Equipment information

Leader 1021 Oscilloscope
Manufacturer:
Model:
1021
Date:
Category:
Group:
Description:
20mhZ oSCILLOSCOPE
Service and User Manual
Manual Type:
Service and User Manual
Pages:
72
Size:
8.24 Mbytes (8642693 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
Quality:
Scanned document, all readable.
Upload date:
2017 09 11
MD5:
27b35f1ae8e69255332a5555f4ae95e4
Downloads:
1287

Information

1. SPECIFICATIONS ... 1-1 2. TEST EQUIPMENT REQUIRED ... 2-1 3. CALIBRATION PROCEDURE ... 3-1 3-1. General ... 3-1 3-2. Initial Control Settings ... 3-1 3-3. Power supply ... 3-3 (1) Low Voltage Power supply ... 3-3 (2) High Voltage Power supply ... 3-3 3-4. Display ... 3-4 (1) Intensity ... 3-4 (2) Focus ... 3-4 3-5. Vertical Amplifier ... 3-4 (1) DC Balance ... * ... 3-4 (2) ADD Balance ... 3-5 (3) Position Centering ... 3-5 (4) XI AC Gain ... 3-5 (5) Gain ... 3-6 (6) Attenuator Phase Compensation ... 3-6 (7) Input Capacitance ... 3-6 (8) High Frequency Compensation ... 3-7 3-6. Time Base/Horizontal Amplifier ... 3-8 (1) XI Gain, TIME/DIV ... 3-8 (2) X10 MAG Gain ... 3-9 (3) Position Centering ... 3-9 3-7. Trigger ... 3-10 (1) Trigger Level ... 3-10 (2) Trigger Balance ... 3-10 3-8. X-Y Operation ... 3-11 (1) X Gain ... 3-11 (2) X Position Centering ... 3-11 3-9. CAL 0.5 Vp-p ... 3-11 4. TROUBLESHOOTING PROCEDURE ... 4-1 4-1. General ... 4-1 4-2. Theory of Operation ... 4-1 4-3. Troubleshooting Aid ... 4-4 (1) Overall Operation ... 4-4 (2) Vertical Amplifier Section ... 4-7 (3) Time Base/Horizontal Amplifier Section ... 4-8 (4) Trigger Section ... 4-9 (5) Others ... 4-9 5. ADJUSTMENT LOCATIONS ... 5-1 Top View ... 5-1 Bottom View ... 5-2 6. PRINTED CIRCUIT BOARD ... 6-1 SC-3 Vertical Board ... 6-1 SC-6 Horizontal Board ... 6-2 SC-8 Power supply Board ... 6-3 SC-9 CRT Socket ... 6-3 SC-10 Scale illumination ... 6-3 7. BLOCK DIAGRAM/SCHEMATIC DIAGRAMS ... 7-1 Block Diagram ... 7-1 Attenuator ... 7-2 CHI Input Amplifier ... 7-3 CH2 Input Amplifier ... 7-4 CHI Pre Amp & Trig Pick Off ... 7-5 CH2 Pre Amp & Trig Pick Off ... 7-6 Vertical Control ... 7-7 Vertical Main Amplifier ... 7-8 Trigger Amplifier ... 7-9 Sweep Generator ... 7-10 Timing Circuit ... 7-11 Horizontal Main Amplifier ... 7-12 Chop Pulse Generator ... 7-13 H.V. CRT Driver ... 7-14 Power Supply ... 7-15 8. WIRING DIAGRAM ... 8-1 9. PART LIST ... 9-1.

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