20 Most Recent Toshiba 50H72 50" Rear Projection Television Questions & Answers

I figured it out myself. R243 was intermittently open. Replaced it, and now we can watch the Super Bowl.

I have to suspect the model number listed here is not correct as that model is a older rear projection set?

You cannot

Hiwavy lines in the picture or maybe on your LCDcheck here for any solutions: http://ccabong26.blogspot.com/

Can you please post an image of tv screen that shows its problem so it would be easy to diagnose.
Thanks.

Is it Toshiba 50H72 and what does tv show in upper half of screen?
These info will help me to diagnose the problem.
Thanks.

There is a common problem with this particular model that involves what is known as the"Hypermodle" this is a cuircit board that controls signal processing. The symptoms you describe sounds similar to this problem. This board has 11 very small parts call capacitors,that go faulty over time and get worse with more time. Ideally replaceing this board was the right thing to do in the past however since this was a common occurance the boards quickly became in short supply. Toshiba issued a Service bulliteen to shops on how to repair them. I repaired 2 of them a month at the shop. Now this is a repair that only the most experience tech should attempt. very small parts and easy to damage if not done right. Our shop generally charged around 250 to do this repair. most of the cost was in labor. but always ask if they have done this repair before.

jnagle,

By horizontal I will assume that you mean there is no vertical drive and you just have a line across the screen. If this is the case then I have a tip at http://www.fixya.com/support/r7887362-crt_projection_tv_lost_vertical_drive which should help resolve your problem.

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

hardrocko

The error codes only indicate the convergence circuit is not working.

In this set it is VERY important to check the 1.8 ohm resistors, if even one is open the convergence will look bad.

These sets are not real easy to get at the chips etc, and I learned the hard way a long time ago to check all the resistors, if needed unsolder one end of each of the 1.8 ohm resistors and be sure all are GOOD.

SD TECH

Hi,
TV/CABLE function
1 Press MENU, then press S or T until the SET UP menu appears.
2 Press up/down arrow button on remote until "TV/CABLE" is highlighted.
3 Press to highlight either "TV" or "CABLE", whichever you use.
Hope these info will help you.
Let me know if you need user manual free copy of Toshiba 50H72 tv.
Thanks.

Most Hyper modules are no longer available from Toshiba.
Hyper modules go bad due to problems in the power supply.
Which also needs attention.
We have developed a method of repairing the modules.
We are a Toshiba dealer in Milwaukee.
Note: What you read on the Internet is only a guess. You guess at you own expense and risk.
A dealer assumes that risk for you and provides a warranty.
[email protected]

avoisq,

I could not find a free copy of this models service manual but it is available for download at http://www.servicemanuals.net for $17.00 US.

Thanks for using FixYa and for the great rating.

hardrocko

http://www.fixdevice.com/smanuals/file/31187.html
Above is your service manual, i believe your problem will most likely be the STK device Stereo audio output amplifier, developing a fault, either that or the power to the Amp is compromised, so as always start with the Power supply first and work out. Replacing the STK device is not too hard, you need a desoldering tool, and a good 40 watt soldering iron with a fine tip and some rosin cored solder.

Also have a look at this master google link, have a look regarding the stk replacement in particular.
http://www.google.co.nz/search?sourceid=chrome&ie=UTF-8&q=Toshiba+50H72+service+manual
BE CAREFUL

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.

You can find more details and solutions here on Fixya at the following link below. Or click HERE


http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

No,this tv have chemicals,it sides could destroy those sensetive chemicals,causes it to distort ur DLP CRTS tubes or worse cases chemicals leakage to the circuits boards,destroy both DLP CRT tubes and circuits boards together.Best way is to tranport it up right.