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|image=TDS784D.jpg  
|image=TDS784D.jpg  
|caption=Tektronix TDS784D  
|caption=Tektronix TDS784D  
|introduced=(?)
|introduced=1995
|discontinued=(?)  
|discontinued=(?)  
|designers=
|designers=
|manuals=See Below
|manuals=
'''TDS784A'''
* [[Media:070-8991-02.pdf|TDS784A User 070-8991-02]] / <small>[[Media:070-8991-02 c2.pdf|Alternate copy]]</small>
* [[Media:070-8992-03.pdf|TDS784A Service 070-8992-03]]
* [[Media:070-9386-03.pdf|TDS700A Service 070-9386-03]]
* [[Media:070-9721-02.pdf|TDS700A Service 070-9721-02]]
* [[Media:070-8999-02.pdf|TDS784A Reference 070-8999-02]] / <small>[[Media:070-8999-02 c2.pdf|Alternate copy]]</small>
* [[Media:070-9382-01.pdf|TDS700A Reference 070-9382-01]]
* [[Media:070-8709-06.pdf|TDS700A Programmer 070-8709-06]]
* [[Media:070-8709-07.pdf|TDS700A Programmer 070-8709-07]]
* [[Media:070-9556-00.pdf|TDS784A etc Programmer 070-9556-00]]
* [[Media:070-8990-04.pdf|TDS784A Performance Verification and Specifications 070-8990-04]]
* [[Media:070-9384-01.pdf|TDS700A Performance Verification and Specifications 070-9384-01]]
* [[Media:070-9473-01.pdf|TDS784A Firmware Field Upgrade TDS 7U01 070-9473-01]]
* [[Media:070-9719-00.pdf|TDS700A Digitizing Oscilloscopes 070-9719-00]]
 
'''TDS784C'''
* [[Media:070-9861-00.pdf|TDS700C Reference 070-9861-00]] / <small>[[Media:070-9861-00 c2.pdf|Alternate copy]]</small>
* [[Media:070-9869-00.pdf|TDS700C User 070-9869-00]] / <small>[[Media:070-9869-00 c2.pdf|Alternate copy]]</small>
* [[Media:070-9874-02.pdf|TDS700C Technical Reference 070-9874-02]]
* [[Media:070-9875-04.pdf|TDS700C Service 070-9875-04]]
* [[Media:070-9876-00.pdf|TDS700C Programmers Manual 070-9876-00]]
* [[Media:071-0090-01.pdf|TDS700C User Manual Supplement 071-0090-01]] / <small>[[Media:071-0090-01 c2.pdf|Alternate copy]]</small>
 
'''TDS784D'''
* [[Media:071-0130-00.pdf|TDS700D User Manual 071-0130-00]]
* [[Media:071-0130-03.pdf|TDS700D User Manual 071-0130-03]]
* [[Media:071-0134-00.pdf|TDS700D User Manual Japanese 071-0134-00]]
* [[Media:071-0273-02.pdf|TDS700D User Manual Supplement 071-0273-02]]
* [[Media:071-0273-03.pdf|TDS700D User Manual Supplement EN/FR/DE/KR/JP 071-0273-03]]
* [[Media:071-0504-00.pdf|TDS700D Reference 071-0504-00]]
* [[Media:071-0627-02.pdf|TDS700D Service 071-0627-02]] / <small>[[Media:071-0627-02 c2.pdf|Alternate copy]]</small>
* [[Media:071-0630-03.pdf|TDS700D Performance Verification and Specifications 071-0630-03]]
* [[Media:071-0875-00.pdf|TDSJIT1V2 Jitter Analysis Measurements Application 071-0875-00]]
* [[Media:55W_11336_2.pdf|TDS700D Datasheet 55W_11336_2]]
* [[Media:55W_11336_3.pdf|TDS700D Datasheet 55W_11336_3]]
* [[Media:TDS700D_Datasheet_55W_11336_4.pdf|TDS700D Datasheet 55W_11336_4]]
 
