Tektronix VM6000 help - Page 1
Forum section: electronics / repair

author: sprit
author_rank: Regular Contributor
timestamp: August 25, 2025, 09:27:18 am
content: Hello everyone, have a nice day.I have a problem and hope you can help me.I bought a used Tektronix VM6000 on FB market. The initial condition was a broken screen and a missing hard drive. After negotiating the price and bringing it home, I checked it and found that the PC mobo was also broken, luckily I have a few mobos with the same code and then I copied the bios from the old mobo to the new mobo and it booted successfully.Then I tried to restore it using the backup image of the VM6000 that I had previously asked for from member iAleks, but the problem started from there.Sometimes the screen would get past the welcome screen, but after the tekscope app started, everything became laggy.I could hear the relay clicking, but the app refused to start. When I moved the mouse around the screen, it was very laggy, all keystrokes responded very slowly. I tried to open task manager and the application "scope.exe" is taking up full 100% CPU. (there are 2 software in there, Tekscope.exe and scope.exe") if I close Tekscope.exe, the lag still happens, the scope.exe application does not close. but if I close the scope.exe application, the lag is gone, but the tekscope application still hangs as before. I went into safe mode to uninstall the old software and install the latest version for DPO7000 but everything after that is the same.Then I downloaded the backup image from xdevs site but the situation is worse, it doesn't even get past the welcome screen, then it gives a BSOD error.Sometimes the front keys will light up for a while then turn off when I turn on the power. When I get into windows it never lights up again.I checked in device manager but I didn't find any faulty drivers, all the drivers are displayed normally. I don't know what the cause isI checked the ACQ board, PWR board carefully and found no errors, all TP points give good voltage levels. I am wondering if this is a hardware fault? or just I installed the wrong image? By the way, if anyone has a backup of the DPO7104 series, can you share it with me? I would appreciate it.Regards,Feng

author: coromonadalix
author_rank: Super Contributor
timestamp: August 25, 2025, 10:40:30 am
content: there was some recent threads about a dpo7104, and i think an hdd backup was made and released ask the @OP ??

author: sprit
author_rank: Regular Contributor
timestamp: August 25, 2025, 02:36:42 pm
content: Quote from: coromonadalix on August 25, 2025, 10:40:30 amhi coromodalixI tried searching the forums but with no success, the old backups I have are corrupted

author: coromonadalix
author_rank: Super Contributor
timestamp: August 25, 2025, 02:46:17 pm
content: no promises i'll try to check in a few hoursthe basics as usual you need to be sure all vxwork related boot is okay, if your scope has a power pc boardnext all windows related drivers and some for the scope interface, touch, interface card etc ..... check in control panel hardware manager ... devices ...some reported 2 types of motherboard exists, you need to address witch one you havenext it would be the scope software ..

author: sprit
author_rank: Regular Contributor
timestamp: August 25, 2025, 02:56:48 pm
content: hi coromonadalix,The version I have is using Advandtech Mobo, model AIMB-562VG, using socket 775/ DDR 2 and I have a spare mobo exactly like the old one.Drivers are all loaded successfully, no errors in device manager, I don't remember which mobo my old VM6000 used.I don't think this series runs vxwork like the TDS7000 series, I checked the C: folder and didn't find any hidden VxWork folder.

author: coromonadalix
author_rank: Super Contributor
timestamp: August 25, 2025, 04:56:23 pm
content: ill check there was a diver package who was postedi need to check for witch one lollyeah some 7k series are not built the same, as we saw pictures of the mobo and acq board, i was confused, i tought it was only SW licensing who made the differenceand maybe for the 6000, your source maybe the same as the one i have ...

