Many times we have to add additional tests that requires adding wires in the fixture. My board has 3 pressed fit mounting washers need to be tested at ICT for presence. The fixture vendor put 3 switches there with wires ready to be wired to the fixture. I do have the mounting hole with the …
All shorts test fail on all boards and yesterday they’re fine. Before we debug our fixture, run diagnostic for the system and find out one of the hybrid cards we used for the fixture has bad relays. We swapped the hybrid card and it moved to the new slot. While waiting for the service people …
ICT test engineers in smaller OEM companies normally wear many hats, system maintenance is one of them. We may have the luxury of having a system in the company and it does fail once in a while although HP3070 is extremely reliable. When we run diagnostic for the whole system and we see failures on …
These days, most of the CEMs HP3070 systems are old and some are not well kept up, their pins cards may fail in the middle of the run and our production line may halt for days. I believe in optimizing the config file to use as fewer hybrids cards and power supplies as possible. The …
I had to program PIC28F8722 micro controller at ICT test station. I found a solution for less than $300. and some custom fixture designs. The main board design must have a 5 pins header which has ICT test points. MCLR, DATA, SCLK, GND, VCC. I found a PIC program to go on the internet for …
I always set tolerances for all passive components in the board file to 1% to make sure IPG generates all guarding possible. For testing stability, I change all resistors to 10% and capacitors to 20%. If a board has many components with the same values, chances are, the tolerance for these components are generated the …
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If we want our analog tests to run much faster, make sure our config file is using control xt instead of control plus. The control plus can run with control xt compiled system, but not the other way around. If the program is develop with control plus, in order to use control xt option, we …
These days, the backup tapes have been obsoleted, we don’t use them to back up and restore any more. Most of the working directories are backed up in Gzip files and transferred through ftb website, it’s fast, efficient and more reliable than these tapes. So, we normally pack the folder in tar format then gzip …
1. Connect the device through the HPIB of the power supply HP6624A (HPIB) or whatever your power supply model may be. To check the hpib bus, go to shell as root: /opt/hp3070/bin/btio -hpib -scan (this will tell you which HPIB exists, it should display your HP6624A or HP6621A). [non-members]please log in to continue reading… Thanks[/non-members][members] …