'''Common'''
* [[Media:061-4094-02.pdf|TDS, TLS & CTS FDD Replacement 061-4094-02]]
* [[Media:070-8432-04.pdf|TLS Logic Scope and TDS Series Oscilloscopes Rackmount Installation 070-8432-04]]
* [[Media:070-8567-01.pdf|Option 13 RS-232/Centronics Hardcopy Interface Instruction Manual 070-8567-01]]
* [[Media:070-8582-01.pdf|Option 2F Advanced DSP Math Instruction Manual 070-8582-01]]
* [[Media:070-8748-02.pdf|TDS Family Opt 05 Video Trigger Interface Instruction Manual 070-8709-02]]
* [[Media:070-8919-00.pdf|TTiP TDS Telecommunication Templates & i-Pattern Software 070-8919-00]]
* [[Media:070-9636-02.pdf|TDS Family Opt 05 Video Trigger Interface Install 070-9636-02]]
* [[Media:070-9785-03.pdf|WaveStar Software User Manual 070-9785-03]]
* [[Media:071-0174-02.pdf|TDSDDM1 Disk Drive Measurement Application User Manual 071-0174-02]]
* [[Media:071-0203-01.pdf|TDSPWR1 Power Analysis Applications User Manual 071-0203-01]]
* [[Media:071-0204-01.pdf|TDSPRT1 Enhanced Printing Application User Manual 071-0204-01]]
* [[Media:071-0220-07.pdf|WSTRO & WSTROU WaveStar Software User Manual 071-0220-07]]
* [[Media:071-0220-09.pdf|WSTRO WaveStar Software User Manual 071-0220-09]]
* [[Media:071-0375-00.pdf|TDXF2C, TDSXF3C, TDSXF4C, TDSXF1M2 & TDSXF1M4 Upgrades 071-0375-00]]
* [[Media:071-0375-02.pdf|TDXF2C, TDSXF3C, TDSXF4C, TDSXF1M2 & TDSXF1M4 Upgrades 071-0375-02]]
* [[Media:071-0442-02.pdf|TDS500C/500D/600C/700C,D,L HDD Upgrade 071-0442-02]]
* [[Media:071-0581-00.pdf|TDSPSM1 Processor Specifications Measurements Application User Manual 071-0581-00]]
* [[Media:071-0605-00.pdf|TDSCPM1 Communications Pulse Measurements Application 071-0605-00]]
* [[Media:071-0606-00.pdf|TDSCEM1 Communications Eye-Diagram Measurements Application 071-0606-00]]
* [[Media:071-0817-00.pdf|WSTRO, WSTROU & WSTRM WaveStar Software, AD007 GPIB-LAN Adapter, TDS3EM Ethernet Comms Module User Manual 071-0817-00]]
* [[Media:071-1140-03.pdf|WaveStar Software, Wavestar Reader, AD007 GPIB-LAN Adapter Software Solutions Installation 071-1140-03]]
* [[Media:55W_12028_0.pdf|TDSPWR1 Power Measurement Software Datasheet 55W_12028_0]]
* [[Media:55W_12056_0.pdf|TDSDDM1 Disk Drive Measurement Software Datasheet 55W_12056_0]]
 
}}
}}
The '''Tektronix TDS784''' is a 1 GHz, 4 GS/s four-channel digital storage scope with a color screen.<br>
There are four variants, all with the same specs but different hardware/software loads − TDS784A, B, C & D. Of these, the C and D models are the least problematic and most sought-after.


The '''Tektronix TDS784''' is a 1 GHz, 4 GS/s quad-channel digital storage scope.
{{BeginSpecs}}
{{Spec | Bandwidth  | 1 GHz at 10 mv/div and above; 750 MHz @ 5 mV/div; 600 MHz @ 2 mV/div; 500 MHz @ 1 mV/div }}
{{Spec | Sample rate | 1 channel @ 4 GS/s, 2 channels @ 2 GS/s, 3 or 4 channels @ 1 GS/s }}
{{Spec | Number of Channels | 4 }}
{{Spec | Vertical Sensitivity| 1 mV to 10 V/div with calibrated fine adjustment }}
{{Spec | Resolution  | 8 bit }}
{{Spec | Time Base Range| 200 ps to 10 s/div }}
{{Spec | Record length | 50k samples per channel }}
{{Spec | Record Length (1M Option)| 500 K points on 1 channel;  250 k points on 2 channels ; 130 k points on 3 or 4 channels }}
{{Spec | Record Length (2M Option)| 8 M points on 1 channel;  4 M points on 2 channels ; 2 M points on 3 or 4 channels }}
{{Spec | Acquisition modes | sample, envelope, average, high-resolution, peak-detect }}
{{Spec | Display  | Color; Zoom }}
{{Spec | Trigger modes | Edge, logic, pulse; Video trigger with option 05 ([[NTSC]], [[SECAM]], [[PAL]], HDTV, and FlexFormat) }}
{{Spec | 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 }}
{{Spec | I/O | Full GPIB programmability }}
{{Spec | Hardcopy | Using [[GPIB]], [[RS-232]], or Centronics ports }}
{{EndSpecs}}


