I HAVE GCMSHES 5977B ; during TUNING ;IT GIVES tune action stopped :MSD Fault 2 : RFPA Difficulty . WE try cleaning the ion source , changing filament but still the message appear
how can i resolve this?
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I HAVE GCMSHES 5977B ; during TUNING ;IT GIVES tune action stopped :MSD Fault 2 : RFPA Difficulty . WE try cleaning the ion source , changing filament but still the message appear
how can i resolve this?
why Agilent didnt explain any thing about RFPA IN ANY MANUAL
Because that is service emgineer job to check RF power amplifier...
dear Mr.Well,
Still, i will suggest to check all wires from side board and ion source..
Quad frequency adjustment may also problem..
Otherwise it may electronics problem of power amplifier or side board..
Check around above pic that any wire is broken or bend, may be brown color..
i checked all wire and removed the black cover to see component of the board and all is ok
Then dipping of quad is only option.
And if still problem then onsite service call need to check electronics..
i want to tell you the problem from the start point
first electricity cut off from the building while the instrument was running but after turn on instrument ; message appear
then the instrument stop the sequence
we cleaned ionsource ,change filament ,
i changed once the sideboard and turn on instrument but the same message appear then i changed the mainboard and still the same message
i tried to dipping the quad the value for 100 m/z in the manual is between 50 to 70 mv but i cannot decrease it below 77
also the value for 650 m/z in the manual is between 300 to 340 but i cannot decrease it below 620 mv
we installed a fresh copy of masshunter but the same message appear
can any Eng. from agilent tell me what is the solution for this problem and why different values appear during dipping quad
Did you check those golden color cable, highlighted in above pic..Sometimes, they are bent or crooked...U can compare with any other MS if u have...