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HI-POT TEST
1. Hi-Pot Test
THIS IS A MANDATORY TEST
CAUTION - All units that are disassembled as
part of a repair MUST be Hi-Pot tested before
being returned to the customer.
This test applies a high voltage to the AC line
cord and measures the current leakage to the
chassis and/or other metal parts on the outside
of the unit to check for potential shock hazards.
If the unit fails Hi-Pot test, it must be returned to
the technician for troubleshooting and repair of
the problem, after which it must be Hi-Pot tested
again.
Hi-Pot Tester Settings:
Type of product: 100-240 VAC 2-wire Class II
Test Voltage: 1591 VAC
Trip Current Limits: 0.5mA min, 10mA max
Ramp: 1 second
Dwell: 4 seconds
Procedure
1.1 Connect the positive side (hot) of the
Hi-Pot tester to both terminals of the AC mains
input.
1.2 Connect the return of the Hi-Pot tester to
the channel 1 to 3 audio connector ground
connections. Pin 1 on the channel 1 and 2 XLR
combo jacks, sleeve of 1/8” and 1/4” inputs and
the shell of the Service USB-C jack.
This test must be performed only after the
system has been completely assembled.
Failure of this test indicates a faulty
transformer, defective or incorrectly dressed
primary wiring, improperly attached leads,
surface contamination of either the power
supply board or the I/O connector board, or
incorrectly adjusted trip point on tester.
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