Tektronix MSO44 User Manual

Table of Contents
List of Figures................................................................................................................................................................................5
List of Tables................................................................................................................................................................................. 6
Important safety information..........................................................................................................................................................7
General safety summary........................................................................................................................................................7
Service safety summary.......................................................................................................................................................10
Terms in the manual.............................................................................................................................................................10
Terms on the product........................................................................................................................................................... 10
Symbols on the product....................................................................................................................................................... 10
Preface........................................................................................................................................................................................ 11
Supported products..............................................................................................................................................................11
Replaceable parts................................................................................................................................................................ 11
Where to find operating information..................................................................................................................................... 11
Theory of operation..................................................................................................................................................................... 12
Power supply....................................................................................................................................................................... 12
Processor board...................................................................................................................................................................12
Main board........................................................................................................................................................................... 12
Front panel and display........................................................................................................................................................13
Adjustment procedures............................................................................................................................................................... 14
Adjustment........................................................................................................................................................................... 14
Adjustment interval.............................................................................................................................................................. 14
Adjustment after repair.........................................................................................................................................................14
Maintenance................................................................................................................................................................................15
Preventing ESD................................................................................................................................................................... 15
Inspection and cleaning....................................................................................................................................................... 15
Exterior cleaning (other than dissplay)..........................................................................................................................15
Flat panel display cleaning........................................................................................................................................... 16
Interior cleaning............................................................................................................................................................ 16
Lubrication.................................................................................................................................................................... 17
Returning the instrument for service.............................................................................................................................17
Removal and replacement procedures................................................................................................................................ 17
Required equipment..................................................................................................................................................... 18
Removal/Replacement procedures...............................................................................................................................18
Troubleshooting................................................................................................................................................................... 30
Service level................................................................................................................................................................. 30
Check for common problems........................................................................................................................................30
Equipment required...................................................................................................................................................... 30
Troubleshooting flow chart............................................................................................................................................30
Instrument self tests......................................................................................................................................................31
Software updates..........................................................................................................................................................32
After repair.................................................................................................................................................................... 32
Replaceable parts....................................................................................................................................................................... 33
Parts ordering information....................................................................................................................................................33
Module servicing.................................................................................................................................................................. 33
Abbreviations....................................................................................................................................................................... 33
Table of Contents
4 Series MSO (MSO44, MSO46) Service 3

Tektronix MSO44 Specifications

General

Bandwidth	200 MHz, 350 MHz, 500 MHz, 1 GHz
Analog Channels	4
Operating Temperature	0 °C to +50 °C
Sample Rate	6.25 GS/s
Record Length	62.5 Mpoints
Input Impedance	1 MΩ ±1%, 50 Ω ±1%
Vertical Resolution	12 bits
Waveform Capture Rate	Up to 500, 000 wfm/s
Maximum Input Voltage	5 VRMS (50 Ω)
Probe Interface	TekVPI
Digital Channels	16 (optional)