20 Most Recent Toshiba TP50H60 50" Rear Projection Television Questions & Answers


Tv has power but no picture on the screen
/uploads/images/tv-power-but-no-picture-screen-34715334-2-1.jpg

Toshiba TP50H60... | Answered on May 05, 2017


Main board fault. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/

Toshiba TP50H60... | Answered on Jul 30, 2014


Idle or changing modes?? (guess)

Toshiba TP50H60... | Answered on Jul 16, 2014


Look for the slot where it went thru the back cover--there will either be a 2 pin plug for it or two posts where it was soldered=hint it will be directly connected to the line fuse the set has--it is a polarized cord and must be connected correctly.

Toshiba TP50H60... | Answered on May 03, 2012


Yes, the clear liquid is Glycol and it is like antifreeze but ten times more toxic. This is the reason now most landfills or dumps will not accept these type of sets for disposal.

The chemical is absorbed directly into your body via your skin.

Wash with soap and if Glycol has leaked get the set out of the house as if it gets to the bottom of the set etc a animal or small child could be harmed (I have seen it kill dogs).



Let me know if you have questions or concerns.


SD TECH

Toshiba TP50H60... | Answered on Sep 17, 2011


Hi,

This is an indication of out-of-regulation in the power supply section. This is cause by leaky/dried electrolytic capacitor in that section. It will dropped the supply from normal voltage and will disable the unit.It needs a little warm-up to make itself stable but the symptom will get worst until the unit will not even power up. Sometimes it has a bulged/dome at the top but not all, it is better that you have acapacitor checker/tester to determine its condition. Your unit will back to normal again if the leaky/dried capacitor is isolated. If you don't have a capacitor checker, replace all electrolytic capacitor in the power supply section, it will not cost you much because this is one of the cheapest part on that board. Watch this video for more info regarding electrolytic capacitor.

If you don't have necessary tools and test instruments, and can't do the job yourself, I would advice you to look for a professional to troubleshoot the problem. Don't attempt to work in the power supply if you don't know the safety precaution of handling it, there some stored electricity enough to hurt you with a little mistake only.

Hope I helped you.

Have a nice day!

Thanks for using Fixya.


Jdvillanueva

Toshiba TP50H60... | Answered on Jul 14, 2011


A new screen is available through Encompass Parts Distribution. You may get a little better price through an authorized Toshiba servicer as well. Contact me if you need a price quote.

Bill W
integrityhomeworx.com

Toshiba TP50H60... | Answered on Mar 14, 2011


carol_mccool,

You have a convergence issue. If trying to set the convergence does not work I have a tip at http://www.fixya.com/support/r4220499-change_projection_tv_convergence_ics which explains the problem, where to get the parts and how to do the repair as well as links to additional information.

Thanks for using FixYa and for the great rating. Please consider a testimonial. Thank you.

hardrocko

Toshiba TP50H60... | Answered on Jan 27, 2011


Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.

The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded overs. To get fixed either call in a local TV repair company or goto sites such as Tv Repair Kits to get a repair kit with instructions. Here is there link.

http://www.tvrepairkits.com/xcart/home.php?partner=papa1dude

They have put together complete kits for most models that include the parts, step by step photo instructions, repair assistance, etc.

Toshiba TP50H60... | Answered on Jun 14, 2010


The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix herebb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Toshiba TP50H60... | Answered on Apr 18, 2010


http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html


http://www.eserviceinfo.com/

Toshiba TP50H60... | Answered on Apr 17, 2010


The two possible cause of the problem are the following:

Bad inverter board - The inverter is the high voltage board that provides variable power to the backlight lamp. This is the most common. When inverter is faulty you can get no picture, or a very dim picture that can only be seen by pointing a torch light with a 45 degree angle on the LCD surface from very near distance.
The inverter must be tested by reading voltages with a multimeter.

Voltage regulator - the voltage regulator is a component that is on the power supply board and is responsible in providing accurate input and output voltage for components. If the voltage regulator is not working correctly, it might cause the TV to shut off and turn in back on after couple of seconds.

Unfortunately, testing these components (inverter board and voltage regulator) could be dangerous. I would suggest to contact a pro to test it for you. But replacing this components should not cost you too much.

Good luck and have a great day!

Toshiba TP50H60... | Answered on Feb 14, 2010


This would require a replacement of the YAxis board - and is approximately $700 for parts/labor.... depending on your location.

