Sound quality has diminished after power outage

Just goto settings, sounds, increase volume if physical volume buttons will not work. Goto store download volume app and just increase it.

Reset The Device
With the phone turned off, press Power key to turn ON the phone, then immediately press and hold Volume Down key.

• An ! mark will appear on the display.
• Press the following keys in this order:
  
  1. Volume Up
  2. Volume Down
  3. Power Key
  4. Volume Down

It sounds that the main system control memory IC data has been currupted.

replace player sounds like a bad power supply or ic chip

Sounds like you had a high voltage power surge just before going out
Are u using a high grade reference center or surge stage 2 or 3?

I have a Korg C-15s and also experiencing loud crackling sounds when I turn it on. The problems seems to be either the sliding volume control or the amplifier itself. Honestly though, I believe the issue is the volume control. I opened my piano to get a closer look and attempted to clean the contacts on the volume. Unfortunately after cleaning the contacts, the crackling sounds became somewhat worse. After I turn the piano on, the volume control is generally rendered useless......volume set to low volume and the noise is quite loud and other times the volume control is set high and get very low volume crackling noise. No real consistency. The noise does diminish after a few minutes but so does the piano sounds to an inaudible level. There were a couple of instances where I turned it on and surprising enough, no no noise and perfect sound. For these reasons I believe the issue is within the volume control and not so much the amplifier. I have an electronics background and noticed that the volume control is very unique in design and is not something that can be substituted with another volume control from other sources.

My recommendation is to check the sound quality of the audio from the RCA L/R audio outs on rear of the piano by connecting to a stereo receiver. If it sounds fine you're in luck. If the crackling sound does not diminish after a few minutes like mine does, I would suggest disconnecting the internal speakers and using the audio out only. You can connect a pair of studio monitors or high quality computer speakers, preferably with a small subwoofer to deliver the full audio range and deeper tone of a real piano. I'm currently using a basic pair of Logitech computer speakers and is quite acceptable until I can afford a high quality set of monitors or relocate my piano closer to my high quality Yamaha receiver.

I hope this info helps a bit.

Goto

start - control panel - sounds and audio devices.

once there adjust the qualities you need.

alternativley, goto your toolbar at bottom right of screen and right click on the speaker, this will give you access to the sound porperties.

This TV has a Power Standby feature (pg. 40 of your manual) which allows you to more quickly turn ON the TV. When power is lost and then restored, your TV will display the HP logo screen while it boots the digital circuits. After it is finished, (unless it was previously turned on) it should appear to be OFF. This is normal operation. If you like, you can change this setting to LOW POWER. At this setting, each time you turn on the TV, you will see the HP Logo screen and picture/sound will appear after 20 seconds. Again, take a look at pg. 40 of your owners manual for more information.

if the sound disappears when your turning then its the wheel bearings. if not then im not sure what it is

Welcome to FIXYA

i havea acer laptop to and this works sometimes right click on the spearker icon botom right in task bar and then goto sound and then playback you should see your speakers or your sound device right click it then goto properties and goto advance tab and make sure the Hz is right and make sure the volume is turned up on it


hope this helps you out have a nice day :)