Geräte Informationen

BK Precision 1471 Oszilloskop
Hersteller:
BK Precision
Modell: 1471
Datum:
Kategorie: Messgeräte
Gruppe: Oszilloskop
Beschreibung: 10 MHz, TRIGGERED SWEEP Dual-Trace Oscilloscope
Informationen:
                                    The B & K-Precision Model 1471 Dual-Trace Oscilloscope is a
laboratory-quality, professional instrument for observing
and measuring waveforms in electronic circuits. Dual
vertical inputs are provided for simultaneous viewing of two
waveforms. Low-frequency, low repetition rate waveforms are
chopped at a 200 kHz rate to provide for simultaneous
viewing. Alternate sweep of the two inputs permits
simultaneous viewing of high-speed, high repetition- rate
waveforms.
The dual-trace feature, together with the 10 MHz bandwidth,
wide range of sweep speeds, and high sensitivity provided,-
make this the ideal oscilloscope for a broad range of
applications, including troubleshooting and repairing
electronic equipment, research and development, and
laboratory instruction.

Two input waveforms can be viewed either singly or
simultaneously, as desired.
Only the cathode ray tube uses a filament. All other stages
use transistors, diodes, FET’s (field effect transistors)
and IC’s. Among the advantages of solid state construction are:
• No stabilization warm-up time required.
• Low power drain.
• Dependability — reliability
• Ruggedness.
• Light weight.
• Compactness.
The 1471’s stability of waveform presentations is beyond
comparison with non-triggered sweep oscilloscopes. The
sweeps remain at rest until triggered by the signal being
observed, to assure that they are always synchronized. Fully
adjustable trigger threshold allows the desired portion of
the waveforms to be used for triggering. Waveforms can also
be synchronized to an external sync trigger.
The 130 mm (approx. 5.1 inches) diameter cathode ray tube
gives easy-to-read presentation on an 8 x 10 cm rectangular
viewing area.
Accurate measurement of the instantaneous voltages on 11
different attenuator ranges for both Channel A and Channel B.
Accurate time measurements on 18 different ranges.
DC to 10 MHz bandwidth and 35 nSEC rise time assure
distortion- free, high resolution presentation at high
frequencies.

Sweep speed range of 1 /uSEC/cm to 0.5 SEC/cm provides every
speed necessary for viewing waveforms from DC to 10 MHz.
A five time magnification (5X) of the horizontal sweep
allows close- up examination of a portion of the waveform.
In addition, the 5X magnification provides a maximum sweep
speed of 0.2 /iSEC/cm.
Permits the low-capacitance, high- impedance, 10:1
attenuation probes to be used for virtually all
measurements, thus assuring less circuit loading.
A built-in sync separator circuit is included specifically
for viewing television signals. When using TV SYNC,
television vertical sync pulses are automatically selected
at sweep times of 0.5 SEC/cm to
0.1 mSEC/cm for viewing television frames. Television
horizontal sync pulses are automatically selected at sweep
times of 50 ixSEC/cm to 1 /!SEC/cm for viewing television lines.
The unit may be used as a vector- scope to provide a color
display exactly as specified by color television manufacturers.
A built-in calibrated 1 volt peak- to-peak square wave
permits checking and recalibration of the vertical
amplifiers without additional equipment.
Intensity modulation capability included for time or
frequency markers. Compatible with TTL logic; brightness
increases in logic low state, decreases in logic high state.

Folgende Handbücher sind hierfür verfügbar:

Dokumenttyp: Service- und Bedienungsanleitung BKPrecision-8503-Manual-Page-1-Picture
Seitenanzahl: 46
Dateigröße: 6.34 Mbytes (6653022 Bytes)
Sprache: Englisch
Revision:
Dokument-ID/Nummer: 480-169-9-001
Datum:
Qualität: Gescanntes Dokument, alles ist lesbar.
Upload Datum:
MD5: d408da65e0d82a13d6b9ca64e1aabaeb
Downloads: 114 seit dem 24 Januar 2017
Informationen:
INTRODUCTION
........................................................................
FEATURES
.................................................................................
SPECIFICATIONS
......................................................................
OPERATOR’S CONTROLS, INDICATORS AND FACILITIES
OPERATING INSTRUCTIONS
Initial Starting Procedure
.......................................................
Single-Trace Waveform Observation
.....................................
Calibrated Voltage Measurement
..........................................
Calibrated Time Measurement
..............................................
External Horizontal Input (X-Y Operation)
........................
Z-Axis
Input.............................................................................
Dual-Trace Waveform Observation
........................................
DUAL-TRACE APPLICATIONS
Introduction.............................................................................
Frequency Divider Waveforms
..............................................
Divide-by-8 Circuit Waveforms
..............................................
Digital Circuit Time Relationships
.......................................
Gated Ringing
Circuit.............................................................
Delay Line
Tests......................................................................
Stereo Amplifier Servicing
.....................................................
Television Servicing
................................................................
SINGLE-TRACE APPLICATIONS
Introduction.............................................................................
Television Servicing
................................................................
Signal Tracing and Peak-to-Peak Voltage Readings .............
Composite Video Waveform Analysis
...................................
Sync Pulse Analysis
................................................................
VITS (Vertical Interval Test Signal)
.....................................
Vectorscope
Operation...........................................................
TELEVISION ALIGNMENT
Introduction.............................................................................
Importance of Sweep Alignment
..........................................
Sweep Alignment Methods
.....................................................
Tuner Alignment
....................................................................
IF Alignment
...........................................................................
Chroma Alignment
.................................................................
FM RECEIVER ALIGNMENT
..........................................................................................31
PHASE MEASUREMENT
................................................................................................31
FREQUENCY MEASUREMENT
......................................................................................33
SQUARE WAVE TESTING OF AMPLIFIERS
Introduction...................................................................................................................33
Testing
Procedure...........................................................................................................34
Analyzing the Waveforms
..............................................................................................34
CIRCUIT DESCRIPTION
General............................................................................................................................38
Vertical Preamplifiers
.....................................................................................................38
Mode Logic
....................................................................................................................38
Vertical Amplifier
.........................................................................................................38
Trigger Circuit
................................................................................................................38
Sync Amplifier and Inverter
..........................................................................................38
Auto Sweep
....................................................................................................................40
Horizontal Amplifier
.....................................................................................................40
Chopping Oscillator
.......................................................................................................40
1 Volt Cal Signal
...........................................................................................................40
Power Supply
..................................................................................................................40
Block Diagram
................................................................................................................50
CALIBRATION ADJUSTMENTS
CH 1 and CH 2 DC Balance
..........................................................................................40
1/2 and 1/5 Attenuator Balance
...................................................................................40
Vertical Gain
Adjustment..............................................................................................40
Horizontal Position Adjustment
...................................................................................40
WARRANTY INSTRUCTIONS
........................................................................................42
WARRANTY........................................................................................................................43
BKPrecision-8503-Manual-Page-1-Picture


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