Tektronix TDS2022C

Table of Contents
Check Bandwidt
h ........................................................................................ 31
Check Sample Rate Accuracy and Delay Time Accuracy........................................... 32
Check Edge Trigger Sensitivity ........................................................................ 33
Check External Edge Trigger Sensitivity.............................................................. 35
Check Vertical Position Accuracy...................................................................... 36
Adjustment Procedures ........................................................................................... 41
Required Equipment.......................................................................................... 41
Adjustment Procedure........................................................................................ 41
Enable the Service Menu................................................................................ 42
Adjustment Procedure................................................................................... 44
Maintenance........................................................................................................ 49
Preventing ESD ............................................................................................... 49
Inspection and Cleaning...................................................................................... 49
General Care.............................................................................................. 50
Interior Cleaning ......................................................................................... 50
Exterior Cleaning ........................................................................................ 50
Exterior Inspection....................................................................................... 51
Interior Inspection ....................................................................................... 51
Cleaning Procedure, Interior............................................................................ 52
Removal and Installation Procedures....................................................................... 54
Summary of Procedures................................................................................. 54
Required Tools ........................................................................................... 56
Rear Feet.................................................................................................. 56
Flip Feet................................................................................................... 57
Front-Panel Knobs ....................................................................................... 57
Power Button ............................................................................................. 57
Rear Case ................................................................................................. 58
Front Feet ................................................................................................. 59
Power Supply Module................................................................................... 60
Internal Assembly........................................................................................ 61
Front-Panel Cable........................................................................................ 62
Main Board Module (Serial number C030000 or later) ............................................. 63
Display Module .......................................................................................... 66
Front-Panel Module...................................................................................... 67
Keypad .................................................................................................... 68
Troubleshooting............................................................................................... 69
Adjustment After Repair ................................................................................ 69
Required Tools and Equipment......................................................................... 69
Troubleshooting Tree.................................................................................... 69
Probe Comp Output...................................................................................... 74
Troubleshooting the Power Supply .................................................................... 75
ii TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual