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Capacitor with marking of C404

Is there any replacement for this capacitor

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The actual value and voltage ratings of a capacitor will be printed around its case. The C404 indicates its part number only. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Refer some schematics.

Posted on Nov 25, 2014

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Problems with screen


It is due to power supply regulator fault. Check the main power supply regulator section circuits for any damaged [bulged] electrolytic capacitors. Replace the suspected capacitors. When replace an electrolytic capacitor, make sure about its polarity. Like torch batteries, these capacitors also have both [+ve] and [_ve] terminals, and should match it with markings at the printed circuit board, when replace them. If the polarity changes when replacing them, they might burst out. Normally, [-ve] marking will be there on its body. See the example of the suspected component. Both good and damaged. See the bulged capacitor and good one on the same frame.
7_12_2012_2_53_53_pm.jpg
Bulged [damaged]
7_12_2012_2_54_50_pm.jpg
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7_12_2012_2_55_19_pm.jpg
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7_12_2012_2_56_05_pm.jpg
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7_12_2012_2_56_56_pm.jpg
Good one with [-ve] lead marking..

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Toshiba 19w330db was coming on until i change acap on little board from330uf 25v put in 440uf 25v now no power


Replacing a 220Mfd capacitor with 440Mfd wond poise this problem. Just check, whether the the polarity of the repalced capacitor have been reversed. Electrolytic capacitors have both +Ve and -Ve terminals. It reversed, the capacitor will insert a short circuit, when you switch ON the set. On some occations, it will heat up and will burst out. Check this first. The polarity of electrolytic capacitors will be marked on the printed circuit board too. Check whether the markings at the printed circuit board matches with the polarity of electrolytic capacitor you have recently replaced.

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1 Answer

How to fix the power capitors on a TV


Hello
It is eay to replace the power capacitors. Just resolder them out from the board and solder a new one in place. Make sure the polarity of the capacitor. Electrolytic capacitors will have both +ve and -- Ve polarity. It will be marked both on the capacitor and printed circuit board. Normally --Ve markings can be seen on most capacitors. Coinside this marking to the marking at the printed circuit board. If the polarity reverses, the capacitor will explode as you switch ON the set.
See the negative (--Ve) marking.

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My fan motor still seiezes up after i replaced it with new one i need to replace capaitor and dont know which one i need


Hi ace,
If there are two capacitors in the air cond, the smaller one belongs to the fan motor. Shut the power off, and take the capacitor out after marking where the wires go. There should be a place on the capacitor that tells you the mfd (microferad). Most fan motors these days have a 7.5 or a 5 mfd capacitor if it is a home unit. These capacitors are not expensive, but you should always put a new one in every time you change the motor. If you only have one capacitor in the unit, you will have to change it. It will be a 3 post capacitor that runs the compressor and the fan. It will have markings on it that have two different mfd ratings, one for the motor and one for the compressor.Be sure to mark where the wires go!
Hope this helps you get your cool back on. Mark

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1 Answer

Hi I have a viewsonic VX922 which I have replaced the caps but on ressembly I can't remember which way round the four back light small plugs go. Can you please help. Thanks Peter


If the capacitors are polarised electrolytic type then they have a + and - leads. The - lead is marked on the capacitor with a stripe and a - sign. The circuit board where the capacitors are located will be marked with a - sign, make sure the capacitors are located correctly acording to the markings.
You need to put the capacitors with the correct values (capacitor) in the correct place on the circuit board.

If the capacitors are non polarised type the it does not matter which way they are inserted on the circuit board, but they have to be the correct value (capacitor).

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2 Answers

My computer suddenly shutdown. The 3 condensators near the cpu are inflated. Howe can I test my motherboard (gigabyte 8s661fxm-rz) to see if this is the problem? Sorry for my bad enghlish!


Hello,

If the capacitors that are inflated on *********** board they will have to be replaced.

There is a high probability that your machine shut down because these capacitors have failed.

They are actually fairly easy to replace, IF you are experienced doing soldering of this type. They are probably the easiest thing (soldered in) to replace on a mother board.

If you want to try, make a note of their values. You you see something like '600uf 12v' on them. This means 600 microfarad 12 volts. Purchase new capacitors (these are electrolytic capacitors) that match these values. They are inexpensive. If there are more than one value then make a drawing showing the location of the various values.

These capacitors must be reinstalled with the correct polarity. On the board there will be either a white circle with half the circle filled in or some other marking. The marking always indicates the negative terminal. The negative terminal is marked on the capacitor with a row of arrows (->->->).

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4 Answers

I just pulled my 9600gt geforce card from my machine to find 3 blown capacitors 2 are marked FZ87.1500. 6.3v and the 3rd is marked FZ7C.1000. 6.3v any ideas if they are replaceable or is card worth...


The faulty capacitors can be replaced. If the values are marked 1500uF and 1000uF (this means microfrads) and they are electrolytic capacitors. Make sure you purchase capacitors of the same uF and voltage. The voltage maybe higher but it will be larger but may not fit on the circuit board.
These are polarized capacitors, they have a stripe on one side of the capacitor to indicate the negative lead of the capacitor. These capacitors must be inserted in the circuit board with the leads in the correct position. Make sure you note the position of the positive and negative leads of the capacitors on the circuit board.

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1 Answer

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Where is the location of Lincoln Mark 8 VIII


Air Suspension Compressor Motor/Vent Solenoid : Lower RH front corner of engine compartment C134
Air Suspension Switch : Rear side of trunk C458
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which is digikey: 785-1046-1-ND

Moose

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