Products > Test Equipment

REVIEW - Rigol DS2072 - First Impressions of the DS2000 series from Rigol

<< < (322/566) > >>

cybernet:

--- Quote from: marmad on July 23, 2013, 11:24:11 pm ---Looking again through Dave's teardown photos of the DS2000, and I noticed a pad labelled 'VIDEO OUT' and some unpopulated footprints near the first FPGA (connected to the ADC and sample memory).

I'm really curious about this... has anyone done any probing there - or have an idea what it may be for?

--- End quote ---

if thats topside, then its the JTAG for BFIN (no other parts on that chain)

marmad:

--- Quote from: darrylp on July 24, 2013, 07:34:39 pm ---is that 14 way header a known jtag for something ?  or is it a VGA header ? which would have 5 pins ?

--- End quote ---

There are no connections top or bottom between the 'video out' footprints and the header.

I assumed it was a composite video out - but of what exactly? It appears to be coming from the FPGA that controls sampling - not the one dealing with display memory.

Carrington:
Yes, it's very strange, Also the video output seems to return to the fpga. No return, out fron the FPGA!
To the 10 pin IC reach from the right three tracks: Analog RGB? or Digital? Analog Sync!
Very strange.  ???

UberSteve:
Anyone know if you can get a front dust cover for the DS2000? I've seen one for the DS4000...

Cheers,
Steve

Carrington:

--- Quote from: Carrington on July 25, 2013, 12:05:03 am ---Yes, it's very strange, Also the video output seems to return to the fpga. No return, out fron the FPGA!
To the 10 pin IC reach from the right three tracks: Analog RGB? or Digital? Analog Sync!
Very strange.  ???

--- End quote ---

http://www.ti.com/lit/ds/symlink/lmh1980.pdf 
Is a analog video sync separator for NTSC, PAL: 480I/P, 576I/P, 720P, 1080I/P/PsF
So it does have some sense. But why is unpopulated?   :box:

Navigation

[0] Message Index

[#] Next page

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod