Circuit Description; Main Board - Toshiba 13A21 Service Manual

4. Circuit Description

Main Board

4.1
4.1.1 Power Supply (DC/DC Converter)
1. 16V, 12V, 5VC, 5VSB id from Power Board.
2. 3V3ATZ from regulator IC203 (5VSB->3.3V)
3. 2V5DDR from regulator IC206 (5VSB->2.5V)
4. 1V8CTZ from regulator IC205 (5VSB->1.8V)
5. 5VT from regulator IC207 (12V->5V)
6. 32VT from DC-DC IC218 (12V->32V)
7. VDD_Core1V5 from DC-DC IC201 (12V->1.5V)
8. 5VA from 5VC
9. 3V3A/ 3V3HDMI from regulator IC202 (5VA->3.3V)
10. 1V8HDMI from regulator IC216 (5VA->1.8V)
11. 2V5VADC/2V5ATSC from regulator IC209 (5VA->2.5V)
12. 1V8ATSC from regulator IC214 (5VA->1.8V)
13. 3V3VDC/3V3ATSC from regulator IC211 (5VA->3.3V)
14. 1V2VDC from regulator IC215 (5VA->1.2V)
4.1.2 Image Processor
The Genesis Microchip FLI8532 (IC404) is a fully integrated single chip solution for LCD TV. It includes an integrated
3-D Digital Video Decoder with Faroudja DCDi Cinema video format conversion, video enhancement, and noise reduction.
The level of video quality that could previously only be seen on an exclusive Faroudja Home Theater System is now
available in a single chip solution.
The auto-detection and Faroudja DCDi Cinema technology allow the FLI8532 to detect, process, and enhance any video or
PC graphic format worldwide without the need for additional hardware.
The integrated VBI dataslicer and decoder allow for significant cost reduction by removing the need for expensive, external
VBI dataslicers and decoders. The FLI8532 supports many worldwide VBI standards for applications of Teletext, Closed
Captioning, V-Chip, and other VBI technologies.
An embedded micro-controller and a versatile OSD in a single device will facilitate rapid development of a reliable and
attractive product.
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