There are four variants, all with the same specs but different hardware/software loads − TDS784A, B, C & D. Of these, the C and D models are the least problematic and most sought-after.
==Software==
* [[Media:TDS500B-700-700A_Field_Adjustment_Software_063-2601-00.zip|TDS700/700A Field Adjustment Software 063-2601-00]] (ZIP)
* [[Media:TDS500C_700C_Field_Adjustment_Software_063-2774-01.zip|TDS700C Field Adjustment Software 063-2774-01]] (ZIP)
* [[Media:TDS500C-500D-700C-700D-714L_V1.129_Field_Adjustment_Software.zip|TDS700C/700D/714L V1.129 Field Adjustment Software]] (ZIP)
* [[Media:TDS500C-500D-700C-700D-714L_V1.129_Field_Adjustment_Software_063-3289-01.zip|TDS700C/700D/714L V1.129 Field Adjustment Software 063-3289-01]] (ZIP)
<br>
* [[Media:063-1134-00 V1.2.zip|TDS Family Programming Examples Software 063-1134-00 V1.2]] (ZIP)
* [[Media:066-0002-00.zip|Waveform Converter For Oscilloscopes 066-0002-00]] (ZIP)
* [[Media:066-0087-00.zip|AWE Drivers For Tektronix Oscilloscopes 066-0087-00]] (ZIP)
* [[Media:066-0104-00.zip|File Transfer Utility From TDS Scope To PC 066-0104-00]] (ZIP)
* [[Media:Ttip.zip|Telecom Test and I-Pattern Software TTiP 066-0119-00]] (ZIP)
* [[Media:066-0125-00.zip|Enhanced Printing Utility for TDS Family 066-0125-00]] (ZIP)
* [[Media:Tdsrteup_(TDS_runtime_Environment_TDSRTE1).zip|TDS runtime Environment TDSRTE1 066-0127-00]] (ZIP)
* [[Media:066-0165-00.zip|Tektronix TDS500C/700C Custom Masks 066-0165-00]] (ZIP)
* [[Media:066-0176-00.zip|WFM to ASCII Waveform Converter - UNIX Version For Sun Spark Stations 066-0176-00]] (ZIP)
* [[Media:066-0177-00.zip|Hardcopy from TDS to PC Using HPIP 82335B Interface Card 066-0177-00]] (ZIP)
* [[Media:066-0178-00.zip|Example Program To Get Crossing Levels 066-0178-00]] (ZIP)
* [[Media:066-0179-00.zip|TDS ISF File To CSV File Conversion Utility 066-0179-00]] (ZIP)
* [[Media:066-0183-00.zip|TDS Sandisk Hard Disk Patch Utility 066-0183-00]] (ZIP)
* [[Media:066-0188-00.zip|Transfer 2 Byte Data From TDS Oscilloscopes QuickBasic 066-0188-00]] (ZIP)
* [[Media:066-0194-00.zip|TDS Waveform Logging Sample Program 066-0194-00]] (ZIP)
* [[Media:066-0196-00.zip|Load TDS Floppy MathCAD Files Into MathCAD 066-0196-00]] (ZIP)
* [[Media:066-0197-00.zip|Transfer TDS Hardcopy Screens To PC Via GPIB 066-0197-00]] (ZIP)
* [[Media:066-0198-00.zip|Transfer Setups Between TDS Oscilloscopes 066-0198-00]] (ZIP)
* [[Media:066-0200-00.zip|VB Program To Capture TDS Extended Waveforms 066-0200-00]] (ZIP)
* [[Media:066-0489-00.zip|TDS Series WFM File Formatter 066-0489-00]] (ZIP)
* [[Media:Wavestar_2012.05.09.11.07.29_16456_EN.zip|Tektronix Wavestar 2012.05.09.11.07.29 16456 EN 066-0934-03]] (ZIP, 102MB) ''Product Key: WSTRO618650124''


==Specifications==
==Firmware==
===Acquisition===
* [[Media:TDS784C_v5.0e_Firmware.zip|TDS784C v5.0e Firmware]] (ZIP)
* Sample rate: 1 channel @ 4 GS/s, 2 channels @ 2 GS/s, 3 or 4 channels @ 1 GS/s
* [[Media:TDS784C_5.2e_Firmware.zip|TDS784C v5.2e Firmware]] (ZIP)
* Analog bandwidth: 1 mV/div: 500 MHz, 2 mV/div: 600 MHz, 5 mV/div: 750 MHz, >= 10 mV/div: 1 GHz
* [[Media:TDS784C_v5.3e_Firmware.zip|TDS784C v5.3e Firmware]] (ZIP)
* Resolution: 8 bit
* Record lengths: 50k samples per channel (500k with option 1M)
* Modes: sample, envelope, average, high-resolution, and peak-detect
===Misc===
* Display: color; Zoom
* Trigger modes Include: edge, logic, and 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 output using [[GPIB]], [[RS-232]], or Centronics ports


