Equipment information
Tektronix TV110 CableScout Analyzer
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Model:
TV110 CableScout
Date:
1997
Category:
Group:
Description:
Metallic Time-Domain Reflectometer
Information
The Tektronix TV110 CableScout MTDR is specifically intended for technicians
and troubleshooting experts in the outside-plant cable TV and other coaxial cable test environments. The CableScout’s uses include: fault identification, fault location, cable installation, and cable maintenance. The TV110 CableScout is easy to use, high in accuracy, and will fully characterize coaxial cable up to
6,000 feet in length.
Manual Type:
Service Manual
Pages:
92
Size:
655.69 Kbytes (671429 Bytes)
Language:
english
Revision:
Manual-ID:
070-8815-02
Date:
1997 07 01
Quality:
Electronic document, no scan, very well readable.
Upload date:
2019 09 15
MD5:
5b223d779c106e03d35a4cad844d5112
Downloads:
361
Information
1 Safety Instructions
...
1-1
1.1
Introduction ...
1-3
1.2 Safety
Precautions ...
1-3
1.3 Caution and Warning
Statements ...
1-3
1.4
Symbols ...
1-3
1.5 Impaired Safety
...
1-4
1.6 General Safety
Information ...
1-4
2 Characteristics
...
2-1
2.1
Introduction ...
2-3
2.2 Dual Input
Oscilloscope ...
2-3
2.2.1 Isolated Inputs A and B
(Vertical) ...
2-3
2.2.2 Horizontal
...
2-4
2.2.3 Trigger and Delay
...
2-4
2.2.4 Automatic Connect&View Trigger
... 2-5
2.2.5 Edge Trigger
...
2-5
2.2.6 Isolated External Trigger
...
2-5
2.2.7 Video
Trigger ...
2-5
2.2.8 Pulse Width
Trigger ...
2-5
2.2.9 Continuous Auto
Set ...
2-6
2.2.10 Automatic Capturing Scope Screens
... 2-6
2.3 Automatic Scope
Measurements ...
2-6
2.3.1
General ...
2-6
2.3.2 DC Voltage
(VDC) ...
2-6
2.3.3 AC Voltage
(VAC) ...
2-6
2.3.4 AC+DC Voltage (True
RMS) ...
2-7
2.3.5 Amperes
(AMP) ...
2-7
2.3.6
Peak ...
2-8
2.3.7 Frequency (Hz)
...
2-8
2.3.8 Duty Cycle (DUTY)
...
2-8
2.3.9 Pulse Width
(PULSE) ...
2-8
2.3.10 Vpwm (C versions
only) ...
2-8
2.3.11 Power
...
2-9
2.3.12 Phase
...
2-9
2.3.13 Temperature (TEMP)
...
2-9
2.3.14 Decibel
(dB) ...
2-9
2.4 Meter
...
2-10
2.4.1 Meter Input
...
2-10
2.4.2 Meter
Functions ...
2-10
2.5 DMM Measurements on Meter
Inputs ...
2-10
2.5.1
General ...
2-10
2.5.2 Ohms (Ω)
...
2-10
2.5.3 Continuity
(CONT) ...
2-10
2.5.4
Diode ...
2-11
2.5.5 Temperature
(TEMP) ...
2-11
2.5.6 DC Voltage
(VDC) ...
2-11
2.5.7 AC Voltage
(VAC) ...
2-11
2.5.8 AC+DC Voltage (True
RMS) ...
2-11
2.5.9 Amperes
(AMP) ...
2-12
2.6 Recorder
...
2-12
2.6.1 TrendPlot (Meter or
Scope) ...
2-12
2.6.2 Scope Record
...
2-12
2.7 Zoom, Replay and
Cursors ...
2-13
2.7.1
Zoom ...
2-13
2.7.2 Replay
...
2-13
2.7.3 Cursor Measurements
...
2-13
2.8
Miscellaneous ...
