TDS794D

Manuals – Specifications – Links – Pictures

The Tektronix TDS794 is a 2 GHz, 4 GS/s four-channel digital storage scope with a color screen.

Key Specifications

Bandwidth	2 GHz
Sample rate	1 channel @ 4 GS/s, 2 channels @ 2 GS/s, 3 or 4 channels @ 1 GS/s
Number of Channels	4
Input Impedance	50 Ω
Vertical Sensitivity	10 mV to 1 V/div with calibrated fine adjustment
Resolution	8 bit
Time Base Range	200 ps to 10 s/div
Record length	50k samples per channel
Record Length (1M Option)	500 K points on 1 channel; 250 k points on 2 channels ; 130 k points on 3 or 4 channels
Record Length (2M Option)	8 M points on 1 channel; 4 M points on 2 channels ; 2 M points on 3 or 4 channels
Acquisition modes	sample, envelope, average, high-resolution, peak-detect
Display	Color; Zoom
Trigger modes	Edge, logic, pulse; Video trigger with option 05 (NTSC, SECAM, PAL, HDTV, and FlexFormat)
Storage	1.44 Mbyte, 3.5 inch, DOS 3.3-or-later floppy disk. NVRAM storage for saving waveforms, hardcopies, and setups. Units with option HD present (requires additional hardware) have a hard disk drive
I/O	Full GPIB programmability
Hardcopy	Using GPIB, RS-232, or Centronics ports

Software

• TDS700C/700D/714L V1.129 Field Adjustment Software (ZIP)
• TDS700C/700D/714L V1.129 Field Adjustment Software 063-3289-01 (ZIP)

• TDS Family Programming Examples Software 063-1134-00 V1.2 (ZIP)
• Waveform Converter For Oscilloscopes 066-0002-00 (ZIP)
• AWE Drivers For Tektronix Oscilloscopes 066-0087-00 (ZIP)
• File Transfer Utility From TDS Scope To PC 066-0104-00 (ZIP)
• Telecom Test and I-Pattern Software TTiP 066-0119-00 (ZIP)
• Enhanced Printing Utility for TDS Family 066-0125-00 (ZIP)
• TDS runtime Environment TDSRTE1 066-0127-00 (ZIP)
• Tektronix TDS500C/700C Custom Masks 066-0165-00 (ZIP)
• WFM to ASCII Waveform Converter - UNIX Version For Sun Spark Stations 066-0176-00 (ZIP)
• Hardcopy from TDS to PC Using HPIP 82335B Interface Card 066-0177-00 (ZIP)
• Example Program To Get Crossing Levels 066-0178-00 (ZIP)
• TDS ISF File To CSV File Conversion Utility 066-0179-00 (ZIP)
• TDS Sandisk Hard Disk Patch Utility 066-0183-00 (ZIP)
• Transfer 2 Byte Data From TDS Oscilloscopes QuickBasic 066-0188-00 (ZIP)
• TDS Waveform Logging Sample Program 066-0194-00 (ZIP)
• Load TDS Floppy MathCAD Files Into MathCAD 066-0196-00 (ZIP)
• Transfer TDS Hardcopy Screens To PC Via GPIB 066-0197-00 (ZIP)
• Transfer Setups Between TDS Oscilloscopes 066-0198-00 (ZIP)
• VB Program To Capture TDS Extended Waveforms 066-0200-00 (ZIP)
• TDS Series WFM File Formatter 066-0489-00 (ZIP)
• Tektronix Wavestar 2012.05.09.11.07.29 16456 EN 066-0934-03 (ZIP, 102MB) Product Key: WSTRO618650124

Firmware

• TDS794D v6.3e Firmware (ZIP)
• TDS794D v6.4e Firmware (ZIP)
• TDS794D v6.6e Firmware (ZIP)
• TDS794D v8.0e Firmware (ZIP)

Links

See the Repairs page regarding HDD/FDD replacements.

• Tek Forum threads:
  • Recovering the unit from a bricked state
  • Firmware updating
  • Backing up and restoring calibration data
• EEVBlog Forum Threads:
  • EEVBlog Forum thread on TDS options and how to enable them
  • Firmware update via GPIB
  • Serial debug and console interface card for TDS500-700 series
  • Console port debug adapter for TDS500-700 series
• Youtube
  • NVRAM module replacement - Near Far Media
  • Input hybrid repair - Near Far Media
  • Power supply repair - Near Far Media

• Simmconn Labs LCD replacement kits for CRT-based TDS O-scopes
• Wavestar Product Key
• TDS error log viewer
• Enabling options via GPIB interface - ko4bb.com

Pictures

TDS794D

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Internal

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  Option 05 Internal Parts

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  Option HD Internal Parts, 2.5" Disk Version

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  Option HD Internal Parts, PCMCIA Disk Version

TDS794 Probe (P6339A)

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  P6339A

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  P6339A

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  P6339A Open

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  P6339A Analog board top view

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  P6339A Analog board bottom view

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  P6339A logic board

Components

Some Parts Used in the TDS794D

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