==Manuals==
* [[Media:TDS784D_v6.3e_Firmware.zip|TDS784D v6.3e Firmware]] (ZIP)
* [https://w140.com/tekwiki/images/c/cd/070-8709-07.pdf TDS 410A, 420A, 460A, 520A, 524A, 540A, 544A, 620A, 640A, 644A, 684A, 744A & 784A Programmer Manual 070-8709-07 (PDF)]
* [[Media:TDS784D_v6.4e_Firmware.zip|TDS784D v6.4e Firmware]] (ZIP)
* [https://w140.com/tekwiki/wiki/File:070-8990-04.pdf TDS684A, 744A, 784A Performance Verification and Specifications 070-8990-04 (PDF)]
* [[Media:TDS784D_v6.6e_Firmware.zip|TDS784D v6.6e Firmware]] (ZIP)
* [https://w140.com/tekwiki/images/4/40/TDS684A-744A-784A_User_Manual_070-8991-02.pdf Tektronix TDS684A, 744A, 784A User Manual 070-8991-02 (PDF)]
* [http://w140.com/tek_tds_684a_744a_784a_service.pdf Tektronix TDS 684A, 744A, and 784A Service Manual 070-8992-03 (PDF)]
* [https://w140.com/tekwiki/images/9/90/TDS684A-744A-784A_Reference_070-8999-02.pdf TDS684A, 744A, 784A Reference 070-8999-02 (PDF)]
* [http://w140.com/tek_tech_ref_TDS_520B_540B_620B_644B_680B_684B_724A_744A_784A.pdf TDS 520B, 540B, 620B, 644B, 680B, 684B, 724A, 744A, and 784A Digitizing Oscilloscopes Performance Verification and Specifications 070-9384-01 (PDF)]
* [https://w140.com/tekwiki/images/4/41/070-9386-03.pdf Tektronix TDS520B, 540B, 620B, 644B, 680B, 684B, 724A, 744A, 784A Service Manual 070-9386-03 (PDF)]
* [http://w140.com/manual_TDS754A.pdf TDS 500B, 600B, and 700A Digitizing Oscilloscopes 070-9719-00 (PDF)]
* [https://w140.com/tekwiki/images/3/37/TDS500C-600B-700C_Reference_070-9861-00.pdf Tektronix TDS500C, 600B, 700C Reference 070-9861-00 (PDF)]
* [https://w140.com/tekwiki/images/7/77/TDS500C-600B-700C_User_Manual_070-9869-00.pdf Tektronix TDS500C, 600B, 700C User Manual 070-9869-00 (PDF)]
* [https://w140.com/tekwiki/wiki/File:070-9874-02.pdf TDS500C-600B-700C Technical Reference 070-9874-02 (PDF)]
* [https://w140.com/tekwiki/images/a/a3/070-9875-04.pdf Tektronix TDS500C, 600B, 700C Service Manual 070-9875-04 (PDF)]
* [https://w140.com/tekwiki/images/d/d9/TDS500C-600B-700C_User_Manual_Supplement_071-0090-01.pdf Tektronix TDS500C, 600B, 700C User Manual Supplement 071-0090-01 (PDF)]
* [https://w140.com/tekwiki/images/4/43/071-0273-02.pdf Tektronix TDS500D, 600C, 700D User Manual Supplement 071-0273-02 (PDF)]
* [https://w140.com/tekwiki/images/6/6d/071-0273-03.pdf Tektronix TDS500D, 600C, 700D User Manual Supplement EN/FR/DE/KR/JP 071-0273-03 (PDF)]
* [https://w140.com/tekwiki/images/a/a6/TDS500CD-600C-700CDL_HDD_Upgrade_Manual_071-0442-02.pdf Tektronix TDS500C/D, 600C, 700C/D/L HDD Upgrade Manual 071-0442-02 (PDF)]
* [https://w140.com/tekwiki/images/c/c4/071-0504-00.pdf Tektronix TDS500D, 600C, 700D Reference 071-0504-00 (PDF)]
* [https://w140.com/tekwiki/images/7/7c/TDS500D-600C-700D-714L_Service_Manual_071-0627-02.pdf Tektronix TDS500D, 600C, 700D, 714L Service Manual 071-0627-02 (PDF)]
* [https://w140.com/tekwiki/images/5/57/071-0630-03.pdf Tektronix TDS500D, 600C, 700D, 714L Performance Verification and Specifications 071-0630-03 (PDF)]
* [https://w140.com/tekwiki/images/9/90/TDS700D_Datasheet_55W_11336_4.pdf Tektronix TDS700D Datasheet 55W_11336_4 (PDF)]


==Software==
* [[Media:TDS784D_v7.1.1e_Firmware.zip|TDS784D v7.1.1e Firmware]] (ZIP)
* [https://w140.com/tekwiki/wiki/File:TDS700A_Field_Adjustment_Software_PN_063260100.zip TDS700A Field Adjustment Software 063260100 (ZIP)]
* [[Media:TDS784D_v7.2e_Firmware.zip|TDS784D v7.2e Firmware]] (ZIP)
* [https://w140.com/tekwiki/wiki/File:TDS700C_Field_Adjustment_Software_PN_063277401.zip TDS700C Field Adjustment Software 063277401 (ZIP)]
* [[Media:TDS784D_v7.4e_Firmware.zip|TDS784D v7.4e Firmware]] (ZIP)
* [https://w140.com/tekwiki/images/2/2e/TDS300-400-500-600-700-800_AWE_Drivers_066008700.zip Tektronix TDS300, 400, 500, 600, 700, 800 AWE Drivers 066008700 (ZIP)]
* [https://w140.com/tekwiki/images/9/9a/TDS520C-540C-580C-724C-754C-784C_Custom_Masks.zip Tektronix TDS520C, 540C, 580C, 724C, 754C, 784C Custom Masks (ZIP)]
* [https://w140.com/tekwiki/images/7/78/Wavestar_2012.05.09.11.07.29_16456_EN.zip Tektronix Wavestar 2012.05.09.11.07.29 16456 EN (ZIP) (102Mb)]


