD TV


The problem can be blown up components in the back lights inverter board or in the 24VDC power supply section. You need to open up the back look to see if you can locate blown components. There should be 24vdc on one of the power supply output connectors pins.
Parts: http://www.shopjimmy.com/catalogsearch/result/index/?q=LG+42LC2D+&limit=200&stock=all

Jan 02, 2010 | LG 42LC2D 42 in. LCD HDTV

1 Answer

I have an Optoma EP745 projector. I heard a 'pop'


check all the fans, if still working. if the problem occur get assist to the nearest technician im sure your lamp balasst was deffective.

Oct 22, 2009 | Optoma EP738 Multimedia Projector

1 Answer

My LP 750 is dead


Hi there

This sounds like a faulty Mainboard - could you supply me with your country and the part number on the Mainboard ?

May 12, 2008 | InFocus LP 750 Multimedia Projector

1 Answer

Blows 2 120 volt 6.3 amp fuses near power supply


You have a short either from foreign object inside or blown audio amps. Look for any chard or burnt components.

Sep 13, 2007 | Pioneer VSX-454 Receiver

Not finding what you are looking for?
InFocus ScreenPlay 4805 Multimedia Projector Logo

Related Topics:

79 people viewed this question

Ask a Question

Usually answered in minutes!

Top InFocus Office Equipment & Supplies Experts

Juan Carlos Pacheco

Level 1 Expert

36 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

The Knight
The Knight

Level 3 Expert

73619 Answers

Are you an InFocus Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...