A Slow Warm Up on a Panasonic TV

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Some forms of Panasonic TVs will take time to turn on and warm up normally, so a slow-warming television isn't necessarily a problem. The key to knowing whether your television has a mechanical problem is a sudden change in behavior and other symptoms that may go along with the slow warming trend. Doing some basic troubleshooting will help to determine if your Panasonic TV needs service.

What Is Normal

  • Normal warm-up time for any style of healthy, newer Panasonic TV should be just a few seconds. Slower starts may indicate a developing problem with the electronics. Not all problems that occur with a TV are catastrophic, however. As the set ages, it may start to slow down. Older models of Panasonic TVs may have vacuum tubes that take longer to warm as well. A slow-starting set can mean an inverter is going out or capacitors are starting to leak, especially if you have had the TV for years. What to look for is a TV that takes several minutes to show a picture or one that all of a sudden is taking longer to warm up.

Troubleshooting

  • If you find the TV is taking longer and longer to warm, you can try some basic troubleshooting to see if there's a mechanical reason for the delay. A sluggish TV may not be getting enough power. The first thing to check is the outlet supplying electricity to the TV. The fastest way to verify the outlet is functioning is to plug the TV into another outlet. If the new outlet offers a significant improvement, you know the problem is not the set. Examine the power cord for physical damage. A cord that has a nick or tear may not be providing a strong connection and should be replaced.

Leaking Capacitors

  • Capacitors are components on some forms of Panasonic TVs, specifically liquid crystal displays, and they're often the source of problems. Capacitors store energy. When they become faulty, the tops form tent shapes and eventually they leak. When capacitors leak, the TV may begin to function poorly. Since capacitors have to do with the power supply, a slow start is a possible symptom. To check the capacitors, unplug the set and let it sit for a minute. Remove the back of the unit and look at the circuit board. Most TVs you can lay face down on a secure surface, like a floor, to remove the back. Avoid laying down projection or plasma TVs. Take out all the screws around the edge of the back panel and any in the center. Then pull the back panel off carefully. Capacitors look like batteries soldered to the board. If you see the pointed tops or tenting on any capacitor, the TV needs service.

Repair

  • Ultimately, you know your Panasonic TV better than anyone else. If you think it's taking too long to warm, it may be worth a call to a service center or a trip to the repair shop. TVs are considerable investments. Proper maintenance may be the way to avoid having to replace the unit. If you notice other symptoms of along with the slow warm-up, such as a flicking screen or overheating, take your TV in for service. Extended warm-ups are abnormal for new televisions. If your TV is still under warranty or if you have an extended service contract, contact Panasonic before doing any repairs on the set.

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