I was wondering if there is anything that can shock me or kill me if i start removing all the cables to replace the bad capacitors. I see what looks like cp 114 that looks a little puffy. I have a D52w20 RCA rear projection TV.
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Very common problem is the capacitor goes bad. The capacitor stores energy that starts the fan spinning. Turn ac on and take a long skinny screwdriver, or straighten a metal cotehanger and slide through fan cover and give it a little push, if it starts spinning indicator the capacitor has gone bad. They are fairly inexpensive for most ac units..and are pretty easy to replace. If you do replacethe capacitor is located in compartment with a metal cover on the side of outdoor unit. Be sure to kill power to ac before replacing, also the capacitor stores electricity..it can zap you if you touch the top of capacitor where plug connections are. Take a screwdriver and touch across the connection points and discharge the capacitor for safe handling..here are some images of what the capacitors look like..
If capacitor is bad and you replace, I suggest taking a picture of the capacitor while its connected in case you forget where the wires gp
Be very careful if you open up as the high voltages in capacitos can take a very long time to discharge unless discharged properly and if not done can Kill you even if tv switched off and unplugged the capacitors need to be carefully discharged- look up details on web .It may very well be the plasma screen is needing replaced and if so is too costly to contemplate and best to buy new tv.
First use a known good plug; new doesn't mean good all the time.
You need to check for spark by seeing if the plug or plug wire will arc to ground. When doing make sure insulate to yourself from it as there a 10-15 kv charge on that wire / plug if the coil is working and you will receive a nasty shock.
If no arc then check the ignition coil by removing the kill (stop) wire from the coil and try for again as above. If still no arc then the ignition coil is bad. If you now receive an arc after removing the kill (stop) wire then have either a bad kill (stop) switch or a short in the wiring.
If you replace the ignition coil the air is .010 -.012 normally on most small engines.
It is probably your power supply. A lot of TVs have weak capacitors that last only a few years before failing. Remove the TVs back cover and locate the board where the power cable plugs into. Make certain it is unplugged from wall power. Look at the board and the round cylindrical pieces soldered on the board. Look at the top of each one, if the metal cap is bulging outwards on any of them then it has failed. Inspect all of them for any burn spots or leaking, if you see any of these conditions than the capacitor is bad. Be very careful touching them, capacitors store electrical energy, so they give a pretty good shock. The bigger the capacitor the bigger the shock. I would advise you to leave TV unplugged for a couple of days before working on it, this will allow most of the capacitors to bleed off their energy. Look for the part number on the power board and search for that number on eBay or Google just to see if you can find it. If not than I wound have an electronics shop replace them if needed. If you do locate a complete power supply than replacing it yourself is straight forward and simple. Disconnect all cables and remove the screws holding the board. Reverse procedure to install new power supply.
many technicians make the mistake of using a hard start kit instead of replacing a bad run capacitor, the problem is that it can be ******* the compressor, and the start capacitor can also go bad, you can start with removing the capacitors and replacing with a new run capacitor and see if that gets it running, also can try another start capacitor with the new run capacitor, some manufactures engineer there systems in that way, if not the compressor may be done. *Be sure to check all the electrical connections including those at the compressor under the terminal cover.
This sounds like a bad capacitor in the power supply. This is a very common problem on rear projection and plasma TVs because they require a large amount of juice to start up from a powered off state. Replacing the power supply can be more than the cost of a new TV, but if you're handy with a soldering iron you can attempt to locate and replace the bad capacitors yourself.
Be sure to leave the TV unplugged for a few days before working on it to avoid electrical shock, and refer to your manual or any technical manuals you can find to locate the power supply on your particular set. (It's usually the brick with the plug coming out of it.) :)
I had the same thing happen to me, it turned out the the power supply failed. It is located on the right side of the printer. There was a capacitor that blew. After replacing the capacitor the printer started up just fine. You will need to remove the right panel and replace the capacitor. Hope this helps you.
The power supply is failing. One of the filter capacitors (1000 microfarad, 16 V, radial lead) has shorted and this kills the power supply. I have fixed 2 Viewsonic 930s by replacing the caps. However, if you do not know anything about electronics, please do not attempt replacing the capacitor. Installing the cap backwards will create additional problems. Also, the case is a bit of a bear to open.
You can always replace a lower voltage cap with a higher voltage just don't change the rating... In fact you could replace the 16v cap with a 400v cap if it would physically fit.
As far as replacing a zener under the heat sink, yes you'll probably have to remove the heat sink itself if it's blocking. And as for any words of wisdom - if your repair is unsuccessful try replacing the module. Shop Jimmy usually has them used if you don't want to spend full bore and order a new one.