Fairchild Instrumentation - 765MH/F - Oszilloskop
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Gerät:
765MH/F
Datum:
1965
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The Fairchild Instrumentation Types 765 766 and 767 Family of Oscilloscope are available in three basic form factors:
bench, rack, and portable models. The Portable Models are
identified by the Type 765 numerical Series; the Bench
Models by the Type 766 numerical Series, and the
Rack-mounted Models by the Type 767 numerical Series.
In addition, there are alphabetical suffixes appended to the
numerical series to identify special electronic circuits.
The suffix H denotes the high-voltage Oscilloscope with an
accelerating potential of 13 Kv. The low voltage option is 5
Kv and these series Oscilloscope are identified by the
absence of the H alphabetical suffix.
The suffix H/F denotes the high-voltage, high-frequency
model. These models are provided with the Type 7062 CRT
Termination Network to enable them to accommodate the Type 79-02A DC to 100 Me Plug-In Amplifier The suffix M denotes
the militarized model. Further details for all of the models
are listed in the Specifications.
Since the electrical circuits are identical in all models
except for minor differences, discussion will be confined to
the Type 766H Series Oscilloscope All references to the
Type 766H Series will be equally applicable to the other
models unless otherwise indicated.
To simplify discussion, the Type 766H Series Oscilloscope may be categorized into three basic Series: (1) Low-voltage,
(2) High-voltage, and (3) High Frequency.
1. The following models comprise the low-voltage Series:
Type 765 765M 766 766M 767 and 767M 2. The following models comprise the high-voltage
Series:
Type 765H 765MH 766H 766MH 767H 767MH 3. The following models comprise the high-frequency Series:*
Type 765H F 765MH F 766H F 766MH F 767H F, & 767MH F
*Note: These Oscilloscope are electrically identical to the
high-voltage series except for the addition of the
high-frequency CRT Termination Network.
Separate manuals are provided for each of the plugin units.
If desired, these manuals may be inserted into the same
binder supplied with your Indicator unit.
1-2. FEATURES
The Fairchild Instrumentation Type 766H Family of Oscilloscope consists of
an Indicator Unit and any two of a number of available Plug-In modules. The Indicator Unit contains the power
supplies, a cathode-ray tube with associated circuitry, and
an internal amplitude Calibrator The Plug-In modules take the place of the vertical and
horizontal deflection systems of a conventional Oscilloscope and their outputs are connected directly to
the deflection plates of the cathode-ray tube.
All Plug-In in the Type 74-00 and 76-00 Series may be used
universally in the Oscilloscope The Plug-In modules may be
selected to give a degree and type of performance demanded
of them by the particular application for which they are to
be used.
• 13 Kv accelerating potential (low-voltage option:
5 Kv) " ' ' ’ '
• Quality display area of 6 cm by 10 cm
• Three basic Main Frames available: Portable (Type 765 ),
Bench (Type 766 ) and Rackmounted (Type 767 )
• Silicon solid state circuitry
• Dual Plug-In capability (DC to 100 Me) with all High
Frequency or H/F Models
• Z-axis input provided on all bench and rackmounted models
• Illuminated internal graticule optionally available
• Silicon transistors and fully regulated electronic power
supplies, assure maximum drift stability and long-term
reliability
1 Handbuch
Reparatur und Bedienungsanleitung
Dokumenttyp:
Reparatur und Bedienungsanleitung
Seitenanzahl:
63
Größe:
19,0 MB
Sprache:
englisch
Revision:
Dokument-ID:
6704 5893
Datum:
Januar 1965
Qualität:
Gescanntes Dokument, teilweise schwer oder teilweise nicht zu lesen.
Upload Datum:
7. Mai 2017
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'I. TECHNICAL SUMMARY
1-1 Introduction
.................................................................
1-1
1-2 Features
..............................................................................
1-1
1-3 List of Recommended Accessories 1-3
1-4 Technical Summary (Specifications) ... 1-3
1-5 Type 765MH Technical Data ........................ 1-7
2. OPERATING INSTRUCTIONS
2-1 Introduction
......................................................................
