HELP TM6900HD combo non super

[fastken]

I was checking the cable at the LNB for loose connection when the cable came off the F connector thus shorting the cable and consequently the receiver which is now non-functional. Checks were made and power is at the PSU board, but the receiver is dead, no front display lights. when a short occurs does it affect the PSU board or the Main board.?
Help please.
fastken

[Hamrag1]

Have a read here -

https://www.satpimps.co.uk/showthread.php?148113-Tm-6900-hd-super-combo-Power

[sat_rrstm]

I don't know if this will help,but the front display of my almost 3 years old TM-6900 Super is totally gone from time to time,but the box is still fully functional even during that display lack.