2-13
2.8.1
Display ...
2-13
2.8.2 Power
...
2-13
2.8.3 Probe
Calibration ...
2-14
2.8.4
Memory ...
2-14
2.8.5
Mechanical ...
2-14
2.8.6 Optical Interface
Port ...
2-14
2.9 Environmental
...
2-14
2.10
Safety ...
2-15
2.11 10:1 Probe VPS200
...
2-17
2.11.1 Safety
...
2-17
2.11.2 Electrical
specifications ...
2-17
2.11.3
Environmental ...
2-17
2.12 Electromagnetic
Immunity ...
2-18
3 Circuit Description
...
3-1
3.1
Introduction ...
3-3
3.2 Block Diagram
...
3-3
3.3 Start-up Sequence, Operating
Modes ...
3-7
3.4 Detailed Circuit
Descriptions ...
3-9
3.4.1 Scope Channel A - Scope Channel B
... 3-9
3.4.2 Meter/Ext Trigger
Channel ...
3-12
3.4.3 Sampling&Triggering
(S-ASIC) ...
3-15
3.4.4 S-ASIC supply
...
3-19
3.4.5 ADC’s
...
3-19
3.4.6 Digital Control
...
3-20
3.4.7 LCD Control
...
3-22
3.4.8 Power
...
3-23
3.4.9 Slow ADC, RS232 Serial Interface, LCD
Backlight ... 3-28
4 Performance
Verification ...
4-1
4.1
Introduction ...
4-3
4.2 Equipment Required For Verification
... 4-3
4.3 General Instructions
...
4-3
4.4 Operating
Instructions ...
4-4
4.4.1 Resetting the test tool
...
4-4
4.4.2 Navigating through
menu’s ...
4-4
4.4.3 Creating Test Tool
Setup1 ...
4-5
4.5 Display and Backlight Test
...
4-5
4.6 Scope Input A&B Tests
...
4-7
4.6.1 Input A&B Vertical Accuracy Test
... 4-7
4.6.2 Input A&B DC Voltage Accuracy
Test ... 4-9
4.6.3 Input A&B AC Voltage Accuracy Test
(LF) ... 4-11
4.6.4 Input A & B AC Coupled Lower Frequency Test
... 4-12
4.6.5 Input A and B Peak Measurements
Test ... 4-13
4.6.6 Input A&B Frequency Measurement Accuracy Test
... 4-14
4.6.7 Input A&B Phase Measurements
Test ... 4-15
4.6.8 Time Base Test
...
4-16
4.6.9 Input A Trigger Sensitivity Test
... 4-18
4.6.10 Input A AC Voltage Accuracy (HF) & Bandwidth Test
... 4-19
4.6.11 Input B Trigger Sensitivity Test
... 4-20
4.6.12 Input B AC Voltage Accuracy (HF) & Bandwidth Test
... 4-21
4.6.13 Video test using the Video Pattern Generator
... 4-22
4.6.14 Video test using SC600 Scope Calibration Option
... 4-25
4.7 External Trigger Level Test
...
4-27
4.8 Meter (DMM)
Tests ...
4-28
4.8.1 Meter DC Voltage Accuracy Test
... 4-28
4.8.2 Meter AC Voltage Accuracy & Frequency Response Test
... 4-29
4.8.3 Continuity Function Test
...
4-30
4.8.4 Diode Test Function Test
...
4-30
4.8.5 Ohms Measurements
Test ...
4-30
4.9 Probe Calibration Generator Test
...
4-32
5 Calibration Adjustment
...
5-1
5.1 General
...
5-3
5.1.1
Introduction ...
5-3
5.1.2 Calibration number and
date ...
5-3
5.1.3 General
Instructions ...
5-3
5.1.4 Equipment Required For Calibration
... 5-4
5.2 Calibration Procedure
Steps ...
5-4
5.3 Starting the Calibration
...
5-4
5.4 Contrast Calibration Adjustment
...
