My T5 worked very good couple years but when my cooling fan died over heated couple months ago, I did replace the cooling fan which is a labtop cooler not a big deal, It started working again okay, but recently I can only watch tv maybe 30 seconds starts loosing signal from 90 to 80 than 70 55 and so on at the end all red, if I cool it off it runs again 30 second and same.I checked the module its not that because same without the module runs 30 seconds at the end all red new lnb, direct input, eliminated switch.I tooked a part main board looks good no burns even replaced power supply still same factory reset everything I done you name it.Only thing I can think of is the capacitor serving the tuner and for signal strenght but don't know which one would that be I'm not good at checking electronic If any body has a good guess which one would be please let me know.
Btw if I put the board in freezer couple hours It runs longer till something gets hot I think one of the capacitor, unit changes channels display is okay.
Power on off makes it good 30 second again don't have the diagram don't know which one to change they all look good no bumps.
Thanks for the help