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Hi again. Viable (PROVEN!) good backups are essential of course.? There are any number of choices how to do that.? Local, or "in the cloud". Manually started, or done for you in the

We have sent this voltage drop problem on our ATE systems where there is plenty of power and current flying about - usually with Molex connectors yellowing due to contact oxidisation and heat

I spent a little time with the schematics and service manual. The service manual describes test 16 for the power supplies. It says that the supplies are checked only once at power up, not

I replaced the bench unit with a spare which I had in a test setup that isn't being used at the moment.? Doing some quick checks revealed when switched to the front jacks resistance would vary from 5

Yes, I have three of these, two of which I have recapped. One of them had a bad VCO which I was fortunate to be able to fix myself. I have had them apart many times now. I keep the various screws in

The self-test code said it failed because there was less than 5 volt (wherever it is testing). I checked the voltages at the Molex connector going to the motherboard. It was 4.9-something, I don't

I agree with the pain of commissioning a new computer. I have 30 years of past work, along with all the support applications (compilers, specialized IDEs, etc.), along with all the data,

Jim, you should also check the computer salvage/resellers for motherbrds, memory, power supplies, etc. A lot of it is fairly inexpensive. Don Bitters

I thought you said you checked a TP at the output of the PS filter board where you saw the drop. The molex connector going to the motherboard is downstream of that. The connector from the main supply

I have: 1975 1977 1990 1993 1994 1995 1996 1997 1998 1999 2000 2x 2001 2x 2005 Anritsu 1998 2000 2001 You may pick them up in San Mateo, CA. No shipping. All one lot for free, BUT you must take

If you looking for the quickest way to get back running, it's going to be to change the caps in the power supply and motherboard. It shouldn't take more than a couple of hours of work to change them

Hi Ed, just found this old message. Do You have a HP10543C left ? I am searching for on for a repair of a HP8660c. best regards, Olaf

The prohibition on wooden stuff is likely due in part to things like the emerald ash borer which has caused immense damage to our forests here in Michigan and likely elsewhere.? It supposedly came in

Wow Chris! That must have been a lot of work! Hat off to your efforts! My 8595E is happy, no PSU issues, but I saved your docs regardless, "you never know". Many thanks, Wilko

Ugh, the number of times that has happened to me. It's one of the reasons I left corporate work years ago and vowed never to return. They take a good design with carefully-chosen components and

Oh, and yes they are tinned pins. Grrrr. When I was designing things the purchasing department gave me hell about it, but I insisted that all the 0.025" pins HAD to be gold flashed.

TU Don. I don't remember seeing browning on the white connector body but I'll take a careful look. It "feels" like it has to be something bizarre like that!

This thread reminds me I have two old Dell mini-cabs running Win2k I got specifically to run MAME on for arcade cabinets. And a few old laptops I have been holding onto for a lab machine that is more

If your software can use USB/serial or Telnet to access the data, my KISS-488 offers a whole lot of OS-agnostic and platform-agnostic ways to access GPIB. www.hxengineering.com Steve Hendrix

Some HP gear used molex connectors for power to the motherboard. It is not uncommon for the higher current pins to show a brown heated condition. Easily proven by simply bypassing the pin with a big