Question about Toshiba 55H70 55" Rear Projection Television
I have the same set. I have not found any videos online as of yet, but hopefully this link will help.
Posted on Feb 27, 2013
Convergence amp ic bad
Or send to ptscorp.com
please mark the post with a fixya
Posted on Feb 21, 2008
SOURCE: Television Problem
I have just run into the same thing, prior to the picture not coming on there was a loud whining noise, I thought it was the fan in the back, but, what I tried was removing the lower back panel, LIGHTLY tapping the light wheel assembly just left of the Bulb housing, and using a shop vac to first, **** the assembly around the edges and then reversing the air and Blowing it out. After much dust and dirt flying around the TV came on. It now only makes a little noise now and then, but, I will try this again today and then put the back panel back on. Since it would probably cost as much as a new TV for the color wheel, I gave this a try. For now, it is working.
Posted on Jul 21, 2008
SOURCE: toshiba 42h82 - "broken" picture
the "scan converter module" is located directly behind the board where your inputs are in the back of the set. That should repair the problem.
Posted on Jan 08, 2009
If you are seeing lines and or noise for the first several minutes and it goes away--I think I know what the problem is.
Has the period of time before it clears up been getting longer and longer?
Reply to me with the exact model number and I will tell you what is wrong and what has to be done to fix it.
A lot of these sets have problems with what is called a HYPER board----it controls all signal inside the set--confirm Toshiba and exact model number---
I am here to help people and I do this here for free.
REGARDS, SD TECH
Posted on Oct 31, 2009
Testimonial: "Very useful and considerate. thankyou"
Projection TV sets have several common problems listed below.
Problem #1) Convergence
Problem #2 CRT Fluid has clouded over.
You can see more examples and find a fix here...
Posted on Mar 25, 2010
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