==Options==
==Options==
* 05 - Video Trigger                              - Oscilloscope comes with tools that allow investigation of a range of NTSC, PAL, SECAM, and high definition TV signals.
* 05 - Video Trigger                              - Oscilloscope comes with tools that allow investigation of a range of NTSC, PAL, SECAM, and high definition TV signals.
* 1M - 4M acquisition length                      - Extends standard acquisition length from 50,000 points per channel to 130,000 samples on three or four channels, 250,000 samples on two channels, and 500,000 samples on one channel.
* 13 - RS-232C and Centronics hardcopy interfaces - Add RS-232-C and Centronics interface ports.
* 13 - RS-232C and Centronics hardcopy interfaces - Add RS-232-C and Centronics interface ports.
* 1F - Floppy disk drive                          - Add 3.5 inch, 1.44 MByte floppy disc drive.
* 1F - Floppy disk drive                          - Add 3.5 inch, 1.44 MByte floppy disc drive.
* 1G - 1 GS/s maximum                            - Limit sample rate from 5 GS/sec to 1 GS/sec when acquiring 1 to 4 channels (Export restriction compliance). (TDS 754D Only)
* 1M - 4M acquisition length                      - Extends standard acquisition length from 50,000 points per channel to 130,000 samples on three or four channels, 250,000 samples on two channels, and 500,000 samples on one channel.
* 2C - Communication Signal Analyzer              - Oscilloscope comes configured for communications signal triggering and mask testing.
* 2F - Advanced DSP math                          - Add advanced DSP math features such as FFT, integration, and differentiation.
* 2F - Advanced DSP math                          - Add advanced DSP math features such as FFT, integration, and differentiation.
* 2C - Communication Signal Analyzer              - Oscilloscope comes configured for communications signal triggering and mask testing.
* 2M - 8M acquisition length                      - TDS 520D, 724D: To 2M samples on two channels and 4M on one channel. TDS 540D, 580D, 714L, 754D, 784D, 794D: To 2M samples on three or four channels, 4M on two channels, and 8M samples on one channel (Option includes a hard disk and is only available for the models listed above.)
* 3C - P6701B with system calibration            - Oscilloscope comes with a P6701B and calibrated short-wavelength optical reference receiver on channel 1.
* 3C - P6701B with system calibration            - Oscilloscope comes with a P6701B and calibrated short-wavelength optical reference receiver on channel 1.
* 4C - P6703B with system calibration            - Oscilloscope comes with a P6703B and calibrated long-wavelength optical reference receiver on channel 1.
* 4C - P6703B with system calibration            - Oscilloscope comes with a P6703B and calibrated long-wavelength optical reference receiver on channel 1.
* 2M - 8M acquisition length                      - TDS 520D, 724D: To 2M samples on two channels and 4M on one channel. TDS 540D, 580D, 714L, 754D, 784D, 794D: To 2M samples on three or four channels, 4M on two channels, and 8M samples on one channel (Option includes a hard disk and is only available for the models listed above.)
* HD - Hard Disk                                  - 170Mb internal hard disk drive.
 
==Optional Accessories==
* 1K - Add K420 scope cart
* 1R - Rackmount kit
* 24 - Add 4 each P6139A passive probes
* 26 - Add 4 each P6245 active probes
* 3I/3P - Colour printer and cable (220V/110V)
* B2 - Hardcopy version of the programmers manual
* L1 - Substitute French user manual
* L3 - Substitute German user manual
* L5 - Substitute Japanese user manual
* L9 - Substitute Korean user manual
 
==Included Accessories==
* 020-2204-00 - Quick Reference in 8 languages
* 070-6869-00 - User Manual
* 070-9874-01 - Technical Reference
* 063-2773-00 - Programmer's Manual in MS-Help format on floppy disk
* NIST, MIL-STD-45662A and ISO9000 calibration certificate
* 200-3696-01 - Front cover
* 161-0230-01 - US power cord
* 016-1268-00 - Accessory pouch
 
==Recommended Accessories==
* 070-9875-00 - Service Manual
* 012-0991-01 - 1m GPIB cable
* 012-0991-00 - 2m GPIB cable
* 012-1298-00 - RS-232 cable
* 012-1250-00 - Centronics cable
* 016-0909-01 - Soft-sided carrying case
* 016-01135-00 - Transit case
* K420 - Scope cart
 
==Software Options==
* LVWIN - LabVIEW for PC Windows OS
* LWCVI - LabWindows for CVI system
* LWDOS - LabWindows for DOS OS
* S3FT400 - WaveWriter AWG and waveform creation software
* TTiP - Telecommunications Templates and i-Pattern software
* WSTR31 - WaveStar waveform capture and documentation software


