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Products => Test Equipment => Topic started by: langlv on March 08, 2021, 11:53:46 am

Title: Tek VM6000
Post by: langlv on March 08, 2021, 11:53:46 am

Hi all,
I'm lucky to buy a Tek VM6000 (1GHz). Just peel off the 1st sticker and it's now a DPO7254. May be with some firmware metamorphosis, it will change to DPO7354. :)
Lang

Title: Re: Tek VM6000
Post by: d37duck on April 02, 2021, 04:40:01 pm

Hi,

Congratulations on your luck.  I looked for a service manual for your scope and can't fine one, so I have a question.  Have you looked inside to see your VM6000 to see if it is made from DPO7000 parts? 

The Tektronix Service manual for DPO7000 (part number 077-0076-03) is available from their website and identified parts. The PC mother board should be an Intel D945 or Advantech AIMB-562.  The Interface PCB is Part Number 671-5912-02 (the -02 part might very).   The Acquisition PCB for DPO7104 and DPO7054 is 672-6166-54, for DPO7254 it's 672-5819-54, and for DPO7354 it's 672-6172-50.

What is inside a VM6000?

Thanks,

Title: Re: Tek VM6000
Post by: langlv on April 13, 2021, 09:26:44 am

Hi d37duck,

I opened the VM6000 few months ago to upgrade the CPU. It is based on a Intel D945 mobo which accepts up to Pentium dual core, not Core 2 Duo. I did not remember the part number of others boards. Normally a VM6000 is based on the DPO7104, but this one is truly a DPO7254 with 40 GS/s on single channel. The front sticker is VM6000-1GS/s, and the rear sticker is DPO7254. There is no probe with it, but an adaptor for testing video items.

I am confident that the DPO7354 is "simply" a DPO7254 with hidden license key (or model_ID). According to the manual, even the DPO7354 supports only 2.5GHz analog bandwidth, and use DSP tweaking for achieve the 3.5GHz limit.

best.