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2465B/2467B Service

PRELIMINARY TROUBLESHOOTING

TURN

POWER

REFER TO PROCEDURE

FOR THE LED-CODED FAULT.

SEE TABLE 6-5 THROUGH 6-8

REFER TO THE

DISPLAY DIAGNOSTIC

PROCEDURE

REPAIR LED CIRCUITRY

OR FRONT-PANEL

INTERCONNECT

REPAIR FAULTY

SUPPLY OR

DISTRIBUTION

REFER TO ERROR MESSAGE

DIAGNOSTIC PROCEDURE

-IT)

3)3)

Oil

men

gmz

Oil

,Q<

REFER TO NOP

KERNEL DIAGNOSTIC

PROCEDURE

TROUBLESHOOTE SIGNAL

LINE.

CHECK FOR ECB

SHORT OR SHORT INTERNAL

T0U2I40, U2440, U2250,

U2540,

U2450, 0RU2405

REFER TO POWER SUPPLY

DIAGNOSTIC PROCEDURE

REPAIR OSCILLATOR/

DIVIDER CIRCUITRY

REPAIR RESET

CIRCUITRY

REFER TO OPTION

SYSTEM DIAGNOSTICS

IN THE OPTIONS

SERVICE MANUAL

6863-43

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

Brand	Tektronix
Model	2465B
Category	Test Equipment
Language	English

Tektronix 2465B Service Manual

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