can power conditioners cause lcd displays to function factory

The HD Guru’s readers have asked for the real story on power line conditioners. Are they really needed with an HDTV? Do they provide a sharper picture as some salesmen claim? How well do they protect the TV in case of a lightening strike or other electrical spike? What about surge protectors and uninterruptible power supplies (UPS)? The HD Guru responds.

In the United States the alternating current (AC) sent from your electric company should be delivered to your home at a steady rate of 120 volts at 60 cycles per second. In some parts of the US, there are variations, resulting in voltages that are either too high or too low. Sometimes interruptions cut the power altogether. Delivery of too much power is called a voltage surge; too little, a voltage droop or sag. Electrical storms can deliver lightening strikes, which can produce catastrophic voltage surges capable of destroying the power supplies of all the electronics plugged into the system, whether they’re powered up or not. Air conditioner and refrigerator motors powering on and off can also cause momentary voltage fluctuations. Another potential power problem is electrical interference caused by industrial grade electrical equipment operating nearby as would be found in a factory. Your home’s wiring may also pick up electrical line interference or radio frequency interference (RFI) caused by, among other things, broadcast transmitters located in your vicinity.

Fluctuating voltages can cause lights to brighten and dim. TV, lights and other electrical devices may momentarily shut off due to total voltage dropouts. Radio frequency interference can create hum and/or video noise bars and static.

Power conditioners can’t give your digital HDTV a sharper picture or better color, regardless of display technology, whether plasma, LCD, DLP, SXRD, or DILA rear projection. Period. Resolution is, by definition fixed, and so cannot be increased. If a salesman tells you otherwise, ask why are there no power conditioners connected to the dozens of TVs on display. All HDTVs have internal power supplies designed to filter and transform the incoming AC to voltages necessary for the set’s operational needs. These built-in power supplies do a great job, and are designed to accept a fairly wide range of line voltages. Can a power conditioner clean up heavy interference in your power line? Yes, but most of the time they are simply not necessary and will be of no use because the vast majority of households are free of electrical interference.

While power conditioners cannot improve your picture, a surge protector can protect your set in the event of a power surge. What’s needed depends on the display and the amount of protection you can afford. For LCDs and plasmas the HD Guru suggests a surge protector at the very minimum. According to experts, the rating should be at least 360 joules. These are very inexpensive, with prices starting at under $20. For lamp driven devices such as microdisplay front and rear projectors, including LCOS (Sony SXRD and JVC DiLA), DLP and LCD, you should purchase an uninterruptible power supplies (UPS). The HD Guru also recommends using the UPS with digital video recorders (DVRs like TiVo). A UPS will prevent the lamp’s cooling fan motor (or hard drive in the DVR) from shutting off during a power failure. You need just enough battery power to cool off the projector to prevent premature lamp failure or a DVR’s power down. 10 minutes worth of battery back up is more than sufficient. Virtually all UPS units also have built-in surge protection.

UPSs’ are either on-line or off-line designs. The on-lines are best because they actively filter and convert AC wall power into DC (Direct Current) to charge the battery, while simultaneously converting the DC back to AC to run your HDTV or DVR. In addition to offering excellent line conditioning, on-line UPS systems provide surge protection. Because it’s “on-line” there is no voltage drop when the AC power fails. The switch to battery backup is seamless.

The Tripp-Lite SU750XL is a good on-line UPS. Rated at 750VA, it will run a 500-watt load for about 10 minutes, which is plenty of time to cool off the lamp in any projector or properly shut down a TiVo. While it retails for $449, a quick internet search found it for $288.93 + shipping.

Depending upon capacity off-line UPS prices start at around $40. Because the AC in/out circuitry is not coupled to the output there’s around a 1-millisecond switch between line current and battery power. Virtually all have built-in surge protection and many of the mid size and larger one also have line conditioners.

Bottom line? Instead of selecting a line conditioner with surge protection, which can cost up to $500 or more, get first-rate protection that includes surge and battery backup plus top quality line conditioning, for under $300 by purchasing an on-line UPS. For under $100 you can be protected from the most common surge and short-term power loss problems with a UPS with surge protection combo.

Whether it’s your dryer tripping a breaker or lighting striking your home, power surges are far too common. Keeping things safe and operating smoothly is the utmost priority, but how much damage can power surges do anyway? Should they be on your list of worries if keeping your TV safe is a priority?

A power surge can damage a TV. The damage can be minimal, such as a single HDMI port no longer working, or it’s possible that it could be completely fried and no longer able to operate. A surge protector is a simple device that will add a layer of protection to any devices connected to it.

The last thing you want is to be in a situation where a little preparation could have saved the day. While protectors are of course important, what causes a power surge anyway? How can you know that a surge is the source of your problems? To find out more about power surges and TVs, read on!

Look, you don’t have to be an electrician to understand that electricity can be dangerous. That’s not just for you either, it can be a real electronics killer if you don’t watch out. So what exactly is happening when you experience a power surge? How does this phenomenon spell disaster for TV?

Also known as transient voltage, power surges are quite simply an increase in voltage. Sometimes this increase is strong enough to damage and destroy the items you have attached to the circuit; which, sadly, includes your TV.

