THOMSON 42M61NF21, Service Manual, Page: 42 / 125

MT8206
PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE
June, 2006
5. Video Configuration
„
CVBS/SV Input Switch, S-first Function
We have 8 CVBS/SV input pins for arbitrary order of customers’ demand. Because there is only 1 TV decoder in MT8206G,
there is only one set (CVBS or SV) through the input pins. However, we can support S-first function without any external
circuits.
„
CVBS Bypass Output
The pin “TP2 “ can only output the CVBS signal of the chosen input but SV input.
„
INTERNAL VIDEO SWITCH
Main Path
Source
CVBS / S video (Total
8 input pins)
YPbPr RGB
Digital port (DVI / HDMI
/ CCIR 656 / CCIR601)
CVBS / S video
(Total 8 input pins)
YPbPr
X
RGB
X
PIP
path
Digital port (DVI /
HDMI / CCIR656 /
CCIR601)
z Above table is the PIP/POP table if we do not use any extern input switch.
z If video goes through DVI port, then PIP/POP case will not be limited to AD numbers.
„
Digital Input Pin Swap Selection
For layout conveniently, 8206 can flexibly swap input pin:
1. If VI0~VI23 configure as 24-bits R/G/B or CB/Y/CR mode -->
8206 can do B/R or CB/CR bus swap or MSB/LSB swap.
2. If VI8~VI23 configure as 16-bits CBCR/Y mode -->
8206 can do B/R or CB/CR bus swap or MSB/LSB swap
3. If VI16~VI23 or VI8~VI15 configure as 8-bits mode -->
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