6-32
888-2586-001
9/15/06
WARNING: Disconnect primary power prior to servicing.
Platinum Z16HD+
Section 6 Troubleshooting
the IPAs and the exciter and the PA Controllers will mute the PAs. At this point an
ISO_Load fault will be reported in the fault log and the transmitter will mute
momentarily. The possible faults are:
•
ISO_AZ, ISO_BZ, ISO_CZ OR ISO_DZ - These faults will most likely be pro-
ceeded by PA and PA_ISO faults which have imbalanced the Z-Plane outputs. PA
currents, voltages and temperatures and PA_ISO load temperatures should be
checked as a likely cause of this problem.
•
ISO_AB or ISO_CD - These faults will most likely be proceeded by PA and
PA_ISO faults which have imbalanced the Z-Plane outputs. PA currents, voltages and
temperatures and PA_ISO load temperatures should be checked as a likely cause of
this problem.
•
ISO_ABCD - This fault will most likely be proceeded by PA and PA_ISO faults
which have imbalanced the power block outputs. PA and PA_ISO load temperatures,
currents and voltages should be checked as a likely cause of this problem. An imbal-
ance between the IPA outputs could also cause heating of this load. Verify IPA opera-
tion by checking IPA currents, voltages and power outputs in the Diagnostics
Display.
6.12.23 RFSOURCE#_LOW, Fault
If the RF source’s forward power drops to 40% or less of normal RF output, an
indication is given.
6.12.24 RFSOURCE#_AFC, Fault
This is the PLL unlock fault from the exciter. It causes no direct transmitter action, but
is merely displayed in the fault log and on the front panel fault light. Action will not be
taken until an exciter low power condition is detected. The controller will delay 40
seconds to give the exciter time to recover, then switch to another exciter (if available).
6.12.25 RFSOURCE#, Fault
Indicates there is an exciter or BoostPro malfunction. This is a summary of critical
faults, including VSWR and Overtemp. See corresponding technical manual for
explanations.
6.13 PA Signal Tracing
Tracing signals from the PA Controller to the PAs can be very confusing. The problem
lies in the fact that the PA Controller Boards and the Z-Planes are generic except for the
ID jumper settings which designate the board for a specific position. Since the
Summary of Contents for Platinum Z16HD+
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