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Looking for PCIE LVDS card for Agilent MSO Infiniium scope
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nexus:
Hi all,

Working on a few pieces of Agilent gear. One is a DSO81304B scope that I took a gamble on. Fortunately, it was not obliterated in overseas shipping and it seems to be almost fully functional.

The principal issue it has is with the display. I believe the PCI-E based LVDS display card is dead. I attached a pic of the card for reference.

Here is a link to the part on the keysight website:
https://www.keysight.com/my/partDetail/0960-2530 . It appears to be out of stock since there is no "Add to cart" button as with other parts.

The unit does not want to boot with this card installed. However, without this card it boots just fine and works with an external VGA monitor.

This card was used in a lot of DSO infiniium scopes. According to the KS website, the list is as follows:

DSO80204B
DSO80304B
DSO80404B
DSO80604B
DSO8064A
DSO80804B
DSO81004B
DSO8104A
DSO81204B
DSO81304B
MSO8064A
MSO8104A

Would anyone happen to have this part laying around or in a parts unit? Or know where to acquire a replacement board?

I've also found the main LVDS chipset IC on eBay (Chrontel CH7308) and ordered it, but no guarantees that it will fix the problem.

Many thanks,
Kevin
nctnico:
There are a whole bunch of fuses on the board. I'd check if nothing is shorted on the display. Maybe it simply draws too much current. Does the scope boot with the card installed but with the display NOT connected?

There are also a whole bunch of tantalum capacitors installed on the card. Are none of these shorted?

BTW: is U4 an I2C Eeprom or something else? If it is something else, then it could be U6 has been pulled out. The Chrontel chip likely needs configuration data in order to work properly and that is typically stored in a I2C Eeprom.
gslick:

--- Quote from: nexus on September 10, 2022, 06:24:51 pm ---The principal issue it has is with the display. I believe the PCI-E based LVDS display card is dead. I attached a pic of the card for reference.

--- End quote ---

FWIW, while that display card plugs into a PCI-E slot, it is not really a PCI-E device. I believe that display card is what is called an ADD2 card (Advanced Digital Display Card – 2nd Generation), which connects to the SDVO (Serial Digital Video Out) interface channel, which is multiplexed on a portion of the x16 graphics PCI Express interface. The SDVO display channel is an Intel chipset specific feature present on the Intel 82915G GMCH (Graphics and Memory Controller Hub), and some other Intel chipsets.
gslick:

--- Quote from: nctnico on September 10, 2022, 06:34:23 pm ---BTW: is U4 an I2C Eeprom or something else? If it is something else, then it could be U6 has been pulled out. The Chrontel chip likely needs configuration data in order to work properly and that is typically stored in a I2C Eeprom.

--- End quote ---

That part is not populated in the image from the Keysight parts page:

https://www.keysight.com/my/partDetail/0960-2530

nctnico:
It is. U6 and U4 are on the board twice. Once as DIP8 and once as SOIC8. U4 in SOIC8 is populated but I can't see what it is.
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