Question about Hitachi 42EDT41 42 in. HD-Ready Plasma Television

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Side speakers one of my side speakers is blown in im trying 2 remove it..

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So...are you looking for a replacement speaker or instructions on how to gain access to it? Either way, I can help you.

Posted on Mar 08, 2008

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Open the cabinet (remove back panel). Either a wire came loose or one of those 2 speakers is blown.

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Rattling speakers?
1) Check speaker mounts - loose / missing screw? 2) The speaker driver quite possibly could be blown (paper cone or magnetic coil damage).
I would have the speaker in question removed and tested.

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Sounds like one side of speakers is working


Hi, my name is jeff and I work for a used cell phone and repair store in Sioux Falls South Dakota called THE CELL PHONE GUY. it sounds like your speaker is blown or there is a bad connection. with the iphone i believe you would need to solder that if im not mistaken. if you would like to get it fixed give us a call at 605 335 0411

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I think we blew a chanel is sounds very low?


try another speaker to that side you may have blown a speaker if it is the same as before on that side the yes the amp is blown on that side

Dec 12, 2009 | Technics Audio Players & Recorders

1 Answer

Speaker is cracking whats wrong


This means your speaker is likely blown. In a big screen tv, this will be hard to fix. You have several options:

1 - Manually unplug speaker - meaning cut the wires, wrap 2 ends SEPARATELY in elect. tape

2 - In the Audio Options menu (or whatever its called on your particular set) set the Balance all the way to the other side.

3 - Replace speaker with a new one (on my set I can remove the front panel and see the 2 small speakers). This is not possible on all sets.

Word!

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Audio system


here go to this site http://www.carstereohelp.com/stereoremovalPontiacGrandAm1StrR.htm this walks you right through your first problem.

Jul 01, 2008 | 1998 Pontiac Grand Am

2 Answers

The bass speaker doesnt work


OK, Bose owners out there listen up and listen good. Here's the real scoop on 1.(getting access to the inside of most bose subwoofers, 2.( repairing said subwoofer.
 
Follow these steps in removing the cover of your subwoofer. Unscrew the two screws from the cover. (They are on the input/output side of the cover) Remove the two knobs (Bass and treble volume).
 
On the opposite side of the cover, (put those damn shoes back in the closet) there is a lockout tab that needs to be swung out, it moves 90 degrees in a counter-clockwise direction and is located under the center of the cover.
 
A small flat blade screwdriver works great for swinging this tab out and will be necessary for the next step (the screwdriver that is).
 
On the same side (opposite the input/output side) there are two small tabs near the edges of the cover, one on the right and it's counterpart on the left. If you look closely in the gap between the cover and the sub itself, you will see these 3/8" wide tabs near the edges and towards the top of the cover.
 
With the flat blade screwdriver, put the blade between the cover and on the tab and pull down. Then with your hand balled into a fist, gently hit that side of the cover towards the input/output side. the cover will move only slightly but the tab should remain depressed.
 
Do the same procedure on the opposite side of the cover and it will slide about a 1/2 to 3/4" towards the input/output side and can then be removed by pulling it straight up and off of the cabinet.
 
Yay! If you get this far without incident then you are ready to implement repairs. In the case of the AM15's, normally what happens is a resistor will open up and prevent the triac (turn-on device) from firing.
 
The fuse is on the underside of the PC board and this above mentioned resistor is a 100 ohm, surface mount "chip" resistor on the top side of the PC board. It will not appear to be bad but trust me, if the fuse is good and the sub will not turn on... replace it!
 
You don't have to use a chip resistor since as a consumer you may have a rough time finding one but a 1/8 watt or 1/4 watt resistor you can find at any Radio Shack will work just dandy in this application.
 
Cut the leads short and solder the two cut leads to the pads on the circuit board where the chip resistor is currently sitting. The chip resistor will be black, about 1/4" long, 1/8" wide and have "101" printed on it's surface. On some models they used two 200 ohm resistors in parallel but the result is the same. One 1/4w axial lead resistor will do just fine. Plug it up and give it a try. (Before you replace the cover).
 
Secondly, if the fuse is blown on a "Lifestyle" Bose subwoofer, contrary to popular belief, it blew for a reason. The speaker outputs and the subwoofer output devices are TDA7294 IC's with TIP142 and TIP147 Motorola transistors used as current supplements to these said output devices. If the fuse is blown and replacing it only results in another blown fuse then chances are good that one or more of these are blown. In some cases it's very easy to tell, the front of these IC's will be blown off and/or you will see burn marks on the board where they are mounted. These devices are located inside the amp portion of the subwoofer. (The black metal heatsink underneath the input/preamp PCB. As a consumer, if the fuse is blown, unless you are familiar with soldering techniques and troubleshooting electronics, leave this to the pro's. It isn't as easy as you might think and you can destroy the PCB in your attempts to repair it.
 
 This was from a Guru of Bose systems at ecoustics.com: Mark Burgess

Mar 15, 2008 | Bose Acoustimass 15 System

5 Answers

Speaker volume on one side extremely low


i have the same speakers.
but isntead of one side going,
both sides are dead.
and the light on the control side doesnt even turn on
it is plugged in
but i do not know what is wrong

solutions please?
darkhunter234@hotmail.com

Jan 24, 2008 | Dell A425 Computer Speakers

1 Answer

Messed up speaker


Good day Nessasman
TIme to get back to warranty,
it is a bad inside speaker, or may be the balance of the speakers is at the other side , try in control panel, and multimedia settings first.
Good Luck

Nov 27, 2007 | Audio Players & Recorders

2 Answers

Denon AVR-3000


First, check your balance control and make sure that it is centered. Next, you might have anything from a bad output relay or fuse to a bad driver/component...accordianman

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