author: coromonadalix
author_rank: Super Contributor
timestamp: August 25, 2025, 07:37:58 pm
content: ok i have the same xdevs multipart isothere is an hdd image with an dpo7054 with aimb562 xp sp3 floating around 10gb in sizehttps://drive.google.com/file/d/1bRwL-hdsIdtKTPywOh5-EIalYA6v6Bo6/view?usp=drive_link

author: sprit
author_rank: Regular Contributor
timestamp: August 25, 2025, 09:27:17 pm
content: Thank you so much, i'll try it now. hope it work ^^

author: iAleks
author_rank: Regular Contributor
timestamp: August 26, 2025, 02:26:17 am
content: Hi!One year ago i do some experements with my donor DPO7054, and i found similar problem.its look like this windows satrt fine >tekskope.exe+scope.exe start and freeze on splash screen or after some second when menu booted >mouse, keybard and front panel not answer or laging. If im fast close scope.exe and tekscope.exe after windows start then windows work fine if im correctly remember.This problem i get after desolder 2 demux bga (start osciloscope without 2 demux chip).Check acqusition board (any damage, bga is fine?) connectors betwin acq. board and main board (all pin not bend? Or damaged?)And classic question upload here console.txt and diag.txt files, take photo acqusition board.

author: sprit
author_rank: Regular Contributor
timestamp: August 26, 2025, 08:03:45 pm
content: Hi everyone, have a nice dayI just tried the backup of coromodalix again but it failed, it is exactly the same as the old one I have. Maybe it is a hardware problem.The front panel did not light up during the process, now it says Low on registry memory, or stuck at the welcome screen,...The TPs on the PowerBoard and ACQ board do not show any abnormal signs, the status LEDs are all lit normally. A few days ago in the old backup, I even heard the sound of the relay, except that the application did not respond.By the way, does anyone know where the debug port of this model is? I don't know where it is, maybe there will be some trace when I access the uart.Thanks everyone

author: iAleks
author_rank: Regular Contributor
timestamp: August 26, 2025, 09:08:17 pm
content: Dpo7000 write all debug log errors and etc to files console.txt and debug.txt in hiden folder name callibration.i found scope DPO7104 with AIMB motherboard i can upload hdd image tell me witch file share site better for this? On google drive i dont have enought space

author: sprit
author_rank: Regular Contributor
timestamp: August 26, 2025, 09:45:18 pm
content: Hi ialeks, nice to meet you.You can try OneDriver of MicroSoft. btw thanks you so much

author: sprit
author_rank: Regular Contributor
timestamp: August 27, 2025, 12:58:07 am
content: Hi.Im thinking maybe i have hardware issues, 2 continues backup file but still stucking in welcome screen.

author: iAleks
author_rank: Regular Contributor
timestamp: August 27, 2025, 02:38:59 pm
content: HDDimage_DPO7104_MB=AIMB_WXSP3.rar 4.34Gb

author: sprit
author_rank: Regular Contributor
timestamp: August 27, 2025, 04:16:30 pm
content: Thanks ialeksi requested

author: coromonadalix
author_rank: Super Contributor
timestamp: August 27, 2025, 05:02:09 pm
content: Quote from: iAleks on August 27, 2025, 02:38:59 pmmade by macrium reflect ....

author: sprit
author_rank: Regular Contributor
timestamp: August 28, 2025, 05:01:55 am
content: hi everyone, how are you today?back to the main issue. i am suspecting that my new Mobo is having a problem, either the PWR board (radeon). when booting windows with the pwr board connected, the screen keeps getting stuck at the welcome screen. i have separated the acq board from the pwr board but the problem persists. when accessing safe mode, i see a driver called PCI is not installed. i have tried pointing to the subfolders in the Tektronix folder in drive C but cannot find the correct driver. either the mobo i replaced it with is having a problem, or the pwr board. currently the scope cannot get past the boot screen, i have backed up 8 drives at once but the problem persists. i am reordering a few other mobos from taobao (a famous chinese electronic components market). The goods will arrive in a few days, hopefully it will be fixed. i have also attached some related photos below.By the way, iAleks, can you tell me what the Hardware ID of the PCI above is? I have attached a picture below. This is the only driver I can't install in safe mode. It only appears when I plug in the PWR board, and is still there even if I remove the ACQ board. Thanks.The mobo name:The unknown PCI device appear in device managerThe PWR boardScope will frozen if i put the pwr board inHope it can help. Thank you very much.