5-6
5.5 Warming Up & Pre-Calibration
...
5-7
5.6 Final Calibration
...
5-8
5.6.1 Input A LF-HF Gain
...
5-8
5.6.2 Input B LF-HF
Gain ...
5-9
5.6.3 Input A&B LF-HF
Gain ...
5-11
5.6.4 Input A&B Position
...
5-12
5.6.5 Input A&B Volt Gain
...
5-13
5.6.6 DMM Volt Gain
...
5-14
5.6.7 Input A& B, and DMM Zero
...
5-15
5.6.8 DMM Ohm
Gain ...
5-16
5.6.9 Calculate
Gain ...
5-17
5.7 Save Calibration Data and
Exit ...
5-17
5.8 Probe Calibration
...
5-19
6 Disassembling the Test Tool
... 6-1
6.1.
Introduction ...
6-3
6.2. Disassembly & Reassembly Procedures
... 6-3
6.2.1 Required Tools
...
6-3
6.2.2 Removing the Tilt Stand & Hang
Strap ... 6-3
6.2.3 Replacing the Side-Strap, Changing the Side-Strap
Position ... 6-3
6.2.4 Opening the Test Tool, Removing the
Battery ... 6-3
6.2.5 Removing the Main PCA Unit and the
Fan ... 6-5
6.2.6 Removing the Display
Assembly ...
6-6
6.2.7 Replacing the LCD Window/Decal
... 6-7
6.2.8 Removing the Keypad and Keypad
Foil ... 6-7
6.2.9 Disassembling the Main PCA
Unit ... 6-7
6.2.10 Reassembling the Main PCA
Unit ... 6-8
6.2.11 Reassembling the Test
Tool ...
6-9
7 Corrective
Maintenance ...
7-1
7.1
Introduction ...
7-3
7.2 Starting Fault Finding.
...
7-4
7.3 Charger
Circuit ...
7-5
7.4 Starting with a Dead Test Tool
...
7-7
7.4.1 Test Tool Completely
Dead ...
7-7
7.4.2 Test Tool Software Does not Run.
... 7-8
7.4.3 Software Runs, Test Tool not Operative
... 7-8
7.5 Miscellaneous
Functions ...
7-8
7.5.1 Display and Back Light
...
7-8
7.5.2 Fly Back
Converter ...
7-10
7.5.3 Slow ADC,
+3V3SADC ...
7-11
7.5.4
Keyboard ...
7-12
7.5.5 Optical Port (Serial RS232
Interface) ...
7-13
7.5.6 Channel A, Channel B
Measurements ... 7-13
7.5.7 Meter Channel (Ext Trigger, Probe Cal)
... 7-15
7.5.8 Input Signal Acquisition
...
7-17
7.5.9 ADC’s
...
7-19
7.5.10 Digital Control & Memory
...
7-20
7.5.11 Buzzer Circuit
...
7-20
7.5.12 RAM Test
...
7-21
7.5.13 Power
ON/OFF ...
7-22
7.5.14
Battery ...
7-22
7.6 Loading Software
...
7-23
8 List of Replaceable
Parts ...
8-1
8.1
Introduction ...
8-3
8.2 How to Obtain
Parts ...
8-3
8.3 Service Centers
...
8-3
8.4 Final Assembly
Parts ...
8-4
8.5 Main PCA Unit Parts
...
8-6
8.6 Main PCA Parts
...
8-8
8.7
Accessories ...
8-30
9 Circuit Diagrams
...
9-1
9.1
Introduction ...
9-3
9.2 Tracing signals in circuit diagrams
... 9-3
9.3 Locating Parts & Test Points
...
9-3
9.4 Diagrams
...
9-6
10
Modifications ...
10-1
10.1 General
...
10-3
10.2 Software modifications
...
10-3
10.3 Hardware
modifications ...
10-3
10.4 Main PCA Unit Versions, Software Versions.
... 10-4