Tektronix instruction manual Checks and Adjustments, 1705A Spectrum Monitor Iii

Table of Contents

Ramp Generator	4-7
Gain Control (SPAN/DIV)	4-7
Sweep Shapers	4-7
Bright-Up Generator	4-8
Z-Axis Control	4-9
Deflection Amplifiers
Diagram 4	4-9
Buffers	4-9
Vertical Deflection Amplifier	4-10
Horizontal Deflection Amplifier	4-10
Microprocessor
Diagram 5	4-11
Microprocessor	4-11
Readout	4-12
Trace Rotate	4-12
Graticule Lights	4-12
Front Panel
Diagram 6	4-12
Indicators, Controls, and Switches	4-12
+18 Volt Supply	4-13
Low Voltage Power Supply
Diagram 7	4-14
Line Rectifier and Filter	4-15
Pulse Width Modulator	4-15
Output Filters	4-16
Error Amplifier	4-16
Feedback Transformer Driver and Peak Detector	4-16
Output Under-Voltage Shutdown	4-16
High Voltage Power Supply
Diagram 8	4-17
HV Osc and Error Amp	4-17
Power Supply Outputs	4-18
Focus Amplifier	4-18
Grid Drive Circuit	4-18
Z-Axis Amplifier	4-18

Checks and Adjustments

Section 5 Checks And Adjustments	5-1
Recommended Equipment List	5-1
Electrical Instruments	5-1
Auxiliary Equipment	5-2
Performance Check	5-3
Short-Form Procedure	5-3
Long Form Procedure	5-5
Adjustment Procedure	5-17

1705A Spectrum Monitor iii