==Links==
==Links==
See the [[TDS794D/Repairs|Repairs page]] regarding HDD/FDD replacements.
* Tek Forum threads:
* Tek Forum threads:
** [http://forum.tek.com/viewtopic.php?f=568&t=140017/  Recovering the unit from a bricked state]
** [http://forum.tek.com/viewtopic.php?f=568&t=140017/  Recovering the unit from a bricked state]
Line 77: Line 196:
** [http://forum.tek.com/viewtopic.php?f=568&t=138168&hilit=TDS784/ Backing up and restoring calibration data]
** [http://forum.tek.com/viewtopic.php?f=568&t=138168&hilit=TDS784/ Backing up and restoring calibration data]
* EEVBlog Forum Threads:
* EEVBlog Forum Threads:
** [http://www.eevblog.com/forum/testgear/conversion-of-500mhz-tds744a-to-1ghz-tds784a/ Conversion of 500 MHz TDS744A to 1 GHz TDS784A]
** [http://www.eevblog.com/forum/testgear/hackingupgrading-old-scope-(tds754d)/ EEVBlog Forum thread on TDS options and how to enable them]
** [http://www.eevblog.com/forum/testgear/hackingupgrading-old-scope-(tds754d)/ EEVBlog Forum thread on TDS options and how to enable them]
** [https://www.eevblog.com/forum/repair/unified-tektool-released-!-(firmware-flash-tools-for-old-tds-series)/ Firmware update via GPIB]
** [https://www.eevblog.com/forum/repair/unified-tektool-released-!-(firmware-flash-tools-for-old-tds-series)/ Firmware update via GPIB]
** [https://www.eevblog.com/forum/repair/tektronix-tds500-700-debug-konscole-interface/ Serial debug and console interface card for TDS500-700 series]
** [https://www.eevblog.com/forum/testgear/console-port-debug-adapter-for-tek-tds500-tds600-and-tds700-series-scopes/ Console port debug adapter for TDS500-700 series]
* Youtube
** [https://www.youtube.com/watch?v=ve-MnHakY6Y NVRAM module replacement - Near Far Media]
** [https://www.youtube.com/watch?v=b0P1sJBomDQ Input hybrid repair - Near Far Media]
** [https://www.youtube.com/watch?v=ZsxKTOmeZ2k Power supply repair - Near Far Media]
* [https://simmconnlabscom.ipage.com/store/page5.html Simmconn Labs LCD replacement kits for CRT-based TDS O-scopes]
* [https://simmconnlabscom.ipage.com/store/page5.html Simmconn Labs LCD replacement kits for CRT-based TDS O-scopes]
* [https://www.tek.com/support/faqs/i-lost-my-wavestar-keycode-how-can-i-get-it-back Wavestar Product Key]
* [https://www.hakanh.com/dl/TDSErrLog.htm TDS error log viewer]
* [http://www.ko4bb.com/getsimple/index.php?id=enable-tds754d-options Enabling options via GPIB interface - ko4bb.com]


==Internals==
==Internals==
Line 87: Line 215:
It is also worth noting the [[TDS754]] and TDS784 series are nearly identical, with the differences being in front-panel cosmetics and the presence (754) or absence (784) of a few capacitors on the acquisition board. The only other difference is the position of instrument ID jumpers, also on the acquisition board. In fact, it is entirely possible to convert a 754 to a 784 (see the 'Links' section).
It is also worth noting the [[TDS754]] and TDS784 series are nearly identical, with the differences being in front-panel cosmetics and the presence (754) or absence (784) of a few capacitors on the acquisition board. The only other difference is the position of instrument ID jumpers, also on the acquisition board. In fact, it is entirely possible to convert a 754 to a 784 (see the 'Links' section).


Note that any kind of firmware updating of the 784 (and most other similar TDS scopes) requires very specific equipment, starting with an older computer (ISA slots required) running MS-DOS 5.x or later as well as Windows 98SE. To interface with the scope, you will need a National Instruments PC/GPIB-II ISA-based (8-bit) GPIB board or a National Instruments AT-GPIB (16-bit) board and appropriate drivers. The software required to do the update (Tektool or Tekfwtool) also runs under DOS (or a DOS box in Windows 98). Information on this tool can be found in the ''Links'' section in the thread describing firmware updates.
<del>Note that any kind of firmware updating of the 784 (and most other similar TDS scopes) requires very specific equipment, starting with an older computer (ISA slots required) running MS-DOS 5.x or later as well as Windows 98SE. To interface with the scope, you will need a National Instruments PC/GPIB-II ISA-based (8-bit) GPIB board or a National Instruments AT-GPIB (16-bit) board and appropriate drivers. The software required to do the update (Tektool or Tekfwtool) also runs under DOS (or a DOS box in Windows 98). Information on this tool can be found in the ''Links'' section in the thread describing firmware updates.</del><br>
Using the 'Unified Tektool', a firmware update can be achieved using a standard USB-GPIB adapter [https://www.eevblog.com/forum/repair/unified-tektool-released-!-(firmware-flash-tools-for-old-tds-series)/msg3758918/#msg3758918 as detailed in this link]. Be sure to backup BOTH your firmware AND NVRAM before writing the new firmware in!<br>
If the new firmware does not work in your scope, a full clear of the firmware and NVRAM and then loading your backed up firmware and NVRAM back in will have it working again on the original firmware.
 


