TV/VCR/Stereo Troubleshooting/magnavox 20MT133S

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Expert: cleggsan - 7/6/2009


Question
i just took a magnavox 20MT133S out of the box brand new that was in storage for a year or more and tried to turn it on.... comes on and then after 3-5 seconds, shuts off... tried about 20 times... same thing over & over... help!... & thanks, harry...

Answer
It is not good for consumer electronics products to remain in storage for long periods of time. This is due to the fact they have temperature and age sensitive materials that are better when used occasionally.

There are many things that can cause the set to shut down. Most likely - say 80% - is the power supply.  The electrolytics in the power supply have probably gone bad.  The electrolyte in them has become depolarized and caused a short in the power supply, perhaps.

Sorry for the bad news.  And, to make it worse the cost of repair might be as much as the set cost when it was new!

C  

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cleggsan

Expertise

Consumer Electronics of all kinds. Audio, esoteric audio systems and components, video, tv. Digital equipment for consumer use. Ham radio and automotive electronics. Note: I give advice on tv repair based on general consumer electronics engineering experience but I am not engaged in actual repair of sets. MAKE SURE YOU GIVE THE MAKE AND MODEL NUMBER AND AGE OF THE SET. BE SURE TO CHECK YOUR EMAIL FOR THE RETURN ANSWER DURING THE NEXT 24 HOURS AS I TRY TO REPLY TO ALL QUESTIONS WITHIN THE SAME DAY IF NOT THE SAME HOUR.

Experience

Electrical Engineering; recording, broadcasting, design, international standards, tv and radio theory and practice.

Organizations
FELLOW of AES (Audio Engineering Society)
Senior Life Member of IEEE (Institute of Electronic and Electrical Engineers)
International Consulting Organization


Publications
IEEE Spectrum
Various Consumer Electronic publications

Education/Credentials
BSEE
MSCS
MBA

Awards and Honors
Famous Engineer for Digital Audio

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