here is a page that will tell you how to switch almost any sony amp from av1/av2 mode so that you may make your dish remote codes work with it.
RC Forums: SONY RECEIVERS: Changing Command Mode to AV1 (or AV2) (Page 1 of 5)
good luck. this page worked great for me.
RC Forums: SONY RECEIVERS: Changing Command Mode to AV1 (or AV2) (Page 1 of 5)
good luck. this page worked great for me.