Actual calibration requires the above computer, the specific PC/GPIB-II card and drivers and an MS-DOS environment. You will also need an Analogic/Data Precision model 8200 DC voltage standard and a levelled sine-wave generator capable of going up to 1 GHz (if you're just doing a 754, you can get away with a 500 MHz top end). Naturally, Tek used the [[SG503]] and [[SG504]].
Actual calibration requires the above computer, the specific PC/GPIB-II card and drivers and an MS-DOS environment. You will also need an Analogic/Data Precision model 8200 DC voltage standard and a levelled sine-wave generator capable of going up to 1 GHz (if you're just doing a 754, you can get away with a 500 MHz top end). Naturally, Tek used the [[SG503]] and [[SG504]].
Line 99: Line 230:
==Pictures==
==Pictures==
<gallery>
<gallery>
Tek TDS784A 01.jpg
Tek TDS784A 01.jpg|Front View
Tek TDS784A 02.jpg
Tek TDS784A 02.jpg|Rear View without Opt. 13
TDS5-6-700_Option_05_TV_Trigger_Internal_Parts.jpg|Option 05 Internal Parts
TDS5-6-700_Option_HD_HDD_Internal_Parts.jpg|Option HD Internal Parts, 2.5" Disk Version
TDS5-6-700_Option_HD_PCMCIA_Internal_Parts.jpg|Option HD Internal Parts, PCMCIA Disk Version
</gallery>
</gallery>


==Components==
{{Parts|TDS784A}}
{{Parts|TDS784B}}
{{Parts|TDS784C}}
{{Parts|TDS784D}}


[[Category:TDS700 series scopes]]
[[Category:TDS700 series scopes]]

Latest revision as of 06:45, 6 December 2023

Tektronix TDS784
1 GHz, 4 GS/s 4-channel digital scope
Tektronix TDS784D

Produced from 1995 to (?)

Manuals

TDS784A

TDS784C

TDS784D

Common

(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix TDS784 is a 1 GHz, 4 GS/s four-channel digital storage scope with a color screen.
There are four variants, all with the same specs but different hardware/software loads − TDS784A, B, C & D. Of these, the C and D models are the least problematic and most sought-after.

Key Specifications

Bandwidth 1 GHz at 10 mv/div and above; 750 MHz @ 5 mV/div; 600 MHz @ 2 mV/div; 500 MHz @ 1 mV/div
Sample rate 1 channel @ 4 GS/s, 2 channels @ 2 GS/s, 3 or 4 channels @ 1 GS/s
Number of Channels 4
Vertical Sensitivity 1 mV to 10 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


Firmware

Options

  • 05 - Video Trigger - Oscilloscope comes with tools that allow investigation of a range of NTSC, PAL, SECAM, and high definition TV signals.
  • 13 - RS-232C and Centronics hardcopy interfaces - Add RS-232-C and Centronics interface ports.
  • 1F - Floppy disk drive - Add 3.5 inch, 1.44 MByte floppy disc drive.
  • 1G - 1 GS/s maximum - Limit sample rate from 5 GS/sec to 1 GS/sec when acquiring 1 to 4 channels (Export restriction compliance). (TDS 754D Only)
  • 1M - 4M acquisition length - Extends standard acquisition length from 50,000 points per channel to 130,000 samples on three or four channels, 250,000 samples on two channels, and 500,000 samples on one channel.
  • 2C - Communication Signal Analyzer - Oscilloscope comes configured for communications signal triggering and mask testing.
  • 2F - Advanced DSP math - Add advanced DSP math features such as FFT, integration, and differentiation.
  • 2M - 8M acquisition length - TDS 520D, 724D: To 2M samples on two channels and 4M on one channel. TDS 540D, 580D, 714L, 754D, 784D, 794D: To 2M samples on three or four channels, 4M on two channels, and 8M samples on one channel (Option includes a hard disk and is only available for the models listed above.)
  • 3C - P6701B with system calibration - Oscilloscope comes with a P6701B and calibrated short-wavelength optical reference receiver on channel 1.
  • 4C - P6703B with system calibration - Oscilloscope comes with a P6703B and calibrated long-wavelength optical reference receiver on channel 1.
  • HD - Hard Disk - 170Mb internal hard disk drive.

