Tektronix TDS794D 4 CH Oscilloscope 2GHz 4GS/s 13 1F 2M 2F 2C LCD

Description

Tektronix TDS794D 4 CH Oscilloscope 2GHz 4GS/s 13 1F 2M 2F 2C LCD
There is a new LCD installed.
The rear VGA port is still usable with this LCD installed.
The LCD upgrade alone is a 0 in parts upgrade.  The LCD upgrade also shaves off
more than 5 pounds in weight vs the old CRT and driver board and the amount of heat
generated by this scope is significantly less now. (Beware of LCD upgrades which disable
the rear VGA port. With this port disabled, you are stuck with only using the front LCD as
a method of display. With the rear VGA port enabled, you can attach a rather large external
VGA monitor.)
Passes self test. Passes SPC more than 15 times in a row.  After running the self tests and SPC, no additional errors appear in the error log.
2Ghz bandwidth was tested ok on all 4 channels.
13 - Add RS-232C and Centronics hardcopy interfaces
1F - Floppy disc drive
2M - Extends standard acquisition length from 50,000 points per channel to 2 million samples on three or four channels, 4 million samples on two channels, and 8 million samples on one channel.
2F - Extended waveform math: FFT, integration and differentiation
2C - Communication Signal Analyzer; includes comm triggers and communication mask testing.
This scope does not accept 1M ohm passive probes. It will only operate in 50 Ohm mode and should be used with active probes.
The tekprobe interface was tested ok on all 4 channels.
Power cord is not included.
Probes and signal generator are not included.
There are scuffs, scratches, sticker residue and worn spots.
All buttons and knobs work. GPIB and Floppy works.
May need calibration.
READ BELOW ONLY IF YOU NEED REPAIRS ON YOUR OSCILLOSCOPE
T
DS700 Series Oscilloscope Repair and Upgrade. (For US addresses only)
This service is offered for work performed on your oscilloscope.  Tektronix oscilloscopes including TDS644B, TDS744A, TDS754A, TDS754C, TDS754D, TDS784A, TDS784C, TDS784D,  If your scope is not in the list, you can always message me to see what I can do for you.  TDS5xxA, TDS6xxA, TDS694C and TDS794D are repairable but I am not offering repairs on these models at this time unless the issue is only a CRT issue. This offer is not a guarantee I can fix your scope, some scopes have issues that require parts that are no longer available.  In fact Tektronix makes little attempt to repair these scopes and would prefer to just sell you a replacement already working scope for allot more $.  In the event I can’t repair your scope, the scope would be returned to you so you would be out the time and the shipping fees which for the lower 48 would likely be no more than 0 shipping (about both ways).    In the non-repairable case, it’s likely I could offer you a fair $ based on the scopes condition and I keep the broken scope.   If you were to provide me a detailed accurate description of your scope issues with pictures beforehand, it’s likely I could provide you with a reasonable probability of fixing your scope.
General Repair
(not including CRT issues, see below) -  If your scope doesn’t power up, doesn’t pass the self-test, doesn’t pass SPC (signal path compensation) I can usually fix these issues.   I will re-calibrate the scope after repairs are performed, but since I am not an accredited LAB, there will be no calibration certificate provided.  I have access to a multitude of accredited LABs, so I can provide a CERT if need.   You pay the extra costs of obtaining the CERT.  I have no control of the LAB’s CERT schedule, could be 2 to 3 weeks.  The cost for this general repair service (not including CERT) is 0 plus shipping costs.
Upgrade Service
-  I can upgrade your 500Mhz scope to 1Ghz. This service assumes there are no functional issues with your 500Mhz scope. If functional issues are detected with your 500Mhz scope, repair fees will apply (see other sections). The cost for the 500Mhz scope to 1Ghz service is 0.  This cost includes a re-calibration, no calibration certificate provided. You pay the shipping fees.
New Old Stock CRT Installation
– Is your CRT dim, has splotches, or just plain not showing anything at all.  I can replace the old CRT with a brand new color CRT which is exactly the same model CRT (OEM) as was installed at the factory.  The cost for this service is 0 which includes parts.  I.E. - 0 plus shipping gets you a new CRT installed.   Sometimes the CRT being dead is not the only issue with the scope so additional cost described above in the General Repair section may apply after fixing the CRT issue. If the scope is already in my hands for CRT repair and needs more repair, the General Repair fees drop to 0. (New Old Stock CRT Installation + General Repair  = 0 plus shipping)
Replace CRT with LCD
-  The LCD replacement has several benefits.  It significantly reduces the weight of the scope and generates far less heat than the CRT.  On those hot 100 degree Texas days, a LCD is greatly appreciated. The particular LCD to be installed does not disable the rear VGA port like most other LCDs do.  The cost for this service is 0 which includes parts.  I.E. - 0 plus shipping gets you a new LCD installed.
You pay for all shipping costs.  I have a secure receiving location and never had a lost package that was inbound to me, but it could happen.  And since my receiving location is a business address in the middle of the DFW metroplex you will not have to pay the significantly higher shipping costs for home or remote home delivery.  Shipping shall be either UPS or FedEx (both ways).
Any required parts found to be missing from the scope upon receipt are not covered under the flat repair fee.  It’s hard to repair a component that is missing.  I can replace missing parts, but you pay for the replacement part in this case.  Any parts removed or replaced with functionally equivalent parts during the repair process are not returned to the customer.
Calibration Service – I can re-calibrate the scope after repairs are performed. Re-calibration is included after a General Repair, but if you want a calibration after a CRT or LCD update, I can do that for an extra 0. After the scope passes the self test and SPC test, the scope can still fail the calibration so it's a good idea to have it calibrated.  There is no CERT provided with this CAL, but I do guarantee the re-calibrated scope will pass a NIST traceable certified laboratory calibration.
Turn Around Time - This time can vary based on my work load. Generally I will elevate your repair to the top of the list. I work 14 hour days, 7 days a week and there is always too much to do, but I do have human limitations like needing to sleep and eat periodically like the rest of us. So don't expect the scope to ship a day after I receive it.
Guaranty against recurrence of same problem(s) is 1 year. Tamper proof labels will be applied. If these labels are compromised, the guarantee expires.