Hi all - hope I am posting this in the right section.
I have a Vu Duo working great on latest Vix image, sweet! However, I've now picked up a second hand DM500s, to basically play around with. Have flashed a couple of images with flashwizard and then null modem after a bad flash, currently on PLi Jade. Problem I'm having is tuner related. I have a fixed dish at 28.2e and a motorised dish for my Vu. Signal (SNR) is around 60% when I put the DM500 on the motorised dish for 28e. When I put the same feed into my Vu or Sly HD box the signal strength is 90-100%. Now here's the weird bit, the fixed Sly dish has SNR of 80-90 on the Sly HD box (so lower than the motorised) but when I put it in the DM500s it reports 80-90% on some but not all transponders. The Sly dish has bog standard quad LNB and the motorised a quad inverto black ultra. Bottom line is the DM500s doesn't lock onto a signal when connected to the motorised dish. Also, I can't get it to move the dish when I try to set up Diseqc?
I've read of people having tuner issues and changing smd transitors Q71 & Q72 which switch voltages in the PSU. This is something I could manage but wondered if the symptoms match the fix?
Last bit of info, I think it an original box based on the mac code, but not sure if there is another way of telling?
Grateful for advice or to be pointed in the right direction?