User's Manual

G3S-800-180-029 Installation & Service Manual
 Copyright Powerwave Technologies, Inc., April 2002. All rights reserved
044-05112 Rev. A iv April 2002
Section 5
Maintenance
5-1 Introduction.......................................................................................................................................................... 5-1
5-2 Periodic Maintenance....................................................................................................................................... 5-1
5-3 Test Equipment Required For Test .................................................................................................................. 5-1
5-4 Clean Air Inlets/Outlets..................................................................................................................................... 5-2
5-5 Performance Test ............................................................................................................................................... 5-2
5-5.1 Amplifier System Performance Test............................................................................................................... 5-2
5-5.1.1 Amplifier IMD Test..............................................................................................................................................5.3
5-5.1.2 Gain Test............................................................................................................................................................... 5-3
5-5.1.3 Harmonic Test ..................................................................................................................................................... 5-3
5-5.1.4 Spurious Emissions Test................................................................................................................................... 5-4
5-5.1.5 Input Return Loss................................................................................................................................................ 5-4
5-6 Field Replacement Parts and Modules.......................................................................................................... 5-5
5-6.1 G3S-800-180-029 Power Amplifier Module................................................................................................... 5-5
5-6.2 Cooling Fans ........................................................................................................................................................ 5-6
Section 6
Troubleshooting
6-1 Introduction.......................................................................................................................................................... 6-1
6-2
Troubleshooting.................................................................................................................................................. 6-1
6-2.1
DC Voltage Indicators Not Illuminated.......................................................................................................... 6-1
6-2.2
OVER PWR Illuminated or Blinking................................................................................................................ 6-1
6-2.3
HIGH TEMP Illuminated .................................................................................................................................... 6-2
6-2.4
VSWR Illuminated .............................................................................................................................................. 6-2
6-2.5
DC FAIL Illuminated............................................................................................................................................ 6-3
6-2.6
FAN FAIL Illuminated......................................................................................................................................... 6-3
6-2.7
LOOP FAIL Illuminated....................................................................................................................................... 6-3
6-2.8
LOW PWR Illuminated....................................................................................................................................... 6-3
6-2.9
LPA DISABLE Illumunated................................................................................................................................ 6-3
6-3
Return for Service Procedures ........................................................................................................................ 6-4
6-3.1
Obtaining an RMA .............................................................................................................................................. 6-4
6-3.2
Repackaging for Shipment ............................................................................................................................... 6-4
List of Illustrations
Figure
No.
1-1 G3S-800-180-029 Front and Side View ........................................................................................................... 1-3
2-1 G3S-800-180-029 Rear View ............................................................................................................................. 2-4
2-2 DC and Logic Connector.................................................................................................................................... 2-4
2-3 Amplifier RF Connector ..................................................................................................................................... 2-5
3-1 G3S-800-180-029 Amplifier Module RF Control Indicators........................................................................ 3-1
4-1 G3S-800-180-029 Power Amplifier Module Functional Block Diagram ................................................. 4-2
5-1 Amplifier System Test Setup Diagram........................................................................................................... 5-3
5-2 Amplifier Spring Clip Location ........................................................................................................................ 5-5