[LCD TVs Teardown] What's inside $500 32-inch TV? [Part 3]

Jun 10, 2009
Nikkei Electronics Teardown Squad
Dynaconnective's 32-inch DVD player-equipped LCD TV, the DY-32SDDB, is priced at ¥49,800.
Dynaconnective's 32-inch DVD player-equipped LCD TV, the DY-32SDDB, is priced at ¥49,800.
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It features an LCD panel made by Samsung Electronics.
It features an LCD panel made by Samsung Electronics.
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The squad started to break down the TV with an engineer from a Japanese TV manufacturer.
The squad started to break down the TV with an engineer from a Japanese TV manufacturer.
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The back chassis removed
The back chassis removed
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The inside of the TV
The inside of the TV
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Continued from [LCD TVs Teardown] Only 2 Substrates Found Inside [Part 2]

After breaking down the Bravia KDL-32J5, Sony's energy-saving LCD TV, Nikkei Electronics Teardown Squad moved on to disassemble Dynaconnective's 32-inch DVD player-equipped LCD TV, the DY-32SDDB, featuring a low price of ¥49,800 (approx US$517).

Aeon Co Ltd, one of the largest distributors in Japan, launched the DY-32SDDB Feb 20, 2009, in a limited release of 15,000 units. And they were sold out in a few days. In terms of pricing, the TV is ¥30,000 to 40,000 cheaper than 32-inch LCD TVs manufactured by other major Japanese TV makers.

It is equipped with an LCD panel made by Samsung Electronics Co Ltd. Dynaconnective purchased a large amount of the panels at a low price when Samsung had an excessive inventory of the panels after the Lehman shock in 2008.

The LCD panel features a resolution of 1,366 x 768, a luminance of 500cd/m2 and a contrast ratio of 3,000:1, which are normal specifications for a 32-inch LCD TV.

Before breaking down the TV, we compared its image quality with that of the Bravia KDL-32J5.

"The Bravia has slightly better image quality, but there is little difference for general users," an engineer from a Japanese TV manufacturer said. However, he added, "The image qualities of low-priced LCD TVs are not worth discussing."

Too many distribution cables

We wrapped up the discussion of the image qualities and started to tear down the DY-32SDDB. We found a significant difference from the KDL-32J5 at first glance after removing the back chassis. To put it simply, there are so many distribution cables inside the DY-32SDDB that it looks messy in contrast to the well-organized inside of the KDL-32J5.

"When there are this many cables, a large amount of EMI (electro magnetic interference) is generated," an engineer from a Japanese TV manufacturer said. "Did they take enough measures against this problem?"

There are six substrates found inside the chassis. On the back of the LCD panel are a signal processing board, tuner circuit board, power supply board, inverter circuit board for the backlight and timing controller board for the LCD panel. A B-CAS card slot board is located on the back chassis.

"Japanese makers would never make this kind of design," an engineer said. "Its production efficiency must be very low."

To be continued