Tektronix 2465B - Page 534

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Product: 2465B/2467B Service

Date:

21-JUNE-93 Change Reference: M76959

C1870

REMOVE: 281-0773-00

ADD:285-1356-00

R1869

ADD:

315-0101-03

C1850,

C1851.C1892

ADD:

281-0775-01 (3)

C1813

P904

C1888

C18V

C1815

R1864

R1870

C1885

|R1871

[R1872|

|R1873|

Icissir

!ci850f

U1830

R1913

L1921

R1920J

CR1930J

C1932!

P191

|R1941

j R1945 j

|R1944l

T1970

C1971

J1956

R1973

|F1

T-

evil

crlcrl oc

C1915 (Manual error only)

REMOVE: 281-0783-00

ADD:285-1356-00

R1953

REMOVE: 313-1393-00

ADD:315-0393-00

R1993

ADD:315-0103-00

R1850

ADD:315-0100-02

A9 High Voltage Board

Page 4 of 4

Main Page

Warranty3
List of Illustrations7
List of Tables8
Operators Safety Summary10
Servicing Safety Summary11
Specification13
Performance Conditions13
Horizontal Deflection System19
Z-Axis Input21
Signal Outputs22
A GATE out and B GATE out22
Ac Power Source22
Signal Input26
Logic Trigger28
Asynchronous Mode32
Inputs and Outputs32
Power Cord Receptacle40
Repackaging for Shipment40
Theory of Operation43
High Voltage45
Detailed Circuit Description47
Processor and Digital Control47
FRONT-PANEL SCANNING and ANALOG CONTROLS51
Front Panel Controls53
Switch Matrix54
Attenuators and Preamps55
SCALE ILLUM Control58
Display Sequencer, Triggers, and Sweeps59
Parametric Measurements65
Vertical Channel Switch and Output Amplifiers65
Low-Voltage Power Supply88
Low-Voltage Regulators93
Power Distribution95
Performance Check and Functional Verification Procedure151
Trig Aft Dly158
Trigger Source161
Vertical Mode161
Counter/Timer/Trigger Checks181
HORIZONTAL (Cont)186
Vertical Mode187
Calibrator, External Z-Axis and Gate Outputs188
Trigger Holdoff189
Additional Functional Verification190
Vertical Position191
Word Recognizer Checks192
Adjustment Procedure197
Adjust-Intensity201
Adjustment Locations203
ADJUST-Edge204
Cal 01-Horizontal209
Volts DIV209
Cal 02-Vertical212
Trigger Coupling214
Cal 03-Triggering214
Cal 04-Ch 2 Delay Enable/Disable215
Cal 06-Vertical Transient Response216
Maintenance223
Static-Sensitive Components223
Preventive Maintenance224
General Care224
Inspection and Cleaning224
Semiconductor Checks226
Periodic Readjustment226
Troubleshooting Aids227
Troubleshooting Equipment229
Troubleshooting Techniques229
Diagnostic Routines232
Corrective Maintenance242
Maintenance Precautions242
Obtaining Replacement Parts242
Maintenance Aids243
Transistors, Integrated Circuits, and Hybrid Circuits244
Soldering Techniques244
Removal and Replacement Instructions246
Fan Removal248
Regulator Board249
Front Panel Removal251
Power Cord Options257
Replaceable Electrical Parts259
Cross Index - Mfr. Code Number to Manufacturer261
Cross Index - Mfr. Code Number to Manufacturer331
Diagrams and Circuit Board Illustrations403
Vertical Mode420
Preliminary Troubleshooting457
Replaceable Mechanical Parts476
Cross Index - Mfr. Code Number to Manufacturer478
Cross Index - Mfr. Code Number to Manufacturer500
Optional Accessories515
Revision Information518
Manual Change Information520

Tektronix 2465B - Page 534

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