Cheap Chinese crap at it again. LCD TV's are the latest ones afflicted.
http://www.digitimes.com/bits_chips/a20080902PD213.html
http://www.digitimes.com/bits_chips/a20080902PD213.html
Sources at passive component distributors indicated that a relatively high ratio of maintenance is being required for LCD TVs that are made in China. A look at the components inside the TVs show that problematic aluminum electrolytic capacitors installed on the controller board may be the major reason, they explained.
The sources indicated that there seems to be more LCD TVs having factory maintenance problems recently, especially for China brands and systems that were subcontracted to China-based makers for production. Some of these LCD TVs have even been recalled. But they said it is hard to estimate a concrete figures for the amount of TVs that have such problems.
A major issue may stem from the aluminum electrolytic capacitors that are installed in these LCD TVs' controller boards, the sources noted. Given that LCD TVs have higher requirements for audio processing, some passive component makers which opt for cheaper aluminum electrolytic capacitors have found the capacitors vaporize too fast. This eventually either causes unclear image or no image, the sources said. Most of these LCD TVs have been shipped to the market for less than one year, they added.
Despite solid aluminum electrolytic capacitors or other aluminum electrolytic capacitors being replaced, the sources noted that demand for these two components should not see a critical jump in the near term. Demand from maintenance can hardly compare to a demand surge that was driven by a market changing event such as the launch of the 775-pin Intel CPU in 2005.
The sources indicated that there seems to be more LCD TVs having factory maintenance problems recently, especially for China brands and systems that were subcontracted to China-based makers for production. Some of these LCD TVs have even been recalled. But they said it is hard to estimate a concrete figures for the amount of TVs that have such problems.
A major issue may stem from the aluminum electrolytic capacitors that are installed in these LCD TVs' controller boards, the sources noted. Given that LCD TVs have higher requirements for audio processing, some passive component makers which opt for cheaper aluminum electrolytic capacitors have found the capacitors vaporize too fast. This eventually either causes unclear image or no image, the sources said. Most of these LCD TVs have been shipped to the market for less than one year, they added.
Despite solid aluminum electrolytic capacitors or other aluminum electrolytic capacitors being replaced, the sources noted that demand for these two components should not see a critical jump in the near term. Demand from maintenance can hardly compare to a demand surge that was driven by a market changing event such as the launch of the 775-pin Intel CPU in 2005.
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