[Breaking Down OLED TV] 'Black Stones' on Main Board [Part 8]

Dec 6, 2007
Nikkei Electronics Breakdown Team; Video clip created by Eiichi Wada of Tech-On!
Figure 1: Main board (front side): Heat radiation stickers were attached on large LSI chips such as NEC Electronics' D61162AF1 and Sony's CXD9903GG.
Figure 1: Main board (front side): Heat radiation stickers were attached on large LSI chips such as NEC Electronics' D61162AF1 and Sony's CXD9903GG.
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Figure 2: Main board (back side): The component marked with a "crab" symbol was the RTL8110SCL, an Ethernet controller LSI manufactured by Realtek Semiconductor Corp of Taiwan.
Figure 2: Main board (back side): The component marked with a "crab" symbol was the RTL8110SCL, an Ethernet controller LSI manufactured by Realtek Semiconductor Corp of Taiwan.
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Figure 3: The B-CAS card connector was mounted on a PCB on the upper face of the TV mount chassis.
Figure 3: The B-CAS card connector was mounted on a PCB on the upper face of the TV mount chassis.
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Figure 4: The B-CAS card connector was about 3.5mm thick.
Figure 4: The B-CAS card connector was about 3.5mm thick.
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The disassembly of the XEL-1, Sony's OLED TV, is reaching the final stage. The Nikkei Electronics Breakdown Team took out the main board on the bottom face of the TV mount chassis and observed it (Fig 1 and 2).

After removing the heat radiation sheets attached to the front side of the main board, we found the image processor, power supply and other circuits mounted like "black stones" with little space between them. As we saw components arranged so tightly, we understood why Sony provided such a large heat dissipation unit on the main board (See related article).

Two large LSI chips were mounted on the front side of the main board. They were the D61162AF1 released by NEC and the CXD9903GG from Sony. The D61162AF1 had Dolby Laboratories Inc's logo printed on it. It was thought to be an LSI that integrates the decoding function of MPEG-2 data and audio data processing circuit function used in the existing digital terrestrial broadcasting.

The CXD9903GG was connected to signal transmission connectors to the D61162AF1 and the display unit, and an HDMI connector. It was thought to be an LSI equipped with an image processing function for the input data.

B-CAS card connector mounted on a PCB on the upper face of the TV mount chassis

We then examined a printed circuit board on the upper face of the TV mount chassis. After removing the board, we could see the B-CAS card connector mounted on the back side (Fig 3). The connector was about 3.5mm thick (Fig 4). It was only about half the thickness of a standard B-CAS card connector.

movie OLED TV Breakdown Part3 (4:41)
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