AR 10051217, Operating And Service Manual

Page: 17 / 90

Model 2000S1G2z8
iii
4. MAINTENANCE ............................................................................................... 55
4.1 General Maintenance Information ........................................................................ 55
4.2 Disassembly Procedure ........................................................................................ 55
4.3 Troubleshooting ................................................................................................... 56
4.3.1 General - Reading Faults ...................................................................................... 57
4.3.2 The Unit Cannot Be Operated Remotely.............................................................. 57
4.3.3 Thermal Fault (Diagram No 10051819,10051526) .............................................. 57
4.3.4 Interlock Fault (Schematic 10051819,10051526) ................................................ 58
4.3.5 Power Supply Faults (Schematic 10051819,10051526) ...................................... 58
4.3.6 Amplifier Faults (Schematics 10051819,10051526) ............................................ 59
4.3.7 ALC Fault ............................................................................................................. 59
4.3.8 Low or No Power Output (DC Tests) (Diagram 10051819,10051526) ............... 59
4.3.9 Low or No Power Output (RF Test) (Diagram 10051819,10051526) ................. 60
Appendix A. Installing Software Upgrades ................................................................ 63
FIGURES
1-1 2000S1G2z8 AC Line Cord Installation ................................................................ 3
2-1 Model 2000S1G2z8 Front Panel ............................................................................ 8
2-2 Model 2000S1G2z8 Rear Panel ............................................................................. 9
4-1 Typical Response @ -20 dBm Input .................................................................... 60
4-2 Typical Response @ 0 dBm Input ........................................................................ 61