author: iAleks
author_rank: Regular Contributor
timestamp: August 28, 2025, 06:36:01 am
content: Its named Tektronix Acqusition InterfaceI dont like this on your photoThis is my board

author: squadchannel
author_rank: Frequent Contributor
timestamp: August 28, 2025, 06:46:48 am
content: is this the configuration ROM for 82551? might be that the wrong configuration was written.But why did someone mess with this ROM?

author: sprit
author_rank: Regular Contributor
timestamp: August 28, 2025, 12:40:33 pm
content: Quote from: iAleks on August 28, 2025, 06:36:01 amHi iAleks, have a nice day.Yes, the modification wire on that chip i think is original, cuz as i remember, someone have that model they have same that wire mod. I dont touch these board, its still original as the day it arrived.Quote from: squadchannel on August 28, 2025, 06:46:48 amIdk. Here is some pictures of another ppl, with the same wire mod like me on the pwr board.Quote from: kissmu on April 07, 2022, 01:19:21 pm

author: coromonadalix
author_rank: Super Contributor
timestamp: August 28, 2025, 02:20:11 pm
content: hi just a small comment / side noteposting images elsewhere / outisde eevblog will create a future problem, the link will die, we wont be able to see them again .

author: sprit
author_rank: Regular Contributor
timestamp: August 28, 2025, 02:58:38 pm
content: HiSorry for the inconvenience. I am using postimg as the image storage.The phone I am using when taking photos, each photo will be ~10MB in size, larger than the forum's upload conditions, so I have to use an external link to attach the photo to the post without errors.

author: sprit
author_rank: Regular Contributor
timestamp: September 16, 2025, 11:52:50 pm
content: It was magical. Today I replaced it with another mobo with the same PN as the old one, and the BIOS was copied over and the problem persisted. The first time it would get past the Welcome screen,I quickly went into task manager to kill the scope application and then reinstalled the new drivers. And very quickly after that, after Windows told me I needed to restart, it got stuck on the Welcome screen again.... I couldn't get in to see what was going on. I have never encountered such an annoying case... Any suggestions? Thanks.

author: iAleks
author_rank: Regular Contributor
timestamp: September 17, 2025, 12:19:51 am
content: In this moment i have the same motherboard and Main board.i see difference in your photo and my boardSomething inserted in this connector on your board?On my board this connector empty.

author: coromonadalix
author_rank: Super Contributor
timestamp: September 17, 2025, 12:25:03 am
content: unless it loop tx and rx not supposed to have something there ?

author: sprit
author_rank: Regular Contributor
timestamp: September 17, 2025, 12:32:32 am
content: Hello ialeksI also noticed that jumper. But I saw it from the first time I got this VM6000. Let me take a picture with the PN of the power board for you, see if it is different from the one you have. It looks like this is similar to what another member of our Group has, where the EEPROM is also modified by wire mod.

author: sprit
author_rank: Regular Contributor
timestamp: September 17, 2025, 12:36:48 am
content: Quote from: coromonadalix on September 17, 2025, 12:25:03 amHi coromodalix,I haven't connected the uart to check (I don't actually know where it is) but I think Windows is having some kind of error that's preventing it from booting. I tried entering safe mode to check and found that all drivers were loaded successfully, no abnormalities detected.Now the Acquisition board is removed, only the power board is connected but still not working. It is still stuck on the Welcome screen.

