TV PROBLEM I"ve encountered problem with my TV MODEL #: 21PT2324/71, everytime I ON the POWER Switch, the sound is higher. I tried to lower the volume still the audio is higher althogh the volume is in the lower mode...

Yes, buy a remote control :>) They are readily available, no need to program and can be obtained from Amazon, eBay and specialty remote retailers like www.remotes.com

Google

Seiki (model) replacement remote

https://www.google.com/search?q=seiki+tv+replacement+remote

The most likely reason for your issue is a dirty button and the contacts. Switch Contact Cleaner may fix it.
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Maybe try headphones settings instead of internal speakers and consider the sound bar as headphones. Some TV's may limit output to headphones as well but start there.
Assuming you have a Samsung TV, look at your TV settings.
You may have the sound level on auto.
Next check to see if you are set for the external speakers, you might have to look in additional settings to find this.
Should you have another brand of TV the concept is the same.
so check settings for TV for external output.

Speaker requirements are likely to be 8 ohm, most modern hi-fi speakers are. A few low-fi systems have used special high impedance speakers and the old hi-fi standard for valve amplifiers was 15 ohm and 3 ohm or lower has been used in televisions a lot.

4 ohm speakers are commonly used where a higher power output is desired at the cost of some quality of sound reproduction but depending on how the sound is listened to can soon overload some amplifiers primarily designed for 8 ohm as it will try and deliver more power into the lower impedance speakers and perhaps exceed the rating.

8 ohms is a safer choice. The lower the wattage rating of the speakers the more efficiently they tend to be able to reproduce sound at low volume levels so for background music in a small domestic environment the average power requirement will be in the order of half a watt so even with a high powered amplifier the volume would rarely be turned up above 1 - 2 on the typical scale of 10 and ten watt speakers would be more than adequate. It is unfortunate that it is almost impossible to obtain quality speakers rated at such an unfashionably low power rating.

With the stiffer cones of a higher power rated speakers the volume has to be turned higher before the speakers become efficient and listening at low levels can be difficult. In a domestic environment a 50 watt rating is perhaps the best compromise as if there are neighbours to consider a ten watt average power output will be sufficient even if the amplifier is capable of higher powers. Just don't turn the volume up more than necessary.

The greater the power rating the more power will be required for efficient reproduction. For electrical and mechanical safety of the speakers the rating should exceed the maximum output of the amplifier but listening at low levels with quality of sound can become virtually impossible.

It is all a matter of taste and environment.

Replace the speakers.

This sounds like a common problem on these TVs. Try a factory reset:

1. Press and hold "Menu" and "Channel+" on the TV. (do not use the remote)
2. Using the other hand, press the Power button.
3. A small screen should appear in the top left part of the screen.
4. Using the remote, select "Memory Recall" and Enter.
5. Power off and reboot the TV and Computer.
6. Run channel auto-scan to regain the picture.

Check the sound settings to see of there is a dynamic or auto volume adjustment setting.

Hello... Your TV speakers are turned off. If you don't have a sound bar or a surround sound system, go into the TV menu, audio, speaker settings and turn them on. If you have a sound bar or surround sound system, use the remote for that system to adjust the volume. I hope this helps!

Without knowing the model number it's hard to say. However, it's not uncommon to have a defective switch on the actual TV itself. Try pressing the switches on the TV and make sure that they 'snap' in and back out when they are pressed.

It is a known problem with this model. The source of the buzz is the Dsp power supply. On the DSP board itself there is a 2200my\f/16v capacitor that is defective . Usually the capacitor will turn brown and swells due to overheating. Replace it with a higher temp rating capacitor with the same capacitance and voltage specifications.

Hi

What do you mean the sound is?