Question about Toshiba 27A44 27" TV

1 Answer

Toshiba 27AF44 horizontal deflection problem

I have a Toshiba 27AF44 television in which the horizontal size has shrunk by about 2 inches on both the left and right sides of the screen. The TV works fine otherize. There do not seem to be any horizontal sweep (size) adjustments externally like with old TV's or computer monitors. How is this adjustment made (I am not affraid to do the work myself if I know which adjustments to make)?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Toshiba Master
  • 1,635 Answers

This type of thing is not an adjustment.

If you have any type of device that has been working properly and then it shows a change of performance, the last thing to touch is an adjustment. What you have to do is find the source of the problem and change whatever parts that are causing the failure or performance change.

In the case of your TV set, there are some components in the horizontal output stage that have changed in their specifications. This happens over time with use, age, and heat.

An experienced TV service tech can go in to the circuit areas using the proper instrumentation and troubleshoot to determine the failed parts. Then he can change them for you.

It would be best to find a service center that is experienced with, or better who is authorized to service them manufacture type of TV you have. The will have access to the service manuals and the source for the parts.

This type of problem is common caused by failing capacitors, and or the fly-back assembly, and on rare occasions the deflection yoke having some type of failure. I have also seen fault conditions in the main power supply causing this type of fault.

When you give your set out for service, it would be best to ask for an estimate. Depending on the nature of the failure, the cost can be on the expensive side.

Personally, I would be seriously considering to get an LCD HDTV the way things are going now rather than putting in a few hundred dollars to service the TV that you have now.

The average cost for the type of fault you have can run in the area of about $140 to about $280 depending on the type of failures. This is if the parts are still available.

Jerry G.

Posted on Jul 12, 2008

1 Suggested Answer

  • 2 Answers

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

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.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Is the toshiba 27AF44 27

It is an analogue one. To get its specifications, click here.

Oct 12, 2012 | Toshiba 27AF44 27" TV

1 Answer

No horizontal and vertical deflection available:- audio OK

Check its horizontal output stage circuit. Replace damaged component/s. Vertical output stage gets its working voltage from the horizontal output transformer. If you want to get vertical deflection, this transformer, otherwise known as {LOT] should work to produce the supply voltage to vertical output stage.

Oct 12, 2012 | Panasonic CT-2789VYD 27 inch TV

1 Answer

No vertical deflection-need schematic

follow the 2 sets of wires off the yoke. one goes to the horizontal sweep section and the other goes to the vertical. the drive ic with the metal tab is blown.that is what drives the vertical deflection. there is a few capacitors there. 1mf at 160v and .47 at 160 and 2.2mf at 50v on most sylvania sets . if the plastic on the top of the capacitor is shrunk,it is getting hot and is no good.that can cause a loss of sweep or foldover.99% of the time it is the vertical output ic that is gone.

Oct 28, 2010 | Sylvania Televison & Video

1 Answer

Picture shrunk to one horizontal line

Vertical fault. Check vertical deflection components. Transitor,IC, capacitor etc.

Check all power DC +supply points in TV.

Mar 31, 2010 | Televison & Video

1 Answer

Hi~Our toshiba 27af44 tv has white horizontal lines across the top 6" of the screen. It's been a constant problem only on this tv, not on our other one. The tv is almost 5 years old. Is it worth repairing...

you have some capacitors in the verticle circuit that are failing they would require replacement to correct this problem est 125 or so to repair
and probably still a worth while fix
but with the price wars for Holidays upon us you you may want to look and see what you can get with just a bit more money
i hopw this has helped

Nov 18, 2009 | Toshiba 27AF44 27" TV

1 Answer

My ilo tv picture is 1 1/2 inches. How can I fix this??

its a vertical problem could be bad cap or possible vertical i.c. okay take to tv shop is their still a warrany on this set sounds pretty new shad

May 14, 2009 | iLO IWT3206 TV

1 Answer

Toshiba 36a43 no picture

reset the settings using the user manual then the problem will be solved

May 13, 2008 | Toshiba 36A43 36" TV

1 Answer

Toshiba TV CX2789K Horizontal Line

Failure in the vertical deflection amplifier section. This is usualy from failed components, and sometimes cold solder connections. Most of the time, I found bad capacitors, and sometimes the output IC or transistors (depending on the model type) that have failed.

Take the set to a service center for an estimate. You may find it more feasible to buy a new set depending on the parts that failed and the time involved to do the work.

Jerry G.

Apr 14, 2008 | Televison & Video

2 Answers

Picture shrinking

HI: Well that is a good indication you have a intermittent connection in the circuit board. Its time to take it to a repair shop. He will re-solder the poor connections. You should not need parts. Good Luck.

Mar 08, 2008 | Televison & Video

Not finding what you are looking for?
Toshiba 27A44 27" TV Logo

209 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Televison & Video Experts

The Knight
The Knight

Level 3 Expert

69708 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

matt martin
matt martin

Level 3 Expert

1198 Answers

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

Answer questions

Manuals & User Guides