Hi Paul ? ? ? ? ? ?Thanks for the kind reply. The 200 could be the CPU or the bulkhead.? As there's not much in the bulkhead and it kinda faded out its most likely the Ethernet chip on the CPU board. The 500 is probably the PSU. As with many SMPS its trying to start up and failing.? Anything that's a closed loop control system ain't easy. I don't fancy trying to fix it as its tightly packed and full of nasty voltages. If I remember rightly those PSU's needed a test rig that simulated the loads. ? No hurry but if you do come across either item I'd be interested. ?I'll be in Germany from next week on. Back around July 2nd Regards Rod ________________________________ From: Paul Anderson <useddec at gmail.com> To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Sent: Wednesday, 11 June 2014, 19:39 Subject: Re: Looking for VAX spares Hi Rod, I have a few 4000s here and some spares, but it might take a few days. Paul On Wed, Jun 11, 2014 at 5:45 AM, R SMALLWOOD <rodsmallwood52 at btinternet.com> wrote:

Hi ? ? ?I replaced the battery in the bulkhead when I got the system. ? However I'll check for corrosion that may have already been there as I have had that happen on other systems. Thanks? Rod ________________________________ From: Glen Slick <glen.slick at gmail.com> To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Sent: Wednesday, 11 June 2014, 22:02 Subject: Re: Looking for VAX spares On Wed, Jun 11, 2014 at 1:02 PM, R SMALLWOOD <rodsmallwood52 at btinternet.com> wrote: Do you still have the NiCad battery pack in the KA660 bulkhead? Those have a nasty habit of leaking and corroding the connections inside the bulkhead panel.