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About Rick Montgomery
Expertise
Most questions about 1970's-1980's audio equipment. Most 1980's -1990's VCR's and VCR combo's. Most 1980's-1990's car audio, except original equipment. I know name brand after-market such as Kenwood, Pioneer, JVC, and some Sony. I am not so good with TV's, DVD's or camcorders. I do not work on Projection TV sets at all. I also have no access to documebntation for sets outside of the United States.

Experience
Professional Electronics Technician since 1975, specializing in most audio, home, portable and car. Also all VCR's. Limited TV knowledge. No projection TV experience

Organizations
Through work, NESDA.

Publications
n/a

Education/Credentials
High School. Graduated with 2 yrs Vocational Electronics in High School.

Awards and Honors
Certificates of completion of factory training seminars for various brands

Past/Present Clients
Thousands of customers to the Service Centers I have worked for.

You are here: Experts > Home/Garden > Home Appliances > TV/VCR/Stereo Troubleshooting > Hitachi 46" rear projection TV

TV/VCR/Stereo Troubleshooting - Hitachi 46" rear projection TV

Expert: Rick Montgomery - 11/2/2009

Question
I have a 6 year old 46" rear projection Hitachi model 46FS500 that was working fine and suddenly today has double picture color in some areas and a swoop like wave at the top that is green/purple etc. the center section seems to be somewhat normal but the top and bottom are warped. We tried to use the magic focus button more than once but the green section is also warped. What would cause this

Answer
Doryta,
As my profile reflects, I do not work on projection TV's, but I do know what is going on with your set. In the bottom of your set, you have 3 picture tubes, red, green, and blue, one for each of the primary colors of light. Each projects it's component of the complete color picture to a mirror on the back of your set, and then onto the screen that you watch. There is a circuit that causes these 3 images to align, or CONVERGE into the one full color image you see. Your convergence circuit has some kind of defect. The best analogy I can give you as to why your magic focus doesn't work is that of a stereo with one channel shorted out. It won't matter where you set the volume and tone controls to. Until you repair the amplifier, it will not be able to respond. Likewise in your TV, until you have the convergence amplifier repaired, your magic focus will not be able to respond. In our service center, the average repair runs from $200 to $400
regards,
Rick

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