2-1
2-2 Preliminary Information
.................................... 2-1
2-3 Power Requirements
............................................... 2-1
2-4 Operating Instructions
........................................ 2-1
2-5 Beam Brightening Switch
................................. 2-4
2-6 Operator’s Maintenance Information ... 2-4
3. CIRCUIT DESCRIPTION
3-1 Introduction
.................................................................
3-1
3-1 Circuit Description for Low Voltage
Regulated Supplies
....................................................................................3-1
3-3 CRT Circuit
............................................................................................................................3-1
3-4 Normal Sweep Unblanking
............................................................3-3
3-5 Fast Single Sweep
Unblanking................................................3-3
4. PERFORMANCE ASSURANCE TEST
4-1 Maintenance Check to Assure
Performance
........................................................... 4-1
4-2 Checking the Power Supply 4-1
4-3 Check Ripple of Low-Voltage
Supplies
..........................................................................
4-1
4-4 Calibrator Check
......................................................... 4-1
4-5 Checking CRT Geometry Adjustment... 4-2
5. MAINTENANCE AND RECAUBRATION
5-1 Introduction
.................................................................
5-1
5-2 Removal and Replacement of Parts ...... 5-1
5-3 Cathode-Ray Tube Replacement ............... 5-2
5-4 Servicing Hints
............................................................ 5-2
5-5 Trouble Shooting the Power Supply 5-3
5-6 Trouble Shooting the CRT Circuit ..........5-3
5-7 Test Equipment Required for
Service Adjustments
.......................................... 5-4
5-8 Adjusting the Low-Voltage Power
Supplies
.......................................................................
5.4
5-9 High-Voltage Adjustment ............................... 5-4
5-10 CRT Adjustments
................................................... 5-4
5-11 Setting Main Frame Capacity for
LV and HV Series Only .............................. 5-10
5-12 Type 7062 CRT Termination
Network (HF Series Only) ........................ 5-10
5-13 Supplement for Type 766H Mod 102 Oscilloscope 5-13
Section Title
6. PARTS LISTS AND SCHEMATICS
6A Electrical Parts List
............................................................................................6-1
6B Spare Parts List
....................................................................................................................6-5
.
List of Recommended Vendors
....................................6-7
ILLUSTRATIONS
Figure T itle page
1-1 Fairchild Instrumentation Type 766H Transistorized Oscilloscope 1-0
1-2 Type 765H Portascope
..................................................................................1-2
1-3 Type 765 Portascope with Complete
Carrying Case
............................................................ 1-2
1-4 Type 766 H. Bench
Model....................................................................1-2
1-5 Type 767H Rack
Model..........................................................................1-2
1-6 Type 7085A Rack Slide Set to 90° with Type 767H Oscilloscope Installed
........................................................................................................1-5
1-7 Type 767H Oscilloscope howing
Clearance Dimension for Installation of Type 7085A Rack
Slides and Type 7078 Kit for Flush
Mounting
.....................................................................
1-6
1-8 Type 767H Oscilloscope howing
Clearance Dimension for Installation of Type 7085A Rack
Slides (Standard Installation) . 1-6
1-9 Type 765MH 1-7
2-1 Type 766H Solid State Oscilloscope Front-Panel Facilities
...................................... 2-2
2-2 Type 766H Calibrator Display ..................... 2-3
2-3 Single Sweep Unblanking Vs
Sweep Speed
...............................................................
2-4
3-1 Type 766 H Series +200V and +100V
Regulators, Functional Block
Diagram
........................................................................
3-2
3-2 Type 766H Series +50V and ~50V Regulators, Functional Block
Diagram
........................................................................
3-2
5-1 Type 766H Over-all System Functional Block Diagram
.................................... 5-1
5-2 Rear View Showing Transistors
and
CRT......................................................................
5-5
5-3 Rear View Showing Fuses, Switch
and Diodes
................................................................
5-6
5-4 Top View of Chassis Showing Test Points, Transistors and
Adjustments
......................................................... 5-7
5-5 Right Oblique View Showing X & Y
Peaking Trimmers ........................................... 5-8
5-6 Left Oblique View Showing ^ Transistors, Switch and
Adjustment... 5-9
5-7 Installation Instructions
.................................... 5-11
5-8 Installation Instructions
................................... 5-12
5-9 Type 7062 Interconnecting Diagram ...... 5-13
5-10 Test Setup for Peaking Adjustment ..... 5-14
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