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Harris ZX5000 - Page 16

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Table of Contents (Continued)
2
System Interconnect (multi-PA chassis
transmitters) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Command Sharing. . . . . . . . . . . . . . . . . . . . . . . 4-21
Power Control Sharing . . . . . . . . . . . . . . . . . . . 4-23
Section 5
Maintenance and Alignments
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
General Maintenance Guidelines. . . . . . . . . . . . . . 5-2
Personnel Training . . . . . . . . . . . . . . . . . . . . . . . 5-2
Recommended Tools and Equipment . . . . . . . . . 5-3
Spares Holding . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . 5-5
Transmitter Logbook. . . . . . . . . . . . . . . . . . . . . . 5-6
Maintenance Logbook. . . . . . . . . . . . . . . . . . . . . 5-6
Routine Maintenance . . . . . . . . . . . . . . . . . . . . . 5-7
MTBF Estimates . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Basic Maintenance Procedures . . . . . . . . . . . . . . . 5-8
Power Amplifier (PA) Module Swap
Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Power Supply (PS) Module Swap Procedure . . 5-10
Air Filter Replacement Procedure. . . . . . . . . . . 5-11
PA Module Cleaning Procedure . . . . . . . . . . . . 5-12
Advanced Maintenance Procedures. . . . . . . . . . . 5-13
Advanced Functional Check . . . . . . . . . . . . . . . 5-13
Forward Power Meter Calibration . . . . . . . . . . 5-16
Precision Directional Coupler . . . . . . . . . . . . 5-17
Reverse Power Meter Calibration. . . . . . . . . . . 5-18
Set Transmitter Power Level (Case 1:
internal transmitter APC control) . . . . . . . . . . . 5-19
Set Transmitter Power Level (Case 2:
exciter APC control with FlexStar HDX). . . . . 5-21
APC Setup for Multiple PA Chassis . . . . . . . . . 5-23
Set User Reverse Power Foldback Threshold
(ZX2500 / ZX3750 / ZX5000). . . . . . . . . . . . . 5-24
Set User Reverse Power Foldback Threshold
(ZX7.5, ZX10) . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
Periodic Cleaning and Inspection. . . . . . . . . . . 5-26
Service one PA chassis while transmitter is
on air (ZX7.5/ZX10). . . . . . . . . . . . . . . . . . . . . 5-28
Check balance by disconnecting load
(ZX7.5/ZX10) . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28
Special Part Replacement Notes . . . . . . . . . . . . . 5-30
PA Module (992-9992-041G or otherwise) . . . 5-30
PA Amplifier Assembly (PWA, PA)
(992-9992-021G or otherwise) . . . . . . . . . . . . . 5-30
PS Module (736-0445-000) . . . . . . . . . . . . . . . 5-32
Transmitter Controller PCB (901-0203-541) . . 5-33
PA Backplane PCB (901-0203-381). . . . . . . . . 5-33
IPA Backplane PCB (901-0203-581) . . . . . . . . 5-33
PS Interface PCB (901-0203-531) . . . . . . . . . . 5-33
RF Output Assembly
(971-0023-026/027/028). . . . . . . . . . . . . . . . . . 5-34
Output Assembly Ballast Load
(700-1225-000). . . . . . . . . . . . . . . . . . . . . . . . . 5-38
RF Splitter (901-0203-511/561/571) . . . . . . . . 5-39
I/O Filter PCB (901-0203-551). . . . . . . . . . . . . 5-40
Web Remote PCB (901-0203-391T) . . . . . . . . 5-40
Fan Monitor PCB (901-0203-441) . . . . . . . . . . 5-40
Cooling Fans (430-0458-000). . . . . . . . . . . . . . 5-40
Front Panel Multimeter (632-1201-000). . . . . . 5-40
AC Mains Filter
(476-0528-000 or 609-0125-000). . . . . . . . . . . 5-41
Front Panel Filter (943-5567-408) . . . . . . . . . . 5-41
2X IPA Splitter (901-0203-591) . . . . . . . . . . . . 5-41
Input 3dB Attenuator (971-0023-050) . . . . . . . 5-41
System Metering Assembly . . . . . . . . . . . . . . . 5-41
Output Combiner (3dB Hybrid) . . . . . . . . . . . . 5-41
2.5 kW RF Load . . . . . . . . . . . . . . . . . . . . . . . . 5-42
Section 6
Troubleshooting
Contacting Harris Service . . . . . . . . . . . . . . . . . . . 6-1
Troubleshooting Table. . . . . . . . . . . . . . . . . . . . . . 6-2
Section 7
Parts List
ZX5000 Replaceable Parts List. . . . . . . . . . . . . . . 7-2
ZX10 Replaceable Parts List. . . . . . . . . . . . . . . . . 7-7
Appendix A - FM Web Remote
Option
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
General Product Description. . . . . . . . . . . . . . . . A-1
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3
Internet Security . . . . . . . . . . . . . . . . . . . . . . . . .A-3

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