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Tektronix TDS 310, TDS 320, TDS 350 Figure 628:Power Supply Connector Locations

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Troubleshooting

TDS 310, TDS 320 & TDS 350 Service Manual 6Ć45

J3 ToFan

ToMonitor

ToMain Board

Topof Instrument

Front of

Instrument

Bottom of Instrument

ToOption 14

(If Used)

Figure 6Ć28:ăPower Supply Connector Locations

Contents

Main Page WARRANTY Page Table of Contents Specifications Operating Information Theory of Operation Performance Verification Adjustment Procedures Maintenance Page Page List of Figures Page List of Tables Page Safety Summary Symbols and Terms Specific Precautions Page Page Page Page Page Warranted Characteristics Performance Conditions Page Page Page Typical Characteristics Page Page Page Nominal Traits Page Page Page Page Page Page Front Panel Page Vertical Controls TDS 310, TDS 320 & TDS 350 Service Manual 23 Horizontal Controls 24 Trigger Controls TDS 310, TDS 320 & TDS 350 Service Manual 25 26 Operating Information Miscellaneous Controls Display Map TDS 310, TDS 320 & TDS 350 Service Manual 27 Page TDS 310, TDS 320 & TDS 350 Service Manual 29 Rear Panel Page Page Menu Maps 212 Figure 22:Primary Functions Menu Map Operating Information Menu Maps Figure 23:Secondary Functions Menu Map TDS 310, TDS 320 & TDS 350 Service Manual 213 Page Page Theory of Operation Logic Conventions Module Interconnection 32 50 Terminations RS232 GPIB CENTRONICS A9 A20 A9 A20 A1 A26 A3 A1 Main Board Attenuators / Probe Coding Interface Acquisition System Sampler Driver 9 ; (% -32.32 -& 2(% !22%,3!2-0 $0)4%1 2(% 1!+.*%0 Sampler 9 ; (% 1!+.*%0 .0-4)$%1 25- !#/3)1)2)-, #(!,,%*1 2 Buffer Amp A/D Converter Time Base Controller (TBC) 8 : &#1'*# 0#!,+1/,))#/ Acquisition Memory 8 : &# !.2'0'1',+ *#*,/6 !,+0'010 ,$ + Time Interpolator Analog Trigger A1 1 The analogtrigger is a free running analog Trigger Logic A1 3 Triggerlogic is the digital part of the trigger CPU System A1 6 CPU Clocks Interrupts Reset Memory A2/A3 Option Board (Option 14 Instruments Only) A4 Front Panel Pots, FPP, and Calibrator A4 1 Switches 7 LEDs and Power Supply 7 Inputs, Video, and Vertical Deflection A20 Low Voltage Power Supply A26 Monitor Horizontal Deflection, CRT,and High Voltage Fan '$ Page Performance Verification Conventions Page Test Equipment Test Record Page Self Test Page Functional Test Page Page Page Performance Tests Check DC Voltage Measurement Accuracy Prerequisites Signal Acquisition System Checks Page DC Gain Accuracy Offset Accuracy Check Analog Bandwidth Page Check LongTermSample Rate and Delay Time Accuracy Time Base System Checks Delta Time Measurement Accuracy Check Edge Trigger Sensitivity,DC Coupled Trigger System Checks Page Trigger Level Accuracy,DC Coupled Page Page Adjustment Adjustment Interval Equipment Required The System Calibration Menu Page Attenuator Adjustment Page Monitor Adjustments Page Page Page Inspection and Cleaning Preventing ESD Precautions Inspection Exterior General Care Inspection and Cleaning Procedures Cleaning Procedure Exterior Inspection Interior Cleaning Procedure Interior Page Page Removal and Replacement General Instructions Preparation Please Read Equipment Required Line Fuse and Line Cord Page Front Panel Knobs and Shafts Page Rear Cover, Cabinet, and Cabinet Handle Page Trim Ring, Menu Elastomer, Menu Buttons, and Front EMI Gaskets Page Front Panel Assembly and Menu Flex Circuit Page Removal and Replacement View A Figure 69:Disassembly of FrontPanel Assembly TDS 310, TDS 320 & TDS 350 Service Manual 619 Main Board Page Page Monitor Assembly Page Page Power Supply Page Option 14 Assembly Page Fan and Fan Mount Page Page Troubleshooting Onboard Diagnostics Page Enabling Calibration Menus Troubleshooting Procedure Figure 620:Primary Troubleshooting Procedure TDS 310, TDS 320 & TDS 350 Service Manual 637 638 Figure 621:Module Isolation TroubleshootingProcedure Figure 622:Front Panel/Processor TroubleshootingProcedure TDS 310, TDS 320 & TDS 350 Service Manual 639 640 Figure 623:Monitor Troubleshooting Procedure Page Page Figure 627:Power Supply TroubleshootingProcedure TDS 310, TDS 320 & TDS 350 Service Manual 643 Page Figure 628:Power Supply Connector Locations TDS 310, TDS 320 & TDS 350 Service Manual 645 646 WARNING Figure 629:Supply Overload TroubleshootingProcedure Figure 630:I/O Interfaces Option TroubleshootingProcedure TDS 310, TDS 320 & TDS 350 Service Manual 647 Page Repackaging Instructions Page Page Options and Accessories Options Option 14: I/O Interfaces Options A1-A5: International Power Cords Option 1K: K212 Scope Cart Option 3P: Thermal Printer (Includes Option 14) Option 9C: Certificate of Calibration and Test Data Report WarrantyPlus Service Options Standard Accessories Optional Accessories Accessory Probes Accessory Cables Page Replaceable Electrical Parts Tektronix Part No. Serial No. Name & Description Mfr. Code Mfr. Part No. TDS 310, TDS 320 & TDS 350 Service Manual 83 84 TDS 310, TDS 320 & TDS 350 Service Manual 85 86 TDS 310, TDS 320 & TDS 350 Service Manual 87 88 TDS 310, TDS 320 & TDS 350 Service Manual 89 810 TDS 310, TDS 320 & TDS 350 Service Manual 811 812 TDS 310, TDS 320 & TDS 350 Service Manual 813 814 TDS 310, TDS 320 & TDS 350 Service Manual 815 816 TDS 310, TDS 320 & TDS 350 Service Manual 817 818 TDS 310, TDS 320 & TDS 350 Service Manual 819 820 TDS 310, TDS 320 & TDS 350 Service Manual 821 822 TDS 310, TDS 320 & TDS 350 Service Manual 823 824 TDS 310, TDS 320 & TDS 350 Service Manual 825 826 TDS 310, TDS 320 & TDS 350 Service Manual 827 828 TDS 310, TDS 320 & TDS 350 Service Manual 829 830 TDS 310, TDS 320 & TDS 350 Service Manual 831 832 TDS 310, TDS 320 & TDS 350 Service Manual 833 834 Page Diagrams and Circuit Board Illustrations Symbols Component Values Graphic Items and Special Symbols Used in This Manual Component Locator Diagrams Page Replaceable Mechanical Parts Item Names Parts Ordering Information Using the Replaceable Parts List Indentation System Abbreviations TDS 310, TDS 320 & TDS 350 Service Manual 103 104 Figure 101:Cabinet TDS 310, TDS 320 & TDS 350 Service Manual 105 106 Figure 102:FrontPanel Assembly TDS 310, TDS 320 & TDS 350 Service Manual 107 108 A1 TDS 310, TDS 320 & TDS 350 Service Manual 109 A26 A20 Figure 103:CRT,Power Supply, and Circuit Boards A3 TDS 310, TDS 320 & TDS 350 Service Manual