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Farad Car
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 PYRAMID CAR AUDIO CAP160DBL NEW 1.6 FARAD HIGH QUALITY DIGITAL POWER CAPACITOR  US $41.99
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 PYLE CAR AUDIO PLDCP17 NEW DIGITAL CAR POWER CAPACITOR 1.7 FARAD WITH BRACKETS US $49.99
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Troubleshooting LCD monitor power supply pack is easier than the crt monitor power supply. It is small and compact and usually has only one output which is 12 volt and range from 2 ampere to over 4 ampere. Some designed have 18 and 24 volts also. Nowadays most LCD power supplies are build into the main board such as the Dell E151FP LCD Monitor while the older type were separated as power pack module.
The power pack module type is easy to diagnose because you can replace another working unit just to make sure is the power pack that giving problem. You may also use an external dc power supply to power up the LCD to confirm if the power pack is faulty. If you do not have the external dc power supply, you can always use this method to isolate the problem especially the symptoms are no power, low power and power blink. Using the rear light bulb (12 volt) from a car and connect it to the power pack output jack. If it light brightly then the power pack is okay. If it blink or dim the power pack have problem. Why have to use this method to test it? Because, if there are components shorted or leaky at the LCD main board, it will affect the power supply performance.
From experienced, most of the LCD power supply problems whether in the power pack or built into main board were due to the failure of electrolytic capacitors (most probably due to heat) in the primary and secondary section. Most of the capacitors have a high ESR which causes the power supply to produce low output, blink or no power at all. Typical value electrolytic capacitors in the primary side are 47 and 100 micro farad 50 Volt and the secondary sides are 1000 to 2200 micro farad 25 volt. Sometimes you can see the capacitor top casing became bulge and the sleeve that covered the capacitor casing turned into darker color like brownish.
The power section in some of the LCD screen are still using the UC3842 pulse width modulation (pwm) ic. This type of ic is quite easy to find in the market compare to some power ic which is very difficult to get. Samsung 153V LCD monitor is using the TOP247F power ic which is quite easy to troubleshoot if power fail in this model. Some power pack that came in only have minor burnt and after cleaning it and replaced the fuse, it will work as good as the new one.
Troubleshooting LCD power supply is not that difficult provided if you know how a power supply work. If you are unsure of how to troubleshoot power supply, I urge you to read all my power supply articles at the power supply page. I will continue to post more power supplies articles at that page and hope you could drop by more often to check out my website.
Jestine Yong is an electronic repairer and a writer. For more LCD repair information please visit his electronic repair website now!
All About a Car Audio Capacitor
A car audio capacitor makes a great accessory in your car audio system. It will ensure that your speakers are getting enough power at all times, especially during stress conditions where all the needed power puts a strain on your car’s battery. If your lights dim when you use your car audio system, this is because your amplifier will draw more power than your car’s electrical system can handle. A car audio capacitor will fix this problem because its sole duty is to keep a reserve of power. Your car’s voltage will never drop while your system is playing as long as you have a capacitor. An example of this is if your system hits a really low bass note, you will notice that your lights will dim because your amplifier is drawing more power that it normally does – your car’s battery cannot handle the increased stress.
You can install a car audio capacitor yourself as they come with instructions, or if you are not comfortable installing it yourself, you can purchase a capacitor and have it installed locally. Some series of capacitors are made for easy installation and all you will have to do is cut the power and ground and then insert the distribution block. There are a lot of online sites where you can get a good deal, so peruse a couple sites before choosing the capacitor that is right for your car. A car audio capacitor is measured in farads (the capacitor’s storage potential) and prices can range anywhere from thirty or forty dollars up to around three hundred dollars.
A car audio capacitor really is an overlooked accessory. If you want to ensure that the time spent in your car is not fraught with disturbances in your car’s audio system, then a capacitor is just what you are looking for!
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Simon is the web entrepreneur who sells series of female products. Check out the site ameda purely yours breast pump for more information.
I have a 2 farad capacitor in my car for my amp. When I turn my car off it is still on..how do I turn it off?
This is normal. The display will only come on when the circuitry on the cap sense a difference in voltage. Once the voltage stabilizes, the display will shut off until it sees a change again.
Completely discharging and charging a cap (using a switch) without using the correct method may do damage.
A cap is only good so far as the audio system isn't trying to pull too much from the electrical system. A cap doesn't provide more power, it's designed to 'stiffen' the voltage to the amp, nothing esle. If the current isn't there, a cap won't help. The alternator must have at least 20% more amperage power than the entire vehicle and sound system combined for a cap to be of benefit which is ironically the same requirements for an amp to be efficient.
If your total system power is 1000 watts RMS or more, you will need to:
1. Upgrade the alternator to a high output alternator
2. Upgrade to a heavy duty deep cycle battery
3. Upgrade the "Big 3" - that is to replace the power wire between the battery and alternator, the ground from the battery to the chassis and the ground strap from the engine/tranny to the chassis with at least 1/0 AWG wire.
Failure to do this will result in you replacing them anyway as the alternator will eventually fail.
Here is a guide that will calculate what size alternator and power wires you need http://www.datafilehost.com/download.php?file=6d26c621
More info here http://spkrbox1.spaces.live.com
Passaic man charged in murder of Cliffside Park man outside club
Farad Anthony, 20, fled to Maryland after the Sept. 10 shooting death of Louis Morilla, 20, in a parking lot outside the Zarco Lounge in Passaic, police said.
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