Oscilloscope Tektronix DPO4054 500 MHz 2,5GS/s 4 channels repairable ? - Page 1
Forum section: electronics / repair

author: dems
author_rank: Contributor
timestamp: October 03, 2025, 06:27:14 pm
content: The Oscilloscope Tektronix DPO4054 500 MHz 2,5GS/s 4 channels, has the following error log. This error codes appaired during a wrong communication paramerter when calibrating with Fluke (Metcal program).What do these error codes correspond to?Also, the port USB et Compact Flash do not work on the oscilloscope. Is the oscilloscope repairable ?Thank you !

author: TinLethax
author_rank: Regular Contributor
timestamp: October 04, 2025, 01:21:21 am
content: Not so sure if DPO4000 can do this but you can tey. You can try hooking up the USB TMC or GPIB to your PC. Then use Tek OpenChoice to communicate with your PC via the Talker Listener program. Alternatively if it has eScope functionality, you can access the command from web.Then you type in:PASSWord INTEKRITY [Click write/send]:MFG:Mode ON [Click write/send]This should activate the manufacturer mode that the error log will gives you more detail.

author: dems
author_rank: Contributor
timestamp: October 04, 2025, 12:07:06 pm
content: What is the procedure for the calibration of an oscilloscope Tektronix DPO 4000 Series ?

author: TinLethax
author_rank: Regular Contributor
timestamp: October 06, 2025, 12:54:56 am
content: You can refer to calibration and adjustment process herehttps://download.tek.com/manual/077051201web.pdfBut I'm doubt that calibration would pass. First, try getting into the manufacture mode. This will show you more about the error message. Right now we totally have no idea why calibration was failed. It could be that the calibration data on the flash was corrupted. Or it could be that the previous calibration was failed due to hardware issue like broken offset DAC, broken PGA. Does the self test passed? Can you show us that info? There's too little information to diagnose.

author: dems
author_rank: Contributor
timestamp: October 06, 2025, 08:11:19 am
content: Quote from: TinLethax on October 06, 2025, 12:54:56 amPlease find the screen of the self test.Is there any other test to launch ?

author: TinLethax
author_rank: Regular Contributor
timestamp: October 06, 2025, 10:51:07 am
content: Everything looks ok. Can you try running the Signal Path Compensation ? Does it also generates error ?

author: dems
author_rank: Contributor
timestamp: October 06, 2025, 12:42:32 pm
content: Quote from: TinLethax on October 06, 2025, 10:51:07 amSignal Path Compensation doesn't generate error.

author: squadchannel
author_rank: Frequent Contributor
timestamp: October 06, 2025, 12:56:06 pm
content: if no errors appear self-test or SPC calibration, I believe it is not broken.it was likely left in the log by mistake by the technician when he did the calibration in 2007.Quote from: dems on October 03, 2025, 06:27:14 pmdid you make a mistake and leave it in the log?were you trying to adjust it?

author: dems
author_rank: Contributor
timestamp: October 06, 2025, 01:06:11 pm
content: Quote from: squadchannel on October 06, 2025, 12:56:06 pmIs it possible to erase error memory before running tests ?

author: coromonadalix
author_rank: Super Contributor
timestamp: October 06, 2025, 01:26:21 pm
content: i would say if your 2 tests show no errors i think your scope is fineif you have an high frequency generator you can try many frequencies up to 500Mhz and push it over until it drop significallymm i think TEK store the tests in files ? in the tek folder(s) ? no ?

author: dems
author_rank: Contributor
timestamp: October 06, 2025, 01:31:15 pm
content: Quote from: squadchannel on October 06, 2025, 12:56:06 pmPort USB et Compact Flash do not work on the oscilloscope. Does it mean the I/O part of the oscilloscope is broken ?

author: dems
author_rank: Contributor
timestamp: October 06, 2025, 01:47:45 pm
content: Quote from: coromonadalix on October 06, 2025, 01:26:21 pmYes! that makes sense to try frequencies until it drop significally. But, I have to spend money for a high frenquency signal generator.How can I access the tek folder ?