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 | 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 07:24:29 EDT 2020 | sarason
Have you tried this solution https://www.ebay.co.uk/itm/SAMSUNG-CP30-VME-10-DPRAM-REV-001-03-I-O-BOARD/173217871888 sarason
Electronics Forum | Fri Dec 31 12:26:29 EST 2010 | kvael
Has any one had this problem? Dynatech says it is the I/O Dpram board, sold me one that dosen't work. Bought a second Dpram from SMTBOX, still have the same original problem. During Dpram initialization error comes up "no command response from handl
Electronics Forum | Mon Dec 13 11:27:39 EST 2010 | kvael
I have a Samsung CP30V machine that when starting up gives me the error "NO COMMAND RESPONSE FROM HANDLER". Has anyone had this problem. I have replaced the I/O Dpram board, no change.
Electronics Forum | Wed Aug 26 15:10:04 EDT 2020 | jmelson
Thanks, I have ordered a replacement IO_DPRAM board from Korea, we will see if it fixes the problem. 2 weeks ago, right after I got the machine, it would go ready. After a couple days, it would no longer respond to the ready button. All attempts
Electronics Forum | Thu Dec 31 12:21:44 EST 2020 | ecogroup
I Changed old parts to New Parts for: All 5 Magnetic Contactors, Circuit Breaker/Protector 1, I/O Switch housing + contact blocks, both 12v and 110v relays. Still CP40 contactors won't engage after I/O Switch is pressed, G9D-301 Safety Relay Power Le
Electronics Forum | Mon Aug 17 15:19:16 EDT 2020 | jmelson
I have a (new to me) Quad QSA-30A that I just got about a week ago. At first, I could get it to go ready most of the time, now it will never go ready. I have traced the ready button into the DPRAM board and the logic is OK all the way into one of t
Electronics Forum | Sun Aug 16 18:38:19 EDT 2020 | jmelson
Well, I have now traced the ready button all the way into the DPRAM board, and all looks good going into a big flat pack chip, valid TTL logic levels when I press the button. But, the machine will not go ready. I have no errors in the system error
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
