Electronics Forum | Mon Aug 31 16:48:16 EDT 2020 | aurash
I wish it was so simple :-) In their wisdom the machine designers choice was to have servo drivers with two channels (one channel less powerful and one channel more powerful) - so each card is driving a X motor and a Y motor.(the X axis is made of 2
Electronics Forum | Sat Aug 22 16:53:32 EDT 2020 | jmelson
I'm trying to diagnose a Quad QSA-30A machine that won't go ready. I have the machine technical drawings, they have overall machine schematics and cable wiring on most of the cables, but that's all. Does anyone have access to the schematics of the
Electronics Forum | Wed Aug 26 15:00:08 EDT 2020 | jmelson
That's a rev 1 board, my machine has a rev 2. I have no idea if they are interchangeable. So, I bought a Rev 2 board from Korea. But, I'm flying pretty blind on this. I have traced the ready button signal to a microprocessor pin on the IO_DPRAM bo
Electronics Forum | Mon Aug 24 21:16:57 EDT 2020 | smith88
I am trying to teach a class and the question came up about loss of metalization of the Earth pad on a chip filter. This pad is on the side of the component. I can not find a IPC call out for this type of side termination other than 3 or 5 sided 9.1.
Electronics Forum | Tue Aug 25 20:06:12 EDT 2020 | ldavis
Yes, this consumption rate is normal for a high purity N2 process. We switched to a generator and had a payback of about 7 months. The bigger improvement than cost reduction though was in process consistency. When we were switching bottles we were
Electronics Forum | Wed Aug 26 15:44:23 EDT 2020 | dwl
I agree with the other posters. A bottle will last a day tops, A dewar should last a week or two. Dewars have a limited shelf life as the liquid nitrogen will vent even if your aren't using it. My experience is with ACE machines. Bottles are really
Electronics Forum | Fri Aug 28 12:46:04 EDT 2020 | inspiredmorris20
Greetings all, my cp45 pnp machine is down this morning, gives me the code 0002 (front EME switch pressed). operator said they did not E-Stop, reset the unit and reboot the S/W a few times. the code pops up as soon as the software loads. I can turn
Electronics Forum | Fri Aug 28 17:24:28 EDT 2020 | stephendo
Did you check all the voltages and fuses? The second worst is when a machine is down for a while and it ends up being something basic. The worst is when it started as something basic and someone introduces a new problem. Also could there be any opti
Electronics Forum | Mon Aug 31 15:39:18 EDT 2020 | jmelson
Yes, the rightmost VME board is the IO_DPRAM, and it also handles the front panel buttons and E-stop inputs to the computer(s). So, reseat the connectors on the front of that board. Also, there may be an interface board on the bottom left (called C
Electronics Forum | Mon Aug 31 16:30:01 EDT 2020 | emeto
I would question your motive "There's no way that I feel comfortable shipping boards after a selective without cleaning them, the amount of flux on the board is significantly more than from SMT". 1. Who said that residue should be cleaned and why? O
