On Monday 29 September 2008, John S wrote:
  Hi,
 Last year I bought an RS/6000 Model 34H as I wanted a cheap example
 of an old Unix/AIX workstation. Having sorted out a monitor (with
 3W3 lead) the machine appears to be faulty.
 So far whenever I power it up, I see:
 - a series of numbers on the front LED display (got them listed on
 a piece of paper somewhere, sorry not got it to hand). - Nothing on
 the monitor
 - No activity on either of the 2 serial ports (using an RS232
 break-out box to a PC running terminal emulator)
 The machine didn't come with a manual, looking on the net I haven't
 found a source to buy a suitable manual let alone download one. 
Here's a list of SRNs (Service Request Numbers):
http://publib.boulder.ibm.com/infocenter/systems/scope/hw/index.jsp
Snoop around this site, and you'll likely find what you need regarding
manuals, etc.
  Currently the machine is sitting out of the way doing
nothing, I
 would like to see what the problem is before deciding whether to
 scrap it or try and repair it (assuming it is something like a
 failed SCSI hard drive).
 Can anyone advise what to try, or a list of what the LED numbers
 mean? Should for example the external SCSI connector have a
 terminator? 
See the above. I've been able to get just about every RS/6000 I've
obtained working. IBM Hardware and Software produces lots (perhaps
way too much) debugging information ;-)
Cheers,
Lyle
--
Lyle Bickley
Bickley Consulting West Inc.
Mountain View, CA 94040
http://bickleywest.com
"Black holes are where God is dividing by zero"