Question about Zenith Z46Z83D 46" Rear Projection Television

Screeching heard on powerup

Just been donated this RPTV not working obviously, no picture on powerup but definite high pitched screech coming from area next to internal power supply, just checking this is normal startup sounds at this stage, issue appears to be fuse related, though fuse passes multimeter testing power beyond current installed fuse fails multimeter test. possibly last owner installed incorrect fuse, any suggestions or possibility of schematic or service/repair manual or even a link that doesnt want me to pay for this info would be great for this model. Even better would be the ten step cheat sheet for diagnosing power failure would be fine at this stage thanks in advance.

Anonymous May 17, 2007

No fan installed on this model, any suggestions or precautions for testing the high voltage on this system

1 Answer

Anonymous

Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Genius:

An expert who has answered 1,000 questions.
Master
2,985 Answers

The screech any chance there is a fan nearby that could do with a little lubrication?

Posted on May 17, 2007

Add Your Answer

Upload

Upload an image from your computer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

Loading...

Include an image. It's worth a thousand words.

prev next

Related Questions:

1 Answer

I drive a 2003 Nissan Sentra gxe and there's some very loud high pitched screeching when I turn the car on. It's lasting longer and longer and it will start sometimes when I'm driving when the heater is...

I would just change the drive belts. They're inexpensive and definitely worth it.

Nov 24, 2014 | Cars & Trucks

1 Answer

High pitch noise screeching sound not

rear wheel bearing

Feb 22, 2014 | BMW X3 Series Cars & Trucks

1 Answer

My dell d620 makes a constant high pitch screeching noise how do i make it stop

sounds like fan or possibly hard drive is about to fail

Jan 02, 2014 | Dell Computers & Internet

1 Answer

Car made high pitch squealing noise before it not being able to turn over

I wonder if you have a fan belt that is screeching? They get glazed over and eventually wear out and make a high whine and screeching noise. This might...be what it is

Feb 05, 2013 | 2005 Honda Civic

1 Answer

When I went to turn on my 20 month old 46in LCD LN46A500 it made the loudest high pitch screeching sound that no one would like to hear and the picture was black. The remote buttons and the TV control...

The power supply board have fail badly,all that high pitch screeching sound,it came from those high voltages gaps from those tranformers,that giving ur tv high voltages.The power supply board,that the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Oct 25, 2010 | Samsung LN46A500 46 in. TV

1 Answer

What could be causing a high pitched screeching sound when I turn on my single handle shower?

If you haven't turned the main back on, this could cause the sound.
Re supply the water to the lines.

May 10, 2010 | Moen 3175 Legend One Handle Shower Faucet...

2 Answers

Screeching noise

rear drum bearing needs to be replaced

Sep 25, 2009 | Maytag Dryers

2 Answers

Screeching noise coming from driver side tire

The high pitch sound may come from the brake pads as metal parts hit the disc to signal the owner that it needs change. The metal parts gets exposed when the pads have worn out. The brake also has a hub to cover the disc. See if the metal plate is hitting it but this issue would appear when the wheels are in motion. Check if it is the belts, have the tension checked out. Other than that the bearings are the other items on your wheel that could cause a high pitched sound when you car is in motion.

Aug 09, 2009 | 2005 Dodge Neon

1 Answer

Constant extremely high-pitched screeching noise -- brand new unit.

Do you still have warranty to cover this problem?

Jun 06, 2008 | Haier hwr10xc6 Air Conditioner

3 Answers

High Pitched Sound

I am to believe that your static sensor on the playing head is touching the the head and it sould not. just bend it up "slightly" and the noise should disappear

Dec 14, 2006 | JVC HR-S5902U / HR-S5912U VHS/S-VHS...