Question about Sony 42XBR900 Television

1 Answer

Possessed periodically, the tv volume will automatically either go all the way up, or all the way down. during this time, the tv cannot be controlled with the remote or manually off the buttons on the tv. the power switch doesnt work either when this happens. this will go on for several days, then just like it started, it'll go back to being a normal tv again.

Posted by on

  • techman2000 Jan 13, 2009

    I have the same problem with a Sony KV-27FS100. It just started happening after 6 years. I can be watching the TV for 5 mins or immediately and the volume will go all the way up. The remote is not functional. The only two buttons I can use are the volume and power buttons on the TV panel.

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Sony Master
  • 75,178 Answers

Main system control memory IC fault. This is a very small IC; have 8 solder terminals, and can be located very near to the main system control-chroma IC. Check and replace it. Be sure to replace it with the same number printed on it; in all respect. Otherwise, it won't go. http://electronicshelponline.blogspot.com/ Before replacing it, try a reset to this set, and then check.
There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; check the site linked here.

Posted on Aug 21, 2017

Ad

6 Suggested Answers

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.
Good luck!

Posted on Jan 02, 2017

Ad
cezirkle
  • 27 Answers

SOURCE: sony tv codes

Greetings...

What is the number for the TW remote you are using? 8400, U62R, 2000? Which TW cable service in NY... NYC, NY & NJ, Albany, etc...?

Ed

Posted on Apr 03, 2008

  • 84 Answers

SOURCE: Sony Grand wega KDF-E50A10

unfortunately the B Box assembly needs to be changed in these and price of the part alone is more than half the cost of a new tv

Posted on Apr 19, 2008

mistersony
  • 320 Answers

SOURCE: Periodic tv screen blackouts

The problem is your cable box. I know you said you replaced it, but I work on TV's everyday and, sorry to say this but cable box HDMI outputs have serious issues, like no or intermittent sound and video. I have seen customers exchange their cable boxes 5 and 6 times and still have the problem. Your best bet is to use the component outputs of your cable box, visually you will not see a picture difference between component and HDMI when using a cable box. Your other solution is to get satellite; I have NEVER seen an HDMI issue with a satellite box

Posted on Nov 26, 2008

  • 668 Answers

SOURCE: volume control not working

Most of the time one of the switches under the control buttons are bad on the control panel of the TV.

Posted on Jul 05, 2009

  • 1 Answer

SOURCE: 55" TV keeps shutting off automatically

Green light flashes 5 and then red light flashes 6

Posted on Sep 28, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

What is causing the volume to to change on its own?


This is a known issue for this model, and you need to ask for a service intervention via your dealer or Philips (http://www.support.philips.com/support/catalog_selector.jsp) to repair it.

Nov 22, 2015 | Philips Televison & Video

1 Answer

Tv volume control


the volume controler board on the tv could be at fault. the button could be damaged and connecting the circuit making the volume go up. failing that there is a cross feed some were on the feed were the wire from the control buttons go to the main board, dust a damp can cause this. or even just dust.

Jun 21, 2017 | Coby Audio Players & Recorders

1 Answer

Volume on the WD 57733 turns up to full blast by itself. Cannot turn on the mute button using the remote.


volume button on your remote is stuck in the increase position. try another remote if possible or remove the remote batteries so you can atleast use the TV manually

Dec 23, 2013 | Mitsubishi WD-57733 57" HDTV

2 Answers

Volume bar stands at 200 every time i start my Samsung LCD


set the volume down extremely low power the tv down by plugging out and put on again should be then at set volume,the tv's now days have memory so it should start up at volume preset

Dec 21, 2013 | Samsung LN-S2651D 26 in. LCD Television

1 Answer

The volume of my tv is automatically going down


what type/make of tv is this - check if the front keypad vol- on the TV is not stuck on

Oct 18, 2009 | Televison & Video

3 Answers

My tv shuts off after only two minutes


try using a master reset to fix this.
Sometimes after being used for awhile electronics tend to malfunction.
press and hold these buttons in this order....
power / volume up / channel down.
The tv should shut off after doing this.
Turn it back on manually.
This will reset the TVs internal memory chip.
I dont guarentee this as a permanent fix....but it worked for me.Good luck

Sep 19, 2009 | Sansui DTV2760 27" TV

1 Answer

Sony TV shuts off automatically


1.Check first if the shutdown of your tv follows a certain period of time. Example after using it within 12 hours it automatically shut down. If so the the matter is only on settings of your tv.
2.But if your tv shut down at an irregular time the problem is in your board. In this case if your tv still work but still shutting down automatically its better not to use it so that their will be broader damage.
3.The most common defect on this case is loss contact of components due heat and mechanical undergone during the usage of the tv. If you know how to resolder board, try to resolder the components specially those who are showing loss contact. You can recognize it because a good solder one has shinny and no round like on the soldered surface.Try also to resolder important parts such as IC's and transistors. note : a good resolder needs to be done in order to avoid problems and damage.
4.Another possible cause is the tack switch for channels,menu,power and etc. You can remedy it by spraying it a contact cleaner.
5.If the problem still going even after the procedure its better to bring it on reliable and trusted service center.

Jul 11, 2009 | Sony Televison & Video

1 Answer

Low volume on playback


The volume control on the TV does not affect the recording. However, if you were recording from a set top box, and you turned the volume down on the box and not the TV, then this would cause the problem you describe.

If this is the case, then try to keep the STB volume at maximum and only use the TV volume control.

Also, some DVD players and VCRs have a lower output than the standard TV tuner, so an increase in volume is usually needed.

You might want to try some test recordings to see what happens.

May 08, 2008 | Sansui VRDVD5000 DVD Recorder/VCR

Not finding what you are looking for?
Sony 42XBR900 Television Logo

Related Topics:

33 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75178 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1689 Answers

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

Answer questions

Manuals & User Guides

Loading...