Filter
Top Products
6
Installing the Power Board ............................................................................................................................................. 58
Installing the Bias Board ................................................................................................................................................ 58
Installing the Front Panel Board and Front Panel Assembly .......................................................................................... 59
Installing the Fan ............................................................................................................................................................ 59
Installing the Cover......................................................................................................................................................... 59
Theory of Operation............................................................................................................................................................. 61
AC Input and Bias Supplies................................................................................................................................................ 61
Microprocessor Circuits...................................................................................................................................................... 61
CV/CC DACs ..................................................................................................................................................................... 61
CV Amplifier...................................................................................................................................................................... 63
CC Amplifier ...................................................................................................................................................................... 63
OR Gates ............................................................................................................................................................................ 63
Pulse-Width Modulator, FETS, and Isolation Transformer................................................................................................ 64
Downprogrammer Circuit................................................................................................................................................... 64
Readback Multiplexer......................................................................................................................................................... 64
OV Circuit .......................................................................................................................................................................... 65
Replacement Parts................................................................................................................................................................ 67
Diagrams ............................................................................................................................................................................... 83
Schematic Sheets ................................................................................................................................................................ 83
Component Location Diagrams .......................................................................................................................................... 83
Schematic Notes ................................................................................................................................................................. 84
Manual Backdating ............................................................................................................................................................ 97
Index .................................................................................................................................................................................... 99