Question about Hitachi 46F500 46" Rear Projection HDTV-Ready Television
I have a Hitachi 46F500, chassis DP23K. After reading you website for 2 days I have gotten up the courage to fix my own TV. I have decided to order the Kit from B&D. I have (2) STK392-150 on the original board and I am going to replace them with the same ones in the kit. I think I need to replace RK50 too, because it looks a little brown so I can't see the color of the stripes on it and I don't know if it is a 2.2 or 2.7 ohm? I have searched everywhere, could someone please tell me which one it is?
Why does it seem to be so difficult to find information on the 46F500, is it because I bought it at Sears and it is a model specific to them or something.
I have even checked the free manual site (http://www.eserviceinfo.com/) and I couldn't find this model.
Thanks, No Sponge Bob for the kids makes for a long day!
posted on Feb 28, 2009
Rating: 91%, 106 votes
Your TV most likely has one of two possible problems.
Problem #1: Convergence Chip Failure ( common problem )
Here are some of the most common symptoms and example photos of a convergence problem
Here is a quick test....
Using your original remote go-to the tv settings then goto the convergence section.
Try to adjust the red and then the blue convergeColor converngence, blue and yellow, 3D effect - 2c07611.pngbr />
You should be able to move them up, down, left, and right.
If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.
You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.
Problem #2 CRT Fluid is Cloudy
Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green
PictureColor converngence, blue and yellow, 3D effect - 2c07611.pnget that needs the fluid changed.
TV set after fluid change
What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.
Posted on Mar 09, 2009
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Posted on Jan 02, 2017
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