Tektronix 1751 Manuals

Manuals and User Guides for Tektronix 1751. We have 1 Tektronix 1751 manual available for free PDF download: Instruction Manual

Tektronix 1751 Instruction Manual (114 pages)

WAVEFORM/VECTOR MONITORS

Brand: Tektronix | Category: Monitor | Size: 4 MB

Preface
3
Part I Operator's Information
3
Table of Contents
4
Accessories
4
Specification
4
Introduction
6
List of Illustrations
7
Operators Safety Summary
9
Operator's Information
11
Sweep Rates
11
Vector Mode
12
Typical SCH Phase Measurement Displays
12
Combination Modes
12
RGB/YRGB Display
13
Safety Standards
13
Specification
14
Electrical Characteristics
14
Environmental Characteristics
23
Physical Characteristics
24
Controls, Indicators, and Connectors
25
Front Panel Controls and Indicators
25
Switch
25
Operator's Checkout Procedure
29
Color Bar Signal
31
Color Bar Signal Displayed with FLAT Response
31
Chroma Filter
31
Color Bar Signal Displayed in each of the
32
Display of Color Bar Vectors
33
The +V Display of the PAL Color Bar Signal (1751 Only)
34
Application Information
35
PAL Signal Displayed in the V-AXIS Mode
35
Signal Degradations
36
SCH Phase
36
Signal Timing
37
Graticules
37
Waveform Graticule
37
NTSC and CCIR Horizontal Scales
37
An Example of SCH Phase Extrapolation
37
An SCH Phase Measurement of a Signal con
37
NTSC Vertical Scales (1750 Only)
38
CCIR Vertical Scales (1751)
38
CCIR K Factor Scales (1751)
38
Waveform Portion of the 1750-Series
38
Vector Graticules
39
NTSC Vector Targets (1750)
39
PAL Vector Targers
39
Bandwidth Calibration Aid
39
Interpreting the Vector Graticule
39
Differential Gain and Phase Measurements
40
Differential Gain/Differential Phase Scales
40
Interpreting a Differential Gain Measurement
40
Interpreting a Differential Phase
40
R-Y (V-Axis) Scale
41
Waveform Mode Differential Gain Measurements
41
SCH Phase Measurements
41
Matching SCH Timing
41
Typical SCH Phase Display
41
Vector Display Along with the SCH Phase
41
Warning
42
The Following Servicing Instructions
42
You Are Qualified to Do So. Refer to Op
42
Part II Service Information
43
Service Safety Summary
43
Packaging
43
Accessories
43
Electrical Installation
43
Mains Frequency and Voltage Ranges
43
Power Cord Options
44
Mains Conversion
44
Trace Rotation Adjustment
44
The Various Power Cord Options Offered for the 1750-Series Waveform/Vector Monitor
44
Changing Line Selector Switch
45
Trace Rotation Adjustment Location
46
Remote Connections
47
Remote Front Panel
47
Remote Front-Panel Switching
48
Remote Enable
49
Remote Line and Field Selection
49
NTSC Remote Line and Field Selection
50
PAL Remote Line and Field Selection
51
Operational Changes
52
Altering Line Selector Operation (Internally)
53
Mechanical Installation
53
Rackmounting
53
Cooling
53
Tektronix Part Numbers
54
Optional Installation Accessories
54
Theory of Operation
56
Block Description
56
Detailed Circuit Description
57
Vertical Board (A3)
57
Video Input
57
Inputs
57
Calibrator
58
Line Select Bright-Up
58
Switching Logic
58
Filters
58
Variable Gain Amp
59
Chroma Amp
59
Vertical Output
59
DC Restorer
59
DC-Restored Amplifier
59
Vertical Output Switch
59
Vertical Output Amplifier
60
Power Supplies
60
Horizontal Board (A4)
60
Sync Clamp
60
Sync Reference Switching
60
SCH Locate (1 and 2)
61
Power Supplies
61
Sweep Generator and Horizontal Output
61
