12/20/11
888-2595-001
6-13
WARNING: Disconnect primary power prior to servicing.
Section 6 Troubleshooting
ZX Series
Table 6-5 Transmitter Control
Symptom
Cause and Solution
No RJ-45 connectivity
on transmitter rear
interface panel
Possible no web remote installed. Consult factory test data or original
transmitter paperwork to determine if web remote option has been fitted.
Possible incorrect IP address. Consult Appendix A of this manual for specific
information on web remote troubleshooting.
Persistent exciter
fault on remote
control
Possible incorrect setting inside exciter or optional main/alt exciter switcher.
Exciter fault reported by transmitter is simply passed through from exciter
and main/alt switcher via exciter interface cable. Exciter and main/alt
switcher should be configured so at to present a ground / 0V on pin 6 of
interface cable whenever their status is faulted. Consult separate exciter or
exciter switcher manual for instructions on how to proceed.
Possible emergency exciter switchover has occurred. Exciter switcher
switchover fault status is mapped to appear as an exciter fault.
Transmitter does not
respond to on, off,
raise, or lower
commands from
remote control
Possible REMOTE DISABLED status. Open amplifier front door and
inspect status of REMOTE ENABLED / DISABLED toggle switch on
controller board (reverse side of front door). Switch should be in ENABLED
position to enable remote control of the amplifier chassis.
Difficulty interfacing
to remote control
system
Verify correct signaling levels are being presented to transmitter on
REMOTE CONTROL connections at amplifier rear panel and/or terminals of
remote terminal board on larger model transmitters.
METERING: transmitter outputs analog voltage 0-2V with 1K ohm source
impedance.
COMMANDS: user presents ground to issue command, open circuit to not
issue command. Do not introduce an external voltage (+5V, +12V, etc) into
these pins!
STATUS: transmitter presents ground to indicate a true condition, open
circuit to indicate a false condition. User connects an external voltage 0-
24V with suitable pull-up resistor to limit current to 100 mA or less.
Single PA chassis
does not respond to
on/off commands
when other PA chassis
on/off buttons are
pressed (ZX7.5 or
higher power models
only)
Possible remote mode disabled on one or more PA chassis. Open amplifier
chassis front door and inspect status of REMOTE ENABLED / DISABLED
toggle switch on controller board (reverse side of front door). Switch should
be in ENABLED position.
Possible system bus disconnected. Verify all connections of system interface
bus. (HD15 cables)
Summary of Contents for ZX2500
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Page 6: ...MRH 2 888 2595 001 12 20 11 WARNING Disconnect primary power prior to servicing...
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