TABLE OF CONTENTS, continued
SECTION TITLE PAGE
6B DIGITAL CONTROLLER 6B-1
6B-1. DIGITAL CONTROLLER BLOCK DIAGRAM 6B-1
6B-2. DIGITAL CONTROLLER CIRCUIT DESCRIPTION (A13) 6B-1
6B-3. Microprocessor 6B-1
6B-4. Memory 6B-1
6B-5. Memory Control 6B-3
6B-6. Front Panel Interface 6B-3
6B-7. IEEE-488 Interface 6B-3
6B-8. Attenuator Control Interface 6B-3
6B-9. Module I/O 6B-3
6B-10. Status and Control 6B-4
6B-11. DIGITAL CONTROLLER TROUBLESHOOTING 6B-4
6B-12. RF Control 6B-4
6B-13. Microprocessor Kernel 6B-5
6B-14. Clock 6B-5
6B-15. Power-On Reset 6B-5
6B-16. Unused Microprocessor Inputs 6B-5
6B-17. Bus Error 6B-5
6B-18. Interrupts 6B-5
6B-19. Microprocessor Bus 6B-6
6B-20. Address Decoder 6B-6
6B-21. I/O Diagnostic Tests 6B-7
6B-22. CALIBRATION/COMPENSATION MEMORY 6B-8
6B-23. Calibration/Compensation Memory Status 6B-8
6B-24. Repairing Calibration/Compensation Memory Checksum Errors .. 6B-9
6B-25. Calibration/Compensation Memory Origin Status 6B-9
6B-26. FRONT PANEL CIRCUIT DESCRIPTION 6B-9
6B-27. Display PCA 6B-10
6B-28. Data Communications 6B-10
6B-29. Display Filament Voltage 6B-10
6B-30. Bright-Digit Effect 6B-10
6B-31. Switchboard Interface 6B-10
6B-32. Remote Footswitch 6B-10
6B-33. Edit Knob Interface 6B-11
6B-34. Display Blanking 6B-11
6B-35. Operate/Standby Selection 6B-11
6B-36. FRONT PANEL TROUBLESHOOTING 6B-11
6B-37. Display and Controls 6B-11
6C FREQUENCY SYNTHESIS 6C-1
6C-1. FREQUENCY FAULT TREE 6C-1
6C-2. SUB-SYNTHESIZER BLOCK DIAGRAM 6C-1
6C-3. SUB-SYNTHESIZER CIRCUIT DESCRIPTION (A4) 6C-1
6C-4. SUB-SYNTHESIZER TROUBLESHOOTING 6C-9
6C-5. SUB-SYNTHESIZER ADJUSTMENTS 6C-13
6C-6. Steering DAC Full Scale Adjustment 6C-13
6C-7. Lower Clamp Adjustment, R99 6C-13
6C-8. Upper Clamp Adjustment, R98 6C-14
6C-9. SSB Mixer LO Drive Adjustment, R106 6C-14
6C-10. 10-kHz Notch Adjustment, L56 6C-15
IV
(continued on page v)
To Next Page
Loading...
