Thanks for your information, guys ToolPeg is back in business! I inspected and found that it was actually some of the other resistors close to those ones. 3 of the 4 (sled) channels had this issue, the inbuild ones had no problems. After resoldering the surface mounts down it is all good again. I have taken a photo and added the components that died on mine incase its useful for anyone else, with markers to the R73/R74 as talked about above.

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http://empegbbs.com/ubbthreads/download.php?Number=285130
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