Question about Toshiba 61H70 61" Rear Projection Television

1 Answer

Screen seems to flip

Powers up,can see a picture (does not flip) looks like pin cushion,can hear sound,but looks like part of screen does the old style horizontal flipping ,then after being on for a few minutes screen goes black and power light blinks. have done hard reset didnt help,also convergence out of line also.tried to adjust convergence with remote doesnt help.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 337 Answers
Re: screen seems to flip

All the symptoms in your tv point to a convergence problem,the unit has 3 amplifiers one for each color,this amplifier IC's need to be replaced and then realign the colors,sometimes just by replacing the Ic's you are able to realign the color with the remote but sometimes they need to be realign from the service menu. You can identify the IC's because they are mounted in heatsinks and by its marking,in the front they have STK--- ---,6 numbers after the letters,their size is about 2.5 " long and 1.5" wide with a row of pins solder to the main board.If you are familiar with tv service this information will help but if you are not too familiar be safe and call for assistance from a servicer.

Posted on Oct 12, 2006

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Picture is black. sound went out a few weeks ago and now all that seems to work is the red power lamp turns on and I hear a click but that's all. I am not concerned about the picture since it is c

The click is a power relay on the main board and if the red light is on I would suggest looking inside to see if it has more than one relay--follow the power cord into the set----some of these sets have one relay but others have up to 3.

They are know for sticking open or shut. A tap on them can free them..A look inside even by a novice may also reveal something burnt or unplugged etc.
12_5_2012_3_12_13_pm.jpgview of relay bottom side is up.

Dec 05, 2012 | Hitachi 53SDX01B 53" Rear Projection...

1 Answer

Sony rear proj tv, no picture, menu appears, but in three seperated colors pin cushioned.

Best to first if you have not done so---UNPLUG the set for several minutes and plug back to power to see if that fixes it (it does a lot of the time especially if you had a power outage).

Nov 30, 2012 | Sony Projection Televisions

1 Answer

My 52 rca screen looks like

This is a pin cushion issue. There should be a setting in the picture menu where you can adjust this. If that does not work than your unit has an issue that you will need a local service center to repair.

Oct 04, 2009 | RCA Projection Televisions

1 Answer

Hello\ screen pin cushioning

This is the most common failure on projection TV's regardless of the brand. It is caused by a failure of the convergence circuit. In particular, there are two STK IC chips, sometimes three depending on the model, and these are power amplifiers that drive the convergence yokes. They typically last 5-6 years and then they fail. Sometimes the failed IC will also burn out one or more of the low-ohm feedback resistors near the heat sink. If this is the case and you don't find/replace the burnt resistors, the picture will still not be converged, and within a short time of turning on the set, the new STK pack(s) can be damaged.

Jul 06, 2009 | Pioneer PRO-200 60" Rear Projection...

1 Answer

When i switch my samsung lcd tv model le32r87bd it starts alright but after about 2 seconds the picture goes and the screen turns black i can still hear the sound and the remote seems to still work but no...

Sounds like you need an inverter board which is the power supply for the screen lights. I tried to look up the part but samsung dosen't have a service diagram posted for it yet. Since it is so new you may want to find a samsung authorized service center because if the part is not available yet Samsung will have to solve the problem.

Jun 27, 2008 | Samsung Projection Televisions

1 Answer

Sony KP53V45 53 inch

two three-pin voltage regulators near the left side (looking in from the back) bend over from the heat and short to a ground rail. Check and straighten them with the power off and the unit unplugged

Mar 09, 2008 | Sony KP-53V45 53" Rear Projection...

1 Answer

Picture Problem!! and its not convergence (Double vision except for middle of screen)

Could be pin correction circuit or your picture tubes could be worn out . Sometimes when the crt's get weak the edges seem not as clear as the center of the screen . Give model number if you think the pin correction may be your problem but, the tv is pretty old and avg. life for them is 12 to 15 years when the picture tubes start to degrade . Good luck

Mar 01, 2008 | Sony KP-61S65 61" Rear Projection...

1 Answer

Pin cushioning or barreling.

Dec 25, 2007 | Hitachi 50UX57B 50" Rear Projection...

1 Answer

MY Samsung HCN4226W have perfect sound but no picture

I had the same experience with my set. I noticed there were 2 new cables attached to the new board and looking carefully noticed the connectors were different from the old. The new connector fit perfectly into the new board but wasnt the same as the old. I replaced the old cable with the new and the TV remained bad. I then flipped the connector to the main circuit board (bottom left) and the new board worked fine. I know nothing about Tv repair, but this new cable seems to be a universal connector in which the contacts are open on 2 sides...allowing them to be flipped if necessary. Now if I could get that solid line out of the display I'd be set!

Nov 05, 2006 | Samsung HCN4226W 42" Rear Projection...

1 Answer

Pt 56tw53 picture trouble

I had the same problem with my TV, It seems the high voltage trasnformer blew which in turn casued the pin cushion?? to blow. It then shuts the tv off to prevent more damage to it. $500 with service charges to get it fixed!

Nov 05, 2005 | Panasonic PT-56TW53 56" Rear Projection...

Not finding what you are looking for?
Toshiba 61H70 61" Rear Projection Television Logo

55 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

Dave Naylor
Dave Naylor

Level 3 Expert

834 Answers

The Knight
The Knight

Level 3 Expert

66476 Answers

Are you a Toshiba Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides