Question about Level 9 Sound Designs MM-1000 Computer Speakers

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No Power to Sub

I think that my power supply isnt working anymore... when i opened up the casing it looks like the fuse might be blown? can this be fixed or is it something else? please help....thanks

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  • 457 Answers

If you think the fuse is blown replace it take card you use the right one (fuse) then see if it goes.

Posted on Sep 04, 2007

  • Peter Hirawani
    Peter Hirawani Sep 04, 2007

    sorry I misspelt a word just above or below. It meant to be care not card.....sorry

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Posted on Jan 02, 2017

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I have ACTIVE SUBWOOFER: COBALT SW 800 from JM lab Problem is i dont have orig.power cable so i connected PC cable with same output.. Fuse blown I replaced the fuse for original and fuse blown again


Oh dear you have inadvertently caused a great deal of internal damage to the sub by connecting the wrong power cable. Fuses blow when there is an overload. Often caused by a short circuited semi-conductor. In this case it could be anywhere in the power supply section of the sub.

Mar 12, 2017 | The Audio Players & Recorders

1 Answer

Model No. PWR2006-37. Where can I buy a power supply?


Before rushing off to buy a replacement power supply, open your sub and check for a blown fuse.

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LG 42PQ30 plasma tv wont turn on anymore, when you plug the tv in it makes a click noise and when you hit the power button the blue light comes on then changes to red after couple seconds. Note the...


I see so many here with no sound/nopicture issues:

ISSUES:

1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.5_15_2012_1_19_09_pm.jpg

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4 Answers

Controler and sub woofer no power


This previous diagnostic, isn't good, if you test and no continuity between the positive and negative terminals generally means a blown sub.

You won't always get scratching or distortion from a blown sub. Sometimes the voice coil just overheats and burns out like a fuse. In this case there will be no sound at all from the sub, because no power can flow through the voice coil. A continuity test between the positive and negative terminals will show no connection.

Hope this helps.

Jul 05, 2011 | Audio Players & Recorders

1 Answer

Sub-Woofer blowing fuses.


You should open it up and look for a short. Usually, an exposed wire is touching metal. Wrap the wire with electrical tape and look for a ground wires that are loose. That will blow fuses too.

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Where is the fuse for bose wave radio


Upon opening the Bose Wave radio.. 4 screws only from the bottom. The fuse is located at the top side of the PCB. It is a small fuse. Kindly inform me if you need a picture. I am repairing one now

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My printer does not turn on


hi,
CANON PIXMA MP160 All-In-One InkJet Printer
has few common problems. Such as Driver CD lost, Scanner does not work, Connection problem etc. For find all these software solution just click here....
75aba9d.jpg3f22050.jpg

http://www.canon.com/printer/prob676ijt65/solution

ppobmi3

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Actually, there is a fuse. You need to take out all the screws and remove the two dials so you can take off the panel. Look to where the power cord connects to the board, and you will see the fuse. It is a 125V 4 amp fuse.

Jul 24, 2008 | Sony SA-WM500 Subwoofer

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