If you’re looking for an exact source, most power surges as caused by items inside the home. Here are some heavy-duty appliances you can usually point your finger at when power surges are a threat:

However, you may also experience an outside power surge. If this is the case, then mother nature is to blame. Things like random lighting strikes are usually the cause of power surges that come from outside. But what actually happens when you experience a power surge?

Well, time to put on your science cap. When an electrical current passes through a device and it happens to exceed the recommended operating range, electrical arcs can destroy the wiring component. Even a small surge can do damage, especially if it happens frequently.

Power surges can be bad news, as you can imagine. While you may not get full device failure, there are some other consequences of power surges that do damage over time rather than all at once. So how can you tell if your TV has experienced a power surge? What should you look out for?

Generally, if a device that was working properly doesn’t anymore, a power surge could be the culprit. If this happens, following a circuit breaker tripping or another electrical event, you can further reduce the possibilities of this happening.

Other than device failure, what else should you look out for? Here are some other signs that you may have experienced a power surge problem in your home:

Device components not working — Check the device’s lights, the clock, or really any other aspect of the TV to see if you can find any abnormalities. This could be a sign of a power surge.

Those are just a quick few things to keep in mind when trying to diagnose a power surge issue yourself. If you are worried or need a second opinion, contact your local electrician. They’ve got the experience you need not only to identify the issue but also to fix it if need be.

Some things are just out of our hands; power surges are one of them. While you can try your best to manage the risks from inside your home, like heavy appliances, you can’t control mother nature. So what should you do to protect your TV from sudden jumps in voltage?

Put quite simply, to protect against power surges, get a surge protector. It’s the only way you can prevent damage from all kinds of power surges, both inside and outside. Without one, you leave yourself open to damage down the road.

A surge protector is a simple device. They help divert voltage spikes safely through the ground, meaning they don’t reach your device but rather go straight toward the earth. The best part? You can get a decent surge protector for very cheap, like this model from Belkin (on Amazon).

However, a cheaper surge protector is not always the best option. Sometimes if your equipment is more expensive or sensitive, then it makes sense to purchase a higher-quality surge protector like the Panamax M8-EX (on Amazon). I’ve been using this model for many years now and never had any issues with it or my devices.

In a perfect world, you’d have surge protectors on every appliance. But that’s just not the case for most people. So what should you do if your TV isn’t working and a power surge seems to be the likely culprit?

The first thing you’ll want to try is performing a power drain. This will make sure that no more residual power is left in your TV and can solve many problems.

This is a great first move and can often be a remedy for even the most troublesome of TV issues. If it still doesn’t work, or your TV is on but acting weird, a factory reset might be the next best option.

Keep in mind that not all TVs will have the same reset process. If you can, use your owner’s manual. You’ll find more specific steps there on how to perform a full factory reset. If neither of these steps fixes your problem, it could be an issue with the power manager for the device. If this is the case, you may need to get external help from a TV repair expert.

When things go south, the first thing you might think of is your insurance. Does homeowner’s insurance typically cover power surges? Since they are so common, many people are asking this question.

In some cases, power surges are protected under homeowner’s insurance if you have protection for personal items. Not all policies will offer this coverage. Get in contact with your local agent for more information on your situation.

Personal Property Coverage is what helps you replace your belongings when they get destroyed by a covered peril. In most cases, a power surge is considered a covered peril. But, there are limits you’ll need to be aware of before calling in a claim.

In almost every situation, the homeowner is responsible for the damage caused by a power surge. Of course, if you have insurance, personal belongings might be covered, but that’s not always the case.

This is why getting proper protection is key to keeping things safe. Look, surge protectors are cheap and can save you thousands on needing to replace your TV outright. Since they usually offer more than one outlet for use, even a single surge protector can help with a whole load of electronics, including your TV. So get some before it’s too late!

In the United States, National Electric Code article 210-19 FPN No. 4. suggests a 5% maximum combined voltage drop on the feeder and branch circuits to the furthest outlet "will provide reasonable efficiency of operation." The Canadian electrical code also requires no more than a 5% drop between the meter and outlet. Applying the 5% tolerance gives a nominal 120V range of 114V to 126V.

Yes, a power conditioner will stabilize the voltage from a generator. However, it will not convert the modified sine wave produced by some generators to pure sine wave, making those generators unsuitable for sensitive electronics.

Yes, but not with the printer itself. Printers and copiers use a hot roller called a fuser unit to bind ink toner to the paper as it passes through the printer. Periodically, the printer needs to reheat the fuser unit to the required temperature, and this requires a lot of electricity. To prevent a power sag (under-voltage) from impacting computers and other sensitive equipment on the same circuit as the printer, use a power conditioner with Automatic Voltage Regulation (AVR).

Connecting a printer to a line conditioner may prevent the printer from getting the voltage it needs. A better approach would be to have a qualified electrician check the capacity of the existing line and add a separate circuit for the printer if necessary.

A power or voltage spike is a sudden increase in voltage, ranging from a few hundred volts to tens of thousands and lasting between 1 and 30 microseconds. A power surge is like a spike but lasts longer. Voltage fluctuations are normal and do not typically harm equipment connected to an outlet. Over- or under-voltages occur when the voltage reaching powered devices falls out of the normal service range.

