
TABLE OF CONTENTS B-70315EN/02
c-2
3.2.3.2 Details of safety circuit...................................................................................... 68
3.2.4 Inter-unit Connections............................................................................................73
3.2.4.1 Vacuum tube connection ................................................................................... 74
3.2.4.2 Power cable connection ..................................................................................... 74
3.3 DETAILS OF CHECKING............................................................................ 75
3.3.1 Power Supply Checking .........................................................................................75
3.3.1.1 Checking the power supply ............................................................................... 75
3.3.1.2 Phase rotation .................................................................................................... 75
3.3.1.3 Setting the frequency of the power supply of the hour meter............................ 75
3.3.1.4 Measurement of voltage of DC power supply unit............................................ 75
3.3.1.5 Checking the jumper pins .................................................................................. 77
3.3.1.6 Checking the IF PCB signals............................................................................. 77
3.3.2 External Laser Gas Piping Leakage Check (Clamp Test) ......................................78
3.3.3 Checking Cooling Water ........................................................................................79
3.3.4 Check for Leakage within the Oscillator................................................................80
3.3.5 Locating Internal Leakage......................................................................................81
3.3.6 Discharge Aging.....................................................................................................82
3.3.7 Oscillation Characteristics......................................................................................83
3.3.8 Discharge Margin Check........................................................................................83
3.3.9 Power Supply Margin Check (Pulse Check) ..........................................................84
3.3.10 Beam Mode Check .................................................................................................85
3.4 PREPARATION PRIOR TO SHIPMENT ..................................................... 87
3.4.1 Packing for Transportation .....................................................................................88
3.4.2 Removing Cooling Water.......................................................................................89
4 MAINTENANCE .................................................................................... 90
4.1 DAILY INSPECTION ................................................................................... 91
4.2 PERIODIC MAINTENANCE ........................................................................ 92
4.3 DETAILS OF MAINTENANCE..................................................................... 93
4.3.1 Turbo Blower Oil ...................................................................................................96
4.3.2 Exhaust Pump Oil...................................................................................................98
4.3.3 Exhaust Pump Filter ...............................................................................................99
4.4 MAINTENANCE PARTS............................................................................ 100
5 TROUBLESHOOTING ........................................................................106
5.1 TROUBLESHOOTING PROCEDURE....................................................... 107
5.2 RESPONDING TO ALARM MESSAGES ON THE SCREEN .................... 108
5.3 MAJOR FAULTS ....................................................................................... 132
5.3.1 Laser Power Supply Alarm Display .....................................................................132
5.3.2 Power Supply Cannot Be Switched Off Using CRT/MDI Switch.......................133