[Test-Equipment] HP 5315B counter problem

[Brian Crawford]

Thanks Nigel, You are right, It's been so long with this on my bench had
forgotten about this, but !! the available manual did not include that
actual troubleshooting/error section (not giving any information on details
of or resolving the error)  In addition the diagrams/schematics that I was
able to obtain we're unreadable (basically black as I recall).
I wish I had remembered this and included it in the post.  Sorry to mislead.
Brian VE7BGC

-----Original Message-----
From: gandalfg8 at aol.com [mailto:gandalfg8 at aol.com] 
Sent: Monday, January 18, 2010 11:42 AM
To: Brian.Crawford at shaw.ca
Subject: Re: [Test-Equipment] HP 5315B counter problem



In a message dated 18/01/2010 19:17:06 GMT Standard Time,  
Brian.Crawford at shaw.ca writes:
I have an HP 5315B counter that gives me an  error (#3) on startup.  I have
not been able to obtain any useful  information (nor schematic) for this
device.  Any suggestions on the  cause of the error.  Once past the error 
the
digits display (blank or  zero) but it does not count.

----------------
Hi Brian

A manual  is available for download from Agilent.
It doesn't seem to have any  schematics but this is what it says re error 
messages.....

3-55. ERROR  MESSAGES

3-56. Failures during the power-up self-check routine will result in a  
(momentary) display of a
numbered error message. In addition, the ERROR  annunciator will light and 
remain lit until
the error is cleared and the  instrument restarted. There are three 
numbered Error Messages:

E1  -- Possible Failure in Microcomputer
E2 -- Possible Failure in I/O  Ports
E3 -- Possible Failure in MRC or No Oscillator Signal


3-57.  If the ERROR annunciator is lit, verify the error number (1,2, or 3) 
by  repeating the powerup
self-check, and refer to Section VIII, Troubleshooting.  Power-up 
self-check is initiated when
the POWER switch is changed from STBY  to ON.
 
Hope this helps
 
Regards
 
Nigel
GM8PZR