External Load Checks - Open/Short Rf Output Path - Advanced Energy VarioMatch Match Network VM 1000 Platform User Manual

TROU BLESHOOTING U NIT OUTPUT
Use extreme caution as this section involves troubleshooting the output of the unit.
.&_
W ARNING:
RISK OF DEATH OR BODILY INJURY. Disconnect all sources of input
power before working on this unit or anything connected to it.
.&_
W ARNING:
Operating and maintenance personnel must have the correct training
before setting up, maintaining, or troubleshooting high-energy electrical
equipment. Potentially lethal voltages may cause serious personal injury
or damage to equipment. Ensure that proper safety precautions are
taken.

External Load Checks - Open/Short RF Output Path

There are three basic components that could impede the RF path: the V arioMatch
match network
steps below.
1. Disconnect AC MAINS from both the generator and the V arioMatch match
network to ensure that there is no RF power at the output of the unit.
2. For the unit output connector:
a. Remove the output cable and visually
arcing or heat stress.
b. Verify an open is measured between the center conductor and outer shield.
c. Make sure the output connector is mounted firmly to the VarioMatch match
network chassis.
3. For the output cable:
a. Visually make sure there is a good connection between the output cable and
end connectors on both sides of the output cable.
b. Swap cables if possible and retry operating the VarioMatch match network.
4. For the tuner and the chamber:
► Swap the V arioMatch match network with another known good unit.
Also consider these questions:
57020080-00D
AE VarioMatch
output connector, the output cable or lead, or the chamber. Follow the
Troubleshooting and Global Services
Match Network, VM 1000/1500 Platform
TM
inspect the output connector for signs of
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