Leader LBO-308S Osciloscópio
Manufacturer:
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.

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Serviço e Manual do Usuário
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

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Serviço e Manual do Usuário
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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