As a power conditioner corrects high or low input voltage, it will make a gentle clicking sound. The frequency of the clicking will depend on the quality of the utility power in your area. The clicking is normal, and no action is required on your part.

A power conditioner can potentially improve sound quality by providing a cleaner and more stable power supply to audio equipment. Power fluctuations and electrical noise can interfere with the performance of audio equipment, leading to degradation in sound quality. By conditioning the power, a power conditioner can reduce the amount of electrical noise and provide a stable voltage, which can result in improved sound quality.

However, it is important to note that the effect of a power conditioner on sound quality can vary depending on the equipment and the specific electrical problems being addressed. In some cases, the improvement in sound quality may be minimal or not noticeable, while in other cases it can be significant.

A power conditioner is an electrical device that improves the quality of the power supplied to an electrical load by regulating voltage, reducing noise, and filtering out electrical disturbances. The goal of a power conditioner is to protect sensitive electronic equipment from damage caused by power fluctuations and electrical noise.

A surge protector, on the other hand, is specifically designed to protect electronic equipment from damage caused by power surges and spikes. It accomplishes this by diverting excess voltage away from connected equipment.

Some power conditioners include surge protection as part of their functionality, effectively combining the two functions into a single device. In these cases, the power conditioner can improve the quality of the power supply while also providing protection against power surges and spikes.

If improved sound quality is your primary goal, an isolation transformer is the best choice. Microphones, instruments and amplifiers can pick up unwanted hums or buzzes if they are plugged into the same circuit as items such as fluorescent lights, air conditioners and dimmer switches. If your band is playing in a bar, even the bartender"s blender is a potential source of interference!

An isolation transformer uses two coils of copper wire, wound so that the primary coil connected to incoming AC power induces a current in the secondary coil powering connected devices. Since there is no direct connection between the coils, musical instruments and recording equipment attached to the secondary coil are isolated from audio frequency noise on the power line.

A surge protector designed for a standard AC power outlet requires a functional ground connection in order to work properly. The surge protector diverts excess voltage to the ground wire, preventing it from reaching connected equipment.

This is not recommended because the extension cord may not be robust enough to carry the current required by the surge protector safely. In addition, long cable runs increase electrical resistance, which can cause overheating and fire hazards. Instead, choose a surge protector with a long input cord designed to carry the required current safely, such as one of these models.

This is not recommended because long cable runs can cause overheating and fire hazards. Instead, choose a surge protector with a long input cord designed to carry the required current safely, such as one of these models.

This is not recommended because long cable runs can cause overheating and fire hazards. Increasing the number of outlets also makes overloads more likely. Instead, choose a surge protector with a long input cord designed to carry the required current safely, such as one of these models.

Tripping breakers are usually caused by current (amperage) overloads. That means too much equipment is plugged into the surge protector or the outlet. Unplugging some equipment or replacing it with equipment that requires less power (wattage) may prevent the breaker from tripping. Other possible causes include a compromised breaker in the electrical panel that requires replacement or an appliance that draws too much amperage on startup, such as a heavy-duty power tool. High-amperage devices may require a 20 amp outlet instead of the typical 15 amp outlet. A 20 amp outlet can be combined with a 20 amp surge protector, such as one of these models.

This may indicate the surge protector is damaged or faulty. You should unplug the surge protector and replace it. If you still notice a problem, consult an electrician.

A surge protector should be labeled as a surge protective device or similar on its nameplate. In addition, the manufacturer"s documentation will identify it as a surge protector and provide specifications for the level of surge protection provided, including the joule rating and voltage let-through rating.

A surge protector is designed to protect against very short-term and high-intensity voltage spikes and surges. A power conditioner is designed to protect against longer-term and lower-intensity voltage sags (brownouts) and swells (overvoltages). The automatic voltage regulation (AVR) feature of line-interactive UPS systems performs the same function as a power conditioner. Power conditioners and UPS systems typically include built-in surge protection in addition to their voltage regulation features.

A residual-current device, such as a GFCI outlet, monitors for leakage current to ground and interrupts the circuit when it detects leakage current. Interrupting or breaking the circuit prevents equipment damage and the potential for dangerous electric shocks. Rather than protecting against excessive voltages like a surge protector, it protects against current (amperage) leaking to the wrong place in the circuit due to a wiring fault or other problem.

The Integrity Pro UPS Series is designed from the ground up to incorporate itself flawlessly and reliably into any environment. It is engineered to provide constant, uninterrupted power for sophisticated computer loads in medical, retail, diagnostic, and office I.T. settings. Ensuring your electronic systems are fully protected with our industry-leading power quality technology.

"""Got a 24” smart tv D24f-F1 model. Got a blackscreen with blurry vertical lines. the only part of the screen that is still visible is the very top of the screen. If i leave it on for several hours sometimes it comes back to focus but i have been curently waiting an hour an 45 minutes for it to come back and still nothing. Any suggestions? I have tried a power cycle with no results and was told to factory reset but cant see the menu :(

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