Crown FM1000A User Manual page 4

4.2 PS1000 Power Supply ...................................................................................... 4-4
4.2.1 AC Input Board ............................................................................................. 4-5
4.2.2 PFC (Power Factor Correcting) Switching Board .......................................... 4-5
4.2.3 DC Output Board .......................................................................................... 4-6
4.2.4 Cooling Fans ................................................................................................. 4-6
Section 5-Troubleshooting
5.1 Troubleshooting Flow Chart Analysis ................................................................ 5-2
5.2 Digital Multimeter Parameters .......................................................................... 5-3
5.2.1 In Ref (Input Drive Reference) ...................................................................... 5-3
5.2.2 SWR (Standing Wave Ratio) ........................................................................ 5-3
5.2.3 ALC (Automatic Level Control) ..................................................................... 5-3
5.2.4 Power Out .................................................................................................... 5-3
5.2.5 PA Temp ....................................................................................................... 5-4
5.2.6 PA Voltage .................................................................................................... 5-4
5.2.7 Tot Current ................................................................................................... 5-4
5.2.8 PA1-8 ........................................................................................................... 5-4
5.3 Fault Indicators ................................................................................................. 5-5
5.3.1 Antenna ........................................................................................................ 5-5
5.3.2 RF Drive ........................................................................................................ 5-5
5.3.3 PA Temp ....................................................................................................... 5-5
5.3.3.1 Potential Causes for Non-functioning Cooling Fans .............................. 5-5
5.3.4 PA DC ........................................................................................................... 5-6
5.3.5 Multiple Indicators........................................................................................ 5-6
Section 6-Reference Drawings
6.1 Views ................................................................................................................ 6-2
6.2 Diagrams and Schematics ................................................................................ 6-3
Section 7-Service and Support
7.1 Service .............................................................................................................. 7-2
7.2 24-Hour Support .............................................................................................. 7-2
7.3 Spare Parts ....................................................................................................... 7-2
Glossary
Index
iv