Question about Canon Pixma MP990 InkJet Printer

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It won't turn on, i unplugged and waited. all i get is a yellow light but the screen is dead

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  • Matt Duemler Oct 08, 2010

    Did you unplug the cord from just the printer or did you unplug the power cord at the wall as well?
    (Make sure you unplug the power cord from the outlet for at least 30 seconds)

  • marsha302 Oct 09, 2010

    i did that. called canon and it is just broken and needs to be sent back. i didnt even touch it i dont know how it would break

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SOURCE: My Canon Pixma MP990 stopped working. First the

It sounds like you have an electronic problem, it is most likely a faulty scanner or logic board. although a faulty print head can take out a logic.check that there is no burning smell or damage evident on the underside of the print head before trying a logic.
the machine will require disassembly and parts replacement.

Posted on Aug 16, 2011

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2 Answers

What's your problem? won't turn on..... yellow/orange light continually flashes three times...


Toshiba Regza 37in - 37HL17
TV will not turn on - Yellow power ind. Light blinks three times...
Fixed with a firmware update (hard to believe, but true). Search Google for a file named: 2007SEN069.zip (don't worry if the page you find it on doesn't mention the 37HL17 - it worked fine). Unzip the file, and copy the 3 folders and 3 files to the root of a small SD card. The SD card MUST be 2GB or less in size (I used a 1GB card), and it MUST be formatted with FAT-16 (not FAT-32). Mine was pre-formatted as FAT (FAT-16). The SD port is on the back of the TV behind a cover plate near the power cable. You do NOT need to remove the back cover of the TV, just the small cover plate (1 screw). UNPLUG the TV; remove the cover plate; insert the SD card (prepped as explained above); Plug in the TV; Watch the yellow lights blink, then turn blue, then go dark; UNPLUG the TV; remove the SD Card and replace the cover; Plug in the TV; Yellow lights will blink a few times (this is normal); when blinking stops, turn on the TV and you should be good to go. :-)
Pictures attached are from a Toshiba software upgrade bulletin I found online.
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Aug 06, 2012 | Toshiba Regza 37HL17 37 in. LCD TV

1 Answer

My ps3 turned off during game play and the light flashed blue green yellow and then kept flashing red and if I wait a long time and try again the fan turns on light god blue for one sec then turn a yellow...


I'm afraid you have gotten the Yellow Light of Death ( YLOD ) you will need to have your PS3 repaired by a technician or you can Google YLOD and you will find a repair guide.

May 03, 2012 | Sony Video Game Consoles & Games

1 Answer

LG 32LH30 screen won't power up. Red light at bottom glows hi to low, but no picture. Unplugged and waited overnight, plugged in again, still no picture.


There is a way to tell if you have a bad board, or a bad panel.

1. Make the room dark and turn on the TV. Can you see it light up? If so, does it stay lit or turn right back off?

2. If the panel lights, but you have no picture, I would suspect the T-con. Some units now have the T-con incorporated with the main board, so you will need to check.

3. If you never get any light at all, then I would suspect the power supply.

4. If you only get light for a second or two, then you have a bad panel.

Apr 10, 2012 | LG 32LH30 32 in. LCD HDTV

2 Answers

HiI have a dell desktop and won't start. for a second the fan spin than the power button turn yellow. help


hi,
Does your desktop is making any beap sounds? Are you able to see the dell logo on the startup on the screen? Please do let me know these things.

Mar 08, 2012 | Dell OptiPlex GX280 PC Desktop

1 Answer

My Canon Pixma MP990 stopped working. First the wi-fi light went out, and the LCD screen went dead. Then the blue light stopped coming on at all, and all I have when I plug in the printer is the yellow...


It sounds like you have an electronic problem, it is most likely a faulty scanner or logic board. although a faulty print head can take out a logic.check that there is no burning smell or damage evident on the underside of the print head before trying a logic.
the machine will require disassembly and parts replacement.

Aug 16, 2011 | Canon Pixma MP990 InkJet Printer

1 Answer

Have to unplug it after I turn it off to get it to come back on.


Power supply board is dead.Have dead capacitors that bulges up on it top,or puff up on it top.U know basic electronic's and soldering.Replaced these bulges and puff up on it top.Or tries wesite like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.After the power supply board is fix or replaced,the power LED indicator light on the LCD panel will not flikers anymore and u will have a solid green light all the times and get the power back to normal.

May 05, 2010 | Polaroid FLM-3734B 37 in. LCD HDTV

1 Answer

Power light comes on but no picture. Black screen


if the set appears dead ecept for the power light, unplug the power cord from the back of the set, wait two minutes, then plug it back in and try to turn on the tv. Doing this worked for me.

Jan 27, 2010 | Sanyo DP42746 42 in. Plasma Television

1 Answer

Yellow lights


Yellow lights and blinking red lights indicates general hardware failure on ps3. If your ps3 is still under warranty call Sony and they will send you a new or refurbshed one. North America: 1-800-345-SONY (7669) United Kingdom: 08705 998877
Now you could try doing a few things (hey it's worth a try!)
1. Turn off the switch in the back and wait a few minutes. Turn it back on and try it again. If that doesn't work it may be dead.

Nov 21, 2009 | Sony Playstation 3 (PS3) Console

1 Answer

Wii is dead


1. push the reset button and if that doesn't work unplug all cords and memory cards (including sd) from wii and unplug av from the wii and the outlet in wall. Wait 2-3 min or unplug the wii overnight and The trick i use was to literally smack the power supply on the ground and plug it back in. It seemed to work for a few weeks, until you buy a new power cord Don't call Nintendo unless you've got some money. it'll be $82 bucks.

May 06, 2009 | Nintendo Wii Console

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