12/20/11 888-2595-001 5-41
WARNING: Disconnect primary power prior to servicing.
Section 5 Maintenance and Alignments
ZX Series
5.5.16 AC Mains Filter (476-0528-000 or 609-0125-000)
• No user adjustments.
• Cannot be repaired in field due to high voltage potting compound inside case.
5.5.17 Front Panel Filter (943-5567-408)
• All ZX transmitters ship with spare filter media.
• Never install a wet or damp filter in transmitter.
5.5.18 2X IPA Splitter (901-0203-591)
• No user adjustments.
5.5.19 Input 3dB Attenuator (971-0023-050)
• No user adjustment.
• Apply thin layer of heatsink compound before mounting attenuator to chassis
wall.
5.5.20 System Metering Assembly
• Where possible, record all valid power readings from old metering assembly
and calibrate readings to same values upon installing new assembly.
• Forward and reverse meter calibration generally required. Consult
calibration procedures earlier in this manual section.
5.5.21 Output Combiner (3dB Hybrid)
• No user adjustments.
• Some minor recalibration of system readings may be required due to minor
differences in output couplers.
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