Question about Toshiba 57H82 57" Rear Projection Television
Hi! I was reading the posts you made regarding the Hyper Module on the Toshiba 57H82. We are having what seems to be a similar problem with ours where it is almost a scrambled look on the screen that gradually improves over about 5-10 minutes. I am mechanically inclined so I can do quite a bit. It looks like based on the things I was reading that you can either replace the components inside this part or replace this part to resolve this problem. Is there a way to test if this is definitely the problem? If so, are there instructions available for making this repair inexpensively or should I have it repaired by a professional?
Thanks so much for the help!
You should ALWAYS consider having a professional do the job, just arm yourself with enough information about the potential repair to make an informed decision regarding your approval for it...
That said, yes,,,, a tech would pull the hyper module and test the caps in question using an esr meter (equivilent series resistance). If the esr is too high the cap is not dissipating voltage at a correct rate until its internal temp rises and allows for expansion inside. Cap that are critically high esr require a temp higher than their normal operating range and therefore always have the squiggly lines appear on the screen.
The caps in these are smd (surface mount) caps and are usually replaced using mini camcorder caps - bending both poles out vertically from the cap and trimming them to fit the platform. SMD's are so much more difficult to work with and I for one hate burning my fingers on a hot solder tip.
You can consider pulling the module and having it sent in for the repair as an option. On a scale of 1 to 10 and ten being the most difficult, this repair would be a 7...
Hope this helps.
William Rayburn, CET
PO Box 442
Long Beach, WA. 98631
Posted on Nov 13, 2008
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Posted on Jan 02, 2017
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