[Amps] how to check grid current

[Alan Hevner]

I HAVE A AL-811, THAT I AM HAVING PROBLEMS WITH. I HAVE 1700 VOLTS PLATE CURRENT IN THE HV POSITION. 
WHEN I SWITCH TO IP THERE IS NOT A READING AT ALL ON EITHER METER.
I WOULD A PICTORIAL VIEW OF THE COMPONDENTS IF POSSIBLE, THAT WAY I COULD SEE WHERE TO CHECK NEXT.
CAN ANYONE OUT THERE TELL ME WHERE TO LOOK, CHECK, INSPECT TO SEE PART IS BAD AND GET IT UP AND RUNNING AGN.

THANKS          AL       WV4AL