Tektronix 314 - Page 4

314 Service
TABLE OF CONTENTS (cont)
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SECTION 3 THEORY OF OPERATION (cont) Page
Trigger Source 3-9
Internal 3-9
Source and Coupling 3-9
Trigger Preamp and Sweep Generator
3-10
Trigger Preamplifier 3-10
Sweep Generator 3-10
Normal Triggered Mode 3-13
Auto-Triggered Mode 3-13
Single Sweep Mode 3-13
Sweep Magnification and Positioning 3-14
Ext Horiz 3-14
General 3-14
Input Stage 3-14
Output Stage 3-14
Horizontal Amplifier 3-14
General 3-14
Emitter-Follower Amplifier 3-1 4
Common-Base Amplifier 3-14
Output Amplifier and Output Inverter Amplifier 3-14
Storage 3-15
General 3-15
Storage Tube 3-15
Flood Guns and Collimation Electrodes 3-17
Target-Control Amplifier 3-17
Erase Generator 3-1 7
Enhance Generator 3-18
Auto Erase 3-1 8
Auto-Erase Generator 3-18
Sweep Reset Delay Multivibrator 3-18
Integrate 3-19
Power Supply 3-19
General 3-19
AC Power Input 3-19
Power Source Selector 3-20
Series Regulator 3-20
DC-to-DC Converter 3-20
Regulator Protection 3-20
Auto Turn Off 3-20
Low-Line Indicator 3-20
+6 V and -6 V Regulator
3-20
H V and Unblanking 3-20
General 3-20
High Voltage and
CRT 3-20
Blanking and Unblanking 3-22
SECTION 4 MAINTENANCE
Preventive Maintenance 4-1
Cleaning 4-1
Visual Inspection 4-1
Semiconductor Checks 4-1
Recalibration 4-1
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