6. COMPONENT FUNCTIONS AND PARTS ......................................................................... 6-1
6.1 Theory of Operation............................................................................................................6-1
6.2 Measuring System ...............................................................................................................6-2
6.3 Microprocessor System .......................................................................................................6-3
6.4 Component Parts .................................................................................................................6-4
APPENDIX A: IEC 601.1, UL 2601.1 AND VDE 0751 TESTING ................................................ A-1
A.1 Classification of Equipment ............................................................................................... A-1
A.2 Tests on Mains Powered Class 1 & 2 Equipment According To IEC 601.1/UL 2601.1 ... A-4
A.3 Tests on Internally Powered Equipment According To IEC 601.1/UL 2601.1 ............... A-13
A.4 System Tests Based on IEC 601.1/UL 2601.1 ................................................................. A-15
A.5 Tests According To VDE 0751-1, 10/1990 ..................................................................... A-16
APPENDIX B: DIAGRAMS.............................................................................................................. B-1
Mains & EUT Connections Schematic Diagram ............................................................................ B-3
Measuring Board Component Location Layer 1 ............................................................................. B-4
Measuring Board Component Location Layer 2 ............................................................................. B-5
Measuring System Schematic Diagram Part 1 (Measuring Preparation) ....................................... B-6
Measuring System Schematic Diagram Part 2 (High Voltage Interface) ....................................... B-7
Measuring System Schematic Diagram Part 3 (High Voltage Logic) ............................................ B-8
Measuring System Schematic Diagram Part 4 (High Voltage Drivers) ......................................... B-9
Measuring System Schematic Diagram Part 5 (Applied Part Matrix) ......................................... B-10
Measuring System Schematic Diagram Part 6 (Measurement Matrix) ........................................ B-11
Measuring System Schematic Diagram Part 7 (Program Amplifier and Lowpass) ............................. B-12
Measuring System Schematic Diagram Part 8 (Relay Drivers) ................................................... B-13
Microprocessor Board Component Location ................................................................................ B-14
Keypad Board Component Location ............................................................................................ B-15
Microprocessor System Schematic Diagram Part 1 (QA-90) ...................................................... B-16
Microprocessor System Schematic Diagram Part 2 (Integrated Keypad) .................................... B-17
Microprocessor System Schematic Diagram Part 3 (CPU) ......................................................... B-18
Microprocessor System Schematic Diagram Part 4 (CPU) ......................................................... B-19
Microprocessor System Schematic Diagram Part 5 (Printer and Display Interface) ........................... B-20
Microprocessor System Schematic Diagram Part 6 (Series and Keypad Interface) ............................ B-21
APPENDIX C: ERROR REPORT FORM, QA-90 ......................................................................... C-1
APPENDIX D: SUGGESTION FORM, QA-90 ............................................................................... D-1
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