You can use TV Out on i.MX27ADS board by following these steps:
- Remove the R71 and solder it on R69 place;
See the image before of this process:
![Antes.jpg Antes.jpg](https://community.nxp.com/t5/image/serverpage/image-id/37795i2FD1AC52715A141A/image-size/large?v=1.0&px=999)
And after this process:
![Depois.jpg Depois.jpg](https://community.nxp.com/t5/image/serverpage/image-id/37794i27D681D637EB0B34/image-size/large?v=1.0&px=999)
- Set SWITCH S15: 1 = on; [2-5] = off.
See the image for more details:
![Switch.jpg Switch.jpg](https://community.nxp.com/t5/image/serverpage/image-id/37745iFEDEF18CA3271228/image-size/large?v=1.0&px=999)
Add to your Linux command line (in Redboot) the following parameter:
video=mxcfb:TV-NTSC
After this modification, the video signal will operate at 27MHz, that are applicable just with TV-OUT card. The LCD card will not work at this frequency.