[Google TV Teardown (1)] 'TV Board' and 'Android Board'

Nov 16, 2010
Nikkei Electronics Teardown Squad
Screws are being removed to take off the back cover.
Screws are being removed to take off the back cover.
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The inside of the NSX-24GT1 Google TV-compatible LCD TV. The power supply board (upper left), the "Android board" (lower left) and the "TV board" (right).
The inside of the NSX-24GT1 Google TV-compatible LCD TV. The power supply board (upper left), the "Android board" (lower left) and the "TV board" (right).
[Click to enlarge image]
The inside of Sony's 22-inch TV for sale in Japan. Its power supply board (left) and TV board (right).
The inside of Sony's 22-inch TV for sale in Japan. Its power supply board (left) and TV board (right).
[Click to enlarge image]
The debug port left on the TV board of the NSX-24GT1 (center)
The debug port left on the TV board of the NSX-24GT1 (center)
[Click to enlarge image]
The large heatsink on the Android board
The large heatsink on the Android board
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Nikkei Electronics Teardown Squad set out to break down the "NSX-24GT1," Sony Corp's Google TV-compatible LCD TV, with help from engineers.

We put the TV on a table with its screen face down and took out screws from it. After that, it was very easy to remove the back cover.

"It is quite messy inside," one of the engineers said.

There were many cables inside the TV. They ran between three circuit boards. Two of them constituted a main board, and the third one was a power supply board.

Before starting the teardown, we predicted that the TV circuits of the Google TV were concentrated on a board equipped with Intel Corp's Atom CE4100 SoC (system-on-chip) because the SoC is designed for TVs. However, the TV comes with two circuit boards in addition to the power supply board.

One of them is mounted with a CAN tuner and a heatsink, and the other comes with a large heatsink. The former seemed to be a "TV board" having TV functions, and the latter was apparently an "Android board" equipped with the CE4100.

This composition is very similar to that of the "Robro-TV," which we tore down before. The Robro-TV looked like a normal TV added with a PC unit.

For comparison, we examined the inside of Sony's 22-inch TV for sale in Japan and found that it looked like the Google TV without its Android board. It seems that, to develop products like the Robro-TV and the NSX-24GT1, Sony tends to add a computer for information processing to an existing TV.

"There's a debug port," said an engineer who was looking at the NSX-24GT1.

Most of Sony's TVs are left with a debug port, he said.

Both of the heatsinks mounted on the TV board and the Android board were attached by using solder. We wanted to know what SoC is used for TV functions and examine the circuits around the "CE4100," wondering how we can remove the heatsinks.

"I can remove them if I got a soldering iron," an engineer said.

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