7200 no longer receiving Sat signal

[Stanmannus]

I have a 7200 that has recently lost signal. Recent firmware etc. It just stopped receiving sat signal.
- Output voltages seem to be present & correct (12.8 & 18.8 VDc.)
- LNB & cables confirmed in working condition with other IRDs.
- No switch between 119 & IRD. (SW44 & legacy quad removed from equation)
- during dish-pointing signal strength = 0 on all transponders.
- With or without switch attached, switch check always reports-No switch detected.
- The tuner can has been replaced = no change
- DBS Receiver chip replaced = no change
- Voltage output from power supply is correct.
- "Factory Mode" diagnostics solved nothing
Does seem to pick up a ghost signal of 12% for 1/2 second then gone again.

Any trouble-shooting ideas regarding what should I look at next ?

Anyone know what the Dishplayer equivalent to the Conextant chip is?

[durdenb]

Hi, i had a prob no picture or sound acting like not getting a signal with a 7100 and a 7200 a short time back (i forget when)and found on another site that i had to update the keys which worked.