My son's Multichoice 1110(+2) decoder developed the dreaded 8118 error. Following on from the theme on
http://www.pcstats.com/articleview.cfm?articleID=195, and in the past having replaced several blown capacitors on a motherboard successfully, and having repaired several PC power supplies with the same problems, I opened up the decoder and sure enough, capacitor C10 was slightly bulged on top. I removed the power supply (it's easy to do), and replace the old 470 uF 16v job with a 63v one from Yebo Electronics. Part number ELT477, price R5.01 plus VAT.
The device is now working 100%.