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| Hantek HDG2002B AWG: 5Mhz or 100MHz? Let's see! |
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| smgvbest:
Just got my HDG2002B and did the bandwidth mod without any issue's (after I found my 3.3V USB-TTL adapter) Verified everything worked as planned and it did now goes to 100MHz. a few things I did notice before and and after the mod Before opening the unit I ran s self text and everything passed except the CH1/2 Zone test which failed. I searched this thread and saw one mention of if but no one replied so wondering if this is normal? Next after opening the unit there were a few things I noticed The metal shields are not present around the output section of my unit it looks like a few relays were hand soldered and the melted the casing when soldering See Image. It looks like it's surface damage only but it bugs me on a new unit seeing this. Also you can see the cans missing from the output section. I Highlighted the RJ45, Magnetics and Crystal as well as hopefully labeled the Serial Port Correctly in this view |
| alex.forencich:
--- Quote from: smgvbest on January 16, 2015, 08:07:40 am ---Just got my HDG2002B and did the bandwidth mod without any issue's (after I found my 3.3V USB-TTL adapter) Verified everything worked as planned and it did now goes to 100MHz. a few things I did notice before and and after the mod Before opening the unit I ran s self text and everything passed except the CH1/2 Zone test which failed. I searched this thread and saw one mention of if but no one replied so wondering if this is normal? Next after opening the unit there were a few things I noticed The metal shields are not present around the output section of my unit it looks like a few relays were hand soldered and the melted the casing when soldering See Image. It looks like it's surface damage only but it bugs me on a new unit seeing this. Also you can see the cans missing from the output section. --- End quote --- The cans were missing on mine as well. The relays also look hand soldered, but it seems they did a better job on the one I got. They are bowed out on the top, but I think that is normal for these things. |
| andrija:
Those relays look like they were pulled from a 10 year old equipment used by a smoker. Not saying they aren't new but they sure don't look new to me. My own unit looks fine. Software, not so much. |
| smgvbest:
Could someone run the self test on thier unit and see if it fails one of the zone tests on each channel please? |
| Howardlong:
--- Quote from: smgvbest on January 16, 2015, 10:29:26 am ---Could someone run the self test on thier unit and see if it fails one of the zone tests on each channel please? --- End quote --- Here are my results: |
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