Rockford T10001bd: Capacitor buzzing

high pitched sound is the bearings, if its a buzzing sound and motor doesn't come on, run capacitor may be shot

Sounds like a bad capacitor. Careful, they hold a big charge long after being turned off. They are usually not too expensive. Bad ones will bulge at the top or bottom, leak.

Unusual noises coming from your computer can mean anything from serious trouble to no problems at all. The uncertainty, together with the expense of computer hardware components -- not to mention the risk of losing data and being without your computer -- make it important for you to investigate any unusual sounds as soon as they come to your attention.

Normal Sounds
Not every high-pitched sound coming from your computer suggests a problem. Computers also generate a variety of sounds as part of their normal operation. In particular, anything that spins can easily make noise. This includes cooling fans and the hard drive. In the case of fans, their sound sometimes grows louder when the computer works harder because it needs to run the fans at a faster speed in order to dissipate the extra heat from the higher level of operation. You probably don't need to concern yourself with an unknown high-pitched sound unless you have used the computer for a while and the sound is new. b> Capacitors Capacitors sometimes make a high-pitched buzzing sound, either when under a high load or when defective. In the latter case, faulty construction can cause gas to build up inside the capacitor, which then vents under pressure and sometimes creates an audible noise. Defective capacitors can damage or destroy other hardware. f you suspect a bad capacitor, or don't know what else it might be, give your computer an inspection. b> Capacitors Inspection b> Your computer has capacitors all over it, including on the motherboard and on nearly everything that plugs into the motherboard, so tracking down a bad capacitor can take some time -- especially if you don't know whether a capacitor is actually causing the problem. Many capacitors look like tiny little soda cans and smaller ones look like squat cylinders. Failed capacitors usually bulge out at the top or have crusty residue around them. Be sure to check not just the motherboard but also any other hardware components with visible capacitors on them. If you find a bad capacitor, keep looking in case you find more. Afterward, don't use your computer again until you repair or replace the faulty hardware. Fans b> The bearings and motors on fans sometimes go bad. If this happens then the fan may begin to whine, whether or not it stops working. If feasible, open the side panel of your computer tower with the system running and try to pinpoint the exact source of the sound. If you can determine that the noise is coming from a fan, power down the computer and replace that fan. b> Power Supply Unit b> Power supply units sometimes make a high-pitched whining or droning sound; it can happen continuously, when you perform certain tasks on the computer or when you take the power load high enough. This can happen either because of cheap construction or because the unit is too close to maximum capacity. As you would do to check the fans, open the side panel while the computer is running and put your ear up to the PSU. If this is where the noise is coming from, replace the unit with a high-quality model and upgrade to a higher power output if you need to do so. Hope this helps.

The only thing I can think of that would have this effect is an Electolytic Capacitor in the Audio Output Stage. Maybe one of the ones that connect to the speaker. It may be leaking the voltage after power down.

You amplifier is having a noise amplification from one of its preamplifiers.The buzzing could be from the power section , the DC supply having lost the filter capacitor. Check this out and add a sam value capacitor in parallel . if the buzz stops the fault is comfirmed. Usually the a/c transcient noise coming into the DC can cause this buzz. If not check if the filter has failed in the preamp. Isolating the section can get to the fault. Howeverr I still hope that the DC power filter capacitor can be faulty. Hope this helps Good day

that amp should beat the hell out of those subs but l5s can handle so much damn power

Hi there are numerous places to buy parts for Rockford Fosgate amps. You can go directly to the support section at rockfordfosgate.com or there main repair center is landis tech in North Carolina. Or you can try Freemans car sterio Charlotte, NC
6500 E. Independence Blvd.
Charlotte, NC 28212
704.531.0550 ask for Jay in parts service. Thank you for using Fixya.com

I would not remove the thermistor as it is there for your own protection. Rather take the amplifier in and have it checked. It can be something as simple as a dry or loose joint. Removing the thermistor can result in a total burnout of the output or power supply stage. If not both. Cost are extremely high in repairing RF Amplifiers.

The 1 farad capacitor is something added to current hungry systems to help keep the supply voltage at the proper operating level.
If your amp does not work after putting one in your system, but it worked before you put it in, you most likely have it installed wrong.
The capacitor should be put in parallel with the main +B voltage of the amplifier. That means you would connect the positive side of the capacitor to the +B voltage supply of the amplifier and the negative side of the capacitor would go to the chassis ground.

If you have it connected in series, or inline with the +B voltage supply, the capacitor would be blocking the voltage to the amplifier.

Without more information on your problem that is the best answer I can give you.
If this does not help, please supply more information and I will be happy to help you further.

Probably a loose coil or bad ground in the amp itself. Contact www.audiotekx.com, ask for Jason, he can help you and is the best out there. The problem you're having is extremely tricky to rectify, I had an amp with the same problem at it stumped multiple techs, some that had been in the business 35 years, yet Jason got it solved.