Thanks for using FixYa!!

Toshiba TP50H60... | Answered on Jan 04, 2010


The power light is using the same small 'always on' power supply that keeps the infra-red receiver for remote functions alive too. It is likely that the main power supply is sick and will need repair or replacement.
This is probably a separate board (these are often outsourced to specialty companies) and should be user replaceable once you identify it.
What you can do is; unplug the set, let it stand overnight or at least several hours, remove the back panel and look for a separate board with mostly larger components on it; it will have a ferrite core (no laminations as with a line-frequency part) transformer on it and several larger capacitors which are cylindrical and mounted vertically to the board.

Before touching anything inside, especially on that board, allow several hours to be safe since the larger capacitors can hold a painful voltage charge for some hours.

If you see signs of overheating such as discoloration of the board material, the PSU may not be repairable but if you can find a part number on the board, you might be able to buy the power supply from the mfr.(or company linked below) and install it yourself but it will likely have the same problem eventually unless they have altered the design or improved component quality.
If there are no signs of heat damage to the board, there may be companies offering to repair it as a subassembly instead of repairing the whole set which could be much more expensive.
If you choose to replace or have it done, the main power supply still may not be at fault since most are capable of switching on and off if a downstream problem is causing an overload and the power supply for the backlight may be at fault.


Possible board source:

Jimmy's Parts

Toshiba TP50H60... | Answered on Nov 23, 2009


Your symptom sounds like a faulty capacitor in the vertical deflection circuit.
What you are seeing is called vertical fold-over.
If you want to fix this yourself and are handy with a soldering iron, it is not that difficult. Just look for a 1uf capacitor near the vertical IC. The vertical IC will be a black IC with straight legs mounted to a heat sink, generally in the center of the circuit board.
Note: Be careful when working on a television as the CRT and other capacitors can hold a charge that can be very dangerous.

I would recommend that you contact a local service center and see if you can get a quote for the repair. I would normally charge between $120.00-130.00 for this type of repair. The cost may vary depending on where you are located.

I hope this information allows you to resolve this issue.
If I have helped you, please help me, and rate this suggestion the highest FixYa rating. (Two Thumbs Up)
Please Note: If you cannot rate this post with the highest rating, then please do not leave any rating. I am doing this for free and I do not think that any rating other that the best is needed.
If you need further assistance please comment to this post and I will try to help you further.

Toshiba TP50H60... | Answered on Sep 07, 2009


Your screen has gone crazy on you because your convergence IC's have gone bad.   These IC's operate at a very high temp, and usually only last 4-5 years.  
If you remove the back of the set, you will want to look for the BIGGEST heatsink in there, on that heatsink, you will see 2 lage IC's , probably STK392-110, or STK392-120's or something close...regardless - you can go on ebay to order the new ones, but MAKE SURE they are Genuine SANYO IC's and not counterfiet cheapies. the cheap ones may only last 2 months.. 
You will also need some "Heat transfer paste" - you can pick this up at radio shack.   Once you remove the old IC's, test all the large resistors near them.. pull one side of the resistor out of the board so you can check it out of circuit. they will usually have the value in Ohms, printed directly on the resistor, but you may have to use the resistor color code to find out what value they are....However, usually if there is any damage, the resistor will look like it has been HOT or fried. replace the IC's and any bad resistors, and you should be good to go.   If after replacing the IC's and any defective resistors, the convergence is still bad, make sure to use a multimeter to check ALL fuses on the boards, --- sometimes when the IC's go, they will take out a fuse to the convergence power supply. If you find any bad fuses, replace them accordingly!   If this STILL doesnt make it look right, you will need to find out how to get into service mode and do a coarse convergence adjustment. This information can be found in the Service manual for your set. If you dont have one you can download it at servicemanuals.net   Hope that helps!

Toshiba TP50H60... | Answered on Mar 25, 2009


http://www.eserviceinfo.com/

Toshiba TP50H60... | Answered on Dec 08, 2008


This is probably high voltage arcing from your flyback transformer, distro xformer, or cables. They need to be checked and cleaned, then the source of the arc needs some hi - q dope applied. This is 30,000 volts we're talking about, so be aware you could kill yourself if you don't know what you're doing ! !

Scott B

Toshiba TP50H60... | Answered on Mar 15, 2008

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