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Tantalum capacitors are widely used in electronics design these days. Tantalum capacitors offer a form of capacitor that provides a very high capacity density.
It appears this is a 7.5 microfarad (mfd) capacitor like the ones installed on fans. If your fan motor has two brown wires, in addition to the black and white power wire, just fasten the two brown wire to the leads on the capacitor and insulate the connection with electrical tape and mount the capacitor in some dry convenient location inside the controls section of your unit. Be carefull to mount the capacitor in a location where it does not short an electrical connection.
If the capacitor is replacing the low side of a dual capacitor, for example a 35/7.5 capacitor, extend another lead from the common side of the dual capacitor to one side of the 7.5 capacitor and place the one brown lead from the fan motor to the other lead on the capacitor. If trying to replace the lower side, it is better to just replace the dual capacitor.
sounds to me like capacitor faults on power supply,,,check for swollen capacitors that are leaking a black substance from the top of capacitor when swollen,,,(easy enough to see),,try replacing the capacitors with the exact same value in uf or mf but use a slightly higher volatage capacitor,,ie,,if it says 16v on the side of capacitor use the same or a higher voltage (if you use a higher voltage capacitor make sure theres enough space to refit as the higher the voltage the larger the capacitor,,make sure you replace it with the same amount of uf or mf which is also written on the side of the capacitor,,,,,hope this helps,,,
regards
kenny
Capacitor Failure Symptoms are sometime harder to identify without the right tools and expertise. Capacitors can be found in several different sizes and shapes. There may be one or multiple capacitors included in your ac with regards to the design. While the most popular capacitors are the types found on circuit boards, the ones most associated with air conditioning will be the bigger capacitors that assist start and run your motors. There are several motors present in an conditioner and heater systems:
Compressor Motor Run Capacitor: Here is the most popular capacitor that fails. Most of the time these are duel capacitors, which means that there are 2 capacitors built into one. A duel capacitor will have three terminals on the top where a single capacitor will simply have two terminals on top.
Outside Fan Motor Run Capacitor: That is the smaller capacitor found with or part of the Compressor Motor Capacitor. It helps start and run the outside fan that blows air through the outside coils.
Indoor Blower Motor Run Capacitor: Similar to the outdoor fan motor capacitor, it is a small, single (two terminals) capacitor that will help start and run the indoor blower motor.
Start Capacitor: Some models include an auxiliary start capacitor that helps jump start the motors. Most are found on the compressor. These are less common.
What information can you recover? The MFD rating is important. If you can take a picture of the wrecked one that could help. The capacitor will either be a run capacitor or a starting capacitor and the difference is important. The packaging of the capacitor is often a clue. Usually starting caps are in black phenolic tubes. Usually run capacitors are in metal cases. If the rating is 15MFD or less, the capacitor is likely a run capacitor.
I do not know what C7 capacitor is, nor the H7 designation you stated. C7 would suggest Capacitor number 7, to me. H7 would suggest a different electronic component.
If it is just capacitor replacement, and you have the tools, knowledge, and access to the capacitors, I would say perform the repair.
Electrolytic Capacitors are the weakest link of an electronic component. They are designed to be.
Computer engineers, and designers know this. They know that as time goes on, an electrolytic capacitor will break down. The chemical composition inside breaks down. (Electrolytic Paste)
This is why they use capacitors that are rated at twice the capability, of what is needed. As the capacitor breaks down to 50 percent good, it is still 100 percent good of what is needed.
Capacitors used on a motherboard, (Electrolytic or solid Polymer capacitors), are used as Filters, and Voltage Regulators.
The one's used as voltage regulators, are in the Motherboard Voltage Regulator Circuit,
Part of what the motherboard voltage regulator circuit does, is to regulate voltage for the Processor.
The Processor MUST have a steady, 'clean' supply of voltage, AND it must be within a VERY tight tolerance range. Too much, or too little, and the Processor turns off. (BIOS turns it off)
Also, these particular capacitors are in a Series circuit. This means that if even ONE goes bad, the entire circuit is down.
(They are Radial Aluminum Electrolytic Capacitors, that are used on an Intel D865GBF motherboard.
Use the information in A) above, to find the capacitor manufacturer's ratings. Voltage and Capacitance. {Microfarad} You can match up the diameter, and length, by measuring the capacitor)
Turn power off.
Pull the leads off the capacitor.
Read off the capacitor the microfarad rating. (example 5 mfd or 5/30 mfd)
If the capacitor is oval it will have two sets of lead connections.
If the capacitor is round it could have three sets of lead connections.
On the oval capacitor, with a multimeter set on mfd, place one meter lead on one set of lead connections on the capacitor and the other lead on the other set of lead connections on the capacitor. Make sure you have a good connection. Read the mfd reading on the meter. It should be within 5-6% of the stated mfd of the capacitor.
On the capacitor with three sets of leads you will need to look at the top of the capacitor by the lead connections and find which lead is "c", which is "HERM", and which is "fan". Place your multimeter lead on "c"(common) and "herm" lead and take the reading, then take your leads and place on "C" and "fan" and take the reading. Compare these readings with the rated mfd stated on the side of the capacitor.
That symptom of your televisions have problem in power supply.The power supply have some deffective parts like the capacitor.The capacitor is totaly leak that cause of voltage drop.The output voltage dosen't continue because of leak capacitor,the leak capacitor is mildly shorted.So try to check the capacitor and replace all leak capacitor.The leak capacitor can identify through visual checking if you don't know how to use capacitor tester.The leak capacitor is rounded shape at the top and sometime have moise.Try this sugestion.hope will it help you.Thank you..
Ideally you want to check a capacitor with a proper capacitance meter although it can be possible to check them with a multimeter.
If the size of the capacitor is very small, say mircofarads you probably wont be able to test it, however we will give it a try.
Discharge the capacitor first by shorting out the pins. BE WARNED!! IF IT IS A LARGE CAPACITOR OR A CAMERA CAPACITOR DO NOT ATTEMP THIS!! Capacitors can be very dangerous if handled incorrectly.
Find the polarity of the capacitor, there should be a black stripe that runs up the side of the capacitor with a negative sign in it, the leg that is closest to that is the negative.
Set your multimeter to resistance, 10k-1M ohm. Put the probes on the legs of the capacitor and instantly watch the display. The multimeter should show close to 0 ohms and then start increasing slowly. This is because the battery in the multimeter is actually charging the capacitor through the test probes.
If the capacitor shows this pattern then you are pretty much assured that it is working properly.
I must say again though, please be careful around capacitors as they can be very dangerous.
If the motor starts and runs the capacitor should be OK. Disconnect power, discharge the capacitor (if there is a spark noticed when discharging it it may be OK) Inspect the relief port to see if it has relieved pressure (some capacitors). Isolate the capacitor from the circuit and check it with a capacitor tester. It should match the capacitance rating on the capacitor (MFD). Or if you do not have one measure the resistance with a VOM first one way, then reverse the leads and measure the resistance the other way. If the meter goes high and then low that capacitor may be OK. A failed capacitor may show an open circuit or a short circuit, but one that has some capacitance left will kick the meter. without the capacitor tester you may not know if the capacitance is still as rated. It is not that expensive and if there are no other problems replace the capacitor
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