Question about Philips Magnavox 51MP392H Rear Projection Television

1 Answer

TV MAKING A CHERPING OR CRICKET SOUND AFTER IT IS TURNED ON

I have a Magnavox 51mp392h Rear Projection Television That I got for FREE from a friend at work. It had a convergence problem with it so I relaced The STK392-120 IC chips with theSTK392-150 IC chips like different people say you should. I also replaced all The 12 6.8@WF12 resistors with 12 6.8 OHM-1W metal oxide resistors. And every thing went very smooth. Turned on TV and and used the remote to adjust the convergece and every looked good as new.So then I closed all the blinds in the room so I could go back into the convergace screen to get it perfect and when I got to the red and used the remote and brought it douwn just a hair. The tv screen went blank and no sound, All you can hear is a cherping or cricket sound comming from inside the TV. Went back and checked all connection and still no luck. Is it because I used the STK392-150 Or is it because I used metal oxide resistors instead of metal film resistors. Like I said before the TV was free so I thought I would tinker around with it a little. Any help woud be great ! !

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 231 Answers

Two main common failures for these sets is the convergence amps and the flyback transformer (which is rather expensive). Both can make the set "chirp".

Chirping means the power supply is being loaded down by a short in most cases, likely a bad convergance IC
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

More solutions => http://www.fixya.com/tags/chirping_noise

Posted on Jan 01, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Picture has red and blue shadow images


thats a fairly easy fix. You need the DPTV305-DPTV345 convergence repair kit available at the following link.
http://servicemanuals.vstore.ca/
The kit contains the parts and the CD with instructions

Sep 29, 2009 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Magnavox 54" Projection screen TV


Replace your STKs 392-110s with 180s if 020s go with 040s

Oct 27, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Phillips Magnavox 60 inch tv


not showing a picture are making a sound.

Jul 05, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Magnavox 51mp392h rear projection tv


The horizontal *forgot the name, want to say synchronizer, but i know thats not it* is going bad. Will cost about $400 to fix. Time to get a new TV.

Aug 29, 2007 | Philips Magnavox 51MP392H Rear Projection...

Not finding what you are looking for?
Philips Magnavox 51MP392H Rear Projection Television Logo

205 people viewed this question

Ask a Question

Usually answered in minutes!

Top Philips Televison & Video Experts

The Knight
The Knight

Level 3 Expert

72640 Answers

matt martin
matt martin

Level 3 Expert

1207 Answers

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Are you a Philips Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...