Ramp and Mag Switching
61
Sweep Generators
61
RGB/YRGB Staircase Input
61
Horizontal Mag Amp
62
Offscreen Blanking
62
Horizontal Output Amplifier
62
Demodulator Board (A5)
62
Subcarrier Regenerator
62
Phase Lock Loop Basic Operation
62
Subcarrier Oscillator
63
Block Diagram of the Phase Lock Loop
63
Subcarrier Oscillator Equivalent Circuit
63
Burst Amplifier
64
Burst Demodulator
64
Simplified Schematic Diagram of the Burst Demodulator
64
Phase Lock Control
65
PAL Phase Lock Control (1751 Only)
65
Chroma Source Switches
66
Chroma Amplifier
66
Chrominance Clamp
66
Center Dot Blanking
66
Power Supplies
66
Demodulator
66
Axis Switcher
66
Chroma Demodulators
67
Demodulator Output Amplifiers
67
SCH Rephase
67
SCH Logic Board (A9)
67
SCH Vcxo's
68
SCH I/O Latch
68
SCH Intra-Line Decoding
68
Reference Clock Generator
68
Reference I/O Latch
68
Power Supplies
69
SCH Logic
69
Reference Intra-Line Decoding
69
Line Counter and Intra-Frame Decoding
69
Sweep Gating
69
Line Select
69
Color Frame Identification
69
Demodulator Source Selection
69
Interface and HV Power Supply
70
(A1); CRT Control (A7); Front
70
Power Supply (A6)
70
HV and CRT
70
High Voltage Supply
70
CRT Alignment
71
Scale Illumination Control
71
Intensity Control
71
Z Axis Output
71
CRT Controls (A6)
71
Front-Panel Signal Controls
71
Interface and Remote
71
Interface
71
Remote Control
71
Low Voltage Power Supply (A6)
72
Input and Line Rectifier
72
Switching Primary
72
Pulse Width Modulation
73
Start up
73
Filtered Outputs
73
Checks and Adjustments
74
Recommended Equipment List
74
Electrical Instruments
74
Auxiliary Equipment
75
RGB Parade Display Test Connector
76
Performance Check
78
Performance Check Procedure
78
Using Triggered Sinewaves to Make Timing
80
Checking Modulated Sine-Squared Pulse Response
83
Adjustment Procedure
88
Short-Form Procedure
88
Detailed Adjustment Procedure
90
1750-Series Setup
90
Using Triggered Sinewaves to Make Timing
92
Maintenance
97
Preventive Maintenance
99
Cleaning
99
Visual Inspection
99
Static-Sensitive Components
99
Performance Checks and Readjustment
100
General Troubleshooting
100
Troubleshooting Aids
100
Relative Susceptibility to Static Discharge Damage
100
General Troubleshooting Technique
101
Using the 1750-Series Instruction Manual Fold-Out
101
Troubleshooting Procedure
103
1750-Series Setup
103
Problem Symptom Survey
103
Detailed Fault Isolation Procedures
105
Horizontal Board (A4)
105
Vertical Board (A3)
105
Demodulator Board (A5)
106
Unlocked Phase-Locked Loop Error Voltage
106
SCH Logic Board (A9)
107
Other Functions
108
1750 (NTSC) Signature Table
108
1751 (PAL) Signature Table
108
Corrective Maintenance
109
Obtaining Replacement Parts
109
Selected Components
109
Mechanical Disassembly/Assembly
109
Plug-In Circuit Board Removal
110
Front-Panel Assembly (A8) Removal
110
Graticule Light Removal
110
Separating the Instrument
110
Replacing the BNC Input Assembly (A2)
111
Separating the Instrument
111
LV Power Supply Board (A6) Removal
112
Interface and HV Supply Board (A1) Removal
112
Removing CRT Control Board (A7)
112
CRT Removal
112
Location of the Four Screws Securing the Crt Assembly to the Front Panel
113
Repackaging
114
Recommended Service Items
114

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Tektronix 1751 Instruction Manual (114 pages)

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