A fix for the audio issue on Sam460ex and AmigaOne 500

Date 2013/2/27 10:47:27 | Topic: Hardware News

The problem with the crackling audio on some Sam460ex boards/AmigaOne 500 systems has been identified.

For some reasons, still under investigation, a few boards miss a resistor (R267)
This 0 ohm resistor is responsible for the clock source selection of the AC97 codec, without it the codec runs at a wrong frequency which causes the crackling audio.

If you have a sound quality problem with your Sam460ex board/AmigaOne system, please check if the R267 resistor is in place or not. See this photo from the bottom of the board:

Original Image

Alternatively the problem may be mitigated with a special sm502.audio driver which minimizes (but not completely removes) the noise. Download and try this alternate driver




This article comes from The Amigans website
https://www.amigans.net

The URL for this story is:
https://www.amigans.net/modules/news/article.php?storyid=1819