"sokolov@alpha.CES.CWRU.Edu" "Michael Sokolov" wrote:

>   As I have said in my message to Long Wang, which I copied to you and
>port-vax, disassembing the external case was the very first thing I did,
>and I was testing BOTH the CDU-541 aka RRD42 and the CDU-561 by connecting
>them to the power supply from that case. Although now it's sitting in my
>IBM PC AT compatible's internal bay, the CDU-561 was working perfectly WITH
>THAT POWER SUPPLY, which indicates that it's good.

Well if the PSU is OK then that only leaves a dead CD and I don't think there is 
too much you can do about that. (At least I've never tried to fix one so I 
wouldn't know where to start).

Antonio

Antonio Carlini                            Mail: carlini@marvin.enet.dec.com
DECnet-Plus for OpenVMS Engineering
Digital Equipment Corporation              Worton Grange, Reading, England