Optional Accessories

  • 1K - Add K420 scope cart
  • 1R - Rackmount kit
  • 24 - Add 4 each P6139A passive probes
  • 26 - Add 4 each P6245 active probes
  • 3I/3P - Colour printer and cable (220V/110V)
  • B2 - Hardcopy version of the programmers manual
  • L1 - Substitute French user manual
  • L3 - Substitute German user manual
  • L5 - Substitute Japanese user manual
  • L9 - Substitute Korean user manual

Included Accessories

  • 020-2204-00 - Quick Reference in 8 languages
  • 070-6869-00 - User Manual
  • 070-9874-01 - Technical Reference
  • 063-2773-00 - Programmer's Manual in MS-Help format on floppy disk
  • NIST, MIL-STD-45662A and ISO9000 calibration certificate
  • 200-3696-01 - Front cover
  • 161-0230-01 - US power cord
  • 016-1268-00 - Accessory pouch

Recommended Accessories

  • 070-9875-00 - Service Manual
  • 012-0991-01 - 1m GPIB cable
  • 012-0991-00 - 2m GPIB cable
  • 012-1298-00 - RS-232 cable
  • 012-1250-00 - Centronics cable
  • 016-0909-01 - Soft-sided carrying case
  • 016-01135-00 - Transit case
  • K420 - Scope cart

Software Options

  • LVWIN - LabVIEW for PC Windows OS
  • LWCVI - LabWindows for CVI system
  • LWDOS - LabWindows for DOS OS
  • S3FT400 - WaveWriter AWG and waveform creation software
  • TTiP - Telecommunications Templates and i-Pattern software
  • WSTR31 - WaveStar waveform capture and documentation software

Links

See the Repairs page regarding HDD/FDD replacements.

Internals

For units with serial numbers prior to B04xxxx, the latest known firmware revision is 6.6e. For units with serial numbers B04xxxx and above, the last known version is 7.4e. Note that, due to differences in acquisition and CPU board hardware, release 7.4e will not work in the earlier revision units. Early revision units may have a CPU board P/N of 679-4172-00. The later revision is 679-4349-00.

It is also worth noting the TDS754 and TDS784 series are nearly identical, with the differences being in front-panel cosmetics and the presence (754) or absence (784) of a few capacitors on the acquisition board. The only other difference is the position of instrument ID jumpers, also on the acquisition board. In fact, it is entirely possible to convert a 754 to a 784 (see the 'Links' section).

Note that any kind of firmware updating of the 784 (and most other similar TDS scopes) requires very specific equipment, starting with an older computer (ISA slots required) running MS-DOS 5.x or later as well as Windows 98SE. To interface with the scope, you will need a National Instruments PC/GPIB-II ISA-based (8-bit) GPIB board or a National Instruments AT-GPIB (16-bit) board and appropriate drivers. The software required to do the update (Tektool or Tekfwtool) also runs under DOS (or a DOS box in Windows 98). Information on this tool can be found in the Links section in the thread describing firmware updates.
Using the 'Unified Tektool', a firmware update can be achieved using a standard USB-GPIB adapter as detailed in this link. Be sure to backup BOTH your firmware AND NVRAM before writing the new firmware in!
If the new firmware does not work in your scope, a full clear of the firmware and NVRAM and then loading your backed up firmware and NVRAM back in will have it working again on the original firmware.


Actual calibration requires the above computer, the specific PC/GPIB-II card and drivers and an MS-DOS environment. You will also need an Analogic/Data Precision model 8200 DC voltage standard and a levelled sine-wave generator capable of going up to 1 GHz (if you're just doing a 754, you can get away with a 500 MHz top end). Naturally, Tek used the SG503 and SG504.

The reason for the specific model of voltage standard is because that's the model Tektronix wrote the calibration software for. During the calibration process, it issues automated commands specific to the Analogic.

Note that in the TDS700D series, the acquisition board variant is important — the CPU Board with Firmware 7.xx cannot be used together with the old acquisition board, and the CPU board with old Firmware 6.xx doesn't run with the new acquisition board. The fact that the CPU board has part number 671-4349-00 is by itself not a reliable indication of a compatible firmware version.

Finally, for those with a dimming CRT, Simmconn Labs has developed a color LCD panel kit to replace said CRT in most of the TDS series which use them.

Pictures

  • Front View

    Front View

  • Rear View without Opt. 13

    Rear View without Opt. 13

  • Option 05 Internal Parts

    Option 05 Internal Parts

  • Option HD Internal Parts, 2.5" Disk Version

    Option HD Internal Parts, 2.5" Disk Version

  • Option HD Internal Parts, PCMCIA Disk Version

    Option HD Internal Parts, PCMCIA Disk Version

Components

Some Parts Used in the TDS784A

(no results)


Some Parts Used in the TDS784B

(no results)


Some Parts Used in the TDS784C

(no results)


Some Parts Used in the TDS784D

Part Part Number(s) Class Description Used in
M377 165-2129-03 • 165-2089-06 • 155-2089-05 Monolithic integrated circuit amplifier 11A16 • 11A32 • 11A33 • 11A34 • 11A52 • 2245 • 2245A • 2247 • 2247A • 2252 • TDS410 • TDS420 • TDS460 • TDS520D • TDS540D • TDS580D • TDS680C • TDS684C • TDS714L • TDS724D • TDS754D • TDS784D
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