10 S-Series Oscilloscopes Service Guide
1 General Information
 
Instruments Covered by this Service Guide
Oscilloscopes manufactured after the date this manual was released may be 
different from those described in this manual. The release date of this manual is 
shown on the back of the title page. This manual will be revised when necessary. 
If you have an oscilloscope that was manufactured after the release of this manual, 
please check the Keysight Technologies website at www.keysight.com to see 
whether a newer version of this manual is available.
The following S-Series oscilloscopes are covered in this guide. The oscilloscope 
model is identified by the product number on the front panel.
Accessories Supplied
•mouse
•keyboard
•accessory pouch
• front panel cover
•localized power cord
•calibration cable
• N2873A 10:1 500 MHz Divider Passive Probe (one per scope channel)
• 17-channel Flying Lead Set Logic Probe, MSO Cable, and BNC probe tip 
adapter (MSO models only)
• Keysight I/O Libraries Media Suite
•Quick Start poster
 Model  Bandwidth
DSOS804A/MSOS804A 8 GHz 
DSOS604A/MSOS604A 6 GHz
DSOS404A/MSOS404A 4 GHz 
DSOS254A/MSOS254A 2.5 GHz 
DSOS204A/MSOS204A 2 GHz
DSOS104A/MSOS104A 1 GHz 
DSOS054A/MSOS054A 500 MHz