[Breaking Down OLED TV] 'Black Stones' on Main Board [Part 8]
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.
OLED TV Breakdown Part3 (4:41)
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- [Breaking Down OLED TV] We Got Sony's OLED TV [Part 1]
- [Breaking Down OLED TV] We Found Another Box [Part 2]
- [Breaking Down OLED TV] We Watched Digital Terrestrial Broadcast [Part 3]
- [Breaking Down OLED TV] Sony's Commitment in the Instruction Manual [Part 4]
- [Breaking Down OLED TV] Drive Circuit Layout Realizes 3mm Thickness [Part 5]
- [Breaking Down OLED TV] Details of OLED Panel Exposed [Part 6]
- [Breaking Down OLED TV] Lump of Cu Found in TV Mount [Part 7]
- [Breaking Down OLED TV] Close Look at Ethernet Connector [Part 9]
- [Breaking Down OLED TV] High Full On/Off Contrast Ratio [Part 10]