Question about Toshiba 50HX81 50" Rear Projection Television

1 Answer

Horrible picture after moving

After moving my tv across town with a few bumps here and there the picture quality is bad to say the least.

When I plug it it w/o any type of inout the screen has a black background with 2" wide diagonal lines going across. If I use some sort of input, playstation or dvd, the colors are horrible and the pictureis very shaky and it seems as thought it is shifting up and down. After a while 20-40 minutes the picture seems to stablize to where you can actully get a sense of the image. It will still shake and give some distortion at frequent random times and the colr seems to be off to almost like a very old tv.

Any ideas? Maybe I can go in and adjust the convergence or look for disconnects? Replace some type of board? Use a multimeter to determine if there is something wrong?

Posted by on

  • baddad Jan 28, 2008

    After moving my tv across town with a few bumps here and there the picture quality is bad to say the least.

    When I plug it it w/o any type of inout the screen has a black background with 2" wide diagonal lines going across. If I use some sort of input, playstation or dvd, the colors are horrible and the pictureis very shaky and it seems as thought it is shifting up and down. After a while 20-40 minutes the picture seems to stablize to where you can actully get a sense of the image. It will still shake and give some distortion at frequent random times and the colr seems to be off to almost like a very old tv.

  • nays Feb 27, 2008

    My picture on Tv is shaky and after awhile the picture seems to get better. You can still tell it shakes.

×

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 77 Answers

Sounds like your convergence chip has gone bad.

Posted on Jan 30, 2008

Ad

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.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

What would effect the picture quality the color wheel or lamp?


The color wheel is your suspect.......usually whines a bit
when bad. In a quiet room, you can hear it when the TV is powered on or off. It spins at 9,000 rpm ( wears out the bearing).
The lamp will not exhibit those symptoms....

Apr 26, 2014 | Televison & Video

1 Answer

White lines across tv screen


Without seeing the lines I can't be sure what your set has wrong, but here are a some possibilities:

If the lines are lines are confined to the top inch or two of the screen and the picture looks otherwise normal, the trouble is bad capacitors in the vertical output circuit. Fixable by replacing the bad parts.

If diagonal lines are across the entire face of the picture tube and the picture looks washed out, the trouble is often a bad capacitor on the 200-volt line to the picture tube. This may be on the main circuit board near the horizontal output transformer, or on the small circuit board plugged onto the end of the picture tube. Again, replacing the bad capacitor can fix this.

If your TV is actually an RCA, someone may have bumped a rear-panel adjustment. On the back of the TV near the bottom right are two small knobs. RCA left these adjustments exposed inside of putting them inside the set like other manufacturers. These sometimes get bumped if someone was behind the set cleaning, or if a pet got back there and hit them with a tail. The top knob adjusts focus, and the bottom knob adjusts something called G2 or screen voltage. If this gets turned up too high it can cause the faded picture and diagonal white lines. Turn the adjustment down until a black screen looks black instead of gray.

A bad picture tube or horizontal output transformer can also cause lines through the picture. If this is the case with your set, it's time for a new TV. The transformer is relatively inexpensive but labor costs aren't, and the repair bill may exceed $200. If the tube is bad, there's no point even considering repair. The tube cost alone exceeds the cost of new TV.

Hopefully your lines are easy and cheap to fix. Good luck, and thanks for using Fixya!

Jul 22, 2011 | RCA F35673MB 35" TV

1 Answer

Moved tv across town and tv now has a blueish tint on left side of tv. bulb was changed and problem still there?


This is a issue with your optical eng. Sony knows that they are bad, call sony and they should atleast comp you the part

Dec 17, 2010 | Sony KDS-R60XBR1 60" Projection HDTV

1 Answer

There is almost no difference in picture clarity ON or OFF a HD channel. TV was perfect before we moved in downstairs....it was BUMPED a few times going down the stairs. Is it "out-of-focus"...


I would just about put money on it saying it is your convergence board you can get it from the part store in any town for 50 $ (give or take) I had the same problem and that was the fix.

Hope this helps.

Dec 14, 2010 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

Xbox 360 game mode


Make sure your xbox is set to plain TV instead of HDTV. There is a switch on the cord that plugs directly into the back of the xbox.

Nov 08, 2008 | Symphonic ST420FF 20" TV

1 Answer

TV won't turn on


When I try to turn the tv on, the green light flashes and eventually goes back to red. A very faint picture came across the tv a few times but didn't stay. The tv is only 3.5 years old.

Jul 10, 2008 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Brand New and already broken


There is a short on one of the boards. The power supply may have also been damaged. You should take the set back to the dealer for an exchange.

I would sugget to buy a quality brand name if you want high reliability.

Jerry G.

Jun 20, 2008 | Maxent MX-42HPM20 42 in. Plasma HDTV

1 Answer

NO PICTURE, BUT TV HAS SOLID, SLENDER,HORIZONTIAL LINE ACROSS SCREEN


Your TV has a vertical deflection failure. There are parts that have failed. This will require time to troublshoot and service.

The make you are mentioning is not a known quality brand name.

You should get an estimate before deciding to service the set. The service cost may be expensive if there is no warranty on the set.

If you decide for a new set, I would suggest staying with a quality brand name and get a service contract.

Jerry G.

Apr 14, 2008 | Dynex 20" Digital TV

Not finding what you are looking for?
Toshiba 50HX81 50" Rear Projection Television Logo

65 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75178 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Jaime Hernandez

Level 3 Expert

2335 Answers

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

Answer questions

Manuals & User Guides

Loading...