author: sprit
author_rank: Regular Contributor
timestamp: September 17, 2025, 12:46:30 am
content: Here are some additional images of the PowerBoard

author: iAleks
author_rank: Regular Contributor
timestamp: September 17, 2025, 12:51:28 am
content: https://drive.google.com/file/d/1PdnyrsKjsR12cuF9NtDS-F3PIO1FFg_i/view?usp=sharingHere photo i read dump from all eeprom unless U1602, if need i can upload here.

author: sprit
author_rank: Regular Contributor
timestamp: September 17, 2025, 12:54:19 am
content: I think I remember a member also encountered a similar case, I remember he said that some EEPROM was faulty causing the scope to not boot, I tried searching but couldn't find itBtw, let me try again. Thank you very much.

author: sprit
author_rank: Regular Contributor
timestamp: September 17, 2025, 01:23:41 am
content: Hi iAleks, I see your board has this too. Do you have a dump rom of it? Thank you.

author: iAleks
author_rank: Regular Contributor
timestamp: September 17, 2025, 01:47:58 am
content: No, i think i can read it after 18 hours from this moment.

author: coromonadalix
author_rank: Super Contributor
timestamp: September 17, 2025, 02:26:53 pm
content: stuck on welcome ?? unless you have some memory problems, can you swap the memory, put 1 instead of 2 changing memory speed ?or the bios is not okay to help boot the system as some suggestnormally win2k is a pain because it will check the memory hardware and fail to boot, xp should be easy / easier ?and others did write possible eeprom corruption ??stupid idea can you boot on an external usb a bootable distro like linux or any lite 'nix variant it could help to fully check this motherboard adventure,or boot an old windows 98SE i know it is strange but in some w9x os they where slightly less "picky"to me we dont have an fully tested mobo ... before putting it in the scope, did you test it on the bench as a computer ? normally shorting the cmos clear and or shorting the batteyr pins once removed for a while should reset the mobo to defauts ? even on default it should boot ? do you see a full ram count / check ?the worst case would be some problems on the pci bus or elsewhere ?

author: sprit
author_rank: Regular Contributor
timestamp: September 18, 2025, 07:44:48 am
content: Hi coromodalix I have changed another mobo, changed cpu, ram but the problem still persists. Before attaching it I tested it myself and had no problems. Mobo is clear, full functions as i expected. The problem only happens when I plug it into the pci board. In the quote I said that, well in safe mode it still works fine, with all the drivers installed properly.

author: iAleks
author_rank: Regular Contributor
timestamp: September 19, 2025, 12:02:06 am
content: Here all dump from this board.But i think problem here in high speed digital bus from Main board (Power board) and Acqusition board, which connects FPGA in main board with DEMUXs.

author: coromonadalix
author_rank: Super Contributor
timestamp: September 19, 2025, 01:21:38 am
content: maybe the u1602 corruption .... surethis board is stalling the computer board maybe blocking some interrupts or the pci bus itself ...keep us informed maybe the dump may helpstrange to see the eeprom pins 1 and 2 inverted by patches ? unless there was an eeprom company / model change over the years ?

author: iAleks
author_rank: Regular Contributor
timestamp: September 19, 2025, 01:59:25 am
content: Yes, all can be.If this not help try measure resistance on IO connector on Acqusition board, i attach resistance on my working board.

author: sprit
author_rank: Regular Contributor
timestamp: September 29, 2025, 03:44:20 am
content: Hi everyone.Today I have some free time so I'm back to repairing this VM6000. Currently I am still having an error that I cannot start Windows. In Safe Mode I see a PCI Driver but I don't know how to install it.I tried pointing to the driver folders in the Tektronix folder but it didn't work, still no compatible drivers.I also deleted the bootlogging line in the environment but it didn't work.By the way, let me ask, in the Tektronix driver in Device Manager, is it shown as the picture correctly? What should I check next? Speaking of EEPROM, I tried reading it and determined that there was data in it, or at least I saw that it was not blank. Is there any way to find out which driver is causing the error and then look in Safe Mode? Thanks for your comments.