Leader LBO-308S Osciloscópio
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Model:
LBO-308S
Date:
0
Category:
Group:
Description:
Dual trace Oscilloscope
Information
The model LBO-308S is a high-quality dual-trace, 20-MHz
portable Oscilloscope ideally suited for field service. It
is an extremely compact, lightweight, general-purpose
instrument, designed to provide accurate signal measurements
for either bench or field service. The highly sensitive
vertical Amplifier provides calibrated deflection
sensitivity from 2 mV/div to 10 V/div. The time base
provides stable triggering over the full bandwidth of the
vertical Amplifier as well as calibrated sweep speeds from
0.2 sec/div to 0.5 µsec/div. A times 5 magnifier extends the
maximum sweep speed to 0.1 µsec/div.
The instrument may be operated from either 117/234 volts AC,
11 to 30 volts DC, or from battery pack.
The model LBO-308 features a 3-inch rectangular 8 X 10
division CRT, mounted horizontally, with an internal
graticule which provides for accurate and Sharp displays at
any viewing angle without parallax errors.
Manual type:
Serviço e Manual do Usuário
Pages:
68
Size:
10.08 Mbytes (10568551 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
Quality:
Documento Scaned, a leitura parcialmente mal, não parcialmente legível.
Upload date:
12 September 2017
MD5:
5166d5902c572341aef26051561925a2
Downloads:
1824
Information
1, GENERAL
INFORMATION ... - • • I
1-1 INTRODUCTION
... • 1
1-2 SPECIFICATIONS
... 1
2. OPERATING INSTRUCTIONS
... 3
2.-1 FUNCTION OF CONTROLS, CONNECTORS, AND
INDICATORS ... . . . 3
2-1-1 Display Block ... .
... 27
3-7 SWEEP TIME ACCURACY
... 27
3-7-1 Equipment Required
... 27
3-7-2 Sweep Time Accuracy ...
... 27
3-7-3 Magnified Sweep
Accuracy ... 27
3-8 TV TIGGERING.
... ... ... 28
3-8-1 Equipment
Required ... 28
3-8-2 TV Sync
Triggering ... 28
3-9 X-Y MODE DIFFERENCE •
... 28
3-9-1 Equipment
Required ... 28
3-9-2 Phase
Measurement ... 28
4, ADJUSTMENT AND CALIBRATION PROCEDURES
... 30
4-1. PREPARATION
... 30
4-1-1 Test Equipment and Tools .
... 30
4-1-2 Disassembly.
... 30
4-1-3 Warmup and Preliminary
Set-up ... 30
4-2 POWER. SUPPLY . „ .
...
... 30
4-2-1 Voltage Checks and Adjustments 30
4-2-2 Battery Lower-Limit
Adjustment ... 31
4-2-3 Charge Rate Adjustment
... 31
4-3 DISPLAY
CIRCUITS ... 31
4-3-1 Blanking
Circuits ... 31
4-3-2 Intensity Range
Adjustment ... 3.1.
4-3-3 Geometry
Adjustment ... 31
4-3-4 Astigmatism
Adjustment ... 32
4-3-5 Z-Axis Modulation. Check ... .
... 32
4-4 VERTICAL Amplifier
... 33
4-4-1 Step Attenuator Balance Adjustment
... 33
4-4-2 Balance
Adjustment ... 33
4-4-3 ADD Ba.lao.ce Adjustment ...
44-4 Output Amplifier Adjustments ...
44-5 Gain Calibration ...
44-6 Step Response and Frequency Check. .
4-5 TIMEBASE ...
4-5-1. TIME/DIVCalibration ... ...
4-5-2 Horizontal Position Centering ...
4-5-3 Sweep Length. Adjustment ...
4-6 TRIGGER CIRCUIT ...
4-6-! LEVEL Balance Adjustment. ...
4-6-2 Trigger Sensitivity Checks. ...
4-7 X-Y CIRCUITRY ...
4-8 CALIBRATION ...
REPLACEMENT PARTS LIST ...
BLOCK DIAGRAM AND SCHEMATICS
Manual type:
Serviço e Manual do Usuário
Pages:
68
Size:
10.08 Mbytes (10568551 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
Quality:
Documento Scaned, a leitura parcialmente mal, não parcialmente legível.
Upload date:
04 April 2014
MD5:
89812c02ac34053256a280b048e04ae4
Downloads:
2399
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