Yea, why did I even ask
I should know better! Waaaaayyyyy too expensive.
I have two units with same error but one has all power rails working properly and one has shorted -15 and +15.
So same error covers a lot of different issues.
You're probably right. I can see the self test routine:
1 to 199: Run a whole bunch of self tests.
200: If anything fails, sit there and look stupid.
So the four units I have were bought by a friend of mine who brings me lots of repair work from a Govt. auction. Normally, he doesn't buy test gear, but other industrial equipment (hardness testers, etc)
https://www.govdeals.com/index.cfm?fa=Main.Item&itemid=17539&acctid=2863If he had asked me about them before buying, I would have told him to stay away!
Symptoms:
1. All hang at the init screen.
2. When there is a USB thumb drive plugged in, three of them access the drive at 2 seconds and 8 seconds after powering on. No further accesses are done after that. The fourth one accesses the drive at 2 seconds, then at 3 second intervals over and over forever.
3. All voltage rails are verified and correct.
4. None respond to a GPIB scanning
5.All connect to LAN, and activity pulses can be seen at two second intervals. One time I saw one of them connect to my Asus router and get an IP address. I was unable to get it to repeat this though...
6. I never see any data going across the opto-coupler transmitter at DS3. The other one is transmitting a steady stream of pulses. I'll have to check whether the receiver is getting them, but you got to pull the board or remove the cover to access it. @ TiN: Does this sound like yours?
EDIT: The data stream from DS2 is making it across fine. Whether the data is correct, though...