problem signal starsat 4200 d

[king oran]

j'ai un 4200 d quand j'ai allume il affiche court circuit LNB et quand j'ai débranche cable lnb affiche pas de signal s'il vous plait aidez moi

[djmjd]

hi.
Im Iranian and i cant undrestand your language but.
check these steps:
1. if you are using LNBs with 2 (or more) output
your 4000 is not compatible with that.
--you have to upload sharing frimware on your 4000
2.check your switch

if everything is okay then
3.check your tuner